贫困区县干旱灾害与贫困度耦合关系分析

Analysis of Coupled Relationship between Drought Disaster and Poverty in Poor Areas

选取宁夏六盘山贫困区的五个贫困区县作为研究区域,以统计资料为基础数据,运用因子分析法和主成分分析方法,建立干旱度与贫困度的综合指标体系,分析该区近十年干旱度和贫困度的变化规律,及干旱度与贫困度的耦合关系。结果显示:宁夏六盘山区十年间的干旱度总体上比较高,各县区贫困度随着时间的演进呈下降趋势;贫困度与干旱度呈现较强的耦合关系。由于研究区处于生态脆弱区域,且易造成干旱灾害与贫困的恶性循环,需考虑灾害风险管理、预防及灾后恢复的综合防灾机制。

Five poverty-stricken counties in the poor areas of Liupan Mountain in Ningxia were selected as research areas. Factor analysis and principal component analysis were used to establish a comprehensive indicator system for drought and poverty. Additionally, the changes of drought and poverty and the coupling relationship between drought and poverty in the past decade were analyzed. The results showed that: the drought degree in the Liupan Mountain area of Ningxia was generally high in the past decade. Secondly, the poverty level of each county had a downward trend with the evolution of time. Thirdly, there was a strong coupled relationship between poverty and drought disaster. Since the study area was prone to a vicious circle of drought and poverty, it was necessary to consider a comprehensive disaster prevention mechanism for disaster risk management, prevention and disaster recovery.