| 三维激光扫描仪在坡面土壤侵蚀研究中的应用 |
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| 引用本文： | 肖海,夏振尧,朱晓军,杨悦舒,李瑶.三维激光扫描仪在坡面土壤侵蚀研究中的应用[J].水土保持通报,2014(3):198-200. |
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| 作者姓名： | 肖海 夏振尧 朱晓军 杨悦舒 李瑶 |
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| 作者单位： | 三峡大学土木与建筑学院, 湖北宜昌 443002;三峡地区地质灾害与生态环境湖北省协同创新中心, 湖北宜昌 443002;三峡大学水利与环境学院, 湖北宜昌 443002;三峡大学土木与建筑学院, 湖北宜昌 443002;三峡大学土木与建筑学院, 湖北宜昌 443002 |
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| 基金项目： | 国家自然科学基金项目"三峡库区紫色土的植物根系加固效应与机制研究"(41202250) |
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| 摘 要： | 采用人工模拟降雨,在20°的坡面土槽上进行了3场降雨强度为60,90和105mm/h的降雨。通过使用三维激光扫描仪对每场降雨前后的坡面形态进行扫描,定量分析坡面土壤侵蚀量。结果表明,径流量及侵蚀量随着降雨强度的增加而增加,而且降雨强度增加对侵蚀量的影响大于对径流量的影响。使用三维激光扫描仪在降雨前后对坡面进行扫描,所得计算侵蚀量误差较小。3次计算误差分别为0.872%,9.349%和4.495%,计算误差均在10%以内。使用该仪器同时能够很直观地观察坡面侵蚀部位及破碎情况。使用三维激光扫描仪能够快速、精确地计算出坡面侵蚀体积及侵蚀量,同时能够很直观地观测到侵蚀的空间分布。
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| 关 键 词： | 土壤侵蚀 三维激光扫描仪 坡面 |
| 收稿时间： | 2013/6/27 0:00:00 |
| 修稿时间： | 2013/7/18 0:00:00 |
Application of Three-dimensional Laser Scanner on Research of Slope Soil Erosion |
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| XIAO Hai,XIA Zhen-yao,ZHU Xiao-jun,YANG Yue-shu and LI Yao.Application of Three-dimensional Laser Scanner on Research of Slope Soil Erosion[J].Bulletin of Soil and Water Conservation,2014(3):198-200. |
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| Authors: | XIAO Hai XIA Zhen-yao ZHU Xiao-jun YANG Yue-shu and LI Yao |
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| Institution: | College of Civil Engineering & Architecture, China Three Gorges University, Yichang, Hubei 443002, China;Collaborative Innovation Center for Geo-hazards and Eco-environment in the Three Gorges Area, Yichang, Hubei 443002, China;College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, Hubei 443002, China;College of Civil Engineering & Architecture, China Three Gorges University, Yichang, Hubei 443002, China;College of Civil Engineering & Architecture, China Three Gorges University, Yichang, Hubei 443002, China |
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| Abstract: | At three artificial rainfall intensities of 60, 90 and 105 mm/h, soil erosion on a slope of 20° was investigated using a three-dimensional laser scanner before and after rainfall. Results show that the amounts of runoff and erosion increased with the increasement of rainfall intensity, while the influence of increasing rainfall intensity on soil erosion is much larger than that on runoff. The calculated errors for the data of the three rainfall intensities using the three-dimensional laser scanner before and after rainfall were 0.872%, 9.349% and 4.495%, respectively, being less than 10%. At the same time, the eroded position and fragmentation could be observed intuitively. Using the three-dimensional laser scanner is able to calculate the volume and amount of soil erosion in a quick and accurate way, and observe the spatial distribution of soil erosion visually. |
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| Keywords: | soil erosion three-dimensional laser scanner slope |
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