• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Du, Yueyue (Du, Yueyue.) | Peng, Jian (Peng, Jian.) | Zhao, Shiquan (Zhao, Shiquan.) | Hu, Zhichao (Hu, Zhichao.) | Wang, Yanglin (Wang, Yanglin.)

收录:

EI Scopus PKU CSCD

摘要:

Taking Dali Bai Autonomous Prefecture as an example, the study assesses ecological risk of landslide geological disasters in terms of risk stressors, risk receptors, exposure and response process, and ecological end points. To be specific, firstly, the information method is used to evaluate the hazard of landslide disasters. Secondly, ecological vulnerability is evaluated based on landscape pattern metrics. Thirdly, the potential ecological damage of the study area is identified according to the ecosystem service assessment. Finally, the ecological risk of landslide disasters is comprehensively evaluated, and the partitions of risk precaution and governance are distinguished. The results show that, (1) 10 aspects including geography, geology and human activity factors, such as elevation less than 1800 m, slope within 15°-25°, NDVI less than 0.31, are the best information combination for inducing landslide geographical disasters in Dali Prefecture. As to the hazard of landslide geological disasters, the whole Dali prefecture is generally at medium and high risk levels of landslide and debris flow disasters. And the risk of northwest is lower than that of southeast; (2) the areas with high ecological vulnerability are mainly concentrated in the south of the Red River watershed, southeast of the Jinsha River watershed and the central part of the Lancang River watershed. Watersheds with low ecological damage have relatively poor water conservation service and food supply service. Watersheds with medium ecological damage have obvious advantage in providing net primary production and soil conservation service. Watersheds with high ecological damage would have relatively strong food supply and water conservation service; (3) the ecological risk of landslide disasters in Dali Prefecture presented 3 levels and 8 types of risk structures. Then 367 small watersheds were divided into 4 partitions of risk prevention and governance strategies, i.e., risk avoidance and warning areas, ecological protection and restoration areas, risk avoidance as well as ecological protection areas, and natural adaption areas. © 2016, Science Press. All right reserved.

关键词:

Damage detection Disaster prevention Disasters Ecosystems Food supply Geology Hazards Landslides Risk assessment Rivers Soil conservation Water conservation Watersheds

作者机构:

  • [ 1 ] [Du, Yueyue]Laboratory for Earth Surface Process, College of Urban and Environment Sciences, Peking University, Beijing; 100871, China
  • [ 2 ] [Peng, Jian]Laboratory for Earth Surface Process, College of Urban and Environment Sciences, Peking University, Beijing; 100871, China
  • [ 3 ] [Peng, Jian]School of Urban Planning and Design, Shenzhen Graduate School, Peking University, Shenzhen; Guangdong; 518055, China
  • [ 4 ] [Zhao, Shiquan]School of Urban Planning and Design, Shenzhen Graduate School, Peking University, Shenzhen; Guangdong; 518055, China
  • [ 5 ] [Zhao, Shiquan]Department of Geography and Resource Management, The Chinese University of Hong Kong, Hong Kong
  • [ 6 ] [Hu, Zhichao]Laboratory for Earth Surface Process, College of Urban and Environment Sciences, Peking University, Beijing; 100871, China
  • [ 7 ] [Hu, Zhichao]College of Architecture and Urban Planning, Beijing University of Technology, Beijing; 100124, China
  • [ 8 ] [Wang, Yanglin]Laboratory for Earth Surface Process, College of Urban and Environment Sciences, Peking University, Beijing; 100871, China

通讯作者信息:

  • [wang, yanglin]laboratory for earth surface process, college of urban and environment sciences, peking university, beijing; 100871, china

电子邮件地址:

查看成果更多字段

相关关键词:

来源 :

Acta Geographica Sinica

ISSN: 0375-5444

年份: 2016

期: 9

卷: 71

页码: 1544-1561

被引次数:

WoS核心集被引频次: 0

SCOPUS被引频次: 32

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 2

在线人数/总访问数:1411/2904277
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司