IDEAS home Printed from https://ideas.repec.org/a/eee/agiwat/v302y2024ics0378377424003196.html
   My bibliography  Save this article

Responses of soil water–root coupling and coupling effects on grapevines to irrigation methods in extremely arid region

Author

Listed:
  • Sun, Ruifeng
  • Ma, Juanjuan
  • Sun, Xihuan
  • Zheng, Lijian
  • Bai, Shijian

Abstract

Scarce rainfall and low water productivity (WP) are the primary problems constraining development of the grape industry in the extremely arid region of Xinjiang. Reducing evaporative loss and improving deep soil water use are important measures to solve this problem. In this study, a root zone irrigation (RI) method was introduced and studied in irrigation experiments in Shanshan, Xinjiang, to compare the effects of three types of irrigation emitter burial depths and furrow irrigation (FI) on soil water–root system coupling characteristics, root water uptake strategies, and leaf water physiology, yield, and quality. The results showed that RI optimized the coupling level of the soil water–root system and improved root water uptake strategies. Compared with FI, RI increased the water contribution rate of the middle and deep soil layers, resulting in an increase in the average root water uptake depth by 50.1–74.5 %. RI expanded the root water uptake range, which in turn increased the midday leaf water potential (ψm) and net photosynthetic rate (Pn) by 8.9–15.6 % and 9.9–18.9 %, respectively. Increasing the burial depth of the irrigation emitter under RI could lead to the migration of water, root, and average root water uptake depth to the deep soil, however, the ψm and Pn would also decrease. RI reduced evaporative loss and actual crop evapotranspiration (ETc act), however, the RI yield and WP were higher than those of FI by 8.6–18.7 % and 27.1–52.3 %, respectively. Moreover, RI significantly increased the soluble solid content, berry volume, and berry weight of grapes compared with that of FI. Under RI, increasing the burial depth of the irrigation emitter did not significantly affect WP, however, the yield and grape quality gradually decreased. The results showed that an irrigation emitter burial depth of 0–40 cm under RI in an extremely arid region is a scientific and reasonable irrigation method.

Suggested Citation

  • Sun, Ruifeng & Ma, Juanjuan & Sun, Xihuan & Zheng, Lijian & Bai, Shijian, 2024. "Responses of soil water–root coupling and coupling effects on grapevines to irrigation methods in extremely arid region," Agricultural Water Management, Elsevier, vol. 302(C).
    • Handle: RePEc:eee:agiwat:v:302:y:2024:i:c:s0378377424003196
    DOI: 10.1016/j.agwat.2024.108984
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0378377424003196
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.agwat.2024.108984?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    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:eee:agiwat:v:302:y:2024:i:c:s0378377424003196. 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: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/agwat .

    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.