Enter records

ID: 60997
Title: Multitemporal settlement and population mapping from Landsat using Google Earth Engine.
Author: Nirav N.Patel, Emanuele Angiuli, Paolo Gamba, Andrea Gaughan, Gianni Lisini, Forrest R. Stevens, Andrew J. Tatem, Giovanna Trianni.
Editor: F.D.van der Meer
Year: 2015
Publisher: Elsevier B.V.
Source: Centre for Ecological Sciences
Reference: APPLIED EARTH OBSERVATION AND GEOINFORMATION. Vol. 35 (B) 199-208 (2015).
Subject: APPLIED EARTH OBSERVATION AND GEOINFORMATION.
Keywords: Landsat, Multitemporal, Population mapping, Google Earth Engine, Settlement mapping, Urbanization, Spatial demography.
Abstract: As countries become increasingly urbanized, understanding how urban areas are changing within the landscape becomes increasingly important. Urbanized areas are often the strongest indicators of human interaction with the environment, and understanding how urban areas develop through remotely sensed data allows for more sustainable practices. The Google Earth Engine (GEE) leverages cloud computing services to provide analysis capabilities on over 40 years of Landsat data. As a remote sensing platform, its ability to analyze global data rapidly lends itself to being an invaluable tool for studying the growth of urban areas. Here we present (i) An approach for the automated extraction of urban areas from Land-sat imagery using GEE, validated using higher resolution images, (ii) a novel method of validation of the extracted urban extents using changes in the statistical performance of a high resolution population mapping method. Temporally distinct urban extractions were classified from the GEE catalog of Landsat 5 and 7 data over the Indonesia island of Java by using a Normalized Difference Spectral Vector (NDSV) method. Statistical evaluation of all of the tests was performed, and the value of population mapping methods in validating these urban extents was also examined. Results showed that automated classification from GEE produced accurate urban extent maps, and that the integration of GEE-derived urban extents also improved the quality of the population mapping outputs.
Location: T E 15 New Biology Building.
Literature cited 1: Alberti, M., Weeks, R., Coe, S., 2004. Urban land cover change analysis in central Puget sound. Photogramm.Eng.Remote Sens. 70 (9), 1043-1052, http:dx.doi.org/10.14358/PERS.70.9.1043. Angel, S., Sheppard, S.C., Civco, D.L., Buckley, R., Chabaeva, A., Gitlin, L., Kraley, A., Parent, J., Perlin, M., 2005. The dynamics of global urban expansion.WorldBank, Transport and Urban Development Department, Washington, D.C.
Literature cited 2: Angiuli, E., Trianni, G., 2014. Urban mapping in Landsat images based on Normalized Difference Spectral Vector.IEEE Geosci.Remote Sens. 11 (3), 661-665, http://dx.doi.org/10.1109/LGRS.2013.2274327. Bagan, H., Yamagata, Y., 2012. Landsat analysis of urban growth: how Tokyo became the world ' s largest megacity during the last 40 years. Remote Sens. Environ. 127, 210-222, http: dx.doi.org/10.1016/j.rse.2012.09.011.

ID: 60996
Title: Spatiotemporal variability of urban growth factors: A global and local perspective on the megacity of Mumbai.
Author: Hossein Shafizadeh-Moghadam, Marco Helbich.
Editor: F.D.van der Meer
Year: 2015
Publisher: Elsevier B.V.
Source: Centre for Ecological Sciences
Reference: APPLIED EARTH OBSERVATION AND GEOINFORMATION. Vol. 35 (B) 187-198 (2015).
Subject: APPLIED EARTH OBSERVATION AND GEOINFORMATION.
Keywords: Urban growth, Logistic regression, Autologistic regression, Geographically weighted logistic regression, GIS.
Abstract: The rapid growth of megacities requires special attention among urban planners worldwide, and particularly in Mumbai, India, where growth is very pronounced. To cope with the planning challenges this will bring, developing a retrospective understanding of urban land-use dynamics and the underlying driving -forces behind urban growth is a key prerequisite. This research uses regression-based land-use change models-and in particular non-spatial logistic regression models (LR) and auto-logistic regression models (ALR)-for the Mumbai region over the period 1973-2010, in order to determine the drivers behind spatiotemporal urban expansion. Both global models are complemented by a local, spatial model, the so called geographically weighted logistic regression (GWLR) model, one that explicitly permits variations in driving-forces behind urban growth over time, revealing that LRs and ALRs result in estimated coefficients with comparable magnitudes. Second, all the local coefficients show distinctive temporal and spatial variations. It is therefore concluded that GWLR aids our understanding of urban growth processes, and so can assist context-related planning and policymaking activities when seeking to secure a sustainable urban future.
Location: T E 15 New Biology Building.
Literature cited 1: Aljoufie, M., Zuidgeest, M., Brussel, M., van Vliet, J., van Maarseveen, M., 2013. A cellular automata-based land use and transport interaction model applied to Jeddah, Saudi Arabia, Landsc.Urban Plan.112, 89-99. Anselin, L., 2009. Spatial regression. In: Fotheringham, S., Rogerson, P. (Eds), The SAGE Handbook of Spatial Analysis, Los Angeles. Sage Publications Inc, pp. 255-276.
Literature cited 2: Atkinson., P, German, S., Sear, D., Clark, M., 2003. Exploring the relations between riverbank erosion and geomorphological controls using geographically weighted logistic regression. Geogr.Anal.35, 58-82. Augustin, N., Mugglestone, M., Buckland, S., 1996. An autologistic model for the spatial distribution of wildlife.j.Appl.Ecol., 339-347.

