摘要
该文通过野外考察和不同时期的航片解译,对30年来,陕北黄土丘陵区及其典型小流域的人类开荒活动作了重点调查研究,并根据所取得的初步资料,结合流域的侵蚀特征及库坝淤积情况,分析讨论了开荒活动的时间变化、空间分布及其对侵蚀产沙的影响,为深入探讨人为活动与加速侵蚀的关系提供了依据。
Through the field surveys and interpretation of air photoes in different stages, this paper studied the land reclamation activities by human beings the loessal hilly areas in 30 years. Based on the obtained preliminary information and the characteristic of soil erosion and siltation of reservoirs, this paper also analyses and discusses the time variations and spacial distributions of waste land reclamation activities and its effects upon soil erosion and sediment production, the base was given for discussion of the relation between human activities in production and acceleration of soil erosion.
出处
《水土保持通报》
CSCD
北大核心
1991年第5期54-60,25,共8页
Bulletin of Soil and Water Conservation
关键词
土壤侵蚀
开荒
黄土高原
the loess plateau
loessal hilly area
small watershed
waste land reelamation
aoceleratied soil erosion
