环境科学与管理
環境科學與管理
배경과학여관리
ENVIRONMENTAL SCIENCE AND MANAGEMENT
2011年
9期
176-178,194
,共4页
章磊%曹贯中%于浩%尤永祥
章磊%曹貫中%于浩%尤永祥
장뢰%조관중%우호%우영상
枢质评价%模糊综合评价%隶属函数%隶属度
樞質評價%模糊綜閤評價%隸屬函數%隸屬度
추질평개%모호종합평개%대속함수%대속도
water quality assessment%fuzzy comprehensive evaluation%subordinate function%subordinate degree
在对水质综合评价的诸多方法中,模糊综合评价法以其评价结果合理、更接近客观实际等优点,得到越来越广泛的应用。由于某些指标其单项标准限值数少于水质总体分级,采用传统模糊评价方法计算得到的隶属度与实际情况并不相符。针对此类情况,对隶属函数加以改进,提出改进后的模糊评价方法,并将此方法应用于长江下游贵池河段2005年-2009年问水环境综合评价,与传统方法计算结果相比较,取得了较好的效果。
在對水質綜閤評價的諸多方法中,模糊綜閤評價法以其評價結果閤理、更接近客觀實際等優點,得到越來越廣汎的應用。由于某些指標其單項標準限值數少于水質總體分級,採用傳統模糊評價方法計算得到的隸屬度與實際情況併不相符。針對此類情況,對隸屬函數加以改進,提齣改進後的模糊評價方法,併將此方法應用于長江下遊貴池河段2005年-2009年問水環境綜閤評價,與傳統方法計算結果相比較,取得瞭較好的效果。
재대수질종합평개적제다방법중,모호종합평개법이기평개결과합리、경접근객관실제등우점,득도월래월엄범적응용。유우모사지표기단항표준한치수소우수질총체분급,채용전통모호평개방법계산득도적대속도여실제정황병불상부。침대차류정황,대대속함수가이개진,제출개진후적모호평개방법,병장차방법응용우장강하유귀지하단2005년-2009년문수배경종합평개,여전통방법계산결과상비교,취득료교호적효과。
Fuzzy comprehensive evaluation is widely applied in water quality assessment because of its advantages of reasonable results and closed to the actual situation, etc. Some individual standard limits of a certain index are less than the overall water quality grade, so the subordinate relations calculated by the traditional fuzzy evaluation method do not match with the fact. In order to solve this problem, this study improved the subordinate function, proposed an improved fuzzy evaluation method based on the traditional one. This method is applied in the water quality assessment of Guiehi section, the downstream of Yangtze River during 2005 - 2009 and favorable results were obtained.