ID: 60995
Title: Dynamic simulation of vegetation abundance in a reservoir riparian zone using a sub-pixel Markov model.
Author: Zhaning Gong, Tianxing Cui, Ruiliang Pu, Chuan Lin, Yuzhu Chen.
Editor: F.D.van der Meer
Year: 2015
Publisher: Elsevier B.V.
Source: Centre for Ecological Sciences
Reference: APPLIED EARTH OBSERVATION AND GEOINFORMATION. Vol. 35 (B) 175-186 (2015).
Subject: APPLIED EARTH OBSERVATION AND GEOINFORMATION.
Keywords: Vegetation abundance, LSMA, Sub-pixel Markov, Reservoir riparian zone.
Abstract: Vegetation abundance is a significant indicator for measuring the coverage of plant community. It is also a fundamental data for the evaluation of a reservoir riparian zone eco-environment. In this study, a sub-pixel Markov model was introduced and applied to simulate dynamics of vegetation abundance in the Guanting Reservoir Riparian zone based on Landsat Thematic Mapper/Enhanced Thematic Mapper Plus /Operationl Land Imager data acquired between 2001 and 2013. Our study extended Markov model ' s application from a traditional regional scale to a sub-pixel scale. Firstly, Linear Spectral Mixture Analysis (LSMA) was used to obtain fractional images with a five-endmember model consisting of terrestrial plants, aquatic plants, high albedo, low albedo, and bare soil. Then, a sub-pixel transitive probability matrix was calculated. Based on the matrix, we stimulated statuses of vegetation abundance in 2010 and 2013, which were compared with the results created by LSMA. Validations showed that there were only slight differences between the LSMA derived results and the simulated terrestrial plants fractional images for both 2010 and 2013, while obvious differences existed for aquatic plants fractional images, which might be attributed to a dramatically diversity of water level and water discharge between 2001 and 2013. Moreover, the sub-pixel Markov could lead to an RMSE (Root mean square Error) of 0.105 and an R2 of 0.808 for terrestrial plants, and an RMSE of 0.044 and an R2 of 0.784 for aquatic plants in 2010. For the simulated results with the 2013 image, an RMSE of 0.086 and an R2 of 0.779 could be yielded for aquatic plants. These results suggested that the sub-pixel Markov model could yield a reasonable result in a short period. Additionally, an analysis of dynamics of vegetation abundance from 2001 to 2020 indicated that there existed an increasing trend for the average fractional value of terrestrial plants and a decreasing trend for aquatic plants.
Location: T E 15 New Biology Building.
Literature cited 1: Aaviskoo, K., 1995.Simulating vegetation dynamics and land use in a mire landscape using a Markov model. Landsc.Urban plan. 31 (1), 129-142, http://dx.doi.org/10.1016/0169-2046 (94) 01045-A. Adams, J.B., Sabol, D.E., Kapos, V., et al., 1995.Classification of multispectral images based on fractions of endmembers: application to land-cover change in the Brazilian Amazon. Remote Sens. Environ. 52 (2), 137 -154, change in the Brazilian Amazon. Remote Sens.Environ.52 (2), 137-154,http://dx.doi.org/10.1016/0034-4257 (94) 00098-8
Literature cited 2: Alex, O.O., Blackburn, G.A., 2011. Forest transition in an ecologically important region: patterns and causes for landscape dynamics in the Niger Delta.Ecol.Indic.11 (5), 1437-1446,http://dx.doi.org/10.1016/j.ecolind.2011.03.017. Asis, A.M.D., Omasa, K., Oki, K., Shinizu, Y., 2008. Accuracy and applicability of linear spectral unmixing in delineating potential erosion areas in tropical watersheds.Int.J.Remote Sens.29 (14), 4151-4171, http://dx.doi.org/10.1080/01431160701874579.

