Journal of Wetlands Ecology最新文献_第4页

Influence of Monsoon on Macrobenthic Assemblage in Outer Channel Area of Chilika Lagoon, East Coast of India 季风对印度东海岸奇里卡泻湖外水道区大型底栖生物群落的影响

Journal of Wetlands Ecology Pub Date : 2009-12-11 DOI: 10.3126/JOWE.V3I0.2223

Debasish Mahapatro, R. Panigrahy, S. Panda, R. Mishra

{"title":"Influence of Monsoon on Macrobenthic Assemblage in Outer Channel Area of Chilika Lagoon, East Coast of India","authors":"Debasish Mahapatro, R. Panigrahy, S. Panda, R. Mishra","doi":"10.3126/JOWE.V3I0.2223","DOIUrl":"https://doi.org/10.3126/JOWE.V3I0.2223","url":null,"abstract":"Abundance of macrobenthos in the outer channel area of Chilika lagoon in the east coast of India was studied during Monsoon season of 2007 & 2008. In total 27 species of macrobenthic organisms were collected during the study period season. Crustacea was emerged as the most dominate group representing 9 species followed by polychaetes with 8 species while 5 species belonged to bivalvia and 3 species to gastropoda. The others group in the study area included nematodes and echiurids. The mean density of macrobenthos was 378 organism m -2 and 392 organism m -2 in 2007 & 2008.The biomass was measured as and biomass 0.525 g m -2 and 0.575 g m -2 during 2008 &2007. Mean values of diversity indices like Margalef's richness index was 2.7 in 2007 and 3.0 in 2008. While Shannon's H' was 1.7 of 2008 and 1.8 in 2007. The Evenness J was calculated as 0.76 in 2008 and 0.94 in 2007. The result of the study shows that hydrographical parameters like Temperature (°C), pH and Salinity (psu) parameters had modest relationship with population density and biomass. The preference of macrobenthic organism to any specific parameter couldn't be established clearly and this would be due to the presence of more opportunistic filters feeders than the deposit feeders. The opening of a new outlet connecting with the sea had good influence on species richness and population density. Key words: Chilika lagoon; Macrobenthos; Population density; biomass; diversity indices DOI: 10.3126/jowe.v3i0.2223 Journal of Wetlands Ecology , (2009) Vol. 3, pp 56-67","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"755 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126948195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Fractionation of trace metals between catchment soils and associated wetland sediments of selected wetlands of Lake Victoria, East Africa. 东非维多利亚湖湿地集水区土壤与相关湿地沉积物中微量金属的分异。

Journal of Wetlands Ecology Pub Date : 2009-12-11 DOI: 10.3126/JOWE.V3I0.2222

L. Henry, E. Omutange

{"title":"Fractionation of trace metals between catchment soils and associated wetland sediments of selected wetlands of Lake Victoria, East Africa.","authors":"L. Henry, E. Omutange","doi":"10.3126/JOWE.V3I0.2222","DOIUrl":"https://doi.org/10.3126/JOWE.V3I0.2222","url":null,"abstract":"The aim of this work was to study the trace metals transfer between soil aquifers and the immediate sediments of the selected wetlands of Lake Victoria. The study covered five trace metals Pb, Cd, Cu, Zn and Mn as these are associated with vehicular traffic and with the combustion of fossil fuels which could both be significant sources of pollution within the wetlands of Lake Victoria basin. Three types of trace metal analyses from various locations of Katonga, Simiyu and Nyando catchments of Lake Victoria were performed: total concentrations, the concentrations in the non-residual fraction and the concentration in the exchangeable fraction. The soil characteristics: texture, pH and organic matter contents, were studied in relation to Cation Exchange Capacity (CEC) to assess the rate of movement of the metals between the soil and the wetland sediments. Eventually, the potential retention and leaching capacity of trace metals within the catchment soils and its possible impact on the composition of the receiving sediments of the wetlands were studied. The comparison between Nyando and Simiyu wetlands showed high variations in the soil characteristics and hence in leaching capacity of the studied metals. In general most areas in Nyando wetland required some measures to improve the CEC of the soil for higher agricultural productivity. Key Words : Trace metals; fractionation; CEC; leaching capacity; soil properties DOI: 10.3126/jowe.v3i0.2222 Journal of Wetlands Ecology , (2009) Vol. 3, pp 68-76","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130169462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Two Way Indicator Species Analysis (TWINSPAN) of the Herbaceous Vegetation in an Inland Wetland Ecosystem of Doon Valley Himalaya, India 印度喜马拉雅都恩河谷内陆湿地生态系统草本植被双向指示物种分析(TWINSPAN

