Urban Water Ecosystem Health Evaluation Based on the Improved Fuzzy Matter-Element Extension Assessment Model: Case Study from Zhengzhou City, China

<table class="fixed-width table-group" id="tab3"><tr><td><table class="table"><colgroup><col style="width:7.98em"/><col style="width:4.80em"/><col style="width:4.76em"/><col style="width:6.30em"/><col style="width:5.97em"/><col style="width:4.21em"/></colgroup><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Assessment level</td><td class="align_center">very sick</td><td class="align_center">sick</td><td class="align_center">unhealthy</td><td class="align_center">sub-healthy</td><td class="align_center">healthy</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left"><span style="width: 27.6586ptpx;"><svg height="8.8423pt" id="M56" style="vertical-align:-0.2064009pt" version="1.1" viewbox="-0.0498162 -8.6359 27.6586 8.8423" width="27.6586pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M962 650H739L732 622L760 619C812 613 819 604 798 552C760 457 671 267 606 131H604L511 638H480L237 131H233L183 554C177 607 183 614 226 619L248 622L257 650H24L17 622C88 615 92 611 103 524L173 -11H203L450 491H453L543 -11H575L839 529C882 609 886 613 953 622L962 650Z"></path></g><g transform="matrix(.013,0,0,-0.013,11.625,0)"><path d="M828 650H570L564 622C646 614 650 609 634 524L604 366H253L281 524C296 608 308 615 382 622L388 650H132L126 622C211 615 214 609 198 524L121 122C106 42 102 35 23 28L17 0H276L282 28C196 35 191 40 206 122L243 324H597L559 123C544 42 537 35 452 28L446 0H710L716 28C632 35 628 43 643 122L719 524C735 610 741 615 822 622L828 650Z"></path></g><g transform="matrix(.013,0,0,-0.013,21.896,0)"><path d="M405 650H141L135 622C222 616 230 610 215 535L133 116C118 41 113 33 29 28L23 0H289L295 28C209 33 205 40 219 116L298 535C312 609 317 616 399 622L405 650Z"></path></g></svg></span></td><td class="align_center">0</td><td class="align_center">(0,0.335)</td><td class="align_center">[0.335,0.671)</td><td class="align_center">[0.671,1)</td><td class="align_center">1</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Classification of urban water ecosystem health.</div>

Mathematical Problems in Engineering

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Table 3

Table 3: Urban Water Ecosystem Health Evaluation Based on the Improved Fuzzy Matter-Element Extension Assessment Model: Case Study from Zhengzhou City, China 

Table 3 | Urban Water Ecosystem Health Evaluation Based on the Improved Fuzzy Matter-Element Extension Assessment Model: Case Study from Zhengzhou City, China 