ID: 60994
Title: Drivers of land cover and land use changes in St.Louis metropolitan area over the past 40 years characterized by remote sensing and census population data.
Author: Maitiniyazi Maimaitijiang, Abduwasit Ghulam, J.S. Onesimo Sandoval, Matthew Maimaitiyiming.
Editor: F.D.van der Meer
Year: 2015
Publisher: Elsevier B.V.
Source: Centre for Ecological Sciences
Reference: APPLIED EARTH OBSERVATION AND GEOINFORMATION. Vol. 35 (B) 161-174 (2015).
Subject: APPLIED EARTH OBSERVATION AND GEOINFORMATION.
Keywords: Urban growth, Land cover and land use, Geographically weighted regression.
Abstract: In this study, we explored the spatial and temporal patterns of land cover and land use (LCLU) and population change dynamics in the St.Louis Metropolitan Statistical Area. The goal of this paper was to quantify the drivers of LCLU using long-term Landsat data from 1972 to 2010. First, we produced LCLU maps by using Landsat images from 1972, 1982, 1990, 2000, and 2010. Next, tract level population data of 1970, 1980, 1990, 2000, and 2010 were converted to 1-km square grid cells. Then, the LCLU maps were integrated with basic grid cell data to represent the proportion of each land cover category within a grid cell area. Finally, the proportional land cover maps and population census data were combined to investigate the relationship between land cover and population change based on grid cells using Pearson ' s correlation coefficient, ordinary least square (OLS), and local level geographically weighted regression (GWR). Land cover changes in terms of the percentage of area affected and rates of change were compared with population census data with a focus on the analysis of the spatial-temporal dynamics of urban growth patterns. The correlation coefficients of land cover categories and population changes were calculated for two decadal intervals between 1970 and 2010. Our results showed a causal relationship between LCLU changes and population dynamics over the last 40 years. Urban sprawl was positively correlated with population change. However, the relationship was not linear over space and time. Spatial heterogeneity and variations in the relationship demonstrate that urban sprawl was positively correlated with population changes in suburban area and negatively correlated in urban core and inner suburban area of the St. Louis Metropolitan Statistical Area. These results suggest that the imagery reflects processes of urban growth, inner-city decline, population migration, and social spatial inequality. The implications provide guidance for sustainable urban planning and development. We also demonstrate that grid cells allow robust synthesis of remote sensing and socioeconomic data to advance our knowledge of urban growth dynamics from both spatial and temporal scales and its association with population change.
Location: T E 15 New Biology Building.
Literature cited 1: Akaike, H., 1974.Anew look at the statistical model identification. IEEE Trans. Autom.Control 19, 716-723. Alperovich, G., Deutsch, J., 1992. Population-density gradients and urbanization measurement. Urban Stud.29, 1323-1328.
Literature cited 2: Anderson, J.R., 1976. Aland use and land cover classification system for use with remote sensor data. US Govrnment Printing Office. Arnfield, A.J., 2003. Two decades of urban climate research: a review of turbulence, exchanges of energy and water, and the urban heat island.Int.J.Climatol.23, 1-26.

ID: 60993
Title: Automated metric characterization of urban structure using building decomposition from very high resolution imagery.
Author: Johannes Heinzel, Thomas Kemper.
Editor: F.D.van der Meer
Year: 2015
Publisher: Elsevier B.V.
Source: Centre for Ecological Sciences
Reference: APPLIED EARTH OBSERVATION AND GEOINFORMATION. Vol. 35 (B) 151-160 (2015).
Subject: APPLIED EARTH OBSERVATION AND GEOINFORMATION.
Keywords: Urban characterization, Built-up metrics Mathematical morphology, Very high resolution imagery, South Africa.
Abstract: Classification approaches for urban areas are mostly of qualitative and semantic nature. They produce interpreted classes similar to those from land cover and land use classifications. As a complement to those classes, quantitative measures directly derived from the image could lead to a metric characterization of the urban area. While these metrics lack of qualitative interpretation they are able to provide objective measure of the urban structures. Such quantitative measures are especially important in rapidly growing cities since, beside of the growth in area, they can provide structural information for specific areas and detect changes. Rustenburg, which serves as test area for the present study, is amongst the fastest growing cities in South Africa. It reveals a heterogeneous face of housing and building structures reflecting social and/or economic differences often linked to the spatial distribution of industrial and local mining sites. Up to date coverage with aerial photographs s provided by aerial surveys in regular intervals. Also recent satellite systems provide imagery with suitable resolution. Using such set of very high resolution images a fully automated algorithm has been developed which outputs metric classes by systematically combining important measures of building structure. The measurements are gained by decomposition of buildings directly from the imagery and by using methods from mathematical morphology. The decomposed building objects serve as basis for the computation of grid statistics. Finally a systematic combination of the single features leads to combined metrical classes.
Location: T E 15 New Biology Building.
Literature cited 1: Baraldi, A., Parmiggiani, F., 1990. Urban area classification by multispectral SPOT images. IEEE Trans. Geosci. Remote Sens.28, 674-680. Barnsley, M., Barr, S., 1996. Inferring urban land use from satellite sensor images using kernel-based spatial reclassification. Photogra.Eng.Remote Sens.62, 949-958.
Literature cited 2: Baud, I., Kuffer, M., Pfeffer, K., R., Karuppannan, S., 2010. Understanding heterogeneity in metropolitan India: the added value of remote sensing data for analyzing sub-standard residential areas. Int.J.Appl.Earth Observ.Geoinform.12, 359-374. Dell ' Acqua, F., Gamba, P., Lisini, G., 2003. Improvements to urban area characterization using multitemporal and multiangle SAR images.IEEE Trans.Geosci.Remote Sens.41, 1996-2004.

