基于模糊物元模型的渭北工业区地下水资源承载力评价

Evaluation of carrying capacity of groundwater resources in Weibei industry zone based on fuzzy matter-element model

建立了模糊物元模型,选取12个评价指标,参照其他文献并结合研究区实际情况进行等级划分,采用熵值法确定各评价指标权重,以7个被评价样本与标准样本之间的贴近度表征来评价样本的优劣,从而得到研究区地下水资源承载力评价结果。经计算,阎良、临潼、高陵、渭北工业区及Ⅰ级、Ⅱ级、Ⅲ级与标准样本之间的欧式贴近度分别为0.5359、0.7538、0.5926、0.6556、0.8635、0.6893、0.5508。阎良的地下水资源承载力处于Ⅲ级,地下水资源承载力弱,地下水处于高度利用状态,开采潜力较小;其余地区地下水资源承载力均处于Ⅱ级,地下水资源承载力一般,地下水处于中度利用状态,尚有一定开采潜力。通过比较验证,本研究的模糊物元模型评价结果合理可行,该方法简便实用。

Based on the establishment of fuzzy matter-element model ,the paper selected 12 evaluation in-dexes , refered other documents and combined the actual situation of the study area to grade , and used the entropy method to calculate the evaluation index weight .The closeness between seven evaluated and standard samples was used to indicate the merits of evaluated samples so as to get the evaluated result of groundwater resources carrying capacity .Through calculating , the closeness between Yanliang , Lintong, Gaoling, Weibei industrial area,Ⅰ,Ⅱ,Ⅲgrade and the standard samples are 0.5359,0.7538,0.5926, 0.6556,0.8635,0.6893,0.5508.The groundwater resources carrying capacity of Yanliang is in gradeⅢ, the carrying capacity of groundwater resources is weak .The groundwater is in the state of high utaliza-tion and has small exploitation potential;The groundwater resources carrying capacity of other areas is in grade Ⅱand belong to general .The groundwater is in the state of moderate use and has a certain potential of exploitation .By comparing and verifying ,the paper showes that the evaluated results of fuzzy matter-el-ement model is reasonable and practicable .The method is simple and practical .