气候变化领域集成服务门户(CCPortal): Satellite evidence on the trade-offs of the food-water–air quality nexus over the breadbasket of India

CCPortal

DOI	10.1016/j.gloenvcha.2021.102394
	Satellite evidence on the trade-offs of the food-water–air quality nexus over the breadbasket of India
	Singha M.; Dong J.; Ge Q.; Metternicht G.; Sarmah S.; Zhang G.; Doughty R.; Lele S.; Biradar C.; Zhou S.; Xiao X.
发表日期	2021
ISSN	0959-3780
卷号	71
英文摘要	Access to food, water, and good air quality is indispensable for human life, as reflected in various United Nations Sustainable Development Goals (SDGs); however, pursuing food security may pose threats to water security and/or air quality. An important case is northwest India including the Punjab and Haryana states, which is the ‘breadbasket’ of India with a significantly increasing paddy rice area. The rapid expansion of rice farming has stressed groundwater resources and impacted air quality. Satellite observations have the potential to provide data for better decisions on food security, water storage, and air pollution, which would be vital for regional sustainable development. Based on observations from multiple satellites from 2001 to 2018, we found that paddy rice expansion (+22%) increased groundwater depletion (−1.50 cm/yr), residue burning (+500%), and air pollution (+29%, PM2.5) in the breadbasket of India. Moreover, satellite observations showed changes in these interactions after the enactment of a groundwater protection policy in 2009, which decelerated groundwater depletion (−1.20 cm/yr) due to delayed rice planting and harvest dates (∼15d); the latter elevated air pollution in November (+29%, PM2.5). Our finding stresses the need to reconcile the trade-offs and consider the interactions among SDGs 2 (food), 3 (good health), 6 (clean water), and 11 (air quality in cities), in policy-making for sustainable development. An efficient crop residue ultilization and management system, bottom-up groundwater use regulations, and cropping system shift towards less water-consuming crops are critically required to resolve the trade-offs of the food-water–air quality nexus in the northern India. Our study also showcases remote sensing approaches and methods to support and aid the achievement of the SDGs and track their progreses to support regional sustainable development. © 2021 Elsevier Ltd
关键词	Air pollution Food security GRACE Groundwater India Paddy rice
语种	英语
scopus关键词	air quality; atmospheric pollution; crop residue; cropping practice; food quality; food security; policy making; rice; satellite data; Sustainable Development Goal; trade-off; United Nations; water quality; water use; Haryana; India; Punjab [India]; Satellites
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249566
作者单位	Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW 2052, Australia; College of Land Science and Technology, China Agricultural University, Beijing, 100193, China; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States; Centre for Environment & Development, Ashoka Trust for Research in Ecology & The Environment, Bengaluru, 560064, India; International Center for Agricultural Research in Dry Areas (ICARDA), CGIAR Research Center, Cairo, 11742, Egypt; Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964, United States; Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK 73019, United States
推荐引用方式 GB/T 7714	Singha M.,Dong J.,Ge Q.,等. Satellite evidence on the trade-offs of the food-water–air quality nexus over the breadbasket of India[J],2021,71.
APA	Singha M..,Dong J..,Ge Q..,Metternicht G..,Sarmah S..,...&Xiao X..(2021).Satellite evidence on the trade-offs of the food-water–air quality nexus over the breadbasket of India.Global Environmental Change,71.
MLA	Singha M.,et al."Satellite evidence on the trade-offs of the food-water–air quality nexus over the breadbasket of India".Global Environmental Change 71(2021).