太行山片麻岩低山区水土流失规律研究  

Dynamic Patterns of Soil and Water Losses in Low-lying Mountains of Gneiss in Taihang Mountain

作　　者：顾新庆 张金香[1] 

机构地区：[1]河北省林业科学研究院

出　　处：《林业科技开发》2005年第4期29-32,共4页China Forestry Science and Technology

基　　金："九五"国家重点科技攻关专题"太行山不同类型区生态林业工程综合配套技术"(编号:96-007-04)中的部分研究内容。

摘　　要：水土流失规律是配置水土保持林的依据,也是进行山区治理和开发的基础。不同性质岩石发育形成的土壤其水土流失特点不同。根据试验观测数据和洪水灾害考察结果,结合历史统计资料,对河北太行山的主要类型岩石———片麻岩低山区的水土流失特点进行了初步研究。结果表明:坡面面蚀发生范围广,程度重,但强度不大;重力侵蚀的诱因是暴雨,多发生在坡度大于35°的陡坡坡面;水的流失是低山丘陵区坡面水土流失的重要形式。Laws of soil and water losses are bases to construct soil and water conservation forest, and are also the bases of management and development in mountainous areas. Soils developed from different rocks may have different laws of soil and water losses. A preliminary study on laws of soil and water losses in gneiss, which is the main type of rocks in Taihang, was carried out in this paper on the bases of examination data, survey of flood and historic statistic data. Results were as follows： surface erosion occurs in vast areas, but in low intensions; gravitation erosion was caused by rainstorm, and always happened in steep slope with gradient degree more than 35;water loss is the most important form in low mountainous areas.

关 键 词：片麻岩 水土流失 规律 特点 水土流失规律 低山区 太行山 规律研究 水土流失特点 水土保持林 

分 类 号：S157.1[农业科学—土壤学] S714.7[农业科学—农业基础科学]