[1]ZHAO Dongmei,JIAO Yuanmei,QIU Yingmei,et al.Assessment on Landslide Susceptibility of the Core Area of Hani Race Terraces Heritage Site Maximum Entropy Model[J].Research of Soil and Water Conservation,2020,27(04):392-399.
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Assessment on Landslide Susceptibility of the Core Area of Hani Race Terraces Heritage Site Maximum Entropy Model
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 04
Page number:
392-399
Column:
目次
Public date:
2020-06-20
- Title:
- Assessment on Landslide Susceptibility of the Core Area of Hani Race Terraces Heritage Site Maximum Entropy Model
- Keywords:
- landslide; susceptibility assessment; ROC-AUC; GIS; maxEnt model
- CLC:
- P642.22; X43
- DOI:
- -
- Abstract:
- Effectively and accurately modelling landslide susceptibility is of significant and practical significance for landslide disaster risk management and land use planning. In previous studies, the maximum entropy model(maxEnt)has been widely used in the field of ecology due to avoiding model over-fitting, but is seldom used in landslide susceptibility research. We take the core area of Hani Race Terraces Heritage Site of Yuanyang County as the research site, and select 15 environmental variables including the altitude, slope, aspect, surface roughness, plane and section curvature, topographic humidity index, distance from water system, fault, road, average annual rainfall(AMR), residential density and normalized vegetation index and category data such as land use and lithology as indicators of landslide susceptibility. The landslide susceptibility in the heritage area was evaluated by combing with maxEnt and GIS technology. Furthermore, the accuracy of model was validated by the area under the receiver operating characteristic curve(ROC-AUC). The results show the maxEnt model has high accuracy(the ROC-AUC of the training and test data are 0.895 and 0.739, respectively); the main environmental factors affecting the landslide disaster are the distance from the road, AMR, distance from the settlement, and land use; additionally, landslide density analysis indicates that the zone of normal distribution theory and expert experience method are reasonable; the 21.75 percent of the total area is very high and high landslide susceptibility areas, which mainly distributes in the areas with relatively concentrated human settlements. These research results can provide new avenues for disaster monitoring and prevention in the heritage site.
- References:
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Last Update:
2020-07-09