气候变化领域集成服务门户(CCPortal): On the role of rainfall deficits and cropping choices in loss of agricultural yield in Marathwada, India

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DOI	10.1088/1748-9326/ab93fc
	On the role of rainfall deficits and cropping choices in loss of agricultural yield in Marathwada, India
	Zachariah M.; Mondal A.; Das M.; Achutarao K.M.; Ghosh S.
发表日期	2020
ISSN	17489318
卷号	15 期号:9
英文摘要	Crop loss and ensuing social crises can be detrimental for the agriculture-driven economy of India. Though some studies identify country-wide increasing temperatures as the dominant factor for crop loss, the agro-climatic diversity within the country necessitates an understanding of the influence of climate variability on yields at regional scales. We report a complex interplay among rainfall, temperature and cropping choices, with a focus on the drought-prone Marathwada region in Maharashtra. Our analysis based on observations, as well as statistical and process-based modelling experiments, and temperature projections of 1.5 °C and 2 °C warmer worlds show that for the two major cropping seasons, rainfall deficit is the primary cause of crop failure, as compared to rising temperatures. The gradual shift from drought-resilient food crops, such as sorghum and pearl-millet to water-intensive cash crops such as sugarcane in recent years, is seemingly responsible for aggravating this crisis. Our findings warrant strategies promoting drought-resilient food crops, that will be useful, not only for mitigating the immediate agrarian crisis, but also for curbing impending threats to food security in the region under future climate change. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	climate change; crop yield; DSSAT; mixed-effects linear regression
语种	英语
scopus关键词	Agricultural robots; Climate change; Drought; Food supply; Rain; Agricultural yields; Climate variability; Climatic diversity; Increasing temperatures; Marathwada region; Process-based modelling; Rising temperatures; Temperature projection; Crops; agricultural production; agrometeorology; cropping practice; farmers knowledge; precipitation assessment; precipitation intensity; yield response; India; Maharashtra; Marathwada; Pennisetum glaucum
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153820
作者单位	Department of Civil Engineering, Indian Institute of Technology Bombay, Mumbai, India; Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Mumbai, India; Center for Atmospheric Sciences, Indian Institute of Technology Delhi, Delhi, India
推荐引用方式 GB/T 7714	Zachariah M.,Mondal A.,Das M.,et al. On the role of rainfall deficits and cropping choices in loss of agricultural yield in Marathwada, India[J],2020,15(9).
APA	Zachariah M.,Mondal A.,Das M.,Achutarao K.M.,&Ghosh S..(2020).On the role of rainfall deficits and cropping choices in loss of agricultural yield in Marathwada, India.Environmental Research Letters,15(9).
MLA	Zachariah M.,et al."On the role of rainfall deficits and cropping choices in loss of agricultural yield in Marathwada, India".Environmental Research Letters 15.9(2020).