水土保持研究2012，Vol.19Issue(3)：74-77,4.
黄土丘陵沟壑区微地形对土壤水分及生物量的影响
Effect of Microrelief on the Soil Water and Vegetation Arrangement in Loess Hilly and Gully Region
摘要
Abstract
In loess hilly and gully region, fluctuating land surface forms microrelief. Microrelief-based vegetation arrangement has become an important method in ecological restoration and construction. By using sampling surveys and random sampling, the biomass and the soil water content were surveyed by TDR on microrelief and the corresponding original slope in Hejia valley, Wuqi County, Shaanxi Province. Results showed that the coefficient of variation of microrelief soil water decreased with the increase of soil depth. The varia- tion coefficient of soil water （0--60 cm soil） at scarp was the biggest （0. 259） while at shallow gully was the smallest （0. 226）. In terms of soil water on sunny slope and soil water, landform units might be ranked in the descendant order of collapse, gully〉platform〉collapse〉shallow gully〉original slope〉scarp, in addition, the sequence of vegetation arrangement was eollapse〉gully〉shallow gully〉original slope〉platform 〉scarp, and the vegetation arrangement of microrelief was correlated negatively the variation coefficient of soil water （0-60 cm depth of soil）.关键词
黄土丘陵沟壑区/微地形/土壤水分/生物量Key words
loess hilly and gully region/microrelief/soil water/vegetation arrangement分类
农业科技引用本文复制引用
邝高明,朱清科,刘中奇,赵荟,王晶..黄土丘陵沟壑区微地形对土壤水分及生物量的影响[J].水土保持研究,2012,19(3):74-77,4.基金项目
林业公益性行业科研专项 （）