ID: 60992
Title: Geospatial assessment of erosional behaviour of a watershed in Angara block of Ranchi district, Jharkhand.
Author: Prasanta Kumar Bez and Akhouri Pramod Krishna
Editor: Dr.O.P. Chaturvedi
Year: 2014
Publisher: Indian Association of Soil & Water Conservationists
Source: Centre for Ecological Sciences
Reference: Indian journal of soil conservation Vol.42 (1). 107-113 (2014)
Subject: Soil Conservation
Keywords: Land Use/Land Cover Change (LULC), Remote sensing, Soil erosion, Watershed management.
Abstract: Soil erosion assessment was carried out in Dumar Kocha water shed of Ranchi district in Jharkhand state to understand the erosional behavior geospatially using Universal Soil Loss Equation (USLE). It was observed that average annual soil erosion for the watershed ranged from slight (<5 t ha-1 yr-1) to very severe (>80 t ha-1yr-1). This was further observed that the watershed areas covered by slight, moderate, high, very high, severe and very severe erosion potential zones were 67, 12.42, 10.98, 3.82, 5.14 and 1.21 % of the watershed, respectively. Spatial analysis using remote sensing and geographic information system (GIS) indicated high soil erosion rates in central portion of the watershed, which could be attributed to the severe terrain modifications, inappropriate agricultural practices and forest degradations. Since the areas which are sensitive to soil loss could be demarcated, outcome of the study has the potential to serve as a valuable resource for better land management. Geoinformatics based analysis of erosion behavior in this region at watershed level can help manage natural resources better. Results thus obtained should further help in assessment of appropriate indicators to work upon for conserving water and soil through watershed management and land use planning.
Location: T E 15 New Biology Building.
Literature cited 1: Chatterjee, S., Krishna, A.P.and Sharma, A.P. 2013. Geospatial assessment of soil erosion vulnerability at watershed level in some sections of the Upper Subarnarekha river basin, Jharkhand, India, Environ. Earth Sci., (online first: DOI: 10.1007/s 12665-013-2439-3). Dabral, P.P., Baithuri, N. and Pandey, A. 2008. Soil erosion assessment in a hilly catchment of north eastern India using USLE, GIS and remote sensing, Water Resour.Manage, 22: 1783-1798.
Literature cited 2: Gonzalez, A.M.R. 2004. Soil erosion calculation using remote sensing and GIS in Rio Grande de Arecibo Watershed, Puerto Rico, Department of Civil Engineering, University of Purto Rico at Mayaguez, http/gers.uprm.edu/geo/6225/pdfs/a_rojas.pdf(accessed June 2012). Joshi, V. and Krishna, A.P. 2000. Control measures for checking soil erosion, landslides and debris flow in Hindu-Kush Himalayan belt of PR of China, Ind. J. Soil Cons., 28: 1-6.

ID: 60991
Title: Impact analysis of participatory integrated watershed management programme in semi-arid region of Tamil Nadu, India.
Author: A.K.Sikka, M.Madhu, Subhash Chand, D.V. Singh, V.Selvi, P.Sundarambal, K. Jeevarathnam and M.Murgaih.
Editor: Dr.O.P. Chaturvedi
Year: 2014
Publisher: Indian Association of Soil & Water Conservationists
Source: Centre for Ecological Sciences
Reference: Indian journal of soil conservation Vol.42 (1). 98-106 (2014)
Subject: Soil Conservation
Keywords: Bio-physical impacts, Impact assessment, Participatory, Socio-economics impacts, Watershed management.
Abstract: Watershed management aimed to containing the deterioration of natural resources for maintaining the ecological balance and sustainable economic development. This paper presents the impacts of the participatory watershed development. The runoff varied from 27 mm to 43.2 mm, which was 4.5 to 7.2 % of the total rainfall. A total of 266 ha-cm additional surface water storage capacity was created through water resource development and increased wells recuperation rate by 10 to 15 %. Influence zone of percolation ponds showed increased irrigated area from 13.7 ha to 25.1 ha (84 %) with crop diversification. The average survival percent of fruit plants varied between 51 and 98.66 %.The yield of dry land crops was increase by 11 to 14 %. Cultivated Land Utilization Index (CLUI) increased by 0.13 (47 days) in dry land and by 0.04 (15 days) in irrigated condition. Overall Crop productivity Index (CPI) increased from 0.547 to 0.613 with an increase of 12 % in productivity level of crops. Overall Crop Fertilization Index (CFI) increased from 0.69 to 0.75, registering an increase of 8 % in rate of nutrients application. The overall Watershed Productivity (WP) increased 17.2 % of horse gram. The overall People ' s Participation Index (PPI) was 62 % indicating that the stake holders ' overall participation was high. A total of 10105 mandays employment was generated due to various interventions. Average milk production has increased by 59 liters per family per year and consumption increased from 0.91 to 1.03 liters family-1 day-1.
Location: T E 15 New Biology Building.
Literature cited 1: Chuang, F.T. 1973.An Analysis of Change of Taiwan ' s cultivated land utilization for recent years. Rural Economic Division JCRR Rep. 21, Taipei, Taiwan. Despande, R.S. and Ratna Reddy, V. 1991. Differential impact of watershed based technology: Some analytical issues. Indian J. Agri.Econ; 46 (3): 261-269.
Literature cited 2: Fan, S. and Hazell, P. 2000. Should developing countries invest more in less favoured areas? An empirical analysis of rural India.Economic and political weekly, 35 (17): 1455-1464. Gittinger, J.P. 2004. Economic Analysis of Agricultural projects. Economic Development Institute. The World Bank. http/www.stanford.ed/goup/FRI/Indonesia/document/gittinger/output/title.htm.21 1984-2004.

