摘要
根据研究区璧山县狮子小流域的土壤侵蚀空间变异特征,应用地统计学方法分析结果表明,土壤侵蚀在西北-东南方向呈现明显的自相关性和方向变异性,其变异性特征与研究区域的地形地貌分布特征及土地利用结构分布特征一致。经K rig ing预测值与U SLE方程预测结果对比分析表明,研究对象的空间变异规律认识程度对地统计学方法预测模型的建立及预测结果精度影响较大。
According to the Shizi small watershed＇s soil erosion space variation characteristic, the geostatistics method analysis indicated, the erosion in the area is on belt distributing. Its variant characteristic is similar to the topography distribution and land use structure distributing characteristic. The comparative analysis between the Kriging forecasting value and forecasting result of USLE＇s equation indicates that the cognitive degree to soil erosion space variant regular has a great influence on the mode of geostatistics method and forecasting precision.
出处
《水土保持研究》
CSCD
北大核心
2005年第5期149-152,共4页
Research of Soil and Water Conservation
关键词
土壤侵蚀
空间变异
地统计学
soil erosion
space variation
geostatistical analysis
