Assessment of Geological Hazards in Pengyang County of Ningxia Hui Autonomous Region

MAO Zheng-jun; NI Wan-kui; YANG Xiao-hua; LIU Hai-song

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Assessment of Geological Hazards in Pengyang County of Ningxia Hui Autonomous Region

- Assessment of Geological Hazards in Pengyang County of Ningxia Hui Autonomous Region
- Bulletin of Soiland Water Conservation Vol. 30, Issue 3, Pages: 245-250(2011)
- 作者机构：
  
  1. 长安大学公路学院,陕西,西安,710064
  2. 长安大学地质工程与测绘学院,陕西,西安,710054
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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MAO Zheng-jun, NI Wan-kui, YANG Xiao-hua, et al. Assessment of Geological Hazards in Pengyang County of Ningxia Hui Autonomous Region[J]. Bulletin of Soiland Water Conservation, 2011, 30(3): 245-250.
DOI：

MAO Zheng-jun, NI Wan-kui, YANG Xiao-hua, et al. Assessment of Geological Hazards in Pengyang County of Ningxia Hui Autonomous Region[J]. Bulletin of Soiland Water Conservation, 2011, 30(3): 245-250. DOI：

摘要

宁夏回族自治区彭阳县地质灾害十分发育。选取地理信息系统技术，选取坡度、高程、坡向、暴雨强度和距主干道距离5个评价指标，利用信息量模型进行了彭阳县地质灾害危险性评价。评价结果表明，地理信息系统和信息量模型能够很好地为地质灾害危险性评价服务，可用来解决过去地质灾害危险性评价中自动化程度低，效率不高，精度差等问题，从而实现地质灾害评价的动态化和科学化。所生成的宁夏回族自治区彭阳县地质灾害危险性评价图，可为当地政府进行区域城乡规划与选择适宜工程建设场地提供科学依据。

Abstract

Aiming at the frequently occurred geological hazards.a assessment was done in Pengyang County

Ningxia Hui Autonomous Region.China.The locations of geological hazards were identified in the county based on both remote sensing interpretation and field surveys.Using five assessment indices including slope gradient.elevation.slope aspect.rainfall intensity and the proximity to main roads.a map of geological hazard level was produced based on geographical information system(GIS) and the model of information value(IVM).The results show that the model of information value and GIS improved the automation level.efficiency.and accuracy of the assessment.and then facilitate the realization of dynamic and scientific assessment of geological hazards.The map of geological hazard assessment provides scientific references for urban and rural planning and identifying appropriate construction sites for local governments.

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