CAJ | 학술논문

运用多元统计方法，对东江中游水质自动站（河源临江站和惠州剑潭站）2009-2012年水质监测数据进行时空分异特征及影响因素研究。结果表明：水站水质在Ⅰ类～Ⅲ类之间；空间特征差异为 T 与 TB 差异不显著，pH 值、EC、DO、IMn、NH3-N 及 TP均存在极显著差异；水期体征差异为河源临江站除 DO各水期差异显著外，其他指标差异不明显，惠州剑潭站 pH值、EC、IMn与 TP各水期均呈显著差异，NH3-N 水期差异不显著。Pearson 相关性分析表明，T 是制约河源临江站水体 DO的主要相关因子，营养盐作用相对较低；惠州剑潭站水体 DO 与 T、TP及 IMn呈极显著负相关关系。通过因子分析，识别出影响惠州剑潭水质的主因子，量化了水体理化性质、地表径流及人为污染对水质变化的贡献。
운용다원통계방법，대동강중유수질자동참（하원림강참화혜주검담참）2009-2012년수질감측수거진행시공분이특정급영향인소연구。결과표명：수참수질재Ⅰ류～Ⅲ류지간；공간특정차이위 T 여 TB 차이불현저，pH 치、EC、DO、IMn、NH3-N 급 TP균존재겁현저차이；수기체정차이위하원림강참제 DO각수기차이현저외，기타지표차이불명현，혜주검담참 pH치、EC、IMn여 TP각수기균정현저차이，NH3-N 수기차이불현저。Pearson 상관성분석표명，T 시제약하원림강참수체 DO적주요상관인자，영양염작용상대교저；혜주검담참수체 DO 여 T、TP급 IMn정겁현저부상관관계。통과인자분석，식별출영향혜주검담수질적주인자，양화료수체이화성질、지표경류급인위오염대수질변화적공헌。
Based on data collected by water quality auto-monitoring stations (Heyuan Linjiang and Huizhou Jiantan stations)located at the middle section of Dongjiang river from 2009-2012,the spatial and temporal vari-ation and influential factors were evaluated by multi-variate statistical models.The results reveal that water quality of both stations has been maintained betweenⅠ~Ⅲ level for the last few years.Spatial temperature and turbidity differences are insignificant while pH,EC,DO,IMn,NH3-N and TP show a significant difference.Pollutants con-centration differences of Heyuan linjiang station were temporally in-significant except for DO.Differences at Huizhou jiangtan station are temporally significant except for NH3-N.Through Pearson correlation analysis,water temperature is closely related to DO but not with entropic species.DO at Huizhou Jiantan station is intimately re-lated to water temperature,TP and IMn.Finally,through factor analysis,three major factors are extracted to reflect water physical-chemical characteristics,surface runoff and human effects on water quality.