干旱区生态环境知识资源中心(Arid): Exploring optimal straw mulch thickness during freeze-thaw periods in the central Yellow River basin: Field observations and numerical modelling

Arid

DOI	10.1002/ird.2949
	Exploring optimal straw mulch thickness during freeze-thaw periods in the central Yellow River basin: Field observations and numerical modelling
	Xue, Jing; Lin, Jiangtong; Chen, Junfeng; Cui, Lihong; Zheng, Xiuqing
通讯作者	Xue, J
来源期刊	IRRIGATION AND DRAINAGE
ISSN	1531-0353
EISSN	1531-0361
出版年	2024
英文摘要	Straw mulch has been widely used to inhibit soil evaporation in semi-arid regions, but little attention has been given to exploring optimal straw mulch thicknesses for suppressing soil evaporation under different meteorological conditions in seasonally frozen soil regions. By combining field observations and numerical modelling, the optimal straw mulch thickness for inhibiting soil evaporation under different meteorological conditions was determined. Field experiments indicated that the cumulative soil evaporation associated with straw mulch thicknesses of 1-3 cm was 40%, 53% and 65% lower than that of bare land during freeze-thaw cycles. Compared with that of bare fields, the cumulative soil evaporation simulated by SHAW (simultaneous heat and water) decreased from 9% to 82% and from 36% to 88% during the 2017-2018 and 2018-2019 periods, respectively, when the straw mulch thickness ranged from 1 to 20 cm. The cumulative soil evaporation tended to stabilize until the straw mulch thickness reached 14.3 cm under weather conditions with low humidity, high wind speed and sunshine and 14.5 cm under weather conditions with high or moderate humidity, low or moderate wind speed and sunshine from 1987 to 2017. The results have implications for reducing nonproductive soil evaporation and improving agricultural water management in seasonally frozen regions. Le paillis de paille a ete largement utilise pour empecher l'evaporation du sol dans les regions semi-arides, mais peu d'attention a ete donnee a l'exploration d'epaisseurs optimales de paillis de paille pour supprimer l'evaporation du sol dans differentes conditions meteorologiques dans les regions de sol gele saisonnier. En combinant les observations sur le terrain et la modelisation numerique, on a determine l'epaisseur optimale du paillis pour empecher l'evaporation du sol dans differentes conditions meteorologiques. Les experiences sur le terrain ont indique que l'evaporation cumulative du sol associee a des paillis de paille d'une epaisseur de 1 a 3 cm etait inferieure de 40%, 53% et 65% a celle associee a des terres denudees pendant les cycles de gel et de degel. De meme, par rapport a celle des champs denudes, l'evaporation cumulative cumulee du sol simulee par SHAW (chaleur et eau simultanees) a diminue de 9% a 82% et de 36% a 88% au cours des periodes 2017-2018 et 2018-2019, respectivement, lorsque l'epaisseur du paillis de paille variait de 1 a 20 cm. L'evaporation cumulative du sol a eu tendance a se stabiliser jusqu'a ce que l'epaisseur du paillis de paille atteigne 14,3 cm dans des conditions meteorologiques caracterisees par une faible humidite, une vitesse du vent elevee et un ensoleillement et 14,5 cm dans des conditions meteorologiques caracterisees par une humidite elevee ou moderee, une vitesse du vent faible ou moderee et un ensoleillement de 1987 a 2017. Les resultats ont des repercussions sur la reduction de l'evaporation non productive du sol et l'amelioration de la gestion de l'eau agricole dans les regions gelees de facon saisonniere.
英文关键词	clustering analysis seasonal freeze-thaw period SHAW model soil evaporation straw mulch paillis de paille evaporation du sol periode saisonniere de gel et de degel modele SHAW analyse par grappes
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001187906400001
WOS关键词	HETAO IRRIGATION DISTRICT ; WATER-USE EFFICIENCY ; SOIL-WATER ; SIMULTANEOUS HEAT ; GROUNDWATER ; EVAPORATION ; YIELD ; TEMPERATURE ; STORAGE ; CYCLES
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404285
推荐引用方式 GB/T 7714	Xue, Jing,Lin, Jiangtong,Chen, Junfeng,et al. Exploring optimal straw mulch thickness during freeze-thaw periods in the central Yellow River basin: Field observations and numerical modelling[J],2024.
APA	Xue, Jing,Lin, Jiangtong,Chen, Junfeng,Cui, Lihong,&Zheng, Xiuqing.(2024).Exploring optimal straw mulch thickness during freeze-thaw periods in the central Yellow River basin: Field observations and numerical modelling.IRRIGATION AND DRAINAGE.
MLA	Xue, Jing,et al."Exploring optimal straw mulch thickness during freeze-thaw periods in the central Yellow River basin: Field observations and numerical modelling".IRRIGATION AND DRAINAGE (2024).