摘要
干旱带来的环境影响及经济损失,阻碍了地区的可持续发展。开展干旱脆弱性评价是合理制定区域规划与管理措施的前提条件。然而,国内目前鲜有以省或自治区为研究区域,以市级行政区域为尺度的自然-社会-经济耦合的干旱脆弱性研究。根据IPCC提出的干旱脆弱性评价模型,选取19个指标,在3个维度上(暴露度、敏感度和适应能力)对内蒙古自治区的12个盟市开展了干旱脆弱性评价。采用熵值法确定各指标权重,并用综合指数法和系统分类法计算干旱脆弱性指数并进行分类。研究结果表明,内蒙古自治区的干旱脆弱性呈现由东向西递减的趋势,与干旱脆弱性相关性最强的三个指标分别是第一产业GDP比例、人均可支配收入和第一产业从业人员比例。导致盟市干旱脆弱性的主要贡献因素为人口与人力因素和生态与水资源因素。减缓内蒙古自治区干旱脆弱性可以从加强草原保护建设和管理,合理规划盟市建设,减少人口的集中分布,调整产业结构,提供更多的非农牧就业岗位,加强职业技能培训,完善金融服务和医疗服务等方面入手,从而促进干旱区自然生态和社会经济的可持续发展。
The environmental impact and economic loss caused by drought has been an impediment to the sustainable development of local areas. Carrying out drought vulnerability assessment is an indispensable part of sustainable development assessment. However, there are few research results on the coupled drought vulnerability of nature, society and economy at the municipal administrative scale in the province or autonomous region. Based on the drought vulnerability assessment model proposed by IPCC, 19 indicators were selected from three dimensions(exposure, sensitivity and adaptive capacity) to build an indicator system to evaluate the drought vulnerability of 12 leagues and cities in Inner Mongolia. Data was collected from Inner Mongolia Statistical Yearbooks and Inner Mongolia Water Resources Bulletin. Evapotranspiration(ET) was provided in the MOD16 A2 product and precipitation(P) was provided by China Meteorological Data Service Center. The entropy method is used to determine the weight of each indicator, and the comprehensive index method and systematic classification method are used to calculate and classify the drought vulnerability index. The main outputs of this empirical analysis include vulnerability index scores, class, and maps that illustrate differences in geographical and social characteristics across Inner Mongolia. The results show that the drought vulnerability of the Inner Mongolia Autonomous Region presents a decreasing trend from east to west. The proportion of primary industry GDP, per capita disposable income and proportion of primary industry employees have high correlation with drought vulnerability. The main contributors to drought vulnerability in the cities are population and manpower factors, ecological and water resources factors. Reducing drought vulnerability in the Inner Mongolia Autonomous Region can be achieved by strengthening the protection and construction of grasslands, rationally planning the construction of cities, reducing the concentration of the population, adjusting the indust
作者
贾元童
崔骁勇
刘月仙
刘雅莉
许聪
李通
冉沁蔚
王艳芬
JIA Yuantong;CUI Xiaoyong;LIU Yuexian;LIU Yali;XU Cong;LI Tong;RAN Qinwei;WANG Yanfen(Sino-Danish College,University of Chinese Academy of Sciences,Beijing 101408,China;Sino-Danish Center for Education and Research,Beijing 101408,China;College of Life Sciences,University of Chinese Academy of Sciences,Beijing 101408,China;College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 101408,China)
出处
《生态学报》
CAS
CSCD
北大核心
2020年第24期9070-9082,共13页
Acta Ecologica Sinica
基金
中国科学院国际合作项目(121311KYSB20170004)。
关键词
干旱
脆弱性
人地耦合
内蒙古
drought
vulnerability
human-land coupling
Inner Mongolia
