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首页> 外文期刊>Journal of Mountain Science >Managing soil erosion potential by integrating digital elevation models with the southern China’s revised universal soil loss equation
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Managing soil erosion potential by integrating digital elevation models with the southern China’s revised universal soil loss equation

机译：通过将数字高程模型与中国南方修订的通用土壤流失方程相结合，管理水土流失潜力

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摘要

In China, many scenic and tourism areas are suffering from the urbanization that results from physical development of tourism projects, leading to the removal of the vegetative cover, the creation of areas impermeable to water, in-stream modifications, and other problems. In this paper, the risk of soil erosion and its ecological risks in the West Lake Scenic Spots (WLSS) area were quantitatively evaluated by integrating the revised universal soil loss equation (RUSLE) with a digital elevation model (DEM) and geographical information system (GIS) software. The standard RUSLE factors were modified to account for local climatic and topographic characteristics reflected in the DEM maps, and for the soil types and vegetation cover types. An interface was created between the Arcinfo software and RUSLE so that the level of soil erosion and its ecological risk in the WLSS area could be mapped immediately once the model factors were defined for the area. The results from an analysis using the Arcinfo-RUSLE interface showed that the risk value in 93 % of the expanding western part of the WLSS area was moderate or more severe and the soil erosion risk in this area was thus large compared with that in the rest of the area. This paper mainly aimed to increase the awareness of the soil erosion risk in urbanizing areas and suggest that the local governments should consider the probable ecological risk resulting from soil erosion when enlarging and developing tourism areas.
机译：在中国，许多风景名胜和旅游区都因旅游项目的有形发展而遭受城市化的困扰，从而导致植被被拆除，水不可渗透区域的创建，河道改造等问题。本文通过将修订后的通用土壤流失方程（RUSLE）与数字高程模型（DEM）和地理信息系统相集成，对西湖风景名胜区（WLSS）的土壤侵蚀风险及其生态风险进行了定量评估（ GIS）软件。对标准RUSLE因子进行了修改，以考虑DEM映射中反映的局部气候和地形特征，以及土壤类型和植被覆盖类型。在Arcinfo软件和RUSLE之间创建了一个接口，以便一旦为该区域定义了模型因子，就可以立即绘制WLSS区域中的土壤侵蚀水平及其生态风险。使用Arcinfo-RUSLE界面进行的分析结果表明，在WLSS扩展的西部地区93％的风险值为中等或更高，与其他地区相比，该地区的水土流失风险较大该地区。本文的主要目的是提高对城市化地区水土流失风险的认识，并建议地方政府在扩大和发展旅游区时应考虑水土流失可能带来的生态风险。

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