| 宁夏回族自治区彭阳县地质灾害危险性评价 |
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| 引用本文： | 毛正君,倪万魁,杨晓华,刘海松. 宁夏回族自治区彭阳县地质灾害危险性评价[J]. 水土保持通报, 2011, 31(3): 245-250 |
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| 作者姓名： | 毛正君 倪万魁 杨晓华 刘海松 |
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| 作者单位： | 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 |
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| 基金项目： | 中国地质调查局项目“西北黄土高原区地质灾害详细调查”(1212010814013) |
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| 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。
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| 关 键 词： | 地质灾害 危险性评价 地理信息系统 信息量模型 彭阳县 |
| 收稿时间： | 2010-09-21 |
| 修稿时间： | 2010-10-29 |
Assessment of Geological Hazards in Pengyang County of Ningxia Hui Autonomous Region |
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| MAO Zheng-jun,NI Wan-kui,YANG Xiao-hua and LIU Hai-song. Assessment of Geological Hazards in Pengyang County of Ningxia Hui Autonomous Region[J]. Bulletin of Soil and Water Conservation, 2011, 31(3): 245-250 |
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| Authors: | MAO Zheng-jun NI Wan-kui YANG Xiao-hua LIU Hai-song |
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| Affiliation: | 1.School of Highway,Chang’an University,Xi’an,Shaanxi 710064,China;2.School of Geology Engineering and Geomatics,Chang’an University,Xi’an,Shaanxi 710054,China) |
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| 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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| Keywords: | geological hazard hazard assessment geographical information system（GIS） information value model Pengyang County |
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