地表干扰恢复措施对宁南黄土丘陵区典型草原土壤水分入渗特性的影响  

Influences of Restoration Measures of Different Land Disturbances on Soil Water Infiltration Characteristics of Typical Steppe in the Hilly Area of the Loess Plateau in South of Ningxia

作　　者：韩丙芳[1,2] 马红彬[3] 

机构地区：[1]宁夏大学土木与水利工程学院旱区现代农业水资源高效利用教育部工程研究中心,宁夏银川750021 [2]宁夏节水灌溉与水资源调控工程技术研究中心,宁夏银川750021 [3]宁夏大学农学院草业科学研究所,宁夏银川750021

出　　处：《安徽农业科学》2010年第4期1933-1934,1961,共3页Journal of Anhui Agricultural Sciences

基　　金：宁夏自然科学基金项目(NZ0839;NZ0704);宁夏大学科研基金项目(ZR200722);高校博士点基金项目(20096401120002)

摘　　要：[目的]探讨黄土丘陵区地表干扰恢复措施对土壤水分入渗特性的影响。[方法]用双环法测定了宁南黄土丘陵区典型草原鱼鳞坑、水平沟和封育3种恢复措施实施5年后土壤水分入渗特性。[结果]鱼鳞坑、水平沟措施使土壤水分入渗速率显著增加,这与地表干扰导致土壤容重和孔隙度增加有关。水分入渗过程适合用Philip入渗公式模拟。[结论]地表干扰恢复措施可提高土壤水分入渗性能。[Objective]The research aimed to study the influences of different land disturbances restoration measures on soil water infiltration characteristics in the hilly area of the Loess Plateau.[Method]Soil water infiltration characteristics under three restoration measures of fishscale,parallel ditches and ungrazed grasslands were surveyed by double ring method.These restoration measures had carried out five years in typical steppe in hilly area of the Loess Plateau in south of Ningxia.[Result]The measures of fish-scale pits and parallel ditches increased soil water infiltration rate evidently.The results had correlation with the increasing of soil bulk density and porosity caused by land disturbances.The water infiltration process could be imitated by Philip formula.[Conclusion]Land disturbances restoration measures could enhance the soil water infiltration capacity.

关 键 词：地表干扰恢复措施 黄土丘陵区 典型草原 土壤水分入渗特性 

分 类 号：S152.7[农业科学—土壤学]