Sensitivity Analysis of AquaCrop Model Parameters for Winter Wheat under Different Meteorological Conditions Based on the EFAST Method
文献类型： 外文期刊
作者： Xing, Huimin 1 ; Sun, Qi 1 ; Li, Zhiguo 1 ; Wang, Zhen 1 ; Feng, Haikuan 5 ;
作者机构： 1.Shangqiu Normal Univ, Coll Surveying & Planning, Shangqiu 476000, Peoples R China
2.Shangqiu Normal Univ, Henan Agr Remote Sensing Big Data Dev & Innovat La, Shangqiu 476000, Peoples R China
3.Shangqiu Normal Univ, Engn Technol Res Ctr Remote Sensing Big Data & Sma, Shangqiu 476000, Peoples R China
4.Shangqiu Normal Univ, Henan Engn Technol Res Ctr Ecol Protect & Manageme, Shangqiu 476000, Peoples R China
5.Beijing Acad Agr & Forest Sci, Informat Technol Res Ctr, Beijing 100097, Peoples R China
关键词： winter wheat; biomass; sensitivity analysis; AquaCrop model
期刊名称：POLISH JOURNAL OF ENVIRONMENTAL STUDIES （ 影响因子：1.3； 五年影响因子：1.4 ）
ISSN： 1230-1485
年卷期： 2025 年 34 卷 1 期
页码：
收录情况： SCI
摘要： To analyze the global sensitivity of winter wheat parameters using the AquaCrop model on a global scale, the extended Fourier amplitude sensitivity test (EFAST) was utilized to identify parameter sensitivity differences in different regions and meteorological conditions represented by eight stations in Henan Province, including Zhengzhou, Anyang, Shangqiu, Luanchuan, Nanyang, Xuchang, Zhumadian, and Xinyang. The results showed that: (1) the sensitivity of crop parameters is little affected by meteorological conditions for biomass, and the sensitivity parameters of the eight regions were consistent; there were minimum growing degrees required for total biomass production ( stbio ), normalized water productivity (wp), maximum canopy cover in fraction soil cover (mcc), crop coefficient when the canopy was complete but prior to senescence (kcb), Growing degree-days (GDD)-from sowing to emergence (eme), and GGD-increase in canopy cover (cgc); (2) for canopy cover, the most sensitive parameters were mcc, cgc, soil surface covered by an individual seedling at 90% emergence (ccs), and other parameters were more sensitive in early growth stage of winter wheat; (3) for yield, GDD-from sowing to flowering (flo) was the most sensitive parameter. The results of this study will provide support for the use of the AquaCrop model to investigate crop management at the local level.
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