地理信息系统在土壤属性制图中的应用

APPLICATION OF GIS TO SOIL PROPERTY SPATIAL DISTRIBUTION MAP

土壤属性空间分布图是土壤空间变异性最直观的表达形式.传统的土壤属性分布图的制作在很大程度上依赖于制图者的知识背景和主观判断,难以定量地反映土壤属性的空间变异性.随着空间统计理论和分析技术的发展,定量化的土壤属性制图方法已成为可能.本文在简要介绍地理信息系统(GIS)制作土壤属性分布图数学原理的基础上,以ARC/INF07.1为例,讨论了GIS在定量化土壤属性分布图生成中的应用问题.

Soil property spatial distribution map is one of direct expressions of soil spatial variability. The traditional soil property maps, which wre made by the surveyors using their intuition and formal knowledge and understanding to collate all the information available on the soil, were difficult to quantificationally reflect the distributions of soil properties. This paper mainly discussed how to apply GIS to create quantitative soil property spatial distribution maps with an example by ArcInfo7.1.