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开发建设项目中临时或永久弃土场是水土流失产生较为集中的区域。根据弃渣场堆土边坡水土流失发生机理,通过人工模拟降雨试验研究堆土容重变化与土壤侵蚀量的关系,进而探讨通过测定容重精准监测土壤侵蚀量方法的可行性。SPSS相关性分析结果表明,容重和土壤侵蚀量呈极显著负相关,随着容重增大,土壤侵蚀量呈明显减少趋势,且这种相关性的存在并不受雨强和堆积体坡度这两个因素影响。利用数据分析方法,建立了容重与土壤侵蚀量的关系模型。但是要利用这种方法监测开发建设项目土壤侵蚀量还需要进行大量试验,这是今后研究的重点。
Temporary or permanent spoil sites in development and construction projects are areas where soil erosion is more concentrated. According to the occurrence mechanism of soil erosion in the spoil grounds, the relationship between the soil bulk density change and soil erosion is simulated by simulated rainfall test, and then the feasibility of precise soil erosion monitoring by measuring the bulk density is discussed. The results of SPSS analysis showed that there was a significant negative correlation between the bulk density and soil erosion. With the increase of the bulk density, the soil erosion decreased obviously, and the existence of this correlation was not affected by both the rainfall intensity and the slope of the sediment A factor effect. Using the data analysis method, the relationship between the weight and soil erosion was established. However, it is still necessary to carry out a large number of tests to monitor the amount of soil erosion caused by the development and construction projects by this method, which is the focus of the study in the future.