黄土高原不同规格鱼鳞坑土壤水分状况研究  

Soil Moisture of Fish-scale Pits of Different Specifications in Loess Plateau

作　　者：王晶[1] 朱清科[1] 云雷[1] 雷声坤[1] 谭枭[1] 谢静[1] 邝高明[1] 

机构地区：[1]北京林业大学水土保持与荒漠化防治教育部重点实验室,北京100083

出　　处：《水土保持通报》2011年第6期76-80,共5页Bulletin of Soil and Water Conservation

基　　金：国家"十一五"科技支撑项目"困难立地工程造林技术研究"(2006BAD03A0302)

摘　　要：鱼鳞坑是坡面水土保持的一项工程治理措施,同时又是一种坡面植树造林的整地方法。由于鱼鳞坑施工简单,在拦蓄地表径流,保持水土,促进林木生长等方面作用比较显著,因此得到广泛应用。为了研究不同规格鱼鳞坑的土壤水分变化,采用固定点监测方法对陕北黄土区4种规格的鱼鳞坑土壤水分进行了对比研究。结果表明,在半阳向陡坡和极陡坡上,4种规格鱼鳞坑土壤含水量表由大到小表现为:中规格>大规格>较小规格>小规格>对照,而在半阴向缓坡和阴向缓坡上,4种规格鱼鳞坑土壤含水量由大到小依次为:大规格>中规格>较小规格>小规格>对照。Fish-scale pit is one of the soil and water control measures in the slope,and it is also a kind of slope afforestation site preparation methods.Due to its simple construction,storing surface runoff,the effect of maintaining soil and water,and promoting the growth of trees is relatively remarkable,it is widely application.In order to study soil moisture of fish-scale pits of different specifications by using fixed-point monitoring methods,soil moisture of fish-scale pits of four specifications in the Loess Plateau region of Northern Shaanxi Province was studied.Results showed that different specifications had a significant impact on soil moisture content.In terms of soil water on semi-sunny steep slope and extremely steep slope,specifications may be ranked in the descendant order of middle,large,small,smaller and contrast,in terms of soil water on semi-shady gentle slope and shady gentle slope,in the descendant order of large,middle,small,smaller and contrast.

关 键 词：黄土高原 不同规格 鱼鳞坑 土壤含水量 

分 类 号：S152.7[农业科学—土壤学]