
Evaluation of Rural River Ecological Conditions Based on Fuzzy Matter Element Method
Guo-hua FANG, Xiao-jing YE, Huai-zhu YAO, Tao LIAO, Zi-qi SONG
Evaluation of Rural River Ecological Conditions Based on Fuzzy Matter Element Method
The evaluation of rural river ecological condition is the basis of rural river ecological management. According to the characteristics of rural rivers, the evaluation index system of rural river ecological conditions is constructed from six aspects: river function, river form, river environment, river ecology and landscape, river management and comprehensive evaluation. The integrated order relationship analysis-entropy weight method obtains the combined weight of each index. An established fuzzy matter-element evaluation model is used to comprehensively evaluate the ecological status of rural rivers in Jiangsu Province. The results show that the ecological conditions of rural rivers in Jiangsu Province are generally good, but some rural rivers still have poor ecological conditions, and there are regional differences in the ecological conditions of rural rivers in Jiangsu Province. The evaluation results are basically consistent with the actual situation.
rural rivers / ecological status evaluation / order relation analysis method / entropy weight method / fuzzy matter-element method {{custom_keyword}} /
Tab.1 Indicators of evaluation on rural river ecological conditions表1 农村河道生态状况评价指标体系 |
目标层 | 准则层 | 指标层 |
---|---|---|
江苏省农村河道生态评价 | 河道功能B1 | 防洪工程达标率C1/% |
排涝标准C2/a | ||
供水保证率(灌溉保证率)C3/% | ||
水系结构连通性指数C4/个 | ||
纵向连通性指数C5 | ||
河道形态B2 | 河岸稳定性C6 | |
河道断面情况C7 | ||
河流蜿蜒度C8 | ||
河道护岸形式C9 | ||
河道渠化程度C10 | ||
河道环境B3 | 水质C11 | |
沿线农村生活污水排放达标率C12/% | ||
沿线规模畜禽养殖污水排放达标率C13/% | ||
水体透明度C14/cm | ||
河道生态与景观B4 | 生态用水满足程度C15 | |
水体流动性C16 | ||
岸坡及水域绿化情况C17 | ||
河岸带宽度指数C18 | ||
水生植物多样性C19 | ||
水生动物多样性C20 | ||
河道管护B5 | 河道侵占整治指数C21/% | |
岸坡整洁情况C22 | ||
河面清洁情况C23 | ||
岸线管理保护范围划定率C24/% | ||
综合评判B6 | 公众满意度C25/% |
Tab.2 Grading standards for evaluation indicators of rural river ecological conditions表2 农村河道生态状况评价指标分级标准 |
指标 | 评价方法 | 指标评价标准 | |||
---|---|---|---|---|---|
优 | 良 | 中 | 差 | ||
C1 | 定量 | [95,100] | [85,95) | [60,85) | [0,60) |
C2 | 定量 | [ | [15,20) | [10,15) | [0,10) |
C3 | 定量 | [95,100] | [85,95) | [60,85) | [0,60) |
C4 | 定量 | [ | [2,3) | [1,2) | [0,1) |
C5 | 定量 | [0,0.3) | [0.3,0.6) | [0.6,1.0) | [1.0,10.0] |
C6 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C7 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C8 | 定性量化 | [1.14,3.00] | [1.08,1.14] | [1.02,1.08) | [0,1.02) |
C9 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C10 | 定量 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C11 | 定量 | [0,2) | [2,3) | [3,4) | [ |
C12 | 定量 | [90,100] | [75,90) | [60,75) | [0,60) |
C13 | 定量 | [90,100] | [75,90) | [60,75) | [0,60) |
C14 | 定量 | [60,300] | [50,60) | [30,50) | [0,30) |
C15 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C16 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C17 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C18 | 定量 | [1.5,3.0] | [1.0,1.5) | [0.25,1.0) | [0,0.25) |
