中国湿地卫星遥感的应用研究

湿地作为独特的生态系统, 具有重要的生态价值与科学研究价值。由于湿地多处于偏远地区难以有效进行监测与开展研究, 更凸现出遥感信息定量化、多时相、多平台、信息量大、可比性强的优点。在对比国外最新的相关研究基础上, 从湿地卫星遥感识别分类模型、湿地资源调查、湿地资源动态变化、湿地植被生物量估测以及湿地卫星遥感未来发展趋势与特点5 个方面对我国湿地卫星遥感应用研究进展及其主要成果特点进行全面回顾, 对我国湿地卫星遥感发展趋势与前景进行了评述与展望。

Application of Satellite Remote Sensing Technology to Wetland Research

Wetland specifies with both ecologic and scientific values.Because of most wetlands located too far to be monitored,satellite imagery characters with quantity information,multi-temporal,multi-platform, comparability will largely favor wetland research,so remotely sensed data have been widely proved an effective tool in wetland investigation in the past decades.The application of satellite RS technology on wetland research in China is reviewed from the aspects of the survey of wetland resource inventory,the model of wetland identification and classification,research of wetland dynamic change,wetland vegetation biomass estimation and lately development trends as well as its principal characters of satellite RS research of wetland.Particularly,the paper introduces some progress of RS application on urban wetland in China.The detection study on dynamic change of wetland as natural resources by RS methods is also presented in a wide scope from inland plain wetland,delta or riverine wetland to plateau wetland.Both academic Achievements and prospect comments are also presented in the paper by reviewing both home and abroad researches.The application trends of remote sensing in wetland research will be the following three aspects: much more multi-temporal and multi-spatial RS platforms will be provided for future research,the scale of research on wetland will be smaller due to the continuous loss of wetland as well as its fragmentation, and integration of RS,GIS,GPS and wetland will be much more emphasized.