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Evaluation of Soil and Irrigation Water Quality in Caohai Lakeside Zone

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  • Yi Tan

    (School of Agriculture, Sun Yat-sen University, Shenzhen 523758, China
    Institute of Agricultural Resources and Environment, Guizhou Province Academy of Agricultural Sciences, Guiyang 550000, China
    China Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation, College of Re-sources and Environmental Sciences, China Agricultural University, Beijing 100193, China
    These authors contribute equally to this work.)

  • Quanquan Wei

    (Institute of Agricultural Resources and Environment, Guizhou Province Academy of Agricultural Sciences, Guiyang 550000, China
    These authors contribute equally to this work.)

  • Bangxi Zhang

    (Institute of Agricultural Resources and Environment, Guizhou Province Academy of Agricultural Sciences, Guiyang 550000, China)

  • Zijing Zheng

    (School of Agriculture, Sun Yat-sen University, Shenzhen 523758, China)

  • Jiulan Guo

    (Institute of Agricultural Resources and Environment, Guizhou Province Academy of Agricultural Sciences, Guiyang 550000, China)

  • Feifei Fan

    (Institute of Agricultural Resources and Environment, Guizhou Province Academy of Agricultural Sciences, Guiyang 550000, China)

  • Yutao Peng

    (School of Agriculture, Sun Yat-sen University, Shenzhen 523758, China)

Abstract

Due to the rapid population growth and over-application of fertilizers in the Caohai surrounding farmlands, controlling the non-point source pollution in the Caohai Lakeside Zone is significant for the local ecology balance and human health safety. A total of 54 soil and 24 irrigation water samples were collected in the Caohai Lakeside Zone to evaluate the current status of soil fertility and heavy metal pollution by measuring soil and water heavy metal content and soil physicochemical properties such as soil total nitrogen, total phosphorus, organic matter, and soil pH. These results showed that the total amounts of organic matter, nitrogen, phosphorus, potassium, and effective nutrient content in the Caohai Lakeside Zone were all at a rich level according to Chinese soil nutrient grade standard; the content of lead (Pb), chromium (Cr), cadmium (Cd), mercury (Hg), and arsenic (As) in the soil all exceeds the safety standard of Chinese classification of soil environmental quality assessment. In addition, the over-standard rates of Cd and Cr were 24.1% and 14.8%, respectively. On the whole, the comprehensive quality index (CQI) of the soil in the Caohai Lakeside Zone is 6.48, which is attributed to the heavy Cd pollution and the good soil fertility. The heavy metal content of the irrigation water met the requirements of irrigation water quality. It is feasible to use the irrigation water of Caohai Lake in the actual agricultural production process. Therefore, in terms of the comprehensive management and pollution control of Caohai, special attention should be paid to the control of Cd, Pb, As, and Hg pollution sources.

Suggested Citation

  • Yi Tan & Quanquan Wei & Bangxi Zhang & Zijing Zheng & Jiulan Guo & Feifei Fan & Yutao Peng, 2021. "Evaluation of Soil and Irrigation Water Quality in Caohai Lakeside Zone," Sustainability, MDPI, vol. 13(22), pages 1-12, November.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:22:p:12866-:d:684166
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    References listed on IDEAS

    as
    1. Juanjuan Wang & Siwen Zhang & Tianyang Que & Anna H. Kaksonen & Xiaoqing Qian & Xuliang Zhuang & Tsing Bohu, 2021. "Mitigation of Eutrophication in a Shallow Lake: The Influences of Submerged Macrophytes on Phosphorus and Bacterial Community Structure in Sediments," Sustainability, MDPI, vol. 13(17), pages 1-18, September.
    2. Gang Xiang & Xianliang Wu & Shengxing Long, 2021. "Evaluating the Heavy Metal Risk in Spinacia oleracea L. and Its Surrounding Soil with Varied Biochar Levels: A Pot Experiment," Sustainability, MDPI, vol. 13(19), pages 1-16, September.
    3. Changsong Zhang & Xueke Zang & Zhenxue Dai & Xiaoying Zhang & Ziqi Ma, 2021. "Remediation Techniques for Cadmium-Contaminated Dredged River Sediments after Land Disposal," Sustainability, MDPI, vol. 13(11), pages 1-13, May.
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    Cited by:

    1. Senlin Zhu & Qinyu Zhang & Rende Yang & Bo Chen & Bangxi Zhang & Zhen Yang & Xu Chen & Xiaomin Wang & Muyun Du & Ling Tang, 2022. "Typical JUNCAO Overwintering Performance and Optimized Cultivation Conditions of Pennisetum sp. in Guizhou, Southwest China," Sustainability, MDPI, vol. 14(7), pages 1-10, March.
    2. Xiaojia Chen & Yuanfen Li & Yue Chen & Wei Xu, 2022. "Effects of Decentralized Water Regulation on Agriculture in China: A Quasi-Natural Experiment Based on Incentives for Promoting Officials," Sustainability, MDPI, vol. 15(1), pages 1-16, December.

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