典型黑土区建设占用耕地的时空配置效率研究

发布时间：2018-06-22 13:14

本文选题：建设占用耕地 + 黑土地资源　；参考：《资源开发与市场》2017年08期

【摘要】：通过ArcGIS和Spss技术平台构建相应模型,以吉林省长春市为研究区,分析了典型黑土区建设占用耕地的时空配置效率。结果表明:(1)2001—2014年长春市建设占用耕地部门间的配置存在过度化,过度占用耕地19268.34hm2,且存在一定程度的时空配置效率损失(其中,长春市本级辖区、双阳区与榆树市的时空配置效率较高,在20%以上;德惠市、九台市、农安县的时空配置效率较低,低于10%),因此应结合长春市生态服务功能与时空配置效率将建设用地指标进行科学调整。(2)长春市大量优质的黑土资源被占用,且土壤质量退化严重,黑土资源质量与数量的双重流失必然会对东北乃至我国粮食安全构成重要威胁。(3)计划性的建设用地指标配置、地方政府的行政博弈、边际效益的差异是建设占用耕地时空配置效率损失的主要原因。针对研究结果,提出相应对策,为提高我国典型黑土区建设占用耕地时空配置效率提供科学依据。
[Abstract]:Based on ArcGIS and SPSS technology platform, the spatial and temporal allocation efficiency of cultivated land occupied by construction in typical black soil area was analyzed, taking Changchun City, Jilin Province as the research area. The results are as follows: (1) the allocation of cultivated land between construction and occupation departments in Changchun City from 2001 to 2014 is excessive, and there is a certain degree of loss of space-time allocation efficiency. The space-time allocation efficiency of Shuangyang District and Yushu City is higher than 20%, while that of Dehui City, Jiutai City and Nong'an County is low. Therefore, the index of construction land should be scientifically adjusted in combination with the ecological service function and space-time allocation efficiency of Changchun. (2) A large number of high-quality black soil resources are occupied in Changchun, and the soil quality is degraded seriously. The dual loss of black soil resources quality and quantity will inevitably pose an important threat to the food security in Northeast China and even in China. (3) the planned allocation of land for construction purposes and the local government's administrative game. The difference of marginal benefit is the main reason for the loss of space-time allocation efficiency of cultivated land occupied by construction. In view of the research results, the corresponding countermeasures are put forward to provide scientific basis for improving the space-time allocation efficiency of cultivated land occupied by the construction of typical black soil areas in China.
【作者单位】：吉林大学地球科学学院;
【基金】：国家自然科学基金青年科学基金项目(编号:41201158)
【分类号】：F224;F323.211

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