ID: 57337
Title: Floral diversity and vegetation ecology of the Pathiramanal island in Vembanad lake, Kerala
Author: P Balasubramanian and P A Azeez
Editor: Dr P P Bhojvaid
Year: 2012
Publisher: The Indian Forester, Vol 138, No 9, September 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Forestry
Keywords: Flora, vegetation, mangrove, Pathiramanal
Abstract: This paper highlights the floristic richness and vegetation association in the Pathiramanal island, an important mangrove location in Kerala, South-western coast. Ceriops tagal, Excoecaria agallocha and Cerbera odollam constituted the dominant mangroves in Pathiramanal Island. The need for conservation of this area is emphasized.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57336
Title: Ethno botanical edible plant biodiversity of Lepcha tribes
Author: Ashok Kumar, R K Avasthe, Gopal Shukla and Y Pradhan
Editor: Dr P P Bhojvaid
Year: 2012
Publisher: The Indian Forester, Vol 138, No 9, September 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Forestry
Keywords: Edible, Lepchas, plant diversity, Sikkim Himalaya
Abstract: Dzongu area of North Sikkim is one of the most biologically diverse habitats reserved for the Lepcha tribe in Sikkim. Surveys were conducted among the community during January to December 2009-10 to document the edible plants wealth of the area. Edible resources were categorized into four types on the basis of their uses. The paper highlights the edible resources commonly used by these tribes for life saving purposes in a very remote part of the country. Among vegetables, spices, fruits and underutilized plants, 38 plants belonging to 11 families under 24 genera are used as vegetables, nine plants from five families and seven genera are used as spices, 10 plants from seven families and nine genera are used as fruits and 19 plants from 17 families and 18 genera are underutilized for different purposes.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57335
Title: Current status of selected endemic species of Kalakad Mundanthurai Tiger Reserve (KMTR), Tamil Nadu
Author: D Venkatesh, C Badrasamy, V Chelladurai, R Gopalan, B Saranya and G Arunkumar
Editor: Dr P P Bhojvaid
Year: 2012
Publisher: The Indian Forester, Vol 138, No 9, September 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Forestry
Keywords: Reassessment, strict endemic species, KMTR
Abstract: The reassessment of the status of four endemic species viz. Eugenia singampattiana, Elaeocarpus venustus, Garcinia tranvancorica and Syzygium gambleanum from Kalakkad Mundanthurai Tiger Reserve (KMTR), Tamil Nadu was conducted based on the IUCN criteria.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57334
Title: An assessment of diversity of gymnosperms in Meghalaya state, India
Author: R Gogoi and Hussain Ahmed Barbhuiya
Editor: Dr P P Bhojvaid
Year: 2012
Publisher: The Indian Forester, Vol 138, No 9, September 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Forestry
Keywords: Gymnosperms, Meghalaya, Assam
Abstract: During the present study a total of 29 species belonging to 18 genera from 10 families were recorded, out of which the family Pinaceae is foiund to be at the largest with 7 species and 3 genera growing in the state. Out of 29 species 9 species are indigenous to the state and rest are introduced ones. All the indigeneous species except Pinus kesiya showed depleting population in the wild and wanted its immediated and proper conservation.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57333
Title: Economic and ecological impact of different joint forest management models in Orissa
Author: Minaketan Behera and B K P Sinha
Editor: Dr P P Bhojvaid
Year: 2012
Publisher: The Indian Forester, Vol 138, No 9, September 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Forestry
Keywords: Forest benefits, Government of Orissa, JFM models, Stakeholders
Abstract: Joint Forest Management (JFM) was introduced into Orissa on 1st June 1988 by JFM resolution. It involves sharing forest benefits and forest management responsibility between the state and the community, and it currently covers 1, 061, 705 ha. Government of Orissa ' s efforts for encouragement of participatory forest management through people ' s participation by different JFM models have positive impacts on forest management and livelihood of forest dwellers but still there is need of continuous effort to recognize Peoples ' institutions (PIs) with an optimistic approach of development practitioners for JFM programme to make it more people-centric. This study suggests that empowerment of the user group, peoples ' institutuions, greater devolution of power, functionaries and funds, active participation of the stakeholders, due weightage to entitlements of the community, etc. are likely to benefit the forest-dependent poors most in future and sustainable management of forest.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57332
Title: Floristic composition of early recovery vegetation of traditional shifting cultivated areas of Kurung-Kumey district of Arunachal Pradesh
Author: S S Dash
Editor: Dr P P Bhojvaid
Year: 2012
Publisher: The Indian Forester, Vol 138, No 9, September 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Forestry
Keywords: Floristic composition, early recovery vegetation, shifting cultivation, Arunachal Pradesh
