CAJ | 학술논문

水质指标同相关社会影响因素间存在着一定相关性。将水质指标的影响因素分为直接与间接因素，运用灰色关联度分析方法对水质指标同相关影响因子之间进行关联性分析，分别得出直接因素与间接因素同水质指标间的关联度排序，发现工业废水是重庆主城段河流中COD的主要影响因素、农业污染则是TP的主要影响因素，间接因素中的人口数量同3项主要水质指标之间均存在相关性，而经济水平同水质指标间并无明显关联性。根据水质主要影响因素的分析结果，应当不断加强水环境保护力度，通过对污染源排放的控制，提高农业生产技术，提高污水处理率等方面来改善河流水质。
수질지표동상관사회영향인소간존재착일정상관성。장수질지표적영향인소분위직접여간접인소，운용회색관련도분석방법대수질지표동상관영향인자지간진행관련성분석，분별득출직접인소여간접인소동수질지표간적관련도배서，발현공업폐수시중경주성단하류중COD적주요영향인소、농업오염칙시TP적주요영향인소，간접인소중적인구수량동3항주요수질지표지간균존재상관성，이경제수평동수질지표간병무명현관련성。근거수질주요영향인소적분석결과，응당불단가강수배경보호력도，통과대오염원배방적공제，제고농업생산기술，제고오수처리솔등방면래개선하류수질。
Correlations might exist between water quality index and relevant social-economic factors. Association between water quality and certain social-economic factors are investigated using Grey Relative Model, where the influencing social-economic factors classified into both direct and indirect factors. Consequently, analysis results present each factor's influence to water quality index. The results suggest industrial sewage is the leading influencing factor for COD level in Chongqing urban river section, while agricultural pollution register the primary influencing factor for TP. Correlation proved to be significant between indirect factor population and three main water quality indexes, while some economic factors, such as GDP, appear to have insignificant correlation with water quality. Based on analysis results, the author finally concludes with suggestions for water quality improvement with emphasis on water contaminants sourcing control, agricultural production upgrading and sewage treatment enhance.