东北地区水土保持措施因子研究  

Practice factor of soil and water conservation in Northeastern China

作　　者：范建荣[1] 王念忠[1] 陈光[1] 焦剑[2] 谢云[2] 

机构地区：[1]松辽水利委员会,长春130021 [2]北京师范大学地表过程与资源生态国家重点实验室,地理学与遥感学学院,北京100875

出　　处：《中国水土保持科学》2011年第3期75-78,92,共5页Science of Soil and Water Conservation

基　　金：水利部公益性行业科研专项经费项目“东北黑土区水土保持措施效益评估及防治技术”(201001026);国家重点基础研究发展规划项目课题“区域水土流失过程与趋势分析”(2007CB407203);国家发展改革委员会项目“东北黑土区水土流失综合防治试点工程”

摘　　要：东北地区土壤流失日益严重,亟需了解各种措施的水土保持效果,为水土保持规划和土壤流失预报提供科学依据。利用4个小流域17个径流小区总计343次产流产沙观测资料,计算并比较了本区7种主要水土保持措施因子值。水平台田和水平坑的工程措施因子值分别为0.020和0.061;灌木梗和封禁的生物措施因子值分别0.054和0.363。大豆顺坡种植、横坡种植和地梗植物带的耕作措施因子值分别为0.624、0.257和0.186。研究成果可为应用土壤侵蚀模型进行土壤流失预报服务。Soil erosion is a severe onging problem in Northeastern China.To give basis to soil and water conservation plan and soil erosion prediction,the effects of different conservation practices on runoff and sediment reduction are urgently to be studied.From 17 runoff plots in four watersheds,runoff and sediment records of 343 soil erosion events were collected to estimate the effects of soil and water conservation practices.The practice factors of seven soil and water conservation types were calculated,and they were 0.020 for engineering-control factor for terrace,0.061 for cut-off drain,0.054 for biological-control factor of shrubs,0.363 for natural ecosystem rehabilitation,0.624 for tillage factor for up-down slope tillage with soybeans,0.257 for contour tillage with soybeans,and 0.186 for counter ridge combing with vegetation stripes.The results of this study could be applied in soil erosion prediction by using soil erosion model.

关 键 词：水土保持措施 生物措施因子 工程措施因子 耕作措施因子 东北地区 

分 类 号：S718.56[农业科学—林学]