CAJ | 학술논문

基于2007年夏季辽东湾海域的水质监测资料,以高锰酸盐指数(COD_(Mn))、溶解无机氮(DIN)、磷酸盐(PO_4~(3-)-P)和溶解氧(DO)为海水富营养化评价指标,运用模糊综合评价方法并对其中的评价等级确定方法加以改进,评价了辽东湾海域水体富营养化状况,分析了水体富营养化的关键因子和控制性因素. 结果表明:对评价方法的改进,取得了较好的效果;辽东湾沿岸和河口口门附近海域已达到富营养化程度,而海湾中部则处于贫营养状态,富营养化程度从海湾中部向近岸逐渐增加;影响辽东湾海域水体富营养化的关键因子为无机氮;辽东湾海域的富营养化水平主要受入海河流冲淡水影响范围的控制.
기우2007년하계료동만해역적수질감측자료,이고맹산염지수(COD_(Mn))、용해무궤담(DIN)、린산염(PO_4~(3-)-P)화용해양(DO)위해수부영양화평개지표,운용모호종합평개방법병대기중적평개등급학정방법가이개진,평개료료동만해역수체부영양화상황,분석료수체부영양화적관건인자화공제성인소. 결과표명:대평개방법적개진,취득료교호적효과;료동만연안화하구구문부근해역이체도부영양화정도,이해만중부칙처우빈영양상태,부영양화정도종해만중부향근안축점증가;영향료동만해역수체부영양화적관건인자위무궤담;료동만해역적부영양화수평주요수입해하류충담수영향범위적공제.
Based on water quality data of COD_(Mn), DIN, phosphate and DO concentrations collected in the Liaodong Bay in summer 2007 and the method of fuzzy comprehensive evaluation with improvements in rank level determination method, the eutrophication status in this region was evaluated, then the key indices and controlling factors were analyzed. The results indicated that the improvements to the evaluation method obtained good results. The coast and estuary of Liaodong Bay were eutrophied already, while the central areas were oligotrophic. The eutrophication level increased from the central to the coastal areas. The key eutrophication index was DIN, and the eutrophication status was primarily controlled by the influential range of the diluted water in the Liaodong Bay waters.