DOI: 10.1007/s10584-013-1009-8
Scopus记录号: 2-s2.0-84890552159
论文题名: The benefits of recent warming for maize production in high latitude China
作者: Meng Q. ; Hou P. ; Lobell D.B. ; Wang H. ; Cui Z. ; Zhang F. ; Chen X.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2014
卷: 122, 期: 2018-01-02 起始页码: 341
结束页码: 349
语种: 英语
Scopus关键词: Crop areas
; Crop managements
; Crop production
; Heilongjiang
; High Latitudes
; Maize production
; Maize yield
; Yield increase
; Cultivation
; Crops
; Zea mays
英文摘要: Latitudes above 45°N have been characterized by rates of warming faster than the global average since 1980. However, the effects of this warming on crop production at these latitudes are still unclear. Using 30-years of weather and crop management data in Heilongjiang area of China (43.4° to 53.4°N), combined with the Hybrid-Maize model, we show that that maize yields would have stagnated in most areas and decreased in the southern part of Heilongjiang if varieties were assumed fixed since 1980. However, we show that through farmers' adaptation, warming has benefitted maize production for much of this region. Specifically, farmers gradually chose longer maturing varieties, resulting in a net 7-17 % yield increase per decade. Meanwhile, farmers also rapidly expanded maize area (from 1.88 million ha in 1980 to 4.01 million ha in 2009) and the northward limit of maize area shifted by more than 290 km from ~50.8°N to ~53.4°N. Overall, benefits from warming represented 35 % of the overall yield gains in the region over this period. The results indicate substantial ongoing adaptations and benefits at north high-latitudes, although they still represent a small fraction of global maize area. The sustainability of crop area expansion in these regions remains unclear and deserves further study. © 2013 Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84984
Appears in Collections: 气候减缓与适应 气候变化事实与影响
There are no files associated with this item.
作者单位: Center for Resources, Environment and Food Security, China Agricultural University, Beijing, 100193, China; Department of Environmental Earth System Science and Center on Food Security and the Environment, Stanford University, Stanford, CA, 94305, United States; Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture, Beijing, 100081, China
Recommended Citation:
Meng Q.,Hou P.,Lobell D.B.,et al. The benefits of recent warming for maize production in high latitude China[J]. Climatic Change,2014-01-01,122(2018-01-02)