长沙市耕地多功能评价及空间差异分析Evaluation and spatial difference analysis on the arable land multifunction in Changsha city
覃事娅,郭羽萱,唐常春
摘要(Abstract)：
针对耕地具有多种功能并存在一定空间差异问题,该文构建耕地多功能评价指标体系,对长沙市9个区县耕地的生产、生态、社会和文化功能进行评价,采用ArcGIS反映耕地功能的空间分布形态,并探讨了各区县耕地功能的空间分布特征。结果表明:长沙市各区县耕地各种功能的空间分布差异与其区位条件和自然条件的优劣紧密相关;在自然与经济条件的共同驱动下,各种功能空间分布随着远郊区—近郊区—中心城区—近郊区—远郊区的地域变化,耕地综合功能强弱依次表现为较强—强—弱—强—较强。根据各区县耕地各种功能的组成比重,将长沙市耕地功能划分为4种类型:生产型(望城区和岳麓区)、生态型(天心区、浏阳市、长沙县)、文化型(芙蓉区、开福区)和社会型(雨花区、宁乡县)。揭示了长沙市耕地各种功能的空间分异特征,可为制订科学的耕地功能利用布局方案提供理论依据。
关键词(KeyWords)： 耕地功能;GIS;空间分异;长沙市
基金项目(Foundation): 国家自然科学基金项目(41471109);; 湖南省自然科学基金项目(2017JJ2276)
作者(Author): 覃事娅,郭羽萱,唐常春
DOI: 10.16251/j.cnki.1009-2307.2018.11.009
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