长白山区水资源承载力综合评价及影响因素识别

Assessment on Water Resource Carrying Capacity and Identification of Influencing Factors in Changbai Mountain

为推进长白山区经济发展和水资源合理开发利用,选取14个指标建立长白山区水资源承载力综合评价指标体系,采用熵权法的TOPSIS模型对2015-2019年的长白山区水资源承载力进行综合评价,并用障碍因素模型分析其影响因素。结果表明:长白山区水资源承载力综合评价指数处于0.284~0.73,具有显著的地区差异性,从西至东,水资源承载力呈现减小趋势,临江县与长白县的水资源可承载力较高,安图与和龙市承载能力低,其中和龙市处于弱可承载状态;人口是影响总体水资源承载力的首要障碍因子,通过优化水资源配置,调整用水结构,能够提升和保持该地区的水资源承载能力。

To enhance economic development and the utilization of water resources in the Changbai Mountains,14 indicators were selected to establish a comprehensive evaluation index system for the water capacity of the mountains.The TOPSIS model was combined with the entropy method to measure the water capacity of the Changbai Mountains during 2015-2019,while an obstacle method comprehensively evaluated the influencing factors.The results show that,according to the index,the water capacity of the Changbai Mountains measured is between 0.284-0.730,with significant regional differences.From west to east,the water capacity decreases.The water capacity of Linjiang County and Changbai County is relatively high,while that of Antu and Helong is low.Human population is the primary obstacle factor to the water capacity of the study area.By optimizing the water configuration and adjusting the structure of water usage,the water capacity of the region could be maintained or even improved.