基于 GIS 的冀西北高原土壤性状空间变异性研究
张继宗,柴彦亮, 冯立肖,蒋金丽,
GIS-based study on spatial variability of soil characteristics in north-west plateau of Hebei
河北农业大学学报 . 2008, (5): 24 -28 .