黄河三角洲水资源可持续利用评价与预测Water Resources Sustainable Utilization Evaluation Based on the DPSIR in the Yellow River Delta
韩美;杜焕;张翠;李高伟;史丽华;
摘要(Abstract):
黄河三角洲地处黄河下游入海口,兼受海陆交互影响,淡水资源贫乏。评价和预测黄河三角洲水资源的可持续利用水平,对于进一步缓解区域水资源供需矛盾,促进当地生态保护与经济社会协调发展,具有重要的指导意义。本文以DPSIR模型为框架,选取21项指标构建水资源可持续利用评价指标体系,对研究区2000-2012年的水资源可持续利用水平进行了评价。从总体评价值来看,2000-2012年黄河三角洲水资源可持续利用的整体水平呈波动上升趋势,其中2002年评价值最低,为0.107,2012年评价值最高,为0.801;从各因子来看,2002年驱动力、压力、状态、影响、响应五个因子的评价值都较低,其中驱动力值和状态值最低。2012年五大因子评价值出现较大幅度增加,其中影响和响应因子的评价值最高;从各因子的相关性来看,驱动力、压力和状态三个因子的值变化趋势比较一致,说明表征这三个因子的指标有较强的正相关性;而影响和响应两个因子的值变化趋势接近,同样说明表征这两个因子的指标有较好的正相关性;从各因子稳定性来看,驱动力值波动起伏较大,稳定性最差,这主要与黄河利津站径流量等驱动力因子的起伏变化大有关。文章还以2000-2012年水资源可持续利用水平值为原始数据,利用GM(1,1)模型预测了未来7年黄河三角洲水资源的可持续利用水平,经与灰色预测精度等级划分标准对照发现,预测结果的相对误差值分布在合格(<0.05)与勉强(<0.20)两个等级之间,误差在允许范围内。预测结果表明,黄河三角洲2014-2020年水资源可持续利用潜力呈稳定上升趋势,2020年水资源可持续利用潜力值为2.812 41,较2014年1.515 55增加近1倍,未来水资源的可持续利用水平将持续提高。
关键词(KeyWords): 黄河三角洲;水资源可持续利用;DPSIR模型;指标体系;灰色预测;信度分析
基金项目(Foundation): 国家自然科学基金面上项目“黄河三角洲湿地生态价值评估与生态补偿标准研究”(编号:41371537);; 山东省科技计划“基于RS技术的黄河三角洲湿地退化与生态补偿研究”(编号:2013GSF11706)
作者(Author): 韩美;杜焕;张翠;李高伟;史丽华;
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