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遥感技术(RS)、地理信息系统(GlS)、全球定位系统(GPS)在湿地调查和湿地管理方面有着非常重要的应用价值,比如在获取湿地的恢复、管理、可视化信息以及湿地水资源和社会经济资料方面.本文首先介绍了中国湿地的现状.然后描述了3S 技术在湿地领域的应用,包括湿地的土地利用及其变化追踪,湿地演替过程,景观变化分析,洪水和湿地资源监测,空间定量分析与模型,生态系统服务评价,生态过程与风险评价,疾病控制,水质监测,污染监测,湿地水文,湿地地理信息系统等.第三,提出了目前3S技术的应用的限制和应有的发展方向.指出了中国在湿地研究和管理领域中由于先进技术知识和技巧的有限,对地理信息系统认识的不足和使用的能力的不够,使地理信息产出与决策之间的关系不清晰;还有在湿地研究方面缺少政策支持,缺少共享的地理信息系统数据.为了实现3S技术的真正应用,要实现湿地相关数据信息的可获得性,可靠性,一致性,连续性,由此相关的环境、政策规章和资金是必须的.参38.“,”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.