水土保持学报2011，Vol.25Issue(4)：69-73,78,6.
三峡库区植物篱对土壤理化性质及抗蚀性的影响
Effects on Soil Physicochemical Properties and Anti-erosion Caused by Plant Hedgerows in Three Gorges Reservoir Area
摘要
Abstract
The soil erosion of sloping farmed in Three Gorges reservoir area is serious,which has been a threat to the ecological environment and the safety of the reservoir.Based on a 5-year fixed field expermient,an comparative analysis between the 2 hedgerows and CK to research the effects on soil physicochemical properties and soil erosion caused by plant hedgerows was carried out.The results showed that： The two plant hedgerows of Vitex negundo and Begonia fimbristipula had improved soil physical properties to varying degrees;In different locations of hedgerow plots,soil nutrient index were with the highest content within the hedgerow,and with the minimum contents in the steep land between hedgerows,and the contents before the hedgerows and behind the hedgerows were between the first two locations,the nutrient index increased gradually from the top of the hill to the foot in the same slope of the control treatment,which showed that these nutrient index moved and enriched to the lower slope;The strength of soil anti-erodibility in different hedgerows separately showed that： Vitex negundo（79.2%）〉 Begonia fimbristipula（15.3%） CK（8.7%）,in addition to sand,silt and clay content,there were significant or very significant correlations between the soil anti-erosion index within the hedgerow and other soil chemicophysical properties.The index of soil anti-erosion within the hedgerows decreased with the increase of time,there were cubic polynomial relationships between them;Considered improving soil physicochemical properties and lightening soil erosion,Vitex negundo hedgerow was better than Begonia fimbristipula hedgerow.关键词
三峡库区/植物篱/土壤理化性质/土壤抗蚀性Key words
Three Gorges reservoir area/plant hedgerows/soil physicochemical properties/soil anti-erosion分类
农业科技引用本文复制引用
吕文星,张洪江,程金花,黎健强,王幸,吴煜禾,王冉..三峡库区植物篱对土壤理化性质及抗蚀性的影响[J].水土保持学报,2011,25(4):69-73,78,6.基金项目
国家“十一五”科技支撑计划专题“地埂＋植物篱结构和功能” （）
国家自然科学基金项目 （）
国家“十一五”林业生态建设关键技术研究与示范 （）
国家林业局“948”项目 （）
