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Impact of Industrial Pollution of Cadmium on Traditional Crop Planting Areas and Land Management: A Case Study in Northwest China

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  • Yu Song

    (State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
    Hebei Key Laboratory of Agroecological Safety, Hebei University of Environmental Engineering, Qinhuangdao 066102, China)

  • Wenlong Li

    (State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China)

  • Yating Xue

    (Resources and Environment College, Chengdu University of Information Technology, Chengdu 610225, China)

  • Huakun Zhou

    (Key Laboratory of Cold Regions Restoration Ecology, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China)

  • Wenying Wang

    (Department of Life Sciences, Qinghai Normal University, Xining 810008, China)

  • Chenli Liu

    (State Key Laboratory of Grassland Agro-Ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China)

Abstract

Cadmium in soils not only reduces crop yield and quality but also threatens the safety of human health and wildlife due to bioaccumulation. Baiyin City, a typical industrial region located in northwest China, was evaluated to examine the spatial distribution of cadmium. We simulated soil cadmium concentrations in the laboratory, based on levels found at local sampling sites, to examine how both Medicago sativa and Zea mays plants accumulate cadmium. The experimental results revealed that cadmium in all soil samples exceeded China’s national standard levels for general farmland; in addition, cadmium accumulation in all tissues of M. sativa and Z. mays exceeded the national fodder standards. Therefore, M. sativa and Z. mays from the study area should not be used for fodder. However, about 36% of the planting area of M. sativa and Z. mays can be used for phytoextraction because of cadmium accumulation. For soil pollution management, we suggest dividing the study area into three different regions, including a non-planting region, a phytoremediation region, and a planting region. Our soil management model can effectively help local people to avoid food safety risks and to realize sustainable development of soil utilization in contaminated areas.

Suggested Citation

  • Yu Song & Wenlong Li & Yating Xue & Huakun Zhou & Wenying Wang & Chenli Liu, 2021. "Impact of Industrial Pollution of Cadmium on Traditional Crop Planting Areas and Land Management: A Case Study in Northwest China," Land, MDPI, vol. 10(12), pages 1-20, December.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:12:p:1364-:d:699492
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    References listed on IDEAS

    as
    1. Li Tan & Bin Yang & Zhibin Xue & Zhanqi Wang, 2021. "Assessing Heavy Metal Contamination Risk in Soil and Water in the Core Water Source Area of the Middle Route of the South-to-North Water Diversion Project, China," Land, MDPI, vol. 10(9), pages 1-24, September.
    2. Dimitrios E. Alexakis, 2021. "Multielement Contamination of Land in the Margin of Highways," Land, MDPI, vol. 10(3), pages 1-13, February.
    3. Salman A. H. Selmy & Salah H. Abd Al-Aziz & Raimundo Jiménez-Ballesta & Francisco Jesús García-Navarro & Mohamed E. Fadl, 2021. "Soil Quality Assessment Using Multivariate Approaches: A Case Study of the Dakhla Oasis Arid Lands," Land, MDPI, vol. 10(10), pages 1-22, October.
    4. Xiaogang Ding & Zhengyong Zhao & Zisheng Xing & Shengting Li & Xiaochuan Li & Yanmei Liu, 2021. "Comparison of Models for Spatial Distribution and Prediction of Cadmium in Subtropical Forest Soils, Guangdong, China," Land, MDPI, vol. 10(9), pages 1-21, August.
    5. Dimitrios E. Alexakis, 2020. "Contaminated Land by Wildfire Effect on Ultramafic Soil and Associated Human Health and Ecological Risk," Land, MDPI, vol. 9(11), pages 1-16, October.
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