干旱地区农业研究2011，Vol.29Issue(1)：146-150,5.
黄土坡耕地地表微地形空间变异性研究
Spatial variability of micro-topography in the loess slope land
摘要
Abstract
The semi-variance methodology is applied to analyze the spatial variability characteristics of field surface relative elevation (SRE) under different types of tillage measures like artificial hoeing, contour tillage and artificial digging in loess slope land. The results indicated that: ( 1 ) The degree of spatial correlation of different types of tillage practice was contour tillage ＜ artificial digging ＜ artificial hoeing. (2) Soil surface microrelief had the self-similar features to the slope with hoeing and that with digging in the aspects of different directions, while to the slope with contour tillage, it had self-similar features in the parallel to slope and had self-affine features in the vertical to slope, and spherical interpolation model could be used to simulate the spitial distribution features of micro-topography in the loess slope land.关键词
半方差函数/空间变异/微地形/黄土区Key words
semi-variogram/ spatial variability/ micro - topography/ loess area分类
农业科技引用本文复制引用
赵龙山,宋向阳,张青峰,吴发启..黄土坡耕地地表微地形空间变异性研究[J].干旱地区农业研究,2011,29(1):146-150,5.基金项目
国家自然科学基金(40871133) （40871133）
国家重点基础发展研究计划(2007CB407201) （2007CB407201）
