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Use of Remote Sensing to Assess the Water-Saving Effect of Winter Wheat Fallow

Author

Listed:
  • Liang Zhai

    (Research Center for Natural Resources Surveying and Monitoring, Chinese Academy of Surveying and Mapping, Beijing 100036, China
    Key Laboratory of Surveying and Mapping Science and Geospatial Information Technology of Ministry of Natural Resources, Beijing 100036, China)

  • Xianghui Gu

    (National Marine Data and Information Service, Tianjin 300171, China)

  • Yajing Feng

    (Research Center for Natural Resources Surveying and Monitoring, Chinese Academy of Surveying and Mapping, Beijing 100036, China
    Key Laboratory of Surveying and Mapping Science and Geospatial Information Technology of Ministry of Natural Resources, Beijing 100036, China)

  • Dongqing Wu

    (Faculty of Geomatics, Lanzhou Jiaotong University, Lanzhou 730070, China
    National-Local Joint Engineering Research Center of Technologies and Applications for National Geographic State Monitoring, Lanzhou 730070, China
    Gansu Provincial Engineering Laboratory for National Geographic State Monitoring, Lanzhou 730070, China)

  • Tengbo Wang

    (Research Center for Natural Resources Surveying and Monitoring, Chinese Academy of Surveying and Mapping, Beijing 100036, China
    Key Laboratory of Surveying and Mapping Science and Geospatial Information Technology of Ministry of Natural Resources, Beijing 100036, China)

Abstract

Winter wheat fallow policy has a greater effect on water resource management, and the water-saving effect in the fallow process of winter wheat can provide data support for precise water resource utilization planning. In order to evaluate the water resource consumption of winter wheat and the related effect from winter wheat fallow, this study searched the changing trends of cultivated land evapotranspiration under five different scenarios through the object-oriented extraction method and a SEBS model based on multi-source data. The results indicated that the evapotranspiration during winter wheat growing period was higher than that of winter wheat fallow land, and there was no big difference in evapotranspiration between the fallow land during harvesting and the emergence of new crops. The evapotranspiration of winter wheat was higher than that of various fallow land, and the evapotranspiration of abandoned land was higher than other fallow land in the winter wheat growing season. From this point, this study concludes that the fallow land policy can effectively reduce evapotranspiration during the growing of winter wheat, which is conducive to the sustainable exploiting of water resources.

Suggested Citation

  • Liang Zhai & Xianghui Gu & Yajing Feng & Dongqing Wu & Tengbo Wang, 2021. "Use of Remote Sensing to Assess the Water-Saving Effect of Winter Wheat Fallow," Sustainability, MDPI, vol. 13(18), pages 1-14, September.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:18:p:10192-:d:634083
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    References listed on IDEAS

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    1. Xu, Yueqing & Mo, Xingguo & Cai, Yunlong & Li, Xiubin, 2005. "Analysis on groundwater table drawdown by land use and the quest for sustainable water use in the Hebei Plain in China," Agricultural Water Management, Elsevier, vol. 75(1), pages 38-53, July.
    2. Xie, Hualin & Cheng, Lingjuan & Lu, Hua, 2018. "Farmers’ responses to the winter wheat fallow policy in the groundwater funnel area of China," Land Use Policy, Elsevier, vol. 73(C), pages 195-204.
    3. Li, Jiamin & Inanaga, Shinobu & Li, Zhaohu & Eneji, A. Egrinya, 2005. "Optimizing irrigation scheduling for winter wheat in the North China Plain," Agricultural Water Management, Elsevier, vol. 76(1), pages 8-23, July.
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