螳螂川河流水体氟化物和总磷时空分异特征  

Spatial and Temporal Variation of Fluoride and TotalPhosphorus in Mantis River-Pudu River Basin

作　　者：田雨玄 林益超 朱彬 杨春艳 崔祥芬 黄建洪[1] 邓晓庆 黄斌[1] TIAN Yuxuan;LIN Yichao;ZHU Bin;YANG Chunyan;CUI Xiangfen;IHUANG Jianhong;DENG Xiaoqing;HUANG Bin(Faculy of Environmental Science and Engineering,Kunming University of Science and Technoogy,Kunming 650500,China;Yunnan Ecological and Environmental Monitoring Center,Water Environment Monitoring Unit,Kunming 650034,China)

机构地区：[1]昆明理工大学环境科学与工程学院,云南昆明650500 [2]云南省生态环境监测中心,水环境监测室,云南昆明650034

出　　处：《昆明理工大学学报（自然科学版）》2023年第4期123-133,共11页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(42067056)。

摘　　要：螳螂川-普渡河系属金沙江一级支流,是滇池唯一出口,其水质对长江干流水质具有重要的意义.然而,流域水体中氟化物和磷两种特征污染物的时空分布信息尚不明确.本文基于流域内2014—2021年云南省地表水国/省控断面监测数据,利用空间分析手段探索氟化物(F)和总磷(TP)质量浓度的空间变异特征,并进一步运用时间序列法分析和预测两种特征污染物的时间变化趋势,以期为理清和改善保护螳螂川-普渡河流域水质,构建长江上游水质安全屏障提供科学依据.结果表明:(1)流域内所有监测断面中,Ⅰ~Ⅲ类水质断面仅占21.7%,劣Ⅴ类占45.2%.(2)空间上看,F和TP质量浓度存在较强空间变异性.Mann-Kendall趋势检验显示,除普渡河桥断面F含量、温泉大桥断面TP含量持续上升外,其余断面均呈显著下降趋势.(3)利用ARIMA模型对F和TP质量浓度进行预测,发现所有断面预测值均符合监测数据的变化趋势.(4)总体而言,上游河流F和TP质量浓度普遍低于中下游地区;全流域污染物在枯水期最低,丰水期达到最高.(5)针对河流污染来源和特征,建议通过截污清淤、跨区联防联控、提标改造、农村环境综合整治、种植养殖污染管控和合理规划城市产业建设等措施进行流域污染治理.The Mantis River-Pudu River(MRPR),as a first-order tributary of the Jinsha River and the soleoutlet of the Dianchi River,plays a crucial role in the water quality of the main stream of the Yangtze River.Thewater quality of the MRPR significantly affects the overall water quality of the Yangtze River main stream.Fluor-ide(F)and total phosphorus(TP)represent key pollutants in the MRPR basin;however,their spatiotemporalcharacteristics remain unclear.Based on data from national and provincial monitoring stations in Yunnan from2014 to 2021,this study aims to(1)investigate the spatial variability characteristics of mass concentrations of to-tal phosphorus(TP)and fluoride(F)using spatial analysis techniques and(2)analyze and predict the tempo-ral trends of these two pollutants using time series methods.The findings of this study aim to contribute to estab-lishing a scientific foundation for water quality protection in the Mantis River-Pudu River basin and the develop-ment of a water quality safety barrier in the upper reaches of the Yangtze River.The results of the study reveal thefollowing key findings:(1)Among all the monitoring sections in the basin,only 21.7%were classified as waterquality sections I to I,while a significant portion of 45.2%fll under the lower-quality category of grade V.(2)Spatially,pronounced spatial variability was observed in the mass concentrations of fluoride(F)and totalphosphorus(TP).The Mann-Kendall trend test indicated that,with the exception of the increasing trend ob-served in the F content of the Pudu River Bridge section and the TP content of the Hot Spring Bridge section,asignificant decreasing trend was observed in all other sections.(3)Employing the ARIMA model to predict themass concentrations of F and TP,it was observed that the predicted values for all sections aligned with the trendexhibited by the previously measured values.(4)Overall,the upper river displayed lower F and TP mass concen-trations compared to the middle and lower reaches.Additionally,the pollutant levels in the ba

关 键 词：螳螂川-普渡河流域 总磷 氟化物 时间序列 时空分布 ARIMA模型 

分 类 号：X824[环境科学与工程—环境工程]