CAJ | 학술논문

监测了2013年3月到12月天津市内7个点位的水质变化情况，分析了叶绿素a(Chl-a)质量浓度的时空变化特征和主要环境因子的相关关系．结果表明，叶绿素a(Chl-a)质量浓度夏季最高，秋冬季次之，春季最低．空间分布上海河、南运河、津河叶绿素a质量浓度依次升高，湖泊中叶绿素a质量浓度相对河流较低．叶绿素a(Chl-a)质量浓度与水温呈显著正相关关系，与pH、CODMn呈极显著正相关关系，与溶解氧(DO)呈显著负相关关系．lg(Chl-a)与 lg(TP)呈极显著正相关关系，与 lg(TN)，lg(TN/TP)呈极显著负相关关系，叶绿素 a(Chl-a)质量浓度与氨氮不存在明显的相关关系．这表明磷是天津河湖水体富营养化的限制性因子．
감측료2013년3월도12월천진시내7개점위적수질변화정황，분석료협록소a(Chl-a)질량농도적시공변화특정화주요배경인자적상관관계．결과표명，협록소a(Chl-a)질량농도하계최고，추동계차지，춘계최저．공간분포상해하、남운하、진하협록소a질량농도의차승고，호박중협록소a질량농도상대하류교저．협록소a(Chl-a)질량농도여수온정현저정상관관계，여pH、CODMn정겁현저정상관관계，여용해양(DO)정현저부상관관계．lg(Chl-a)여 lg(TP)정겁현저정상관관계，여 lg(TN)，lg(TN/TP)정겁현저부상관관계，협록소 a(Chl-a)질량농도여안담불존재명현적상관관계．저표명린시천진하호수체부영양화적한제성인자．
The authors of this paper monitored water quality change at seven sites in Tianjin from March to December in 2013 to analyze the temporal and spatial variation of the mass concentration of chlorophyll-a in the water and its correlation with environmental factors. The results indicated an obvious temporal and spatial variation of chlorophyll-a concentration. The concentration of chlorophyll-a was highest in summer , medium in autumn and winter , lowest in spring. The chlorophyll-a concentration in the key rivers was higher than in the artificial lakes. The chlorophyll-a concentration in-creased from Haihe River to South Canal and then to Jinhe. Chlorophyll-a concentration in the lake water is relatively lower than in the river water. The relation between Chlorophyll a(Chl-a)concentration and the water temperature turned to be a significant positive correlation;the relation among Chlorophyll-a and pH,CODMn was a highly significant positive corre-lation. The relation between Chlorophyll-a and dissolved oxygen(DO)tuned to be significantly negatively correlated. The relation between lg(chl-a)and lg(TP)was a highly significant positive correlation. The relation between lg(TN)and lg(TN/TP)showed a significant negative correlation. Chlorophyll a(Chl-a)concentration and NH3-N had no obvious correla-tion. This indicates that phosphorus is a limiting factor of eutrophication in the rivers and lakes in Tianjin.