基于GIS的低山丘陵区宜耕未利用地开发潜力评价及分区——以重庆市南川区为例

发布时间：2018-02-13 00:04

本文关键词： GIS 低山丘陵区未利用地宜耕地适宜性评价重庆市南川区　出处：《江苏农业科学》2016年05期 　论文类型：期刊论文

【摘要】：以重庆市南川区为例,以地理信息系统(GIS)空间分析技术为基础,结合层次分析法(AHP)和特尔菲法(Delphi),构建宜耕未利用地开发适宜性评价模型、补充耕地潜力模型,对重庆市低山丘陵区宜耕未利用地开发适宜性与潜力分区进行分析。结果表明,研究区宜耕未利用地开发适宜性分为3个等级,即适宜、比较适宜、不适宜,面积分别为169.32、627.18、4 343.47 hm~2,分别占研究区总面积的3.29%、12.20%、84.51%;研究区宜耕未利用地实际开发潜力为796.5 hm~2,预计可新增耕地面积566.06 hm~2。潜力分区结果表明,研究区可划分为4个潜力区和1个无潜力区,其中,Ⅰ级潜力区实际开发潜力362.63 hm~2,可新增耕地258.23 hm~2;Ⅱ级潜力区实际开发潜力286.72 hm~2,可新增耕地203.59 hm~2;Ⅲ级潜力区实际开发潜力100.47 hm~2,可新增耕地71.32 hm~2;Ⅳ级潜力区实际开发潜力46.68 hm~2,可新增耕地32.92 hm~2。
[Abstract]:In Nanchuan District of Chongqing city as an example, based on geographic information system (GIS) spatial analysis technology as the foundation, combined with the analytic hierarchy process (AHP) and Delphi method (Delphi), construction of the unused land development suitability evaluation model, the model of cultivated land potential, the hilly area of the unused land in Chongqing City Development Suitability and potential partition are analyzed. The results show that the study area of the unused land development suitability is divided into 3 grades, namely suitable, suitable, unsuitable area were 169.32627.18,4 and 343.47 hm~2, respectively, the total area of 3.29%, 12.20%, 84.51%; the unused land in study area the actual development potential is 796.5 hm~2, is expected to be 566.06 hm~2. partition results of new arable land potential showed that the study area can be divided into 4 potential areas and 1 non potential region, among them, grade I potential area the actual development potential of 362.63 hm~2, added 258.23 hm~ of arable land The 2, second level potential area has 286.72 hm~2 of potential development, 203.59 hm~2 of newly cultivated land, 100.47 hm~2 of potential potentiality in the third level potential area, 71.32 hm~2 of newly cultivated land, 46.68 hm~2 of potential development potential of the fourth level potential area, 32.92 hm~2. of new cultivated land can be added.

【作者单位】：西南大学资源环境学院;
【基金】：国家自然科学基金(编号:41101568)
【分类号】：F323.211

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