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1343-1352 .
［ 27］ 王玉娟，王树东，宋文龙，等 . GLDAS 数据产品在渭河流域潜在蒸散发模拟中的应用研究［J］. 干旱区资源
与环境，2013，27（12）：53-58 .
［ 28］ MU Q，HEINSCH F A，ZHAO M，et al . Development of a global evapotranspiration algorithm based on MODIS
and global meteorology data［J］. Remote Sensing of Environment，2007，111（4）：519-536 .
［ 29］ MU Q，ZHAO M，RUNNING S W . Improvements to a MODIS global terrestrial evapotranspiration algorithm［J］.
Remote Sensing of Environment，2011，115（8）：1781-1800 .
［ 30］ 吴桂平，刘元波，赵晓松，等 . 基于 MOD16 产品的鄱阳湖流域地表蒸散量时空分布特征［J］. 地理研究，
2013，32（4）：617-627 .
［ 31］ 李世杰 . 中国地区多种蒸散发产品验证分析及其变化机制研究［D］. 南京：南京信息工程大学，2019 .

Analysis of irrigation water based on multi-source remote sensing data
and water balance principle

LU Shihui，ZHAO Hongli，JIANG Yunzhong，HAO Zhen，ZHANG Xiangming，CHEN Genfa
（China Institute of Water Resources and Hydropower Research，Beijing 100038，China）

Abstract： The estimation of agricultural irrigation water quantity and the check of regional agricultural wa⁃
ter consumption are the difficulties of water consumption statistics and supervision. The current method
based on typical investigation and quota calculation relies on the experience of statisticians，which is easily
interfered by human factors and its accuracy is difficult to control; When the calculation method of irriga⁃
tion water based on water balance is adopted， it is difficult to obtain the regional water storage variables
and water consumption only depending on the traditional ground monitoring conditions. Remote sensing tech⁃
nology can solve the estimation problem of regional water storage variables and evapotranspiration in water
balance equation，and improve the feasibility of water balance method in calculating irrigation water. Howev⁃
er， most remote sensing products have the problems of regional applicability and accuracy， so it is neces⁃
sary to combine a variety of products to control the error through mutual verification and combination. In ad⁃
dition，there are some conceptual differences between remote sensing products and water balance elements，
which need to be matched and transformed. In this paper， an irrigation water analysis method based on
multi-source remote sensing data and water balance principle is constructed. The consistency and reliability
of multi-source remote sensing data are tested by using regional water balance equation， the corresponding
relationship between remote sensing data and water balance elements is established，and the reasonable re⁃
gional evapotranspiration data is selected， Then the total evapotranspiration was decomposed into precipita⁃
tion evapotranspiration and irrigation evapotranspiration by using field water balance， and the reasonable
range of irrigation water consumption and irrigation water consumption was calculated. The method proposed
in this paper was applied to analyze the irrigation water use in Jinan City of Shandong Province from 2012
to 2015， and compared with the agricultural water use statistics in Jinan water resources bulletin. It was
found that the results of the two were close in 2012， 2013 and 2015 when the precipitation was close to
the average for many years; In 2014，the analysis results of this paper are quite different from those of the
bulletin. Combined with the analysis of crop growth and regional groundwater level changes in the same pe⁃
riod，it is considered that there is a large amount of irrigation water in this year，and the results are rea⁃
sonable. This method can provide technical support for checking the rationality of regional irrigation water
statistics.
Keywords：gravity satellite；remote sensing evapotranspiration；water balance；irrigation water consumption；
water consumption

（责任编辑：韩 昆）

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