中国农业科技导报 ›› 2023, Vol. 25 ›› Issue (8): 138-147.DOI: 10.13304/j.nykjdb.2022.0090

• 生物制造 资源生态 • 上一篇    

近30年黄淮海农作区冬小麦水足迹分布变化

赵明宇1(), 贾浩2, 石晓宇1, 潘义1, 黄妤韵1, 王凯澄1, 褚庆全1()   

  1. 1.中国农业大学农学院,北京 100193
    2.中国农业博物馆,北京 100026
  • 收稿日期:2022-02-07 接受日期:2022-03-27 出版日期:2023-08-20 发布日期:2023-09-07
  • 通讯作者: 褚庆全
  • 作者简介:赵明宇 E-mail:1352445828@qq.com
  • 基金资助:
    国家级大学生创新训练项目(20211009004)

Distribution of Winter Wheat Water Footprint in Huang-Huai-Hai Farming Region in Recent 30 Years

Mingyu ZHAO1(), Hao JIA2, Xiaoyu SHI1, Yi PAN1, Yuyun HUANG1, Kaicheng WANG1, Qingquan CHU1()   

  1. 1.College of Agronomy and Biotechnology,China Agricultural University,Beijing 100193,China
    2.China Agricultural Museum,Beijing 100026,China
  • Received:2022-02-07 Accepted:2022-03-27 Online:2023-08-20 Published:2023-09-07
  • Contact: Qingquan CHU

摘要:

为量化冬小麦生产对水资源的消耗,基于水足迹理论和方法,在县域尺度上,科学分析了1985—2015年黄淮海农作区冬小麦生产水足迹的时空分布和变化特征,并对水足迹冷热点分布趋势进行了探讨。结果表明,黄淮海农作区冬小麦水足迹总量为1 168.54×108 m3,在空间上呈现南部区域高、北部区域低的特点。冬小麦蓝水足迹呈现北高南低的空间格局,而绿水和灰水足迹则表现为南高北低。1985—2015年,黄淮海农作区冬小麦水足迹增加了54.8%,其中蓝水足迹和绿水足迹变化较小,而灰水足迹的占比增加了29.1%;空间分布上蓝、绿、灰水足迹均呈现北部降低、南部升高的变化趋势。冬小麦水足迹总量的重心呈现向西南方向迁移的趋势,但整体变化幅度较小。近30年冬小麦水足迹在全局和局部均呈现空间集聚趋势,热点区域在2.5亚区扩大,冷点区域在2.2亚区扩大。以上研究结果为黄淮海农作区冬小麦布局优化和农业水资源高效利用与管理提供了科学依据。

关键词: 黄淮海农作区, 水足迹, 冬小麦, 时空分布, 冷热点分析

Abstract:

To quantify the consumption of water resources for winter wheat, the spatial-temporal distribution and variation of water footprint for winter wheat were quantitatively analyzed based on the water footprint theory and method at the county scale in the Huang-Huai-Hai farming region from 1985 to 2015, and the distribution of cold and hot spot of water footprint were analyzed. The results showed that the total water footprint of winter wheat was 1 168.54×108 m3, and its spatial distribution was high in the south and low in the north. The blue water footprint of winter wheat was high in the north and low in the south, while the green water footprint and gray water footprint were high in the south and low in the north. From 1985 to 2015, the total water footprint for winter wheat increased by 54.8%. The blue and green water footprint changed little, while the grey water increased by 29.1%. The spatial distribution of blue, green and grey water footprints decreased in the north and increased in the south. The gravity center of the total water footprint for winter wheat moved to the southwest, while the overall change of which was small. In recent 30 years, the water footprint for winter wheat showed a spatial agglomeration trend in the global and local areas. The hot spot area expanded in the 2.5 sub-zone, and the cold spot area expanded in the 2.2 sub-zone. These results provided scientific basis for optimizing winter wheat distribution and efficient utilization and management of agricultural water resources in Huang-Huai-Hai farming region.

Key words: Huang-Huai-Hai farming region, water footprint, winter wheat, spatial-temporal distribution, cold and hot spot analysis

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