神木试区环境地貌特征  

The Environmental Geomorphology Characteristics of Shenmu Experimental Area

作　　者：张平仓[1] 王斌科[1] 唐克丽[1] 

机构地区：[1]中国科学院水利部西北水土保持研究所,陕西杨陵712100

出　　处：《水土保持研究》1993年第2期16-23,共8页Research of Soil and Water Conservation

摘　　要：根据野外考察获取的大量资料,着重对试区区域环境地貌形成、演化过程、地貌的形态组合特征进行了详实的分析和探讨。并在此基础上,对于六道沟流域水系形成的年龄进行推算,得出现代地貌和水系是在中更新时期距今约148～46万年期间形成的古沟谷基础上,经过后来堆积和切割重新演化形成,而且处于发展之中。同时还就一些特殊的地貌现象进行了探讨。最后,文章就现代地貌发育与地表侵蚀的关系以及控制沟道侵蚀的途径进行了评述。According to much information acquired in field investigation, the process of formation and evolution of environmental geomorphology, character of geomorphological pattern composition in the Shenmu experimental area is fully-accurately discussed and analysed in this paper. And on basis of abou-mentioned results, formation age of river net of the Liudaogou watershed has been calculated. The results showed that morden landform and river net are deducted undergoing accumulation and erosion of the later period based on forming ancient velley during the middle Plistocene about 148-46 ten thousand years up to now, and the morden landform and river net have being developed. Meanwhile some special geomorphological phenomenons are discussed. The relationship between the morden geomorphological development and the surface erosion, and the ways of control gully erosion are evaluated and discussed.

关 键 词：六道沟流域 地貌发育演化 新构造运动 土地沙化 综合治理 

分 类 号：S157[农业科学—土壤学]