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

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 relate...

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Bibliographic Details
Published in:Sustainability 2021-09, Vol.13 (18), p.10192
Main Authors: Zhai, Liang, Gu, Xianghui, Feng, Yajing, Wu, Dongqing, Wang, Tengbo
Format: Article
Language:English
Subjects:
Abandoned land
Agricultural production
Algorithms
Classification
Cultivated lands
Evapotranspiration
Fallow land
Groundwater
Growing season
Harvesting
Humidity
Methods
Phenology
Precipitation
Remote sensing
Resource consumption
Resource management
Resource utilization
Satellites
Surface water
Sustainability
Time series
Triticum aestivum
Vegetation
Water conservation
Water management
Water resources
Water resources management
Wheat
Winter wheat
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Summary: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.
ISSN:2071-1050
2071-1050
DOI:10.3390/su131810192