基于GIS的江汉平原湖区农业用地适宜性评价  

Study on the GIS-based agricultural land suitability evaluation in Jianhan plain lake district

作　　者：李蓉蓉[1] 王学雷[1] 

机构地区：[1]中国科学院测量与地球物理研究所,武汉430077

出　　处：《华中师范大学学报（自然科学版）》2000年第2期237-240,共4页Journal of Central China Normal University：Natural Sciences

基　　金：国家自然科学基金!资助项目 ( 49871 0 71 );中国科学院;湖北省"九五"农业科技开发项目 !( 962 T0 50 7;KN95-0 3 )

摘　　要：土地适宜性评价是土地资源规划与管理的重要内容 ,是确定合理的土地利用方式的前提 .在地理信息系统 ( GIS)应用中 ,土地适宜性评价主要是通过对土地的评分来确定其相对于某种用途的适宜程度 ,其过程一般包括选取评价因素 ,单因素评价 ,多因素乘权叠加即多因素综合评价 .相对于传统的纯数值评价方法 ,基于 GIS的土地适宜性评价方法将数值计算和图形处理有机地结合起来 ,具有简洁、直观、易操作和快速等特点 .运用 GIS工具 ,对地处江汉平原湖区的监利县主要农作物 (水稻、小麦、棉花、豆类、油菜等 )进行了土地适宜性评价 ,结果表明 ,GIS的应用可以有效地支持这一评价过程 .Land suitability evaluation, as a prerequisite in determining rational ways of land use, is very important in land resources planning and management. With the emerging and development of geographical information system (GIS), it becomes one of the important application fields of GIS. In GIS applications, grading by score is mainly used to determine the suitability level of a land against some kinds of usage. Its implementation includes three steps: (1) selection of evaluation factor; (2) evaluation of single factor; and (3) comprehensive evaluation of multi factors. Compared with traditional method by use of pure quantity, land suitability evaluation based on GIS may integrate the numeral calculation with graphical procession effectively, so as to raise the evaluation efficiency. This paper presents the case of agricultural land suitability evaluation in Jianli County by the use of GIS. It is shown that GIS can support the evaluation process effectively.

关 键 词：农业用地 适宜性 评价 江汉平原 湖区 

分 类 号：F321.1[经济管理—产业经济] P91[天文地球—自然地理学]