Applications of RS, GIS and GPS technologies in research, inventory and management of wetlands in China

Abstract

This paper introduces the state of waterlands in China and discribes the applications of Remote Sensing (RS), Geographical Information System (GIS) and Global Positioning System (GPS) in wetland research, including land-coverclassification and change detection, wetland evolutionary processes, landscape-change analyses, channel migration, flood and wetlands resource monitoring and spatial quantitative analyses/modeling, ecosystem service evaluation, ecological processes and risk assessments, disease control, water quality monitoring/modeling, pollution monitoring/modeling, wetlands hydrology, wetland information systems and WebGIS. The limitations and needs for optimal use of these technologies are discussed, such as the limited advanced technical knowledge and skills, low awareness and capacity, unclear link between GIS output and policy making, lack of supporting policies and standards, lack of a wetlands geo-information networklimite, and the use of these techniques in wetland research. It is suggested that for realising true applications of RS, GIS and GPS technologies, the availability, accessibility, reliability, homogeneity, and continuity of wetlands-related geo-information, enabling environment, policies and standards, and funding are needed.

Keywords

Geographic Information System (GIS) / Remote Sensing (RS) / Global Position System (GPS) / 3S / Wetland / P941.78 / B

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