Abstract: Shifting cultivation is a major form of agricultural practice in kurungkumey district of Arunachal Pradesh, India. Conventional agricultural practices are virtualy absent in the district as terrain in mountainous. The present paper deals with the floristic composition of the early recovering plants in four shifting cultivated areas of Kurung-kumey district. Four demarcated plots each in Sangram, Palin, Nyapin and Sarlee circle was considered for the floristic inventory. Three different community functional groups viz. tree, shrub and ground vegetation (herb) were considered. The study resulted in documentation of total 216 species belonging 64 families and 58 genera flowering plants in the secondary succession area. The number of species encountered in each plot was 155, 126, 148 and 150 respectively. Results indicated that only a few families viz, Poaceae, Asteraceae and Rubiaceae were dominated in the early recovery vegetation of shifting cultivation. Also the occurrences of deciduous species are in high percentage in the early recovery community as compared to the natural secondary forests of the region.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57331
Title: Quantification of Aniline iwth bleaching powder via indophenol reaction and its residual determination in lubricating oils
Author: Anjum Ansari, Smita Joshi and Sulbha Amlathe
Editor: Prof V Subramanian
Year: 2012
Publisher: Capital Publishing Company, Vol 9, No 4, October 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Water, Environment and Pollution
Keywords: Spectrophotometer, aniline, phenol, bleaching powder, indophenol dye
Abstract: A rapid and one step condensation method for trace level determination of aniline is developed in environmental and real sample i.e., lubricating oil. The method involves the use of oxidative coupling reaction for aniline and phenol using bleaching powder as an oxidizing agent in alkaline medium. The dye has a maximum absorption at 640 nm. Beer ' s law is obeyed in the range of 0.125 to 0.75 ?g/ml and its detection limit is 0.025?g. Molar Absorptivity and Sandell ' s Sensivity were found to be 4.4 x 103 litres/mol/cm (+ 100) and 0.021 ?g cm-2,respectively. Standard Deviation and Relative Standard Deviation were found to be + 0.0074 and 3.12% respectively, for 5?g of aniline in 10 ml of final volume. All important parameters have been optimized for complete colour reaction and applied for the analysis of aniline in environmental samples i.e water and air. It is also applied for the residual aniline determination in lubricating oils.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57330
Title: Assessment of significant sources influencing the variation of water quality of the river Damodhar through factor analysis
Author: U S Banerjee and S Gupta
Editor: Prof V Subramanian
Year: 2012
Publisher: Capital Publishing Company, Vol 9, No 4, October 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Water, Environment and Pollution
Keywords: Water quality, heavy metals, factor analysis, cluster analysis, Damodar river
Abstract: In the present study, a large environmental data matrix, obtained during one year monitoring programme of 18 parameters at 16 different sites, subjected to factor analysis (FA) to study the geochemical status and to discriminate the different pollution sources of the river Damodar. Various physicochemical parameters like pH, electrical conductivity (EC), total dissoved soild (TDS), ammonia (NH4+), Chloride (Cl-), nitrate (NO3-), sulphate (SO42-), phosphate (PO43-), iron (Fe), cadmium (Cd), manganese (Mn) and lead (Pb) were determined following the standard methods of APHA (1998). The average concentrations (?g/l) of the heavy metals in the water are Fe (598.4) > Pb(2.813) >Mn (1.369)>Cd(0.538). Factor analysis reveals four factors like industrial effluents, geogenic sources, agricultural activities and natural factors controlling the variability in waters of the river Damodar. The study of cluster analysis classified monitoring sites (16) in three clusters i.e., relatively less polluted, moderately polluted and highly polluted area. These results indicate that heavy metal pollution and toxicity might pose serious risks to the health of communities using surface waters for domestic, commercial and socio-cultural purposes. It is, therefore, recommended that more strict the methods of waste effluent mangaement should be adopted to reduced further inputs into the study area.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57329
Title: Appraisal of stability indices for forecasting severe thunderstorms over Kolkata using weighted tree-graph analysis
Author: Sutapa Chaudhuri and Anirban Middey
Editor: Prof V Subramanian
Year: 2012
Publisher: Capital Publishing Company, Vol 9, No 4, October 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Water, Environment and Pollution
Keywords: Tree-graph, severe thunderstrom, stability index, probability of detection, false alarm rate, sub-graph matching
Abstract: In the present study the stability indices that are relevant and useful for convective development are taken to assess the significance in forecasting severe thunderstorms over Kolkata (22034 ' N, 88022 ' E). A tree-graph is constructed using the stability indices and the record of severe thunderstorm as vertices. Weights of the edges of different indices are attributed according to two forecast skills. Probability of Detection (POD) and False Alarm Rate (FAR). Two tree-graphs are thus constructed. The most significant and relevant stability indices are obtained using the sub-graph matching analysis. The results reveal that among all the stability indices the lifted index (LI) and the convective inhibition energy (CIN) with the estimated ranges are the most significant stability indices for forecasting severe thunderstorm over Kolkata whereas dew point temperature (Td), convective available potential energy (CAPE) and bulk Richardson number (BRN) are important for indicating the convective development over the region but the occurrence of severe thunderstorms are not assured by these three indices with the estimated ranges.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57328
