基于主成分分析法的灌区地下水资源承载力评价

Evaluation on Carrying Capacity of Ground Water in Irrigation Districts Based on Principal Components Analysis Method

灌区地下水资源承载力综合评价方法很多,各有优缺点,在具体分析过程中都存在一定的局限性,且模型精度较难控制。在深入分析灌区地下水资源开采现状、供用水结构以及各部门需水要求等影响水资源承载力主要因素的基础上,建立灌区地下水资源承载力评价的指标体系,应用SPASS软件中因子分析工具中的主成分分析法对陕西省宝鸡峡灌区地下水资源承载力作出了综合评价。结果表明,宝鸡峡灌区地下水资源开发利用已经到了相当程度,继续开发的潜力较小。主成分分析法,评价结果与灌区实际吻合,为水资源承载力分析提供了方便的运算工具。

The index system for evaluating the carrying capacity of water resources is established based on the analysis of the exploration situation and the supply and requirement structure of ground water,and the carrying capacity of ground water in Baojixia Irrigation District of Shaanxi Province is evaluated by Principal Components Analysis Method in SPASS software.The conclusions acquired by the research show that the development of ground water in the district has reached to a considerable level,and there is a little potential for further development.