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Emerging Negative Warming Impacts on Tibetan Crop Yield
文献摘要:
Preserving Tibet's unique history and cultural heritage relies on the sustainability of the Tibetan crop-lands, which are characterized by highland barley, the only cereal crop cultivated over 4000 m above sea level. Yet it is unknown how these croplands will respond to climate change. Here, using yield statis-tics from 1985 to 2015, we found that the impact of temperature anomalies on the Tibetan crop yield shifted from nonsignificant (P>0.10) in the 1980s and 1990s to significantly negative (P<0.05) in recent years. Meanwhile, the apparent sensitivity of the crop yield to temperature anomalies almost doubled, from (–0.13 ± 0.20) to (–0.22 ± 0.14) t.ha-1.℃–1. The emerging negative impacts of higher temperatures suggest an increasing vulnerability of Tibetan croplands to warmer climate. With global warming scenar-ios of+1.5 or+2.0 ℃ above the pre-industry level, the temperature sensitivities of crop yield may further increase to (–0.33 ± 0.10) and (–0.51 ± 0.18) t.ha-1.℃–1, respectively, making the crops 2–3 times more vulnerable to warmer temperatures than they are today.
文献关键词:
作者姓名:
Tsechoe Dorji;Shilong Piao;Xuhui Wang;Chuang Zhao;Baohua Liu;Anping Chen;Shiping Wang;Tao Wang
作者机构:
Key Laboratory of Alpine Ecology and Biodiversity,Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China;Center for Excellence in Tibetan Plateau Earth Science,Chinese Academy of Sciences,Beijing 100085,China;Sino–French Institute for Earth System Science,College of Urban and Environmental Sciences,Peking University,Beijing 100871,China;Department of Biology,Colorado State University,Fort Collins,CO 80523,USA
文献出处:
引用格式:
[1]Tsechoe Dorji;Shilong Piao;Xuhui Wang;Chuang Zhao;Baohua Liu;Anping Chen;Shiping Wang;Tao Wang-.Emerging Negative Warming Impacts on Tibetan Crop Yield)[J].工程(英文),2022(07):163-168
A类:
nonsignificant,of+1,or+2
B类:
Emerging,Negative,Warming,Impacts,Tibetan,Crop,Yield,Preserving,unique,history,cultural,heritage,relies,sustainability,which,characterized,by,highland,barley,only,cereal,cultivated,over,above,sea,level,Yet,unknown,how,these,croplands,will,respond,climate,change,Here,using,yield,statis,tics,from,we,found,that,anomalies,shifted,1980s,1990s,significantly,negative,recent,years,Meanwhile,apparent,sensitivity,almost,doubled,emerging,impacts,higher,temperatures,suggest,increasing,vulnerability,warmer,With,global,warming,scenar,ios,pre,industry,sensitivities,may,further,increase,respectively,making,crops,times,more,vulnerable,than,they,today
AB值:
0.616566
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