Title: Ecological assessment for water quality of Bhavanapadu (Mangrove) swamps of North coastal Andhra Pradesh, East Coast of India
Author: G V Krishna Mohan, K Kameswara Rao and P V V Prasada Rao
Editor: Prof V Subramanian
Year: 2012
Publisher: Capital Publishing Company, Vol 9, No 4, October 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Water, Environment and Pollution
Keywords: Water quality, heavy metals (water, sediment), estuary, mangrove, India, geochemistry, stratification, coastal area, pollution, surface sediment
Abstract: This paper examined nutrient dissolved metal concentration in Bhavanapadu mangrove ecosystem at North Coastal Andhra Pradesh in the east coast of India-the area studied. Surface water samples were collected from the different regions of mangrove-creek comples during the post-monsoon season. There was distinct variation in chemical constituents of water among the creek, mangrove and bay region. Physicochemical parameters like pH, EC and TDS and nutrients like NO3 and PO4 varied significantly among three sectors. The cations like K+, Ca2+ and NH4 and anions like SO42-, HCO3- and SiO2 didn ' t showed any significant variation. There is high concentration of dissolved metal in this mangrove system. The above fact will reveal that mangrove is facing severe threat due to industrial pollution. The metals, Cu, Zn and Co showed higher affinity, while Pb and Cr also result in strong coupling with each other.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57327
Title: Time series analysis model for particulate matter of air pollution data in Dhaka city
Author: Md Arafat Rahman and M Amir Hossain
Editor: Prof V Subramanian
Year: 2012
Publisher: Capital Publishing Company, Vol 9, No 4, October 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Water, Environment and Pollution
Keywords: Time series analysis, particulate matter, air pollution, forecasting, ARIMA model
Abstract: Time series anaysis and forecasting has become an important tool in many applications in the field of air pollution and environmental management. ARIMA (Autoregressive Integrated Moving Average) models form an important part of the Box-Jenkins approach to time series data modelling. In this study Box-Jenkins method was used to construct ARIMA model for monthly particulate matter of air pollution data with a total of 108 readings from Dhaka meteorological station for the period 2002-2010. An attempt has been made to construct an ARIMA (0,0,2) (2,1,0)12 model in a systematic and scientific manner. Based on the fitted ARIMA model, monthly particulate matter of air pollution for further two years has been predicted. It will help to make better decision for controlling air pollution in Dhaka city.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57326
Title: Mitigation of Amaranth dye from aqueous solution using steam activated pigmented rice husk carbon as an adsorbent
Author: B Janveja and J Sharma
Editor: Prof V Subramanian
Year: 2012
Publisher: Capital Publishing Company, Vol 9, No 4, October 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Water, Environment and Pollution
Keywords: Steam activated pigmented rice husk carbon, Amaranth dye, adsorption, adsorbent, colour
Abstract: Dyes represent one of the problematic groups. Though commercial activated carbon is preferred sorbent for colour removal, its widespread use is restricted due to high cost. In the present work, the steam activated pigmented carbon prepared from rice husk (B.N.Oryza sativa) was investigated as an adsorbent to remove Amaranth dye from aqueous solutions. The adsorbent was investigated under variable system parameters, such as, initial concentration of the aqueous dye solution, agitation time, adsorbent amount and temperature. The results of the present study have indicated that an amount of 0.8 g SAPRHC per litre could remove 43.0% of the dye from an aqueous solution of 10 ppm with agitation time 300 minutes. The interactions were tested with respect to both pseudo first-order and second-order kinetics. The later was found to be more suitable. High value of qm indicates high capacity of adsorption and the value of the coefficient b indicates that the interaction of dye with SAPRHC i.e. (dye + SAPRHC = dye....SAPRHC complex) leads to the formation fo a complex, being shifted overwhelmingly towards adsorption. The results obtained indicate a potential use of SAPRHC for removing dyes like Amaranth dye from water.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57325
Title: Removal of Copper (II) ion from aqueous solution by adsorptio on iron oxide and Kaolin
Author: Tushar Kanti Sen
Editor: Prof V Subramanian
Year: 2012
Publisher: Capital Publishing Company, Vol 9, No 4, October 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Water, Environment and Pollution
Keywords: Metal ion adsorption, kinetics, isotherms
