干旱区生态环境知识资源中心(Arid): Soil hydrothermal modeling in a dry alpine agricultural zone: The effect of soil airflow

Arid

DOI	10.1016/j.geoderma.2021.115354
	Soil hydrothermal modeling in a dry alpine agricultural zone: The effect of soil airflow
	Wang, Jiaxin; Gao, Xiaodong; Zhao, Xining; Wan, Hua; Zeng, Yijian; Yu, Lianyu; Robinson, Brett; Zhou, Yanqing; Siddique, Kadambot H. M.; Wu, Pute
通讯作者	Gao, XD (corresponding author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2021
卷号	402
英文摘要	Acquiring soil hydrothermal information using process-based models is important for agricultural management in dry alpine regions where in situ data collection is difficult. However, few modeling studies have considered the soil airflow transport mechanism for arid regions especially, the presence of dry airflow in soil can affect water and heat transport. Here, we adopt an airflow-coupling hydrological model, Simultaneous Transfer of Energy, Mass, and Momentum in Unsaturated Soil (STEMMUS), to simulate soil hydrothermal processes and evapotranspiration dynamics in a dry farmland on the Tibetan Plateau (TP). The effect of airflow on the simulations was carefully assessed. Our results suggested that STEMMUS can reliably capture daily observations-the average values for the index of agreement (d) in the 20-100 cm soil profile were 0.94 for soil temperature, 0.83 for soil moisture, 0.72 for soil evaporation and 0.83 for crop evapotranspiration, respectively, during the validation period. The impacts of considering airflow transport occurred when water inputs reached 22.8 mm, showing a positive relationship with increasing precipitation/irrigation. Incorporating airflow in the model showed minor differences but basically improved the modeling precision for soil moisture (reduction in root mean squared error (RMSE) values ranging from 0 to 95.9%), evapotranspiration (reduction in RMSE values ranging from 0 to 97.8%) and evaporation (reduction in RMSE values ranging from 0 to 99.3%) following rainfall/irrigation events. These findings provide sights into the role of airflow in the complex soil physical processes, and highlight that rainfall/irrigation inputs are a major factor affecting simulations when airflow is considered.
英文关键词	Hydrothermal dynamics Soil airflow Arid agricultural region Tibetan Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000688581600012
WOS关键词	TIBETAN PLATEAU ; NUMERICAL-SIMULATION ; INFILTRATION-RATE ; VAPOR TRANSPORT ; WATER DYNAMICS ; CLIMATE-CHANGE ; MOISTURE ; HEAT ; EVAPORATION ; FIELD
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	西北农林科技大学 ; University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363384
作者单位	[Wang, Jiaxin; Gao, Xiaodong; Zhao, Xining; Wan, Hua; Zhou, Yanqing; Wu, Pute] Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China; [Gao, Xiaodong; Zhao, Xining] Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China; [Wang, Jiaxin; Gao, Xiaodong; Zhao, Xining; Wan, Hua; Zhou, Yanqing; Wu, Pute] Northwest A&F Univ, Inst Water Saving Agr Arid Areas China, Yangling 712100, Shaanxi, Peoples R China; [Zeng, Yijian; Yu, Lianyu] Univ Twente, Fac Geoinformat & Earth Observat ITC, Enschede, Netherlands; [Robinson, Brett] Lincoln Univ, Dept Soil & Phys Sci, Christchurch 7647, New Zealand; [Siddique, Kadambot H. M.] Univ Western Australia, UWA Inst Agr, Crawley, WA 6009, Australia
推荐引用方式 GB/T 7714	Wang, Jiaxin,Gao, Xiaodong,Zhao, Xining,et al. Soil hydrothermal modeling in a dry alpine agricultural zone: The effect of soil airflow[J]. 西北农林科技大学, University of Western Australia,2021,402.
APA	Wang, Jiaxin.,Gao, Xiaodong.,Zhao, Xining.,Wan, Hua.,Zeng, Yijian.,...&Wu, Pute.(2021).Soil hydrothermal modeling in a dry alpine agricultural zone: The effect of soil airflow.GEODERMA,402.
MLA	Wang, Jiaxin,et al."Soil hydrothermal modeling in a dry alpine agricultural zone: The effect of soil airflow".GEODERMA 402(2021).