气候变化领域集成服务门户(CCPortal): Sustainable irrigation based on co-regulation of soil water supply and atmospheric evaporative demand

CCPortal

DOI	10.1038/s41467-021-25254-7
	Sustainable irrigation based on co-regulation of soil water supply and atmospheric evaporative demand
	Zhang J.; Guan K.; Peng B.; Pan M.; Zhou W.; Jiang C.; Kimm H.; Franz T.E.; Grant R.F.; Yang Y.; Rudnick D.R.; Heeren D.M.; Suyker A.E.; Bauerle W.L.; Miner G.L.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Irrigation is an important adaptation to reduce crop yield loss due to water stress from both soil water deficit (low soil moisture) and atmospheric aridity (high vapor pressure deficit, VPD). Traditionally, irrigation has primarily focused on soil water deficit. Observational evidence demonstrates that stomatal conductance is co-regulated by soil moisture and VPD from water supply and demand aspects. Here we use a validated hydraulically-driven ecosystem model to reproduce the co-regulation pattern. Specifically, we propose a plant-centric irrigation scheme considering water supply-demand dynamics (SDD), and compare it with soil-moisture-based irrigation scheme (management allowable depletion, MAD) for continuous maize cropping systems in Nebraska, United States. We find that, under current climate conditions, the plant-centric SDD irrigation scheme combining soil moisture and VPD, could significantly reduce irrigation water use (−24.0%) while maintaining crop yields, and increase economic profits (+11.2%) and irrigation water productivity (+25.2%) compared with MAD, thus SDD could significantly improve water sustainability. © 2021, The Author(s).
语种	英语
scopus关键词	soil water; aridity; crop yield; cropping practice; irrigation system; soil moisture; soil water; stomatal conductance; vapor pressure; water stress; water supply; water use; air temperature; Article; carbon fixation; climate change; crop production; cropping system; dynamics; evaporation; greenhouse; growing season; harvest; irrigation (agriculture); maize; precipitation; soil moisture; stomatal conductance; water stress; water supply; Nebraska; United States
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250616
作者单位	Agroecosystem Sustainability Center, Institute for Sustainability, Energy, and Environment, University of Illinois at Urbana Champaign, Urbana, IL, United States; College of Agricultural, Consumer and Environmental Sciences, University of Illinois at Urbana Champaign, Urbana, IL, United States; National Center for Supercomputing Applications, University of Illinois at Urbana Champaign, Urbana, IL, United States; Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, United States; Center for Western Weather and Water Extremes, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States; School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, United States; Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada; Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE, United States; Department of Horticulture and Landscape Architecture, Colorado State Univers...
推荐引用方式 GB/T 7714	Zhang J.,Guan K.,Peng B.,et al. Sustainable irrigation based on co-regulation of soil water supply and atmospheric evaporative demand[J],2021,12(1).
APA	Zhang J..,Guan K..,Peng B..,Pan M..,Zhou W..,...&Miner G.L..(2021).Sustainable irrigation based on co-regulation of soil water supply and atmospheric evaporative demand.Nature Communications,12(1).
MLA	Zhang J.,et al."Sustainable irrigation based on co-regulation of soil water supply and atmospheric evaporative demand".Nature Communications 12.1(2021).