摘要
以神府矿区束鸡沟为典型小流域，讨论了风蚀水蚀交互作用的时空分布及其特征。风蚀水蚀交互作用在沙质坡面、坡面切沟和沙质沟道区表现最为突出，并形成了风蚀水蚀交互作用特有的侵蚀形态。文中并简要讨论了全新世以来束对外开放沟流域的侵蚀演变。
Locdted in the central area of the Shenfu coal mining area of Shaanxi Province, Shu jigou is one of the tributaries of Ulanmulun river at the upper reaches of Kuqy River, its catchment area is 3. 3 km2. Shujigou watershed belongs to the typical interlocating zone of wind erosion and water erosion. The distribution of wind erosion, deflation mainly, is ex tensive, and that of water erosion, sheet erosion and gully erasion mainly, is controlled by surface material and terrain conditions. Valley and gully gravitational erbsion is serious here.In this paper, Shujigou in Shenfu Coal Miring Area is taken as a representative water shed to study temporary and spatial distribution arid characteristics of wind-water inter action. The essence of wind-water interaction is that one erosivity remakes erosive forms formed by the other. In a year, wind erosivity remaking water erosive forms and water erosivity remaking wind erosive forms happen alternatively. The spatial distribution of wind-water erosion interaction is similar to water erosion zones. On sandy slopes, rocky hills, in surface gullies and sandy valley gullies, wind-water interaction is extensive and shapes its characteristic erosive forms. In addition, erosion evolution of the Shujigou wa tershed since Holocene is studied. It can be classified into 1000~6000a BP, 7000~6000a BP, 6000~3000a BP and late Holocene Stage.
出处
《干旱区地理》
CSCD
北大核心
1998年第1期34-39,共6页
Arid Land Geography
关键词
束鸡沟
风蚀
水蚀
交互作用
侵蚀演变
土壤浸蚀
Shujigou watershed
wind-water erosion interaction
soil erosion evolution
