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Article

Simulations of the Soil Evaporation and Crop Transpiration Beneath a Maize Crop Canopy in a Humid Area

1
Jiangsu Provincial Key Laboratory of Agricultural Meteorology, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
2
Jiangsu Climate Center, Nanjing 210041, China
*
Author to whom correspondence should be addressed.
Academic Editors: Rangjian Qiu and Zhenchang Wang
Water 2021, 13(14), 1975; https://doi.org/10.3390/w13141975
Received: 25 May 2021 / Revised: 13 July 2021 / Accepted: 14 July 2021 / Published: 19 July 2021
(This article belongs to the Special Issue Soil Moisture Content and Crop Production Research)
Soil evaporation (Es) and crop transpiration (Tc) are important components of water balance in cropping systems. Comparing the accurate calculation by crop models of Es and Tc to the measured evaporation and transpiration has significant advances to the optimal configuration of water resource and evaluation of the accuracy of crop models in estimating water consumption. To evaluate the adaptation of APSIM (Agricultural Production Systems simulator) in calculating the Es and Tc in Nanjing, APSIM model parameters, including the meteorological and soil parameters, were measured from a two-year field experiment. The results showed that: (1) The simulated evaporation was basically consistent with the measured Es, and the regulated model can effectively present the field evaporation in the whole maize growth period (R2 = 0.85, D = 0.96, p < 0.001); and (2) The trend of the simulated Tc can present the actual Tc variation, but the accuracy was not as high as the evaporation (R2 = 0.74, D = 0.87, p < 0.001), therefore, the simulation of water balance process by APSIM will be helpful in calculating Es and Tc in a humid area of Nanjing, and its application also could predict the production of maize fields in Nanjing. View Full-Text
Keywords: soil evaporation; crop transpiration; APSIM model; summer maize soil evaporation; crop transpiration; APSIM model; summer maize
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MDPI and ACS Style

Guo, T.; Liu, C.; Xiang, Y.; Zhang, P.; Wang, R. Simulations of the Soil Evaporation and Crop Transpiration Beneath a Maize Crop Canopy in a Humid Area. Water 2021, 13, 1975. https://doi.org/10.3390/w13141975

AMA Style

Guo T, Liu C, Xiang Y, Zhang P, Wang R. Simulations of the Soil Evaporation and Crop Transpiration Beneath a Maize Crop Canopy in a Humid Area. Water. 2021; 13(14):1975. https://doi.org/10.3390/w13141975

Chicago/Turabian Style

Guo, Tianting, Chunwei Liu, Ying Xiang, Pei Zhang, and Ranghui Wang. 2021. "Simulations of the Soil Evaporation and Crop Transpiration Beneath a Maize Crop Canopy in a Humid Area" Water 13, no. 14: 1975. https://doi.org/10.3390/w13141975

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