C19 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C20 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C21 | 定量 | [80,100] | [60,80) | [40,60) | [0,40) |
C22 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C23 | 定性量化 | [0.75,1.00] | [0.5,0.75) | [0.25,0.5) | [0,0.25) |
C24 | 定量 | [80,100] | [60,80) | [40,60) | [0,40) |
C25 | 定量 | [90,100] | [80,90) | [75,80) | [0,75) |
Tab.3 The evaluation index values of the ecological status of rural rivers in Jiangsu Province表3 江苏省农村河道生态状况各评价指标值 |
指标 | 长沟河 | 三桥埂沟 | 茅雉河 | 高路河 | 龙须港 | 沿六河 |
---|---|---|---|---|---|---|
C1 | 100 | 100 | 100 | 55 | 100 | 70 |
C2 | 20 | 30 | 20 | 10 | 10 | 5 |
C3 | 95 | 85 | 90 | 75 | 80 | 85 |
C4 | 2 | 3 | 3 | 3 | 2 | 1 |
C5 | 0.48 | 6.52 | 0 | 0.83 | 0.13 | 0 |
C6 | 0.75 | 0.70 | 1.00 | 0.45 | 0.75 | 0.30 |
C7 | 0.90 | 0.75 | 0.75 | 0.50 | 0.65 | 0.30 |
C8 | 1.07 | 1.13 | 1.00 | 1.01 | 1.08 | 1.37 |
C9 | 0.85 | 0.75 | 0.80 | 0.75 | 0.80 | 0.75 |
C10 | 0.80 | 0.60 | 0.75 | 0.70 | 0.65 | 0.60 |
C11 | 4 | 5 | 4 | 5 | 3 | 6 |
C12 | 100 | 60 | 100 | 30 | 70 | 30 |
C13 | 100 | 100 | 70 | 30 | 70 | 30 |
C14 | 65 | 25 | 60 | 20 | 40 | 10 |
C15 | 0.80 | 0.75 | 0.75 | 0.50 | 0.75 | 0.15 |
C16 | 0.70 | 0.60 | 0.80 | 0.30 | 0.70 | 0.10 |
C17 | 0.95 | 0.70 | 0.70 | 0.25 | 0.80 | 0.40 |
C18 | 1.00 | 0.50 | 0.86 | 0.60 | 0.83 | 0.59 |
C19 | 0.90 | 0.45 | 0.75 | 0.50 | 0.80 | 0.75 |
C20 | 0.70 | 0.50 | 0.70 | 0.45 | 0.50 | 0.10 |
C21 | 100 | 100 | 100 | 30 | 100 | 30 |
C22 | 0.90 | 0.70 | 1.00 | 0.40 | 1.00 | 0.20 |
C23 | 0.85 | 0.65 | 1.00 | 0.30 | 0.65 | 0.10 |
C24 | 100 | 70 | 100 | 100 | 100 | 70 |
C25 | 95 | 95 | 100 | 65 | 100 | 40 |
Tab.4 Evaluation indicator weights of ecological conditions of rural rivers in Jiangsu Province表4 江苏省农村河道生态状况评价指标权重 |
指标 | 主观权重 | 客观权重 | 组合权重 |
---|---|---|---|
C1 | 0.044 | 0.037 | 0.041 |
C2 | 0.044 | 0.036 | 0.040 |
C3 | 0.044 | 0.030 | 0.037 |
C4 | 0.039 | 0.036 | 0.037 |
C5 | 0.030 | 0.031 | 0.031 |
C6 | 0.047 | 0.035 | 0.041 |
C7 | 0.047 | 0.030 | 0.039 |
C8 | 0.038 | 0.041 | 0.040 |
C9 | 0.030 | 0.040 | 0.035 |
C10 | 0.030 | 0.057 | 0.044 |
C11 | 0.052 | 0.040 | 0.046 |
C12 | 0.052 | 0.052 | 0.052 |
C13 | 0.052 | 0.051 | 0.051 |
C14 | 0.035 | 0.042 | 0.038 |
C15 | 0.034 | 0.032 | 0.033 |
C16 | 0.034 | 0.035 | 0.035 |
C17 | 0.034 | 0.034 | 0.034 |
C18 | 0.030 | 0.040 | 0.035 |
C19 | 0.030 | 0.040 | 0.035 |
C20 | 0.030 | 0.031 | 0.031 |
C21 | 0.055 | 0.059 | 0.057 |
C22 | 0.031 | 0.040 | 0.035 |
C23 | 0.031 | 0.034 | 0.033 |
C24 | 0.031 | 0.059 | 0.045 |
C25 | 0.074 | 0.038 | 0.056 |
Tab.5 Comprehensive evaluation grades of ecological status of rural rivers in Jiangsu Province表5 江苏省农村河道生态状况综合评价等级 |
综合关联度 | 优 | 良 | 中 | 差 | 等级 |
---|---|---|---|---|---|
长沟河 | 0.055 | -0.402 | -0.596 | -0.699 | 优 |
三桥埂沟 | -0.195 | -0.185 | -0.380 | -0.457 | 良 |
茅雉河 | -0.071 | -0.404 | -0.547 | -0.677 | 优 |
高路河 | -0.431 | -0.317 | -0.110 | -0.115 | 中 |
龙须港 | -0.142 | -0.268 | -0.338 | -0.576 | 优 |
沿六河 | -0.542 | -0.427 | -0.294 | -0.011 | 差 |
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