摘要
介绍了基于GIS土壤质量等级评价的实现过程 ,探讨了土壤等级评价因子的选择和因子权重的确定方法。在分析了几种常用方法在土壤质量评价中的应用特点并指出几种方法的局限性之后 ,提出了顾及因子稳定性的多元线性回归分析法 ,并以南方某地为例进行了实例分析。
This paper introduces the process of evaluating soil quality based on GIS,discusses how to select factors and to present powers to factors participating in evaluation in detail and points out the faults of AHP,PCA and LR.Then this paper presents a new method named liner regression taking into account relative coefficient variation among factors and evaluating objects.An instance is cited to prove and validate that the new method makes the evaluation of soil quality more accurate and reliable.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2003年第1期60-64,共5页
Geomatics and Information Science of Wuhan University
