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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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辽中地区矿业城市水资源供需平衡动态分析
DOI: 10.11821/xb200805003, PP. 473-481
Keywords: 可利用水资源,需水结构,生态环境需水,矿业城市
Abstract:
辽中地区矿业城市是我国重要的能源生产和重工业基地,研究其水资源供需变化有利于实现水资源可持续化管理,促进经济、生态协调发展。分析了水资源供需平衡框架,可利用水资源和需水量的计算方法,以及水资源供需平衡的影响因子。结果表明1997-2005年,辽中地区矿业城市水资源供需区域差异明显,鞍山市水资源供需失衡明显,但缺水量逐渐降低,2005年仅缺水0.32×108m3,水资源开发利用率平均达到65.56%,用水属于高度紧张；抚顺市水资源供需基本持平,近几年余水量逐渐增大,2005年余水5.25×108m3,水资源开发利用率平均达到35.11%,用水属于中高度紧张；本溪市水资源供需平衡,可利用水资源大于需水量,2005年余水8.65×108m3,水资源开发利用率平均达到27.96%,用水属于中高度紧张。鞍山的需水结构以农业需水和生态环境需水为主,两者达到总需水量的76%；抚顺以生态环境需水为主,达到60%,农业需水次之,达到23%；本溪生态环境需水达到67%,工业需水次之,为15%。自然条件的差异是水资源供需变化差异的基础,人类社会经济活动和政策法规是水资源供需变化的主要影响因子。
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