ID: 60990
Title: Biomass production, carbon sequestration and water transmission properties as influenced by densified plantations raised on old river bed lands in the north west Himalayas.
Author: A. Raizada, B.N.Ghosh, J.Jayaprakash and Charan Singh.
Editor: Dr.O.P. Chaturvedi
Year: 2014
Publisher: Indian Association of Soil & Water Conservationists
Source: Centre for Ecological Sciences
Reference: Indian journal of soil conservation Vol.42 (1). 85-97 (2014)
Subject: Soil Conservation
Keywords: Degraded lands, Fire wood, Plantation, Short rotation forestry, Soil properties, Thinning.
Abstract: Old river bed lands in the North West Himalayas have generally been utilized for the production of fooder and firewood but its quantitative biomass production and resource (carbon and water) conservation potential have not been worked out. Plantations of three species-Grewia otiva Drumm, Bauhinia variegate L. and Dalbergia sisso Roxb.were raised during 1996, at 2x2 m (close), 3x2 m (medium) and4x2 m (wide) spacings and were thinned mechanically at the age of 7, 12 and 15 years. The performance 0f D. sisso was the best with trees attaining an average height of 9.87 m and 10.3 m in the 7th year and 12th year, respectively. G.optiva trees attained an average height of 5.67 m and 6.20 m at the same age. Foliage (as fooder) availability from annual prunings in G.optiva declined from the 11th year and woody biomass from 8th year. More woody biomass was obtained at medium spacing and that of foliage at close spacing. First thinning in the 7th year yielded 54.70, 20.45 and 13.65 t ha-1 of woody biomass at close spacing in D.sissoo, Goptiva and B.variegata, respectively, followed by production from medium and wide spacing. During the 2nd thinning at the 12th year, maximum woody biomass (100.50 t ha-1) was obtained from D.sissoo at medium spacing followed by 53.43 t ha-1 from G.optiva at wide spacing and 34.94 t ha-1 from B.variegata medium spacing. Annual rate of increase of SOC in the 0-45 cm soil depth ranged from 502 to 1410 kg C ha-1. The humification rate was determined to be 0.195. Carbon sequestration rate varied from 1.32 to 0.55 t ha-1 yr-1 and followed the trend of D.sissoo <B.variegata<G.optiva.
Location: T E 15 New Biology Building.
Literature cited 1: Anonymous, 1999.Annual Report of the forest Survey of India, Dehradun. Anonymous, 2000.Agricultural Statistics at a Glance. Directorate of Economics and Statistics, Dept, of Agric.and Co-operation, Min.of Agriculture, Govt. of India, New Delhi.
Literature cited 2: Arora, Y.K. and Vishwanathan, M.K. 1995. Alternate land use system for marginal and boulder riverbed lands. In: G.Sastry, V.N. Sharda, G.P. Juyal and J.S. Samra (Eds). Torrent Menace. Challenges and Opportunities. C.S.W.C.R.T.I., Dehradun.pp. 159-163. Aulakh, M.S., Khera, T.S., Doran, J.W. and Bronson, K.F. 2001. Managing Crop Residue with Green Manure, Urea, and Tillage in a Rice-Wheat Rotation.Soil.Sci.Soc.Am.J. 65: 820-827.

ID: 60989
Title: Evaluation of bamboo based conservation measures for rehabilitation of degraded Yamuna ravines.
Author: A.K. Singh, S. Kala, S.K. Dubey, B. Krishna Rao, M.L. Gaur, K.P. Mohapatra and B. Prasad.
Editor: Dr.O.P. Chaturvedi
Year: 2014
Publisher: Indian Association of Soil & Water Conservationists
Source: Centre for Ecological Sciences
Reference: Indian journal of soil conservation Vol.42 (1). 80-84 (2014)
Subject: Soil Conservation
Keywords: Bamboo, Gully bed, Livelihood security, Ravine, Resource, Runoff, Slope stabilization.
Abstract: This vast of tract of existing ravine lands in northwestern part of India poses potential threat to nearby productive lands due to over exploitation and mismanagement. There is an urgent need to manage these problematic lands and protect both the arable and non-arable land from further degradation. Keeping this in view, an experiment was undertaken to evaluate bamboo (Dendrocalamus strictus) based resource conservation techniques in the Yamuna ravines, at Central Soil and Water Conservation Research and Training Institute, Research Centre at Agra (U.P). Four small micro watersheds were selected and four treatments viz., plantation of rows of bamboo in the upstream and downstream side of small earthen gully plugs (T1), plantation of bamboo in staggered manner in the gully bed with trenches (T2), two rows of bamboo planted in staggered manner as vegetative barrier (T3) and control catchment having no intervention (T4) were imposed in 2009 and gauging structures were constructed in all four watersheds. Among the four treatments, T-2 recorded highest growth in terms of average culm height (126.20 cm), average culm diameter (7.56 mm) and crown size (72.86 cm) were recorded in T2 followed by T1 than others. The soil physical and chemical properties were also considerably influenced by bamboo plants under treatment imposed lands. The soils under bamboo improved in terms of decreased pH and enhanced soil organic carbon. No soil loss and run off were observed inT1 and T2 after imposition of treatments as compared to average runoff (6.04 and 35.83 mm) average soil loss (0.66 and 4.40 t ha-1) and average silt deposition 90.348 and 410 t ha-1 yr-1) recorded in T3 and control, respectively. In ravine lands, Bamboo acts as good soil binder owing to its dry hardy nature, peculiar dense clump formation and extensive interlocking fibrous root system, natural capacity to regenerate through its rhizomes which play important role in preventing erosion, water holding capacity and nutrient cycling under gully beds.
Location: T E 15 New Biology Building.
Literature cited 1: Anonymous, 2007. Technical bulletin, Central Soil and Water Conservation Research and Training Institute, Research Centre, Agra-6 (U.P). Bahadur Prakash, Satish Chandra and Gupta, D.K. 1980. Hydrological studies on experimental basins in the Himalayan region. The influence of man on the hydrological regime with special reference to representative and experimental basins, Symposium-IAHS-AISH Publ.No.130.
Literature cited 2: Behari Bipin, Agarwal, Rashmi, Singh, A.K. and Banerjee, S.K. 2000. Vegetation development in a degraded area under bamboo based agro-forestry system.Ind.For.126 (7): 710-720. Champion, H.G. and Seth, S.K. 1968. Revised survey of the forest types of India, Manager Publications. New Delhi.

