IDEAS home Printed from https://ideas.repec.org/a/gam/jlands/v11y2022i8p1255-d881730.html
   My bibliography  Save this article

Effects of Heavy Degradation on Alpine Meadows: Soil N 2 O Emission Rates and Meta-Analysis in the Tibetan Plateau

Author

Listed:
  • Huidan He

    (College of Tourism, Resources and Environment, Zaozhuang University, Zaozhuang 277160, China
    Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China)

  • Jingbin Zhu

    (College of Tourism, Resources and Environment, Zaozhuang University, Zaozhuang 277160, China
    Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China)

  • Yangong Du

    (Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
    College of Geography, Qinghai Normal University, Xining 810001, China)

  • Jiapeng Qu

    (Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China)

  • Chen Kelong

    (College of Geography, Qinghai Normal University, Xining 810001, China)

  • Huakun Zhou

    (Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China)

Abstract

Heavy grassland degradation is evident across the Tibetan Plateau. However, atmospheric nitrous oxide (N 2 O) emission rates and their underlying driving mechanisms in the southeast regions and across the Tibetan Plateau remain unclear. We analyzed the N 2 O emission rates of heavily degraded and undegraded alpine meadow soil incubation using gas chromatography in three river sources and meta-analysis methods across the Tibetan Plateau. The N 2 O emission rates of the heavily degraded and control meadows were respectively 4.29 ± 0.64 and 3.27 ± 0.53 g kg −1 h −1 in the southeast Tibetan Plateau ( p < 0.01), indicating an increase of 31.16% on the N 2 O flux of heavy degradation. Heavy degradation increased N 2 O emission rates by 0.55 ± 0.14 (95% confidence interval: 0.27–0.83) through meta-analysis. High degradation increased by approximately 71.6% compared with that of the control. The water-filled pore space (WFPS) significantly influenced the N 2 O emission rate based on the moderator test ( p < 0.05). The mixed-effect model results revealed that WFPS, soil nitrate, and bulk soil could explain 59.90%, 16.56%, and 15.19% of the variation in the N 2 O emission rates between the control and heavily degraded meadows, respectively. In addition, the N 2 O emission rates of heavily degraded meadows can be reduced by increasing WFPS and bulk density, and by reducing the soil nitrate content.

Suggested Citation

  • Huidan He & Jingbin Zhu & Yangong Du & Jiapeng Qu & Chen Kelong & Huakun Zhou, 2022. "Effects of Heavy Degradation on Alpine Meadows: Soil N 2 O Emission Rates and Meta-Analysis in the Tibetan Plateau," Land, MDPI, vol. 11(8), pages 1-8, August.
  • Handle: RePEc:gam:jlands:v:11:y:2022:i:8:p:1255-:d:881730
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2073-445X/11/8/1255/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2073-445X/11/8/1255/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Benjamin Wolf & Xunhua Zheng & Nicolas Brüggemann & Weiwei Chen & Michael Dannenmann & Xingguo Han & Mark A. Sutton & Honghui Wu & Zhisheng Yao & Klaus Butterbach-Bahl, 2010. "Grazing-induced reduction of natural nitrous oxide release from continental steppe," Nature, Nature, vol. 464(7290), pages 881-884, April.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Jingyi Dong & Liming Tian & Jiaqi Zhang & Yinghui Liu & Haiyan Li & Qi Dong, 2022. "Grazing Intensity Has More Effect on the Potential Nitrification Activity Than the Potential Denitrification Activity in An Alpine Meadow," Agriculture, MDPI, vol. 12(10), pages 1-17, September.
    2. Shrestha, Shailesh & Hennessy, Thia & Abdalla, Mohamed & Forristal, Dermot & Jones, Michael B., 2014. "Determining Short Term Responses of Irish Dairy Farms under Climate Change," Journal of International Agricultural Trade and Development, Journal of International Agricultural Trade and Development, vol. 63(3).
    3. Xiang LIU & Zhiming QI & Quan WANG & Zhiwen MA & Lanhai LI, 2017. "Effects of biochar addition on CO2 and CH4 emissions from a cultivated sandy loam soil during freeze-thaw cycles," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 63(6), pages 243-249.
    4. Guangshuai Wang & Yueping Liang & Fei Ren & Xiaoxia Yang & Zhaorong Mi & Yang Gao & Timothy S. George & Zhenhua Zhang, 2018. "Greenhouse Gas Emissions from the Tibetan Alpine Grassland: Effects of Nitrogen and Phosphorus Addition," Sustainability, MDPI, vol. 10(12), pages 1-17, November.
    5. Shrestha, Shailesh & Hennessy, Thia & Abdalla, Mohamed & Forristal, Dermot & Jones, Michael B., 2014. "Determining Short Term Responses of Irish Dairy Farms under Climate Change," German Journal of Agricultural Economics, Humboldt-Universitaet zu Berlin, Department for Agricultural Economics, vol. 63(03), pages 1-13, September.

    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:jlands:v:11:y:2022:i:8:p:1255-:d:881730. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.