黄土高塬沟壑区水土流失综合治理范式  

Paradigm of integrated management on soil and water losses in Loess Plateau-gully Region

作　　者：毕华兴[1] 刘立斌[2] 刘斌[3] 

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]黄河水利委员会,郑州450003 [3]黄河水利委员会西峰水土保持科学试验站,甘肃庆阳745000

出　　处：《中国水土保持科学》2010年第4期27-33,共7页Science of Soil and Water Conservation

基　　金：国家重点基础研究发展计划项目("973"项目)"水土流失综合调控原理与治理范式"(2007CB407207)

摘　　要：黄土高原是中华农耕文化的发祥地,其主要地貌类型区之一的黄土高塬沟壑区,其农业发展有着比黄土高原其他地区优越的自然条件。但长期以来,由于自然和人为因素的双重作用,该区水土流失十分严重,塬面径流下沟导致沟头不断前进,塬面逐年萎缩。由于沟坡坡度大而导致重力侵蚀异常活跃,侵蚀强度逐渐加强。在特殊的自然环境、人口压力以及经济发展需求的条件下,探索黄土高塬沟壑区水土流失综合治理范式成为水土保持领域科技人员和当地政府急需解决的问题之一。在解析黄土高塬沟壑区自然地理特征、水土流失特点以及社会经济发展需求的基础上,通过对该区现有的水土流失综合治理模式进行梳理,结合范式的概念,提出黄土高塬沟壑区水土流失综合治理范式。The Loess Plateau has a long history of Chinese culture and the birthplace of farming,in which,Loess Plateau-gully region is one of the typical geomorphic type in the Loess Plateau,and has the unique natural conditions for agricultural development than that in other regions of the Loess Plateau.For a long time,due to the dual role of natural and human activities,the soil erosion is very serious in this region,surface runoff from plateau leading to the head of gully continues to advance and the area of plateau surface gradually shrieked.On the slope of gully,gravity erosion are serious,and the soil erosion intensity gradually increased.Under the conditions of exceptional natural environment,population pressure and economic development demand in the new era,how to explore the comprehensive control paradigm of soil erosion for gully region of Loess Plateau in the new era is one of the key problems to be solved by technical staff of soil and water conservation and local government.In this paper,the natural geographic features,soil erosion characteristics and socio-economic development needs in the Loess Plateau-gully Region have been analyzed,the existing soil erosion control models are reviewed,at last,the paradigm on comprehensive control of soil erosion for Loess Plateau-gully Region in the new era are proposed.

关 键 词：水土流失 综合治理 范式 黄土高塬沟壑区 

分 类 号：S157.2[农业科学—土壤学]