ID: 60988
Title: Impact of varying soil moisture regimes on growth and soil nutrient availability in mango.
Author: S.R.Bhriguvanshi, Tarun Adak, Kailash Kumar, Achal Singh and Vinod Kumar Singh.
Editor: Dr.O.P. Chaturvedi
Year: 2014
Publisher: Indian Association of Soil & Water Conservationists
Source: Centre for Ecological Sciences
Reference: Indian journal of soil conservation Vol.42 (1). 68-73 (2014)
Subject: Soil Conservation
Keywords: Available soil moisture depletion levels, Dashehari mango, Nutrient availability, Tree growth.
Abstract: A field experiment was conducted at the Research Farm of Central Institute for Sub-tropical Horticulture, Lucknow during 1995-1999 to evaluate the effect of different soil moisture regimes on tree growth and soil nutrient dynamics in mango orchard. It was observed that regulated irrigation under available soil moisture (ASM) depletion levels influenced tree growth and nutrient availability. The annual increase in stem girth, tree height and canopy spread of trees under 45 % ASM level was found to be superior to control. Available N, P, K and DTPA-45 % extractable micronutrients Zn, Cu, Mn and Fe registered the maximum values in 45 % ASM levels followed by 60 % and 30 % ASM depletion levels. Soils nutrients were positively and significantly correlated to one another. Available nutrients were in higher range in upper 50 cm layer as compared to deeper layers.
Location: T E 15 New Biology Building.
Literature cited 1: Adak, T., Kumar, K., Singh, V.K., Singh, Vinod Kumar and Singh, A.K. 2012.Effect of different soil moisture regimes on soil moisture dynamics, yield and quality in mango. In: Procedings of 3rd International Agronomy Congress on ?Agriculture Diversification, Climate Change Management and Livelihoods?, held during November 26-30, 2012, at IARI, New Delhi, India, pp. 1416-1418. Al-Yahyai, R., Davies, F.S., Schaffer, B.and Crane, J. 2005. Effect of soil water depletion on growth, yield and fruit quality of Carambola in gravelly loam soil.Proc.Flo.State Hort.Soc, 118: 237-214.
Literature cited 2: Barber, S.A.1995 .Soil nutrient bioavailability: A mechanistic approach. John Wiley & Sons, New York. Bhriguvanshi, S.R., Adak, T., Kumar, K., Singh, V.K., Singh, A. and Singh, V.K. 2012. Impact of fertigation regimes on yield and water use efficiency of Mango (Mangifera indica L.) under subtropical condition.Ind.J.Soil. Cons., 40 (3): 252-256.

