干旱区生态环境知识资源中心(Arid): Long term response and adaptation of farmland water, carbon and nitrogen balances to climate change in arid to semi-arid regions

Arid

DOI	10.1016/j.agee.2023.108882
	Long term response and adaptation of farmland water, carbon and nitrogen balances to climate change in arid to semi-arid regions
	Li, Yue; Herbst, Michael; Chen, Zhijun; Chen, Xinguo; Xu, Xu; Xiong, Yunwu; Huang, Quanzhong; Huang, Guanhua
通讯作者	Huang, GH
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2024
卷号	364
英文摘要	Climate change poses a challenge for resource utilization and environmental pollution issues caused by agricultural production, especially in arid to semi -arid regions. Farmland water, carbon and nitrogen balances are closely related to these resource and environmental issues. Thus, the Agro-Hydrological & chemical and Crop systems simulator was used to assess the response of water, carbon and nitrogen balances to climate change in a spring wheat farmland of arid to semi -arid Northwest China and to propose adaptation strategies. Five Global Climate Models from the Coupled Model Intercomparison Project 6 and two Shared Socioeconomic Pathways (SSP1-2.6 and SSP5-8.5) were used to establish scenarios with the Agro-Hydrological & chemical and Crop systems simulator to simulate farmland water, carbon and nitrogen balances for the 2025-2100 period. Various irrigation amounts and nitrogen fertilization rates were tested as compensation strategies. Results indicated that climate change could negatively affect farmland water, carbon and nitrogen balances, especially under the SSP5-8.5 scenario. Precipitation showed an increasing trend, thus percolation increased and soil water consumption decreased from 2025 to 2100. However, for the carbon budget, although the soil carbon dioxide emissions tend to decrease, the net primary production was also significantly reduced, which resulted in declining the net ecosystem carbon budget under future climatic conditions. In addition, higher temperature and increased precipitation enhanced soil inorganic nitrogen leaching and nitrous oxide emissions but reduced ammonia volatilization from 2025 to 2100. Overall, the soil total nitrogen loss was increased over time, whereas crop nitrogen uptake was significantly reduced. In relation to the SSP1-2.6 scenario, the SSP5-8.5 scenario accelerated the increase rates of soil water percolation and total nitrogen loss over time, as well as the decrease rates of crop nitrogen uptake and net primary production over time. The negative effects caused by climate change can be mitigated by reducing irrigation and increasing nitrogen fertilization. For the SSP1-2.6 scenario, 30% irrigation reduction and 30% nitrogen fertilization increase can effectively decrease soil water percolation and the related nitrogen losses while crop nitrogen uptake, net primary production and net ecosystem carbon budget increase in relation to the current management (irrigation = 240 mm and nitrogen fertilization = 200 kg ha-1). For SSP5-8.5 the strategy with 45% irrigation reduction and 45% nitrogen fertilization increase can also decrease nitrogen losses and increase crop nitrogen uptake, net primary production and net ecosystem carbon budget.
英文关键词	Global climate models Rising temperature Water-carbon-nitrogen cycles Net ecosystem carbon budget
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001165313400001
WOS关键词	GREENHOUSE-GAS EMISSIONS ; USE EFFICIENCY ; DEFICIT IRRIGATION ; INCREASE YIELD ; SANDY SOIL ; WHEAT ; FIELD ; FERTILIZATION ; MAIZE ; HETAO
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402700
推荐引用方式 GB/T 7714	Li, Yue,Herbst, Michael,Chen, Zhijun,et al. Long term response and adaptation of farmland water, carbon and nitrogen balances to climate change in arid to semi-arid regions[J],2024,364.
APA	Li, Yue.,Herbst, Michael.,Chen, Zhijun.,Chen, Xinguo.,Xu, Xu.,...&Huang, Guanhua.(2024).Long term response and adaptation of farmland water, carbon and nitrogen balances to climate change in arid to semi-arid regions.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,364.
MLA	Li, Yue,et al."Long term response and adaptation of farmland water, carbon and nitrogen balances to climate change in arid to semi-arid regions".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 364(2024).