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基于模糊矩阵法的河流健康评价体系
- Title:
- An Introduction to River Health Assessment Based on Fuzzy Matrix
- Keywords:
- fuzzy matrix; cluster analysis; river health
- 分类号:
- P342.1
- 摘要:
- 基于河流健康评估，针对威胁河流生态健康及河流治理的问题，提供关于河流健康及其问题河段的科学解释与依据。在综合国内外河流健康状况评价方法及各项表征指标的基础上，建立了基于模糊矩阵法的河流健康评价体系。应用模糊关系合成原理，从多个因素对河流隶属等级状况进行综合评判。具体评价时分为目标层、准则层和指标层，结合模糊矩阵采用层层推进的计算方法，最后将计算结果分为自然、近自然、退化、人工4大类。结果表明：怀沙河总体得分为2.6分，其中自然状态占整条河段的41%，近自然状态占整条河段的32%，退化自然状态占整条河段的27%。分段评价结果表明：三岔、渤海、口头河段状态较好，四渡河、南冶、辛营需要采用合理措施来改善河流生态系统。该评价方法可以针对性地提出改进措施和建议，为城市郊区河流的健康和生态环境建设的可持续性提供思路。
- Abstract:
- Based on river health assessment, focusing on several urgent issues of river ecological health and river improvement, offering scientific explanations and proofs on river health and weak reaches of it, this research summed up assessment methods and various indices at home and abroad, striking up fuzzy matrix assessment to measure the river health, which was in view of fuzzy relation combining principle, to comprehensively judge the condition of the river membership hierarchy in various factors. There were target layer, criterion layer and index layer specially in this assessment, which was adopted fuzzy matrix to calculate statics layer upon layer. At last, it was divided into four broad headings named: natural, near natural, degenerate, artificial. The assessment result showed that the status of the Huaisha River was 2.6 (natural: 41%, near natural: 32%, degenerate: 27%). Subsection assessment results indicated that: Sancha Reach, Bohai Reach, Koutou Reach were in good condition, Siduhe Reach, Nanye Reach, Xinying Reach were needed to adopt reasonable measurements to improve river ecosystem. The assessment put forward the reasonable suggestions and improvement measures which can offer several ideas to the health in suburban river and the sustainability of the eco-environmental construction.
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备注/Memo
收稿日期:2011-11-14;修回日期:2011-12-26
基金项目:国际科技合作项目（2009DFA32490）
作者简介:高宇婷（1989- ），女，山西省交口县人，硕士生，主要研究方向为河流生态恢复。E-mail：ws.gyt123@163.com。
通讯作者:高甲荣（1963- ），男，陕西省韩城县人，教授，主要研究方向为水土保持。E-mail：jiaronggao@sohu.com。