干旱区生态环境知识资源中心(Arid): Estimation of latent heat flux of pasture and maize in arid region of Northwest China based on canopy resistance modeling

Arid

DOI	10.3389/fenvs.2024.1397704
	Estimation of latent heat flux of pasture and maize in arid region of Northwest China based on canopy resistance modeling
	Wang, Biyu; Yan, Haofang; Zheng, Hexiang; Wu, Jiabin; Tian, Delong; Zhang, Chuan; Zhu, Xingye; Wang, Guoqing; Lakhiar, Imran Ali; Liu, Youwei
通讯作者	Yan, HF
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2024
卷号	12
英文摘要	Estimating the latent heat flux (lambda ET) accurately is important for water-saving irrigation in arid regions of Northwest China. The Penman-Monteith model is a commonly used method for estimating lambda ET, but the parameterization of canopy resistance in the model has been a difficulty in research. In this study, continuous observation of lambda ET during the growing period of maize and grassland in Northwest China was conducted based on the Bowen ratio energy balance (BREB) method and the Eddy covariance system (ECS). Two methods, Katerji-Perrier (K-P) and Garcia-Santos (G-A), were used to determine the canopy resistance in the Penman-Monteith model and the estimation errors and causes of the two sub-models were explored. The results indicated that both models underestimated the lambda ET of grassland and maize. The K-P model performed relatively well (R-2 > 0.94), with the root mean square errors (RMSE) equaled 37.3 and 28.1 W/m(2) for grass and maize, respectively. The accuracy of the G-A model was slightly lower than that of the K-P model, with the determination coefficient (R-2) equaled 0.90 and 0.92, and the RMSE equaled 46.2 W/m(2) (grass) and 42.1 W/m(2) (maize). The vapor pressure deficit (VPD) was the main factor affecting the accuracy of K-P and G-A sub-models. The error of two models increased with the increasing in VPD for both crops.
英文关键词	grassland maize heat flux Northwest region Penman-Monteith model
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001291518800001
WOS关键词	SURFACE-RESISTANCE ; CROP EVAPOTRANSPIRATION ; IRRIGATED MAIZE ; CONDUCTANCE ; LUCERNE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403827
推荐引用方式 GB/T 7714	Wang, Biyu,Yan, Haofang,Zheng, Hexiang,et al. Estimation of latent heat flux of pasture and maize in arid region of Northwest China based on canopy resistance modeling[J],2024,12.
APA	Wang, Biyu.,Yan, Haofang.,Zheng, Hexiang.,Wu, Jiabin.,Tian, Delong.,...&Liu, Youwei.(2024).Estimation of latent heat flux of pasture and maize in arid region of Northwest China based on canopy resistance modeling.FRONTIERS IN ENVIRONMENTAL SCIENCE,12.
MLA	Wang, Biyu,et al."Estimation of latent heat flux of pasture and maize in arid region of Northwest China based on canopy resistance modeling".FRONTIERS IN ENVIRONMENTAL SCIENCE 12(2024).