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首页> 外文期刊>土壤圈（英文版） >An Indicator System for Assessing Soil Erosion in the Loess Plateau Gully Regions:A Case Study in the Wangdonggou Watershed, China
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An Indicator System for Assessing Soil Erosion in the Loess Plateau Gully Regions:A Case Study in the Wangdonggou Watershed, China

机译：黄土高原沟壑区土壤侵蚀评价指标体系研究-以望东沟流域为例。

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摘要

The Wangdonggou Watershed on the Loess Plateau in China was selected as the study area to develop a model for soil erosion assessments. Using the data collected at 20 sampling sites all tentatively selected indicators were assessed against their corresponding erosion intensity through a correlation analysis. Eight highly correlated indicators were then chosen for the soil erosion assessment. In addition, threshold limits to delineate the class size for these indicators and weights to rank them were determined. Next, a grading model incorporating the selected indicators class rating and their associated weights was developed and verified by an on site evaluation of the soil erosion intensity in the study area. Results of the verification showed that the overall accuracy of the indicator system for assessing soil erosion in the Loess Plateau gully regions could reach 85%.
机译：黄土高原的王洞沟流域被选为研究区域，以开发土壤侵蚀评估模型。使用在20个采样点收集的数据，通过相关性分析，对照其相应的侵蚀强度评估了所有初步选择的指标。然后选择了八个高度相关的指标进行土壤侵蚀评估。此外，确定了界定这些指标的班级规模的阈值限制和对它们进行排名的权重。接下来，开发并结合了所选指标类别等级及其相关权重的分级模型，并通过对研究区域内土壤侵蚀强度的现场评估进行了验证。验证结果表明，黄土高原沟壑区土壤侵蚀评价指标体系的总体准确性可以达到85％。

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