干旱区生态环境知识资源中心(Arid): Adjusting sowing window to mitigate climate warming effects on forage oats production on the Tibetan Plateau

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DOI	10.1016/j.agwat.2024.108712
	Adjusting sowing window to mitigate climate warming effects on forage oats production on the Tibetan Plateau
	Ma, Qianhu; You, Yongliang; Shen, Yuying; Wang, Zikui
通讯作者	Wang, ZK
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2024
卷号	293
英文摘要	Adjusting the sowing date represents an effective strategy to mitigate the adverse effects of climate change on crop production across the world. However, its effect on oats (Avena sativa) forage production on the Tibetan Plateau is still unclear. This study aimed to determine the optimal sowing window for forage oats in the semi-arid area of the Tibetan Plateau by assessing forage yield and water productivity (WP) across historical and future climate scenarios. APSIM-oats was calibrated and validated using two-year field data on oats phenology, biomass yield, and soil moisture. Five oats sowing windows were designed in the scenario analysis, namely, early sowing 20 days (April 23), early sowing 10 days (May 3), conventional sowing (May 13), late sowing 10 days (May 23), and late sowing 20 days (June 2). Under historical climate conditions, conventional sowing (as practiced by farmers) resulted in the highest biomass yield and WP. However, future climate trends led to an average decrease of 16.0 % and 13.5 % in oats forage yield and WP, respectively, averaged over RCP4.5 and RCP8.5. Nevertheless, late sowing mitigated the adverse effects of the climate risk. In comparison to conventional sowing, delaying sowing by 20 days increased oats biomass yield, ET, and WP in both near and far future under both RCPs. Rainfall during the growing season of oats demonstrated a significant positive correlation with biomass yield under both RCPs, emphasizing the importance of synchronizing the sowing date with the rainfall pattern to minimize oats yield penalty. Therefore, late sowing of oats in the Tibetan Plateau region proved to be an effective approach to counteract the negative impacts of climate change and minimize oats yield losses. This study provides valuable insights for forage oats production management in the semi-arid areas of the Tibetan Plateau and offers strategies to cope with future climate risks.
英文关键词	Sowing window Oats Forage production Water use efficiency APSIM Climate change
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001177570400001
WOS关键词	METEOROLOGICAL FACTORS ; FARMING SYSTEMS ; MAIZE YIELD ; WHEAT YIELD ; WATER ; STRESS ; TEMPERATURE ; NITROGEN ; APSIM ; MODEL
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/2XILL650/402649
推荐引用方式 GB/T 7714	Ma, Qianhu,You, Yongliang,Shen, Yuying,et al. Adjusting sowing window to mitigate climate warming effects on forage oats production on the Tibetan Plateau[J],2024,293.
APA	Ma, Qianhu,You, Yongliang,Shen, Yuying,&Wang, Zikui.(2024).Adjusting sowing window to mitigate climate warming effects on forage oats production on the Tibetan Plateau.AGRICULTURAL WATER MANAGEMENT,293.
MLA	Ma, Qianhu,et al."Adjusting sowing window to mitigate climate warming effects on forage oats production on the Tibetan Plateau".AGRICULTURAL WATER MANAGEMENT 293(2024).