ID: 60987
Title: Erosion risk mapping in Peruguda micro-watershed of semi-arid tropics of India using remote sensing and GIS
Author: S.K. Gangopadhyay, G.P.Obi Reddy and Dipak Sarkar.
Editor: Dr.O.P. Chaturvedi
Year: 2014
Publisher: Indian Association of Soil & Water Conservationists
Source: Centre for Ecological Sciences
Reference: Indian journal of soil conservation Vol.42 (1). 29-38 (2014)
Subject: Soil Conservation
Keywords: GIS, Peruguda micro-watershed, Semi-arid tropics, Soils, Soil erosion.
Abstract: Soils of Peruguda micro-watershed, developed on geologically complex terrain under semi-arid tropical climate of Ranga Reddy district, Andhra Pradesh, India were studied for their morphological, physical and chemical characteristics with a view to map the erosion risk zones using Remote Sensing and Geographic information System (GIS). Soils developed under seven physiographic units viz., mesa top, mesa shoulder, mesa side slope, mesa foot slope, rocky ridge, undulating plain and narrow to broad valley were mapped and 23 soil mapping units have been identified. The soils vary in depth, drainage, surface texture, pH and organic carbon. The study of land use/land cover indicates that about 44.2 % area is under rainfed agriculture. Based on the image characteristics, soil, and site characteristics and land use/land cover, four erosion classes have been identified in the micro-watershed. The soils of side slopes of undulating plain, mesa shoulder, dissected valley fill as evidenced by the dark to light blue, yellow, white mixed tone covering 33.59 % area of the micro-watershed is under the threat of severe erosion hazard while soil of mesa side slope, rocky ridge and narrow to broad valley, covering an area of 5.01 %, is under very severe erosion hazard as evidenced by the dark blue, yellow and white mixed tone in the satellite imagery. The study indicates an amount of 894.2 to 17812.4 tonnes of soil loss yr-1 from the micro-watershed. The mapping of erosion risk zones using remote sensing and GIS in the micro-watershed helped to identify high erosion risk zones, which needs more attention towards the protection and conservation of natural resources through suitable soil and water conservation measures.
Location: T E 15 New Biology Building.
Literature cited 1: AIS & LUS, 1970.Soil Survey Manual. All India Soil Survey Organization, IARI, New Delhi. Bhumbla, D.R and Khare, A. 1984. Estimates of Wastelands in India. Society for promotion of Wateland Development, New Delhi, pp. 1-16.
Literature cited 2: Black, C.A. (Ed). 1965. Methods of Soil Analysis.Am.Soc.Agron., Madison, Wisconsin. Chaudhary, R.S. and Sharma, P.D. 1998. Erosion hazard assessment and treatment prioritization for Giri River catchment.Ind.J.Soil Cons., 26 (1): 6-11.

ID: 60986
Title: Estimation of curve numbers for different soil conservation measures in lateristic soil of south Konkan region.
Author: K.D. Gharde, D.M.Mahale and S.S.Idate.
Editor: Dr.O.P. Chaturvedi
Year: 2014
Publisher: Indian Association of Soil & Water Conservationists
Source: Centre for Ecological Sciences
Reference: Indian journal of soil conservation Vol.42 (1). 10-16 (2014)
Subject: Soil Conservation
Keywords: Antecedent moisture condition, Curve number, Rainfall, Runoff, Soil conservation measures, South Konkan region
Abstract: Seven Years (1992-1998) rainfall data of Agricultural Research Station, Mulde, District Sindhudurge in South Konkan of Maharashtra State was analyzed for every storm to determine storm wise AMC condition. The entire events fall in each AMC I, II, III were grouped in small, medium and large class. The potential retention (S), value for different storm group with different AMC was then computed by using lognormal distribution for runoff and rainfall pair data. This potential retention value was used for the computation of CN for given condition of the watershed. The estimated average CNs for different conservation measures for AMC I, II, III are 77.93, 81.31 and 84.57, respectively. The VGB produces more runoff followed by NCM, ST and RT. The standard error was also higher in case of NCM (36.28 %), which was then followed by VGB (30.64 %), PT (20.65%) and other micro watershed (1.68 to 19 %). The mean percent runoff factors observed were 45. 70, 23.99, 24.45, 23.55, 26.32 and 50.27 for NCM, IBT, ST, PT, RT and VGB, respectively. The intermittent bench terracing (IBT) and platform terraces (PT) were found more effective in controlling the runoff from study area was found non- significant at 5 % level of confidence. Hence, Computed CNs can be used for estimation of runoff from an ungauged watershed.
Location: T E 15 New Biology Building.
Literature cited 1: Amutha, R. and Porchelvan, P. 2009. Estimation of runoff in Malattar Sub-watershed using SCS-CN method. J.Indian Soc.Remote Sens., 37: 291-304. Andrews, R.G.1954. Use of relative infiltration indices in computing runoff in Rainfall-Runoff Relationship. Edited byV.P. Singh. Water Resource.Pub., Littleton, Colorado.
Literature cited 2: Soil Conservation Service. 1957. National Engineering Handbook Section 4. US soil conservation services, USDA, Washington, D.C.

ID: 60985
Title: Statistical assessment of soil-water characteristic models
Author: Gopal Kumar, D.R. Sena, K.N.Tiwari, R.S. Kurothe and V.N. Sharda.
Editor: Dr.O.P. Chaturvedi
Year: 2014
Publisher: Indian Association of Soil & Water Conservationists
Source: Centre for Ecological Sciences
Reference: Indian journal of soil conservation Vol.42 (1). 1-9 (2014)
Subject: Soil Conservation
Keywords: Akaike information criterion (AIC), RETC (Retention curve) Soil water retention curve (SWRC)
Abstract: A statistical assessment of curve fitting to soil water retention curve has been carried out for two different types of soils viz., Kharagpur sandy loam soil (four layers) and Black clay soil of Akola. The closed for m equation describing soil water retention function of van Genuchten [VG (m, n) and VG (n)] and Brooks-Corey (BC) was fitted using RETC software and detailed statistical analysis was carried out to compare their performance. Results revealed that all the three models were found to perform reasonably well. The statistical analysis performed to discriminate the models such as R2, AIC, t-value and RSS had showed a little difference among the models used for comparison. However, considering the relative ease at which the computation of hydraulic properties can be performed and the practical situation that can be accommodated, VG (n) is the best model among all the three models. This represents a simple closed form equation that can be derived to express the hydraulic conductivity function as compared to VG (m, n).
Location: T E 15 New Biology Building.
Literature cited 1: Brooks, R.H. and Corey, A.T. 1966. Properties of porous media affecting fluid flow.J.Irrig.Drain.Eng., ASCE, 92: 61-88. Gharde, K.D., Nagdeve, M.B., Bhange, H.N. and Mahle, D.M. 2007. Modeling one dimensional water flow in unsaturated zone of watershed.Ind.J.Soil.Cons., 35 (2): 89-96.
Literature cited 2: Marquardt, D.W. 1963. An algorithm for least-squares estimation of nonlinear parameters, J.Soc.Ind.Appl.Math., 11: 431-441. Mualem, Y. 1984. A modified dependent domain theory of hysteresis. Soil Sci., 137: 283-291.

