基于GIS的内河岸线资源评价研究——以武汉市域长江干流为例

Water-front resources evaluation supported by GIS:A sample on the Changjiang Mainstream in Wuhan Metropolis

内河岸线资源是国土资源的重要组成部分,但专门的评价研究在国内外尚不多见。国内研究始于20世纪80年代末,研究区域集中在长江中下游,研究方法已经从定性发展到定量,并引进了GIS手段。论文首先总结了前人的研究,将岸线评价分为质量分等评价、适宜性评价和综合性评价3种类型,概括为评价单元的划分、单项指标的评价和综合质量分等3个步骤。之后,论文以自然资源评价的理论方法为指导,通过武汉市域长江干流岸线的建港自然条件评价的实例,系统探索了运用GIS方法评价岸线资源的一般程序,将其分为:数据准备、建立数据库、评价实施、成果输出4个步骤。

Water-front resources are the important parts of land resources in China.But there are few practical studies,whether in China or in other countries of the world.In China,the studies have begun from the end of1980s' and have mostly been on the down and middle of Changjiang main stream.In the methods,quantitative analysis and GIS tools have been exercised.Based on the old researches,this paper summarized three kinds of and three steps of evaluating water-front resources.Three kinds are the evaluation for classifying water-front quality,the evaluation for water-front applicability and the integrated evaluation of water-front.The steps are to cut cells,to evaluate each factor,and to grade water-front.And more,as a background of the meth-ods of resource research,by a case:the water-front evaluation to nature setting for ports on the Changjiang mainstream in Wuhan metropolis,the author discussed systemically general steps of applying GIS to evaluate water-front resources.The evaluation is finished by four principal steps:data prepared,database set up,evaluation implementation and results output.