盘锦市水资源可持续利用评价分析

Evaluation and Analysis of Water Resources Sustainable Use in Panjin City

以盘锦市水资源可持续利用为例,运用AHP层次分析法分别从水资源管理能力、合理配置、生态环境、开发利用效率以及水资源条件5个方面选择50项代表性指标并构建评价体系与分级标准,然后根据BP网络与AHP层次分析原理构建建立评价模型,综合评价了盘锦市可持续利用状况。研究表明:盘锦市各分区水资源利用在不同规划水平年整体位于2-3级区间,评价结果能够较好的反映该区域中长期水资源利用状况;模型有效避免了判断矩阵一致性不易检验与主观性较强的不足,相对于单隐层网络双隐层BP网络具有自适应能力强、参数收敛速度快以及学习时间短等优点。

Taking the sustainable use of water resources in Panjing City as the example, this paper used AHP to select 50 representative indexes and constructed the evaluation system and grading standard from five respects of water resources management capability, reasonable allocation, ecological environment, development efficiency and water resources conditions, then, in accordance with BP net and AHP hierarchical analysis theory, to construct the evaluation model, which evaluated comprehensively the sustainable use state in Panjin City. The study shows that: water resources use in each region of Panjing City is located in level 2 to 3 interval on the whole in different planning level year, the evaluation results can reflect better the water resources use of the region in middle and long period;the model avoids effectively the lack of easy to check the judgement matrix consistency and strong subjectivity, having the advantages of strong adaptability, fast convergence parameter and short study time comparable with single hidden layer BP and double hidden layer BP.