ID: 60984
Title: Mapping Research on Poplar (Populus spp) in ' Forest Science Database '
Author: Arundahati Kaushik, Ritu Negi, Santan Barthwal and Y.P. Singh.
Editor: Shailendra Kaushik, Y.P.Singh, Dinesh Kumar, Manisha Thapliyal, Santan Barthwal
Year: 2012
Publisher: ENVIS Centre on Forestry
Source: Centre for Ecological Sciences
Reference: ENVIS Forestry Bulletin Vol. 12 (1) 151-156 (2012)
Subject: Forestry Bulletin
Keywords: Mapping, Research, Poplar, Forest, Database.
Abstract: The Populus genus consists of more than thirty species distributed across the cold temperate region in northern hemisphere. According to the Foreword of 23rd Session of International Poplar Commission, Beijing China. Poplars and willows contribute significantly to people, their lives, and livelihoods through the provision of wood products (industrial roundwood poles, pulp and paper, reconstituted boards, plywood, veneer, sawn timber, packing crates, pallets, furniture, etc), non-wood products (fodder, medicines, etc) and environmental and social services (shelter, shade and protection of soil, water, crops, livestock and dwellings). Poplars and willows play an important role in phyto-remediation of severely degraded sites, rehabilitation of fragile ecosystems, landscape restoration, sequestration of carbon and, increasingly, as a viable source of bioenergy.
Location: T E 15 New Biology Building.
Literature cited 1: Arrebola-Pascual, I; Garcia-Lopez, J.A. 2002. Presence of pharmacoepidemiology in three bibliographic databases: Medline, IPA and SCI. Pharmacoepidemiol Drug Safety, 11 (6): 499-502 Ball, J. Carle, J. and Del Lungo, A. 2005. Contribution of poplars and willows to sustainable forestry and rural development. Unasylva, 56 (221): 3-11.
Literature cited 2: Gao Jie. 2010. Bibliographic analysis of core journals on poplar research in China. Journal of Anhui Agricultural Sciences [http://en.cnki.com.cn/Article_en/CJFDTOTAL-AHNY201036203.htm]. He Ping; Luo Youqing; Lu WenRu 2009. A bibliometric analysis on global literatures of invasive alien species of forest. Journal of Beijing Forestry University, 31 (6): 77-85.

ID: 60983
Title: Status of Anatomy and Physical Properties of Wood in Poplars.
Author: P.K. Pande
Editor: Shailendra Kaushik, Y.P.Singh, Dinesh Kumar, Manisha Thapliyal, Santan Barthwal
Year: 2012
Publisher: ENVIS Centre on Forestry
Source: Centre for Ecological Sciences
Reference: ENVIS Forestry Bulletin Vol. 12 (1) 132-150 (2012)
Subject: Forestry Bulletin
Keywords: Anatomy, Physical, Properties, wood, Poplars.
Abstract: Poplars are among the world ' s fastest growing industrial wood, which is grown in pure or mixed plantations as well as in association with agricultural crops. Poplars are also widely cultivated on the field boundaries, roads, canals, riverbanks as multipurpose tree species. Their wood is in much demand for pulp, plywood, matchwood, packing cases and light constructional timber. In India, many species of Populus were introduced among which P.deltoides did very well and has now occupied large chunk of forests, farmland, road and canal-sides in Haryana, Jammu and Kashmir, North Bengal, Punjab, Uttarakhand and Uttar Pradesh.
Location: T E 15 New Biology Building.
Literature cited 1: Ani. S. and Lim, S.C. 1993. Variation in specific gravity of five year old Acacia mangium from the Batu Arang plantation, Selangor, Malaysia. Journal of Tropical Forest Science, 6 (2): 203-206. Aziz, M. and Pande, P.K.2008. Intra-ramet and inter-clonal variations in the dimensions of wood elements and specific gravity in male and female clones of Populus deltoides Bart. Ex.Marsh.In:
Literature cited 2: Uttarakhand State Science Technology Congress, 3rd, Rookee, 10-11 November 2008. Proceedings.p. 92. Aziz, M. and Pande, P.K. 2010.Intra ramet variations of fiber dimensions in F1female of Populus deltoides Bartr. Ex. Marsh. In: Uttarakhand State Science and Technology Congress, 5th, Dehradun, 10-12 November 2010. Proceedings. P. 182.