生态科学2018，Vol.37Issue(3)：96-106,11.DOI:10.14108/j.cnki.1008-8873.2018.03.013
青藏高原高寒生态区生态系统脆弱性时空变化及驱动机制分析
Analysis of spatial and temporal changes and its driving mechanism of ecological vulnerability of alpine ecosystem in Qinghai Tibet Plateau
摘要
Abstract
Under the influence of global climate change and human activities, the fragile ecosystem in the Qinghai Tibet Plateau is undergoing profound changes. In this study, fully considering the ecological environment background characteristics (freeze-thaw erosion, salinization, soil water erosion), we introduced the extreme climate events factor (extreme high temperature and low temperature, extreme precipitation) and human disturbance factors to construct the evaluation system of fragile ecosystem in the Tibetan Plateau, and then the temporal and spatial patterns of ecosystem vulnerability changes and its driving factors were analyzed. The results showed that the ecosystem vulnerability of alpine ecological fragile region in Qinghai-Tibet Plateau belonged to the level of moderate vulnerability. The spatial distribution pattern showed an increasing trend from southeast to northwest. During 2000-2013, the ecosystem vulnerability firstly increased and then decreased. There was a significant correlation between the spatial and temporal variation patterns of ecosystem vulnerability and topography, climate (temperature, precipitation), and population density. The research results can provide decision support for the protection and restoration of the fragile ecological environment in Qinghai Tibet plateau.关键词
生态系统脆弱性/气候变化/青藏高原/人类活动/驱动机制Key words
ecosystem vulnerability/climate change/Tibetan Plateau/human activities/driving mechanism分类
社会科学引用本文复制引用
郭兵,孔维华,姜琳,范业稳..青藏高原高寒生态区生态系统脆弱性时空变化及驱动机制分析[J].生态科学,2018,37(3):96-106,11.基金项目
华东师范大学地理信息科学教育部重点实验室开放基金项目(KLGIS2017A02) （KLGIS2017A02）
武汉大学测绘遥感信息工程国家重点实验室开放基金项目(17I04) （17I04）
山东省自然科学基金项目(ZR2018BD001) （ZR2018BD001）
地理国情监测国家测绘地理信息局重点实验室开放基金项目(2016NGCM02) （2016NGCM02）
区域开发与环境响应湖北省重点实验室开放基金项目(2017(B)003) （2017(B）
山东理工大学博士科研启动基金项目(4041/416027) （4041/416027）
资源与环境信息系统国家重点实验室开放基金项目资助 （）
