[1]巩杰,赵彩霞,王合领,等.基于地质灾害的陇南山区生态风险评价——以陇南市武都区为例[J].山地学报,2012,(05):570.
　GONG Jie,ZHAO Caixia,WANG Heling,et al.Ecological Risk Assessment of Longnan Mountainous Area Based on Geological Disasters——A Case Study of Wudu[J].Mountain Research,2012,(05):570.
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基于地质灾害的陇南山区生态风险评价——以陇南市武都区为例()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2012年05期
页码:
570
栏目:
山地学报
出版日期:
2012-01-01

文章信息/Info

Title:
Ecological Risk Assessment of Longnan Mountainous Area Based on Geological Disasters——A Case Study of Wudu
作者:
巩杰;赵彩霞;王合领;孙朋;谢余初;孟兴民;
兰州大学 西部环境与气候变化研究院，甘肃 兰州730000
Author(s):
GONG Jie; ZHAO Caixia; WANG Heling; SUN Peng; XIE Yuchu; MENG Xingmin
Research School of Arid Environment and Climate Change，Lanzhou University，Lanzhou 730000，China
关键词:
生态风险评价; 地质灾害; 景观格局; 陇南山区
Keywords:
ecological risk assessment; geodisasters; landscape pattern; Longnan mountainous area
分类号:
X141
文献标志码:
A
摘要:
陇南山区地质构造活动强烈,频繁的地质灾害对生态环境和生态安全构成严重威胁。分别以陇南市武都区的主要地质灾害(滑坡、泥石流和地震)和景观类型为风险源和受体,以景观结构指数和易损性指数作为评价指标,构建生态风险评价模型,进行生态风险特征评估。结果表明:武都区生态风险特征的分布主要受地质灾害风险分布和景观格局的影响,人类活动、植被覆盖度和海拔梯度也是重要的影响因素。极高风险区和高风险区主要集中分布在东江镇以东的白龙江沿岸及整个白龙江南岸、安化、马街、汉王和两水镇北部等地;低风险区和较低风险区主要分布在武都区东部和南部以及西部和西北部区域。基于景观结构的多风险源生态风险评价对于区域生态风险管理具有重要...
Abstract:
Longnan mountainous area was famous for its intensive geologic structure activity and frequent geodisasters which caused loss and threatening the local fragile ecological environment and security. In this paper，typical geological disasters (debris flow，landslide and earthquake) in Wudu and 6 landscape types (forestland，farmland，grassland，water area，constructed and residential land，unused land) were selected as risk sources and receptors separately，landscape pattern index and vulnerability index were considered as indicator for an ecological risk assessment model to evaluate the ecological risk of Wudu. The results showed that：1) the distribution of ecological risk levels was mainly caused by the risk distribution of geological disasters and landscape patterns. 2) human activities，vegetation coverage and elevation also affect risk distribution. 3) the extreme high and high risk areas distributed mainly in the south coast area of Bailongjiang river and east part of Dongjiang town along Bailongjiang river，and partly in Anhua，Majie，Hanwang and north of Liangshui；while the lower and low risk areas scattered primarily in the east and south of Wudu and partly in the west and northwest of Wudu. Ecological risk assessment with multirisk source and landscape pattern can be very useful for regional ecological risk management and environmental protection.

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备注/Memo

备注/Memo:
收稿日期(Received date)：2012-03-26；改回日期(Accepted) : 2012-05-26。
基金项目（Foundation item）：国家科技支撑计划课题——白龙江流域滑坡泥石流灾害区域监测与重大灾害预警技术研究与示范（2011BAK12B06）和国家自然科学基金委创新群体科学
基金项目——青藏高原和中东亚干旱区环境变化与地表过程研究(41021091)资助。\[National Key Technology Research and Development Program of the Ministry of Science and Technology of China：Study and demonstration of technology on regional monitoring and early warning of landslide and debris flow in the Bailongjiang River Basin；National Innovative Research Team Project of Natural Science Foundation of China：Environmental changes and surface physical processes in Qinghai-Xizang Plateau and Central-East Arid Asia (41021091).\]
作者简介（Biography）：巩杰（1975-），男，生态学博士，副教授，主要从事景观生态学、土地变化科学、恢复生态学和生态评价与规划研究。\[Jie Gong(1975-)，male，Ph D of ecology，Associate professor，his research interest includs landscape ecology，land change science，restoration ecology，ecological assessment and planning.\]E-mail：jgong@ lzu.edu.cn
更新日期/Last Update: 1900-01-01