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为了解武夷山风景名胜区流域内水质状况及其影响因素,在2008—2009年间对武夷山国家风景名胜区流域8个采样点水质污染物指标进行了逐月监测,研究该流域地表水质的季节变化特征并进行评价。结果表明,该流域水体中的pH值在6.45～7.80,冬、春季较高,夏、秋季较低;NH_3-N、NO_3~-—N、TN、TP质量浓度从大到小依次为冬季、春季、夏季、秋季,COD_(Mn)从大到小依次为夏季、冬季、春季、秋季;相对而言,水质随季节的变化以秋季较好,冬季较差。流域内水文特征、生态环境和人类、农业活动对溪流水质有一定的影响,尤其水体中TP、TN质量浓度较高,说明农业面源污染的影响明显。
In order to understand the water quality and its influencing factors in Wuyishan scenic spot watershed, the water quality indicators of eight sampling points in Wuyishan National Scenic Area were monitored monthly from 2008 to 2009, and the seasonal variations of surface water quality were studied. Evaluation. The results showed that the pH value of the watershed was 6.45-7.80, which was higher in winter and spring and lower in summer and autumn. The mass concentrations of NH_3-N, NO_3 ~ -N, TN and TP were in winter, In spring, summer and autumn, the order of COD Mn is as follows: summer, winter, spring and autumn; in contrast, the change of water quality with season is better in autumn and worse in winter. The hydrological characteristics, ecological environment, human and agricultural activities in the river basin have certain impacts on the water quality of the stream, especially the high concentrations of TP and TN in the water body, indicating that the impact of agricultural non-point source pollution is obvious.