LI Xiongfeng,YU Hongming,LI Ya,et al.The Partition of Severity Evaluation in Soil Erosion Based on the Hierarchy Analysis and Extension Theory[J].Research of Soil and Water Conservation,2015,22(06):24-29.
基于层次分析与可拓理论的水土流失严重程度分区评价
- Title:
- The Partition of Severity Evaluation in Soil Erosion Based on the Hierarchy Analysis and Extension Theory
- Keywords:
- Jiaozuo City; analytic hierarchy process; soil erosion; partition; evaluation; severity evaluation; the extension theory
- 分类号:
- S157.1
- 摘要:
- 为研究可拓理论在水土流失严重程度分区中的应用，在建立科学合理的边坡水土流失评价指标基础上，将层次分析法与可拓评价法相结合，建立了水土流失严重程度分区评价的物元模型。根据各影响因子建立层次分析判别矩阵，得出各因子的权重与影响度。并以河南省焦作市不同地区的水土流失问题为例，在分析研究区7个水土流失影响因素和危害后果的基础上，提出了边坡水土流失严重程度分区评价指标及分级标准。结果表明，水利部土壤侵蚀强度分级结果与本文分级方法所得结果一致，基于层次分析的可拓评判方法运用于水土流失严重程度分区的评价是合理可行的，能够较好地反映各因素对该地区边坡水土流失问题的影响程度并且判别其危害等级。该文将可拓层次分析法（EAHP）首次应用到水土流失的严重程度分区评价上，为水土流失危险性分区研究提供了一条新的分析思路。
- Abstract:
- In order to examine the extension theory in the application of soil and water loss severity partition, aiming at the complexity of the slope soil erosion in mines, and establishing a scientific and rational evaluation index system of slope soil and water loss on the basis of the analytic hierarchy process (AHP) and extension evaluation method, we established the severity assessment matter-element model of soil and water loss. According to each influence factor, the discriminant matrix of analytic hierarchy was established, the weight of each factor and the effect was concluded. Different parts of the soil and water loss problem were taken as an example in Jiaozuo City in He’nan Province. On the analysis of the seven factors affecting soil erosion in the study region and on the basis of harmful consequences, the slope soil erosion severity partition evaluation index and classification standard were proposed. Results showed that the soil erosion intensity classification result of Ministry of Water Resources was consistent with the method of the grading results, extension evaluation method based on hierarchical analysis applied to the soil and water loss severity partition was feasible, and could reflect the impact on the region soil and water loss of slope degree well. It was the first time that the hierarchy analysis and extension theory was applied to the severity of soil erosion assessment, which provided the new analysis method for the study of the soil and water loss danger division.
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备注/Memo
收稿日期:2015-04-20;改回日期:2015-05-07。
基金项目:河南省科技厅科技攻关计划项目（122102310477）
作者简介:李雄峰(1991-),男,湖南郴州人,硕士研究生,研究方向为地质灾害设计及防治。E-mail:cug176_lxf@163.com