中国农村水利水电
中國農村水利水電
중국농촌수이수전
CHINA RURAL WATER AND HYDROPOWER
2014年
9期
47-52
,共6页
模糊数学%贴近度%评价因子权重%水质评价
模糊數學%貼近度%評價因子權重%水質評價
모호수학%첩근도%평개인자권중%수질평개
fuzzy mathematics%nearness%index weight%water quality evaluation
白河是南阳市的重要旅游胜地和饮用水源地。为了解白河水质状况,2010年在白河设置了7个监测断面,采集了12个月的水样来评价。鉴于其他评价方法的局限性和白河水质评价的重要性,利用主成分分析降维的思想筛选评价因子,利用改进后的模糊贴近度法来评价水质。最后,选择溶解氧、高锰酸盐指数、氨氮、化学需氧量、总氮、总磷、氟化物和粪大肠杆菌评价因子,用改进的模糊贴近度法评价水质状况。结果表明,从上游到下游呈现出逐渐恶化的趋势。鸭河水库坝下和内乡盆窖断面水质级别为Ⅰ级,淅川张营水质级别为Ⅲ级,方城夏河、邓州汲滩、新野梅湾和新甸铺水质级别为Ⅴ级。改进后的方法与模糊综合评价法和层次分析法评价结果一致。
白河是南暘市的重要旅遊勝地和飲用水源地。為瞭解白河水質狀況,2010年在白河設置瞭7箇鑑測斷麵,採集瞭12箇月的水樣來評價。鑒于其他評價方法的跼限性和白河水質評價的重要性,利用主成分分析降維的思想篩選評價因子,利用改進後的模糊貼近度法來評價水質。最後,選擇溶解氧、高錳痠鹽指數、氨氮、化學需氧量、總氮、總燐、氟化物和糞大腸桿菌評價因子,用改進的模糊貼近度法評價水質狀況。結果錶明,從上遊到下遊呈現齣逐漸噁化的趨勢。鴨河水庫壩下和內鄉盆窖斷麵水質級彆為Ⅰ級,淅川張營水質級彆為Ⅲ級,方城夏河、鄧州伋灘、新野梅灣和新甸鋪水質級彆為Ⅴ級。改進後的方法與模糊綜閤評價法和層次分析法評價結果一緻。
백하시남양시적중요여유성지화음용수원지。위료해백하수질상황,2010년재백하설치료7개감측단면,채집료12개월적수양래평개。감우기타평개방법적국한성화백하수질평개적중요성,이용주성분분석강유적사상사선평개인자,이용개진후적모호첩근도법래평개수질。최후,선택용해양、고맹산염지수、안담、화학수양량、총담、총린、불화물화분대장간균평개인자,용개진적모호첩근도법평개수질상황。결과표명,종상유도하유정현출축점악화적추세。압하수고패하화내향분교단면수질급별위Ⅰ급,석천장영수질급별위Ⅲ급,방성하하、산주급탄、신야매만화신전포수질급별위Ⅴ급。개진후적방법여모호종합평개법화층차분석법평개결과일치。
The Baihe River is an important tourist destination and the source of drinking water in Nanyang .To evaluate water quality , seven monitoring sections were established ,water samples were collected in 12 months of 2010 ,a new model based on principal com-ponent analysis was proposed to overcome limitations of other evaluation methods and the importance of the Baihe River water quality evaluation .In the new model ,factors were selected by dimension reduction principle .Meanwhile ,a case study of source water quali-ty assessment using the improved model in the Baihe River ,was presented .The result showed that from upstream to downstream showing a worsening trend . water quality level of Duck River reservoir and Neixiang section is Ⅰ .Xichuanzhangying is Ⅲ . Fangchengxiahe ,Dengzhoujitan ,Xinyemeiwan and Xin dian pu is Ⅴ .The improved method and analytic hierarchy process (AHP) and fuzzy comprehensive evaluation method evaluation results are in agreement with each other .