风化破碎带地区土壤侵蚀变化特性分析

Analysis of the variation characteristics of soil erosion in weathered broken zone regions

目前,我国生产建设项目较多,对地表的扰动面积较大,若不实施好水土流失防治措施,对生态环境的影响相当大.因此,我们在从事水保监测工作的过程中,应该注意总结,根据项目区所在地理位置特性、气候特点及研究项目区土壤侵蚀特性,有针对性地提出防治措施及建议,尽可能地降低项目建设所引起的水土流失量.本文主要以云南省镇雄县朱家湾煤矿建设项目为例,根据本工程项目在建设过程中的水土保持监测数据,对该项目各监测时段内的土壤侵蚀量的变化情况进行分析,总结风化破碎带地区在冻融侵蚀影响下的土壤侵蚀量变化特性.

There are much construction projects and larger surface disturbance area in our country at present. If the implementa- tion of soil and water loss prevention and control measures isn＇t good, the influence of ecological environment is quite big. So in the course of soil and water conservation monitoring we are engaged in, to sum up experience should be paid attention to and based-on the geogrophical position charteristics and climate feathers and soil erosion feathers of the project zone, the prevention and control measures and suggestion are put forword in order to as far as possible reduce the amount of soil and water loss which the projects construction results in. This paper takes the construction project of Zhujiawan coal mine in Zhenxiong county as an example, based on the munitoring course of soil and water conservation in the construction course of this paper, the variotion condition of the amount of soil erosion in every monitoring period is analyzed. At last, the variation feathers of the amount of soil erosion under the impact of freezing and thawing erosion in weathered broken zone region is summarized.