IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v12y2022i7p1036-d864005.html
   My bibliography  Save this article

Grazing Horse Effects on Desert Grassland Soil Gross Nitrification and Denitrification Rates in Northern China

Author

Listed:
  • Xiaonan Wang

    (College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China)

  • Chengjie Wang

    (College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China)

  • Chengyang Zhou

    (College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China)

  • Shining Zuo

    (College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China)

  • Yixin Ji

    (College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China)

  • Qiezhuo Lamao

    (College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China)

  • Ding Huang

    (College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China)

Abstract

The aim of this study was to investigate the effects of grazing on soil gross nitrification (GN) and denitrification (DN) rates and soil environmental factors on GN and DN in the desert grassland of northern China. Soil samples were collected from July to November in 2017 and March to June in 2018, with 5-5 soil samples taken from three enclosures (CK) vs. three heavy-grazing (G) randomized treatment blocks. We determined: (1) the soil moisture (SM), pH, bulk density (BD), total nitrogen (TN), soil organic carbon (SOC), and inorganic nitrogen (IN, NH 4 + -N, and NO 3 − -N) content, and (2) GN and DN. The relationship between the changes in GN, DN, and the soil environment was analyzed using stepwise multiple-regression analysis. Gross nitrification, DN, pH, BD, C/N, SM, IN, and NO 3 − -N varied significantly by month. Grazing induced significant increases in SM and NO 3 − only. GN in the CK treatment was related to NH 4 + -N and NO 3 − -N, while GN in the G treatment was related to NH 4 + -N and SM. DN in the CK treatment was related to NH 4 + -N, while DN in the G treatment was related to C/N. Additionally, GN and DN had obvious seasonal variations and reached a maximum in July. This highlights the different underlying mechanisms that affect soil GN and DN and the dynamics, particularly in the desert grassland system.

Suggested Citation

  • Xiaonan Wang & Chengjie Wang & Chengyang Zhou & Shining Zuo & Yixin Ji & Qiezhuo Lamao & Ding Huang, 2022. "Grazing Horse Effects on Desert Grassland Soil Gross Nitrification and Denitrification Rates in Northern China," Agriculture, MDPI, vol. 12(7), pages 1-12, July.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:7:p:1036-:d:864005
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/12/7/1036/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2077-0472/12/7/1036/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jagris:v:12:y:2022:i:7:p:1036-:d:864005. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.