Journal of Wetlands Ecology Pub Date : 2009-12-11 DOI: 10.3126/JOWE.V3I0.2433

R. K. Manhas, Mukesh K. Gautam, D. Kumari

引用次数: 5

Conservation Regime and Local Population Ecology of Sarus Crane (Grus antigone antigone) in West-Central Region of Nepal 尼泊尔中西部地区鹤的保护制度和种群生态学

Journal of Wetlands Ecology Pub Date : 2009-12-11 DOI: 10.3126/JOWE.V3I0.2224

Achyut Aryal, T. K. Shrestha, Dhriti Shree Sen, B. Upreti, N. Gautam

{"title":"Conservation Regime and Local Population Ecology of Sarus Crane (Grus antigone antigone) in West-Central Region of Nepal","authors":"Achyut Aryal, T. K. Shrestha, Dhriti Shree Sen, B. Upreti, N. Gautam","doi":"10.3126/JOWE.V3I0.2224","DOIUrl":"https://doi.org/10.3126/JOWE.V3I0.2224","url":null,"abstract":"The research explores the current and future conservation regime, and local population ecology of globally threatened water bird Sarus Crane ( Grus antigone antigone ) in Rupandehi, and Kapilvastu districts of Nepal. The study strongly recommended to declaring certain areas of these districts as a Sarus Crane Conservation Area (SCCA) for its future better management regime. A total of 168 Sarus Cranes were recorded in the area (100 in Rupandehi and 68 in Kapilvastu district). Overall population density of Sarus Crane was 9.3 individual/100 km 2 . Seventy percent of Sarus Cranes were using farmland while 30% using wetland as a regular habitat. Current threats to the Sarus Crane population are habitat loss and degradation, high electrical cable line, sugar cane cultivation surrounding the Sarus crane habitat, dam and cementation in water canal, water pollution due to nutrients and chemical leakage in water bodies, environmental contamination and other anthropogenic causes. Key words: Sarus crane, threatened, low land, wetlands DOI: 10.3126/jowe.v3i0.2224 Journal of Wetlands Ecology , (2009) Vol. 3, pp 1-11","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122522081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

A Review of Carbon Dynamics and Sequestration in Wetlands 湿地碳动态与固碳研究进展

Journal of Wetlands Ecology Pub Date : 2009-05-21 DOI: 10.3126/JOWE.V2I1.1855

S. Adhikari, Roshan M Bajracharaya, B. Sitaula

引用次数: 63

Results of an Experiment of Preparing Compost from Invasive Water hyacinth ( Eichhornia crassipes ) in Rupa Lake Area, Nepal 尼泊尔鲁帕湖区入侵水葫芦制备堆肥试验结果

Journal of Wetlands Ecology Pub Date : 2009-05-21 DOI: 10.3126/JOWE.V2I1.1852

M. R. Kafle, Gandhiv Kafle, M. K. Balla, Lekhnath Dhakal

引用次数: 12

Assessment of Vietnam Coastal Wetland Vulnerability for Sustainable Use (Case Study in Xuanthuy Ramsar Site, Vietnam) 越南滨海湿地可持续利用脆弱性评价(以越南宣尼拉姆萨尔湿地为例)

