基于改进白化权函数的资源型城市土地利用系统健康灰色聚类评价

目的]对资源型城市土地利用系统进行健康评价,为资源型城市协调土地利用,推进社会经济稳定发展提供借鉴。方法]运用的中心点混合白化权函数的灰色聚类模型,从系统的结构、功能、效益三方面构建评价指标体系,分析黑龙江省大庆市2005—2014年土地利用系统健康水平及趋势。结果](1)大庆市土地利用系统健康水平逐步由"不健康"向"较健康"演变。(2)建设用地比例、人均水资源量、地均石油工业产值、土地市场化程度等成为制约大庆市土地利用系统健康水平提升的关键因素。结论]混合中心点白化权函数的灰色聚类模型为土地利用系统健康评价提供新的评价标准,克服单指标评价与综合结果的不相容性,适用于土地利用系统健康评价。大庆市应进一步挖掘建设用地利用潜力,优化土地利用布局,积极涵养水源,深化土地市场改革,不断提升土地利用系统健康水平。

Health Assessment of Land Use System on Resource-typed City Based on Grey Clustering Model

Objective] Health of land use system on resource-typed city was assessed to provide reference to coordinate land use and promote social and economic development.Methods] The center of the mixed whitenization weight function of grey clustering model was used to build evaluation index system from the structure,function and efficiency.Upon that health condition and trend of land use system in Daqing City of Heilongjiang Province from 2005 to 2014 were analyzed.Results] (1) Health level of land use system in Daqing City evolved gradually from "unhealthy" to "healthier".(2) The proportion of construction land,the amount of per capita water resources,the average industrial output value of land,the degree of land marketization were the key factors restricting the health of land use system in Daqing City.Conclusion] Grey clustering model plus center whiten function provided new evaluation criteria for land use system health assessment.This consolidated method exhibited good compatibility than the one of single index with regard to land use system health assessment.Some aspects are needed to be paid attention for Daqing City:to broaden the potential of construction land utilization,to optimize the land use layout,to actively conserve water resources,to enhance the reform of land market,and to continuously improve the health of land use system.