气候变化领域集成服务门户(CCPortal): Strong Agricultural Resilience to 2022 Southern China Drought

CCPortal

DOI	10.1029/2023EF004243
	Strong Agricultural Resilience to 2022 Southern China Drought
	Cao, Yijing; Zhang, Yongqiang; Tian, Jing; Li, Xiaojie; Tang, Zixuan; Yang, Xuening; Zhang, Xuanze; Ma, Ning
发表日期	2024
EISSN	2328-4277
起始页码	12
结束页码	3
卷号	12 期号:3
英文摘要	Meteorological drought, especially when influenced by human activities, significantly impacts agriculture. We assessed the Yangtze River Basin (YRB)'s crop ecosystem resilience during the 2022 southern China drought. Using the elasticity framework, we quantified crop Leaf Area Index (LAI) changes with meteorological factors and human activities (irrigation) in the YRB. Our study covered maize, wheat, early and late-season rice, evaluating model accuracy with and without irrigation. Results indicate high accuracy (R-2 > 0.8, p < 0.05) in simulating LAI changes, notably improved with irrigation. Irrigation emerged as the primary driver of LAI changes in the past two decades, except for solar radiation's impact on maize. In 2022, irrigation crucially influenced LAI changes, particularly in rice varieties. Early-season rice and late-season rice saw over 40% contribution from irrigation, while maize and wheat responded mainly to precipitation and radiation. Overall, 2022 yields remained stable, with late-season rice showing an apparent increase. Drought timing correlated with maize, wheat, and early-season rice yields, consistent with natural patterns. Conversely, late-season rice exhibited the opposite pattern due to artificial irrigation, impacting 58% of the growing areas in 2022. The study offers insights into investigating farmland ecosystems responding to extreme droughts.
英文关键词	agricultural resilience; southern China drought; climatic factors; human activities; crop LAI
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001189417100001
来源期刊	EARTHS FUTURE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/294095
作者单位	Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Cao, Yijing,Zhang, Yongqiang,Tian, Jing,et al. Strong Agricultural Resilience to 2022 Southern China Drought[J],2024,12(3).
APA	Cao, Yijing.,Zhang, Yongqiang.,Tian, Jing.,Li, Xiaojie.,Tang, Zixuan.,...&Ma, Ning.(2024).Strong Agricultural Resilience to 2022 Southern China Drought.EARTHS FUTURE,12(3).
MLA	Cao, Yijing,et al."Strong Agricultural Resilience to 2022 Southern China Drought".EARTHS FUTURE 12.3(2024).