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[目的]评价黔南地区水体环境质量。[方法]采用主成分分析法,对黔南地区11个水体单元的水质监测数据进行综合评价。[结果]确定了黔南地区水质指标间的相关关系,从中提取2个主成分,通过综合得分可以评判水体环境质量的优劣,与实际情况十分吻合。[结论]主成分分析方法较为客观地反映了水体环境质量,为水体环境综合治理以及居民生活饮用水水源的开发利用提供科学依据。
[Objective] To evaluate the environmental quality of water bodies in southern Guizhou. [Method] Principal component analysis was used to evaluate the water quality monitoring data of 11 water body units in southern Guizhou. [Result] The correlation between water quality indicators in Qiannan area was determined. Two principal components were extracted from them, and the comprehensive score was used to judge the quality of water environment quality, which was in good agreement with the actual situation. [Conclusion] The principal component analysis method objectively reflects the environmental quality of water body and provides a scientific basis for the comprehensive management of water environment and the development and utilization of drinking water sources for residents.