多功能视角下的山区乡村空间功能分异特征及类型划分

发布时间：2018-04-09 00:27

本文选题：多功能　切入点：山区　出处：《生态学报》2017年07期

【摘要】：以西部山区重庆乡村空间为研究对象,构建乡村空间多功能评价指标体系,将乡村空间多功能划分为农业生产功能、经济发展功能、生态保育功能、生态稳定性功能,社会保障居住家园功能五种子功能,采用熵权法定量核算2013年全市乡村空间功能值,运用GIS技术和Dagum基尼系数刻画重庆市不同地区乡村空间功能值地区差异特征,并划分了重庆市乡村空间多功能类型,研究结果表明:(1)山地型乡村地形复杂,景观类型多样,功能也极具多样性,研究区乡村空间除了生态稳定性功能外,其他各功能值具有显著的空间分异特征,有明显的空间集聚性。(2)Dagum基尼系数,是一种有效的技术方法,能够更为深入地刻画研究区乡村空间功能值地区间差异及区内差异特征。基尼系数测算及其分解结果显示,地区间差距是总体差距的主要来源,其贡献率都超过50%。(3)根据乡间空间多功能分布的差异性及山地乡村的特点和山区生态环境的脆弱性,将研究区乡村空间划分为农业生产-经济发展型,农业生产-人居生活型,人居生活-社会保障型,人居生活-经济发展型,水源涵养生态保育型,生态保育-经济发展型,生态保育-农业生产型,土壤保持生态保护型8种功能类型,能较好地体现地域特色,为科学健康的开发利用山地乡村空间土地资源提供有益借鉴,有利于区域协调可持续发展。
[Abstract]:Taking Chongqing rural space in western mountainous area as the research object, the multi-function evaluation index system of rural space is constructed. The multi-function of rural space is divided into agricultural production function, economic development function, ecological conservation function and ecological stability function.The five kinds of functions of social security residential homes were calculated by entropy weight method in 2013, and the differences of rural spatial function values in different areas of Chongqing were characterized by GIS technique and Dagum Gini coefficient.The multi-functional types of rural space in Chongqing are divided. The results show that the mountainous rural areas have complex terrain, various landscape types and extremely diverse functions. Besides the ecological stability function, the rural space in the study area is characterized by ecological stability.The other function values have distinct spatial differentiation characteristics and obvious spatial agglomeration. Dagum Gini coefficient is an effective technical method, which can more deeply describe the regional differences and regional differences of rural spatial function values in the study area.The results of Gini coefficient and its decomposition show that the gap between regions is the main source of the overall disparity, and its contribution rate is over 50%.) according to the difference of spatial multifunctional distribution in rural areas, the characteristics of mountainous villages and the fragility of ecological environment in mountainous areas, the Gini coefficient is the main source of the gap.The rural space of the study area is divided into three types: agricultural production-economic development type, agricultural production-human settlements type, human settlements life-social security type, human living-economic development type, water conservation ecological conservation type, ecological conservation-economic development type.Ecological conservation-agricultural production type, soil conservation ecological protection type 8 functional types, can better reflect the regional characteristics, for the scientific and healthy development and utilization of rural land resources in mountainous areas, provide a useful reference.It is conducive to regional coordinated and sustainable development.
【作者单位】：西南大学地理科学学院;西南大学资源环境学院;重庆第二师范学院;
【基金】：国家水体污染控制与治理科技重大专项课题:三峡库区及上游流域农村面源污染控制技术与工程示范(2012ZX07104-003) 中央高校基本业务费专项资金资助(XDJK2016C120)
【分类号】：F327;P208

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