Abstract: The effect of various physicochemical parameters on kinetics and equilibrium adsorption of Cu(II) metal ion from its aqueous solution by iron oxide and kaolin have been investigated using batch adsorption experiment. The results show that the amount of adsorption of Cu(II) metal ion increases with initial metal ion concentration, contact time, solution pH but decreases with the amoutn of adsorbent The kinetic experimental results show that the adsorption of Cu(II) on oxide as well as on kaolin is a two-step process: a rapid adsorption of metal ions to the external surface is followed by possible slow intraparticle diffusion in the interior of the particles which has been confirmed by intra-particle diffusion model. Higher linear regression correlation coefficients (R2) among fitted pseudo-first-order, pseudo-second-order and intra-particle diffusion model suggest that adsorption of copper metal ion on iron oxide as well as on kaolin follow pseudo-second-order kinetics and various kinetic parameters have been calculated. Langmuir and Freundlich models are used to describe the adsorption of copper metal ion on iron oxide and kaolin within specified metal ion concentration range. The value of separation factor, RL from Langmuir equation and rate of biosorption, ' n ' from Freundlich model also gives an indication of favourable adsorption.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57324
Title: Investigation of some geochemical characteristics and the effect of long-term pumping on groundwater constituent levels of aquifers underlie communities of Eastern area of the blue Nile river of Sudan
Author: Abdel-Monem M Abdellah, Hago M Abdel-Magid and Nadia A Yahia
Editor: Prof V Subramanian
Year: 2012
Publisher: Capital Publishing Company, Vol 9, No 4, October 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Water, Environment and Pollution
Keywords: Groundwater, aquifer, productivity, Blue, Nile, Sudan
Abstract: Previous data of 209 construction routine chemical analyses (CRCA) of boreholes were used to investigate the distribution of aquifer ' s static water levels (SWLs), productivity (P) and groundwater type (GWT), beside the effect of long-term pumping on groundwater constituent levels. A total of 32 of these boreholes were reanalyzed by the current study (CS) to investigate the effect of long-term pumping on groundwater constituents ' levels. Result indicated that the low SWLs (0.0-2.5m) were found in the southern part of the study area nearby the Blue Nile River (BNR). High SWLs (50-87 m) were found in central of the northern part of the study area while moderate SWLs (25-50m) were found to dominate the rest of the study area. High P (50-115 m3/h) was found in a small area at the southern part close to the BNR while low P (<25 m3/h) was dominant in the northern part of the study area. Groundwater type has been dramatically shifted to HCO3- water-type while the other groundwater constituents levels were found to be fluctuated up-and-down, during pumping time, in a harmony type pattern governed by the so-called "natural physicochemical equilibrium in groundwater".
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None
ID: 57323
Title: Quality assessment of soils in Thiruvananthapuram district, South India using Nematodes as bio-indicators
Author: K S Lakshmy, D S Jaya and C Mohandas
Editor: Prof V Subramanian
Year: 2012
Publisher: Capital Publishing Company, Vol 9, No 4, October 2012
Source: Centre for Ecological Sciences
Reference: None
Subject: Asian Journal of Water, Environment and Pollution
Keywords: Bio-indicator, contaminants, soil, nematodes, heavy metals
Abstract: Nematodes represent a very abundant group of soil organisms in the food web and are important for soil quality. They are both taxonomically and functionally diverse, respond quickly to soil perturbation and have much potential as indicators of soil health. In the present study, the impact of contaminants on soil health has been addressed through the measurement of nematode abundance. Different categories of land use areas in the rural and urban sites of Thiruvananthapuram District receiving different types of contaminants were selected for this study after conducting a reconnaissance survey of the study area. Control areas which are in a benign environment were also identified in both rural and urban areas of Thiruvananthapuram District. Soil samples were collected from the selected stations in pre-monsoon, monsoon and post-monsoon seasons during the period April 2009 to January 2010 from the selected stations, and the physico-chemical characcteristics, heavy metal content and nematode abundance were determined. The results showed that the soils of market area having the highest amount of decaying matter were rich in nematode density. The reason for this may be due to the fact that saprophytic nematodes can flourish well in that environment. It was also noted that the nematodes were scare in the soils of gasoline station area contaminated with hazardous wastes and chemicals which will unfavourably affect the nematode population. The nematode aboundance in the soils of the study stations are in the order: market area>sewage disposal ara>agricultural area>benign environment >industrial area> road-side area> gasoline station area> coastal area. Nematodes were abundant in areas where the heavy metal concentrations were low, thus indicating a negative correlation.
Location: TE 15, Biologicalsciences Building, IISc
Literature cited 1: None
Literature cited 2: None