人民长江
人民長江
인민장강
YANGTZE RIVER
2001年
4期
27-28,36
,共3页
污染损失率%损害评价%水污染%洞庭湖
汙染損失率%損害評價%水汙染%洞庭湖
오염손실솔%손해평개%수오염%동정호
运用水污染损失率为基础的评价方法，对洞庭湖水体使用功能损害程度进行评价表明：洞庭湖水已不适合作饮用和游泳水源(重损害，损失率分别为70%和58%)；主要污染物来自营养物质，且以氮为限制性因素。洞庭湖功能损害的根源在于泥沙。洞庭湖水作为人体非直接饮用的旅游娱乐用水也已受到严重威胁(中损害，损失率为22%)。作为养殖、农业灌溉以及一般居住环境用水尚好(损失率＜8%)。综合损害程度为中损害(损失率42%)，若洞庭湖水不再用作饮用水源和游泳场，其综合水质是可接受的(微损害，损失率降为3%)。
運用水汙染損失率為基礎的評價方法，對洞庭湖水體使用功能損害程度進行評價錶明：洞庭湖水已不適閤作飲用和遊泳水源(重損害，損失率分彆為70%和58%)；主要汙染物來自營養物質，且以氮為限製性因素。洞庭湖功能損害的根源在于泥沙。洞庭湖水作為人體非直接飲用的旅遊娛樂用水也已受到嚴重威脅(中損害，損失率為22%)。作為養殖、農業灌溉以及一般居住環境用水尚好(損失率＜8%)。綜閤損害程度為中損害(損失率42%)，若洞庭湖水不再用作飲用水源和遊泳場，其綜閤水質是可接受的(微損害，損失率降為3%)。
운용수오염손실솔위기출적평개방법，대동정호수체사용공능손해정도진행평개표명：동정호수이불괄합작음용화유영수원(중손해，손실솔분별위70%화58%)；주요오염물래자영양물질，차이담위한제성인소。동정호공능손해적근원재우니사。동정호수작위인체비직접음용적여유오악용수야이수도엄중위협(중손해，손실솔위22%)。작위양식、농업관개이급일반거주배경용수상호(손실솔＜8%)。종합손해정도위중손해(손실솔42%)，약동정호수불재용작음용수원화유영장，기종합수질시가접수적(미손해，손실솔강위3%)。
Based on economic loss rate of water due to pollution,the damage extent of applied functions of water in Dongting lake is assessed.Results show that water in Dongting lake has not been suitable for serving as a water source for drinking and swimming(seriously damaged,with loss rate of 70% and 58% respectively),and main pollutents come from nutrient,taking nitrogen as a restrictive factor.The root of functional damage of water in Dongting lake is sedimentation.As a sort of water used for tourism and recreation,not for drinking,water in the lake has also been affected by pollution (moderately damaged,with loss rate of 22%),but as a sort of water used for aquaculture,irrigation and residential environment,it is still in good condition (with loss rate less then 8%).Its comprehensive damage extent is moderate (with loss rete of 42%).If water in Dong-ting lake is no longer used for drinking and swimming,its comprehensive quality is acceptable (slightly damaged,with loss rate reduced to 3%).
