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2024 , Vol. 47 >Issue 12: 2005 - 2016

DOI: https://doi.org/10.12118/j.issn.1000-6060.2024.114

生物与环境

宁夏典型粮食作物生产水足迹时空演变及节水潜力评价

  • 高亚苗 ,
  • 陈浩楠 ,
  • 王芳 ,
  • 南雄雄 ,
  • 陈红翔 ,
  • 李文慧
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  • 1.宁夏大学地理科学与规划学院，宁夏 银川 750021
    2.教育部中阿旱区特色资源与环境治理国际合作联合实验室，宁夏 银川 750021
    3.林木资源高效生产全国重点实验室，宁夏 银川 750002
    4.宁夏师范大学资源环境与生命科学学院，宁夏 固原 756000
高亚苗（1999-），女，硕士研究生，主要从事水土资源高效利用与生态环境保护等方面的研究. E-mail: gaoym11@stu.nxu.edu.cn
王芳（1983-），女，副教授，主要从事水土资源高效利用等方面的研究. E-mail: fangwang0820@nxu.edu.cn

收稿日期: 2024-02-25

  修回日期: 2024-05-12

  网络出版日期: 2025-01-02

基金资助

宁夏留学回国人员创新创业项目(202303);国家自然科学基金项目(42067022);国家自然科学基金项目(41761066);自治区教育厅高等学校科学研究项目(NYG2022083)

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Spatio-temporal evolution of water footprint of typical grain crops and evaluation of water-saving potential in Ningxia

  • GAO Yamiao ,
  • CHEN Haonan ,
  • WANG Fang ,
  • NAN Xiongxiong ,
  • CHEN Hongxiang ,
  • LI Wenhui
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  • 1. School of Geographical Science and Planning, Ningxia University, Yinchuan 750021, Ningxia, China
    2. China-Arab Joint International Research Laboratory for Featured Resources and Environmental Governance in Arid Region, Yinchuan 750021, Ningxia, China
    3. State Key Laboratory of Efficient Production of Forest Resources, Yinchuan 750002, Ningxia, China
    4. College of Resources, Environment and Life Sciences, Ningxia Normal University, Guyuan 756000, Ningxia, China

Received date: 2024-02-25

  Revised date: 2024-05-12

  Online published: 2025-01-02

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摘要

近年来，宁夏回族自治区（简称宁夏）粮菜产能显著提升，但其作为全国水资源最匮乏省份之一，评估农业生产水足迹及其节水潜力有助于推进农业水资源可持续利用。以5种典型粮食作物生产水足迹为对象，结合Mann-Kendall趋势检验法探究2006—2020年该区域粮食作物生产水足迹时空演变趋势，利用节水潜力模型进一步揭示作物节水潜力。结果表明：（1）近15 a宁夏典型粮食作物生产水足迹总体呈下降趋势，其中固原市作物生产水足迹下降了42.97%，粮食作物生产蓝绿水足迹总体呈波动变化趋势。（2）各作物生产蓝水和灰水足迹均呈下降趋势。同一作物生产绿水足迹在市际间存在较大差异，大豆对生产绿水足迹贡献率最大。（3）典型年作物生产工程节水潜力、蓝水和绿水真实节水潜力分别可达44.81%、46.43%和45.10%。研究结果可为宁夏节水农业可持续发展提供理论参考。

关键词： 作物生产水足迹; 时空演变; 节水潜力; 宁夏

本文引用格式

高亚苗 , 陈浩楠 , 王芳 , 南雄雄 , 陈红翔 , 李文慧 . 宁夏典型粮食作物生产水足迹时空演变及节水潜力评价[J]. 干旱区地理, 2024 , 47(12) : 2005 -2016 . DOI: 10.12118/j.issn.1000-6060.2024.114

Abstract

In recent years, the grain and vegetable production capacity of Ningxia Hui Autonomous Region (Ningxia) has increased significantly. However, as one of the most water-scarce provinces in China, evaluating the water footprint of agricultural production and its water-saving potential is crucial for promoting the sustainable use of agricultural water resources. Focusing on the production water footprint of five typical food crops, this study explored the spatiotemporal evolution trends of the production water footprint in the region from 2006 to 2020 using the Mann-Kendall trend test. Additionally, a water-saving potential model was employed to further analyze the water-saving potential of these crops. The results indicated that: (1) The production water footprint of typical grain crops in Ningxia exhibited a decreasing trend over the past 15 years, with the production water footprint in Guyuan City decreasing by 42.97%. (2) The blue water and gray water footprints of each crop showed a consistent downward trend, while the green water footprint of the same crop varied significantly across cities, with soybean contributing the most to the green water footprint. (3) The water-saving potential of crop engineering, true water-saving potential of blue water and true water-saving potential of green water could reach 44.81%, 46.43% and 45.10%, respectively, in typical year crop production projects. These findings provide a theoretical foundation for the sustainable development of water-saving agriculture in Ningxia.

Key words： crop production water footprint; spatiotemporal evolution; water saving potential; Ningxia

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