Journal of Natural Resources, Volume. 35, Issue 6, 1338(2020)
Spatiotemporal variations of surface water quality of main rivers in the upper reaches of Yongding River
Fig. 1. Overview of the study area and schematic diagram of the monitoring section
Fig. 2. Spatial variation of five-year average comprehensive pollution index in Zhangjiakou
Fig. 3. The variations of comprehensive pollution index of different sections in Zhangjiakou from 2013 to 2017
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Zhi-jiang SHAO, Bin ZHENG, Tao WANG. Spatiotemporal variations of surface water quality of main rivers in the upper reaches of Yongding River[J]. Journal of Natural Resources, 2020, 35(6): 1338
Received: Jul. 1, 2019
Accepted: --
Published Online: Oct. 17, 2020
The Author Email: Tao WANG (wangt@imde.ac.cn)