标题:Wetland Mapping and Study of Temporal Changes in Correlation with Meteorological Data for Solapur Districts of Maharashtra Using Remote Sensing And GIS Techniques
期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN:2194-9042
电子版ISSN:2194-9050
出版年度:2009
卷号:XXXVIII-8/W3
页码:381
出版社:Copernicus Publications
摘要:A wetland is an area where the soil is saturated with moisture either permanently or seasonally. Wetlands are considered the most biologically diverse of all ecosystems, a repository of various species of flora and fauna available in the area. Wetlands are directly or indirectly beneficial to human society, and are specifically valuable to people for recreational and educational activities. Mainly two types of wetland classes are present, coastal wetland and inland wetlands. Coastal wetlands are found along the coasts. They are closely linked to estuaries; though shallow coastal areas have mud flats or sand flats without vegetation. Inland wetlands are most common on floodplains along rivers and streams, in isolated depressions surrounded by dry land along the margins of lakes and ponds. Remote Sensing offers a cost effective means of identifying and monitoring wetlands over large areas on a temporal scale. In this study, we aim at providing information on characteristics of wetlands obtained from standard remote sensing techniques. The different wetland classes are mapped using pre-monsoon and post-monsoon LISS III satellite data for Solapur of Maharashtra state. Besides mapping, an attempt was made to monitor the changes in these wetlands over a time period of last 12 years and analyze the causes that have led to the current scenario in relation to meteorological data. It was found that the number of wetlands fluctuated over time. Most wetlands were delineated in post monsoon season. Some wetlands were less than 2.5 ha, were mapped as points