Temporal and spatial variations of soil C, N contents and C:N stoichiometry in the major grain-producing region of the North China Plain

• Huan Yang,

  Roles Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

  Affiliation School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou, Henan, China

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• Xuan Song ,

  Roles Conceptualization, Funding acquisition, Writing – review & editing

  * E-mail: songxuan@zzu.edu.cn

  Affiliation School of Software, Zhengzhou University, Zhengzhou, Henan, China

  https://orcid.org/0000-0001-9455-3850

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• Yun Zhao,

  Roles Data curation, Formal analysis, Investigation

  Affiliation School of Software, Zhengzhou University, Zhengzhou, Henan, China

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• Weitong Wang,

  Roles Data curation, Investigation

  Affiliation School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou, Henan, China

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• Zhennan Cheng,

  Roles Conceptualization, Formal analysis

  Affiliation School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou, Henan, China

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• Qi Zhang,

  Roles Investigation

  Affiliation School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou, Henan, China

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• Daoquan Cheng

  Roles Data curation

  Affiliation Station of Soil and Fertilizer Extension Service, Zhengzhou, Henan, China

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