[Background] A lots of side slopes and dumped soil can be generated in production and construction projects, which is typical man-made accelerated erosion. It is a hot topic in soil erosion research due to the increasing seriousness of the damage to ecological environment. There were some differences in the mechanism of the erosion from original one, thus we viewed the research results in the erosion of side slope and dumped soil, from the influence factors of rainfall runoff, soil properties, topography and landforms, and protective measures of soil and water conservation, then put forward the deficiency of current research and future research direction. [ Methods] We searched the relevant databases, journals and books such as Web of Science, CNKI, Journal of Soil and Water Conservation, Science of Soil and Water Conservation, Beijing Soil Loss Equation, et al, then collected all literatures from 4 aspects of rainfall runoff, soil properties, topography and landforms factor and protective measures of soil and water conservation. [Results] 1) From the aspect of rainfall runoff conditions, there was a linear response relationship between erosion (total erosion and erosion rate) and rainfall factors (rainfall amount and intensity); gully erosion would be emerged in the slope with the increase of rainfall time, which resulted in the fluctuation of erosion and flow rate over time; the correlation between the total amount of runoff and erosion was significant, and the erosion was related with the hydrodynamic parameters of runoff. 2) On the aspect of soil properties, gravel quality affected the characteristics of slope surface erosion, and concurrently changed the slope runoff pattern, which prolonged the interval of reaching stabile state of the runoff; the physical properties of soil determined the occurrence of slope runoff, and affected the water infiltration capacity of slope soil; soil additives promoted the formation process of soil aggregate, and enhanced the slope surface infiltration and water-holding capacity. 3) Regarding the aspect of topography and landforms, a critical slope existed to soil erosion, i. e. , the soil erosion increased with slope when below the critical slope, and the slope erosion kept in a stable state while above the critical slope; there was no significant linear relationship between erosion and slope length, the erosion increased and caused the space differentiation in the slope with surface concave and convex shape, or the top platform. 4) Considering the aspect of protective measures of soil and water conservation, there was small amount of runoff and sediment yield in the slope with large vegetation coverage, or with vegetable and engineering protection measures. [ Conclusions] It has been well documented about the single dynamic condition of erosion and the factors affecting erosion. However, there are few systematic studies on the dynamic conditions of multiple erosions. It is still poorly reported about the mixed dumped soil erosion and artificial excavation side slope erosion. Moreover, further study remains to be conducted on the quantitative comparison between natural rainfall and simulated tests.At last, we prospect the contents and direction of the future research in the side slope and dumped soil erosion in production and construction projects.
晏伟明 , 谢颂华, 刘苑秋, 邓文平, 黄鹏飞, 郑太辉. 生产建设项目边坡及弃土侵蚀影响机制研究进展[J]. 中国水土保持科学, 2016, 14(4): 142-152.
Yan Weiming, Xie Songhua, Liu Yuanqiu, Deng Wenping, Huang Pengfei, Zheng Taihui. Research progress on the erosion mechanism of side slope and dumped soil in production and construction projects. SSWC, 2016, 14(4): 142-152.