土地资源可持续利用的评价模型
（1） 评价指标的量化公式：
当x为正作用指标时：
当x为负作用指标时：
式中，C为刻画模糊度的常数。
（2） 指标量化的综合评价模型：
式中，
是第i个子目标的权重；rj是第j个单项因素的权重；aj是第j个单项指标的量化指标值；U为区域土地资源可持续利用综合水平指标。
（3） 可持续利用障碍诊断模型：
式中，rj为第j项单项因素权重，
是第j项单项因素所属的第i个子目标权重；
，aj为单项因素评估值；
。
参考文献：
彭补拙，安冬旭，陈浮等：长江三角洲土地资源可持续利用研究。自然资源学报，2001，16（4）
According to the status and function of economic and natural attributes of urban land in the socio-economic activities, the use value of the land is analyzed synthetically, the regional differences of land quality are explained, the urban land level is assessed, and the land level is selected, Point information and assessment methods, respectively, to calculate the commercial, residential river industrial land base land price, for the rational use of urban land to provide the basis.
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