浅析地貌演化过程的人类活动

preliminary analysis of human activity of geomorphological evolutionary process

地貌形态是内外营力过程瞬时对抗作用的结果.人类历史与地貌演化的过程相比,不过是非常短暂的瞬间,但是,自从人类诞生以来,由于人类活动的干扰,自然的地貌演化过程发生了改变.本文以侵蚀过程为例,通过人类活动对土壤侵蚀影响的定量分析,从一个侧面分析人类活动在地貌演化中的作用。

It is common knowledge that geomorphological evolutionary process iscontrolled by two processes, endogenic forces process and exogenic forces pro-cess. Endogenic force sare from the interier of the solid erath, while exogenicforces are from atmosphere and hydrosphere. the geomorphological evolution-ary process is affected by exogenic forces, such as wind, flowing water and gla-cier, and endogenic forces work simultaneously. All kinds of landform are theinstantaneous results of antagonistic action of endogenic and exogenic forces.comparing with geomorphological evolutionary history, human history is avery short instance,But people have to undertake cultivation, animal husbandryand other productive activities for their living since they came to the world, thisaffects the geomorphological evolutionary process. Especially, the effect of hu-man activity on geomorphological evolution is becoming more and more vio-lent for several thousand years. the authors have studied soil erosional processas a example, and analyzed the effect of human activity on soil erosin. thus theposition and effect of human activith on geomorphological evolution have beenshown from one point.