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	Climate trends and crop production in China at county scale, 1980 to 2008
	Zhang Z.; Song, X.; Tao, F. L.; Zhang, S.; Shi, W. J.
	2016
关键词	rice yields wheat yield temperature impacts decline
英文摘要	Our understanding on the impact of climate change on agricultural production, as well as the potential adaption options, can be accelerated by shedding insights on the historical experiences in the past few decades. Here, we used improved datasets of climate, crop phenology, and crop yields to investigate climate-crop yield relationships, recent trends in seasonal climate and their impact on yields of major crops (i.e., rice, wheat, maize, and soybean) by county throughout China during the period of 1980-2008. The temporal and spatial patterns of climate trends and the impact on major crop yields were presented. We found crop yields declined by up to 5-10 % or more for each 1 degrees C increase in mean temperature over crop growing period at some regions, and trends in mean temperature during the period of 1980-2008 reduced crop yields by up to 2.5-5.0 % or more at some regions. For the whole country, planting area-weighted average of yield change due to trends in mean temperature and precipitation together was about 1.16, -0.31, -0.40, and 0.11 % over the whole period for rice, wheat, maize, and soybean, respectively. Climate trends were large enough at some regions to offset a notable portion of the increases in average yields that arose from technology and other factors. The particular crops and regions that have been most affected and should be the priorities to adapt are maize and wheat in the arid and semi-arid areas of northern and northeastern China, where climate warming-induced droughts are one of major challenges.
出处	Theoretical and Applied Climatology
卷	123
期	1-2
页	291-302
收录类别	SCI
语种	英语
ISSN号	0177-798X
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/43908]
专题	生态系统网络观测与模拟院重点实验室_生态网络实验室
推荐引用方式 GB/T 7714	Zhang Z.,Song, X.,Tao, F. L.,et al. Climate trends and crop production in China at county scale, 1980 to 2008. 2016.

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