基于GIS的土地营养评价方法研究——以山东省东营市黄河三角洲地区为例

Nutritional Assessment of Land GIS-based Approach—A Case Study of the Yellow River Delta,Dongying City,Shandong Province

介绍了在GIS支持下的土地适宜性评价的基本原理与一般方法,以及GIS在评价中的应用。并以山东省东营市黄河三角洲地区为研究区域,建立了土地评价方案进行分析。着重阐述了应用地理信息系统软件Arc GIS Desktop 9.2对研究区土地土壤成分(包括有机质、钾、盐的含量)进行的处理和分析。利用软件将原始点位数据生成面数据,再针对生成的数据进行裁剪、转换及综合分析等处理,对研究区土地资源的适宜性进行评价,为土地资源的合理开发利用提供科学根据。

This paper introduces the fundamental and the general method of land suitability evaluation with support of GIS,and applications of GIS in land evaluation. And then,Shandong Province Dongying City Huanghe Delta region was selected as study area in this paper. The plan of land evaluation was established to analyze. And it emphasizes to process and analyze soil constituent（ including organic matter,content of potassium and salt） with Arc GIS Desktop 9. 2. The initial point position data generate the plane data with the software,and then,using the software to cut,convert and analyze on the new data. Following,the land suitability was evaluated roughly,which will provide scientific basis for the rational development and utilization of land resources.