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Studies on the Spatiotemporal Variability of River Water Quality and Its Relationships with Soil and Precipitation: A Case Study of the Mun River Basin in Thailand

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  • Zhonghe Zhao

    (State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Gaohuan Liu

    (State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China)

  • Qingsheng Liu

    (State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China)

  • Chong Huang

    (State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China)

  • He Li

    (State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China)

Abstract

Human activities can affect soil nutrients, thereby influencing river water quality. The spatial pattern of precipitation also impacts distributions of water quality. In this paper, we employed a method that combines point survey, soil, and water quality data to analyze the spatial relationships between precipitation, soil nutrient and water quality in the basin on the basis of field surveys and laboratory analysis. The ordinary kriging method was applied to interpolate the precipitation and soil data, and the spatial pattern was analyzed. The water samples on the main stream and soil samples in the field were collected during both the dry and rainy seasons to analyze the water quality and soil nutrients. The results indicate: (1) The water quality in the dry season is better than that in the rainy season, the water quality in the upper reaches is better than that in the lower reaches, and agricultural activity is the direct source of water pollution. (2) The precipitation in the rainy and dry seasons is differente and the dilution effect of precipitation on pollutant concentrations and transport of water flow affect the spatial distribution of water quality. (3) There is a significant difference in the spatial pattern of soil nutrients between the dry and rainy seasons, and the soil nutrient content and the surface runoff directly affect the water quality. Soil nutrients are affected by human activities, and they potentially act as nonpoint source (NPS) pollution in this river basin. To improve the water quality, suitable agriculture measures need to be implemented.

Suggested Citation

  • Zhonghe Zhao & Gaohuan Liu & Qingsheng Liu & Chong Huang & He Li, 2018. "Studies on the Spatiotemporal Variability of River Water Quality and Its Relationships with Soil and Precipitation: A Case Study of the Mun River Basin in Thailand," IJERPH, MDPI, vol. 15(11), pages 1-19, November.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:11:p:2466-:d:180671
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    References listed on IDEAS

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    1. Xiao-Bo Luan & Pu-Te Wu & Shi-Kun Sun & Xiao-Lei Li & Yu-Bao Wang & Xue-Rui Gao, 2018. "Impact of Land Use Change on Hydrologic Processes in a Large Plain Irrigation District," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 32(9), pages 3203-3217, July.
    2. Angela Gorgoglione & Fabián A. Bombardelli & Bruno J. L. Pitton & Lorence R. Oki & Darren L. Haver & Thomas M. Young, 2018. "Role of Sediments in Insecticide Runoff from Urban Surfaces: Analysis and Modeling," IJERPH, MDPI, vol. 15(7), pages 1-15, July.
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    Cited by:

    1. Haoyu Tian & Guo-An Yu & Ling Tong & Renzhi Li & He Qing Huang & Arika Bridhikitti & Thayukorn Prabamroong, 2019. "Water Quality of the Mun River in Thailand—Spatiotemporal Variations and Potential Causes," IJERPH, MDPI, vol. 16(20), pages 1-19, October.
    2. Rui Qu & Guilin Han & Man Liu & Xiaoqiang Li, 2019. "The Mercury Behavior and Contamination in Soil Profiles in Mun River Basin, Northeast Thailand," IJERPH, MDPI, vol. 16(21), pages 1-16, October.
    3. Xiaoqiang Li & Guilin Han & Man Liu & Kunhua Yang & Jinke Liu, 2019. "Hydro-Geochemistry of the River Water in the Jiulongjiang River Basin, Southeast China: Implications of Anthropogenic Inputs and Chemical Weathering," IJERPH, MDPI, vol. 16(3), pages 1-16, February.
    4. Zhonghe Zhao & Kun Liu & Bowei Yu & Gaohuan Liu & Youxiao Wang & Chunsheng Wu, 2023. "Modeling of Agricultural Nonpoint-Source Pollution Quantitative Assessment: A Case Study in the Mun River Basin, Thailand," Sustainability, MDPI, vol. 15(13), pages 1-16, June.
    5. Yanhong Li & Liquan Xie & Tsung-chow Su, 2019. "Bio-Capture of Solid Pollutants by Vegetation Canopy Cave in Shallow Water Flow," IJERPH, MDPI, vol. 16(23), pages 1-16, December.
    6. Jinke Liu & Guilin Han & Xiaolong Liu & Man Liu & Chao Song & Qian Zhang & Kunhua Yang & Xiaoqiang Li, 2019. "Impacts of Anthropogenic Changes on the Mun River Water: Insight from Spatio-Distributions and Relationship of C and N Species in Northeast Thailand," IJERPH, MDPI, vol. 16(4), pages 1-14, February.
    7. Xiaoqiang Li & Guilin Han & Man Liu & Chao Song & Qian Zhang & Kunhua Yang & Jinke Liu, 2019. "Hydrochemistry and Dissolved Inorganic Carbon (DIC) Cycling in a Tropical Agricultural River, Mun River Basin, Northeast Thailand," IJERPH, MDPI, vol. 16(18), pages 1-13, September.
    8. Haeseong Oh & Jung-Hyun Choi, 2022. "Changes in the Dissolved Organic Matter Characteristics Released from Sediment According to Precipitation in the Namhan River with Weirs: A Laboratory Experiment," IJERPH, MDPI, vol. 19(9), pages 1-17, April.
    9. Eun-A Hwang & In-Hwan Cho & Ha-Kyung Kim & Chen Yi & Baik-Ho Kim, 2023. "The Relationship between Rainfall Pattern and Epilithic Diatoms in Four Streams of Central-Western Korea for Three Years (2013–2015)," IJERPH, MDPI, vol. 20(5), pages 1-20, February.

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