Journal of Wetlands Ecology Pub Date : 2009-05-21 DOI: 10.3126/JOWE.V2I1.1850

M. T. Nhuan, N. Ngọc, Nghiem Quynh Huong, N. T. Huế, N. T. Tue, Pham Bao Ngoc

{"title":"Assessment of Vietnam Coastal Wetland Vulnerability for Sustainable Use (Case Study in Xuanthuy Ramsar Site, Vietnam)","authors":"M. T. Nhuan, N. Ngọc, Nghiem Quynh Huong, N. T. Huế, N. T. Tue, Pham Bao Ngoc","doi":"10.3126/JOWE.V2I1.1850","DOIUrl":"https://doi.org/10.3126/JOWE.V2I1.1850","url":null,"abstract":"For sustainable use of coastal wetland ecosystems, vulnerability of the Xuan Thuy Ramsar site in the northern coast of Vietnam, an internationally important area for feeding and roosting of migratory water birds, is assessed. The assessment tools include 1) a geographical information system database, which describes physical, socio-economic, and environmental conditions; 2) spatial multi-criteria decision analysis, and 3) evaluating criteria by a pair-wise comparison method. Consequently, coastal vulnerability criteria were determined following three periods of a year with different density of migrating birds: the highest density period - from September to March of the following year; the average density period - April and from August to October; the lowest density period - the remain time in year. For each period, 5 levels of vulnerability (from 1-lowest to 5-highest level) were determined. High vulnerability level is concentrated in a great area, belonging to the ecological restored area and the south of communes Giao Thien, Giao Xuan; Low vulnerability level is distributed in communes of the buffer zone. Correspondingly to each vulnerability level, recommendations are given for the risk management, resource use, environment protection and human activities. Keywords: wetland, vulnerability, Ramsar site, hazard, sustainable use DOI: 10.3126/jowe.v2i1.1850 Journal of Wetlands Ecology , (2009) vol. 2, pp 1-16","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131253186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Water quality status of some urban ponds of Lucknow, Uttar Pradesh. 北方邦勒克瑙一些城市池塘水质状况。

Journal of Wetlands Ecology Pub Date : 2009-05-21 DOI: 10.3126/JOWE.V2I1.1866

Mohd Muzamil Bhat, T. Yazdani, K. Narain, M. Yunus, R. Shukla

引用次数: 21

Successful Integrated Coastal Zone Management (ICZM) Program Model of a Developing Country (Xiamen, China) – Implementation in Bangladesh Perspective 发展中国家成功的海岸带综合管理(ICZM)项目模式(中国厦门)——从孟加拉国的角度来看实施

Journal of Wetlands Ecology Pub Date : 2009-05-21 DOI: 10.3126/JOWE.V2I1.1854

K. S. Islam, Mohammed M. Rahman

引用次数: 8

Seasonal variations of Avifauna of Shallabug wetland, Kashmir. 克什米尔沙拉布格湿地鸟类的季节变化。

Journal of Wetlands Ecology Pub Date : 2009-05-21 DOI: 10.3126/JOWE.V2I1.1853

I. Dar, M. Dar

{"title":"Seasonal variations of Avifauna of Shallabug wetland, Kashmir.","authors":"I. Dar, M. Dar","doi":"10.3126/JOWE.V2I1.1853","DOIUrl":"https://doi.org/10.3126/JOWE.V2I1.1853","url":null,"abstract":"The main thrust in this research work has been given on the evaluation of current status of Avifauna associated with Shallabug wetland. The main objectives were to evaluate the bird population fluctuation, to determine various threats to waterbirds and their habitats, and to present the remedial measures based on the key issues identified. For the purpose of present investigation, the study area was divided systematically into three study units of 700 m² each. Visual census method was used for the estimation of bird population. Visual counting was made with the help of high power field binocular (SG- 9.2) from respective vantage points. The birds were observed on the monthly basis in 2008 and the fluctuation in bird population was determined in different seasons: summer, autumn and winter. The observations were made from 5:00 am to 7:00 am (when they come out from their resting place) and 6:00 pm to 7:00 pm (when they approach towards their resting place). The analysis of the results showed that the Shallabug Wetland is particularly important for migratory bird species and marsh land breeding species. The wetland was also found important for long distance migrants as a stopper site for feeding and resting. The bird population showed fluctuation with site differences as well as with changing seasons. Key words: Wetland, Shallabug, Avifauna, Fluctuation, Wetland management DOI: 10.3126/jowe.v2i1.1853 Journal of Wetlands Ecology , (2009) vol. 2, pp 20-34","PeriodicalId":432880,"journal":{"name":"Journal of Wetlands Ecology","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114347770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20