首页|期刊导航|中国海洋湖沼学报(英文版)|Improved AHP method and its application in lake environmental comprehensive quality evaluation-a case study of Xuanwu Lake, Nanjing, China
中国海洋湖沼学报(英文版)2007，Vol.25Issue(4)：427-433,7.
Improved AHP method and its application in lake environmental comprehensive quality evaluation-a case study of Xuanwu Lake, Nanjing, China
Improved AHP method and its application in lake environmental comprehensive quality evaluation-a case study of Xuanwu Lake, Nanjing, China
摘要
Abstract
The relative importance of each pollution factor in analytical hierarchy process (AHP)method comes from pooling expert opinions in general. Because expert opinions are based on information and judgment criteria, determining their weight may lead to uncertainty.. Therefore, an improved AHP method had been developed. The process of the improved AHP method involved four key procedures. The weights of pollution factors were completely related to the objective monitoring data through the standardization of these procedures. The environmental comprehensive quality of water and sediment of Xuanwu Lake, Nanjing, China had been evaluated. The environmental quality comprehensive indices(EQCI) of the water in 1991-1995 and 1996-2000 were 3.32 and 1.85, respectively, indicating that the water quality improved. The EQCI of the sediment in 1995 and 2000 indicates that the sediment contamination decreased from 1995 to 2000. Such results agreed with the fact that the lake had been under comprehensive control. However, with the classical AHP method, the EQCI of the sediment in the northwestern part of the lake may have indicated that sediment contamination increased from 1995 to 2000. The discrepancy may have resulted from the judgment difference of the experts. The improved AHP method can avoid arbitrariness of subjective judgment and can reflect the real influential factors of environment pollution in different periods or regions.关键词
seating order/ weight/ improved AHP method/ environmental quality comprehensive evaluation/ Xuanwu LakeKey words
seating order/ weight/ improved AHP method/ environmental quality comprehensive evaluation/ Xuanwu Lake分类
天文与地球科学引用本文复制引用
..Improved AHP method and its application in lake environmental comprehensive quality evaluation-a case study of Xuanwu Lake, Nanjing, China[J].中国海洋湖沼学报(英文版),2007,25(4):427-433,7.基金项目
National Natural Science Foundation of China,No.40771186. （）
