气候变化领域集成服务门户(CCPortal): Effects of double cropping on summer climate of the North China Plain and neighbouring regions

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DOI	10.1038/NCLIMATE2266
	Effects of double cropping on summer climate of the North China Plain and neighbouring regions
	Jeong, Su-Jong; Ho, Chang-Hoi; Piao, Shilong; Kim, Jinwon; Ciais, Philippe; Lee, Yun-Bok; Jhun, Jong-Ghap; Park, Seon Ki
通讯作者	Ho, CH (通讯作者)
发表日期	2014
ISSN	1758-678X
EISSN	1758-6798
起始页码	615
结束页码	619
卷号	4 期号:7
英文摘要	The North China Plain (NCP) is one of the most important agricultural regions in Asia and produces up to 50% of the cereal consumed in China each year(1,2). To meet increasing food demands without expanding croplands, annual agricultural practice in much of the NCP has changed from single to double cropping(3,4). The impact of double cropping on the regional climate, through biophysical feedbacks caused by changes in land surface conditions, remains largely unknown. Here we show that observed surface air temperatures during the inter-cropping season (June and July) are 0.40 degrees C higher over double cropping regions (DCRs) than over single cropping regions (SCRs), with increases in the daily maximum temperature as large as 1.02 degrees C. Using regional climate modelling, we attribute the higher temperatures in DCRs to reduced evapotranspiration during the inter-cropping period. The higher surface temperatures in June and July affect low-level circulation and, in turn, rainfall associated with the East Asian monsoon over the NCP and neighbouring countries. These findings suggest that double cropping in the NCP can amplify the magnitude of summertime climate changes over East Asia.
关键词	GLOBAL LAND-COVER FOOD SECURITY VARIABILITY ATMOSPHERE CROPLANDS MONSOON
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000338837400029
来源期刊	NATURE CLIMATE CHANGE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258409
推荐引用方式 GB/T 7714	Jeong, Su-Jong,Ho, Chang-Hoi,Piao, Shilong,et al. Effects of double cropping on summer climate of the North China Plain and neighbouring regions[J]. 中国科学院青藏高原研究所,2014,4(7).
APA	Jeong, Su-Jong.,Ho, Chang-Hoi.,Piao, Shilong.,Kim, Jinwon.,Ciais, Philippe.,...&Park, Seon Ki.(2014).Effects of double cropping on summer climate of the North China Plain and neighbouring regions.NATURE CLIMATE CHANGE,4(7).
MLA	Jeong, Su-Jong,et al."Effects of double cropping on summer climate of the North China Plain and neighbouring regions".NATURE CLIMATE CHANGE 4.7(2014).