Drought losses in China might double between the 1.5 °C and 2.0 °C warming.
Drought losses in China might double between the 1.5 °C and 2.0 °C warming.
复制标题
如果气温升高 1.5 至 2.0 摄氏度,中国的干旱损失可能会增加一倍
DOI:
10.1073/pnas.1802129115
复制
发表时间:
2018-10-16
影响因子:
11.1
通讯作者:
Jiang T
中科院分区:
文献类型:
--
作者:
Su B;Huang J;Fischer T;Wang Y;Kundzewicz ZW;Zhai J;Sun H;Wang A;Zeng X;Wang G;Tao H;Gemmer M;Li X;Jiang T
We project drought losses in China under global warming of 1.5 °C and 2.0 °C. To assess future drought losses, we project the regional gross domestic product under shared socioeconomic pathways instead of using a static socioeconomic scenario. We identify increasing precipitation and evapotranspiration patterns. With increasing drought intensity and areal coverage across China, drought losses will increase considerably. The estimated losses in a sustainable development pathway at 1.5 °C warming will be 10 times higher than in the reference period 1986–2005 and three times higher than in 2006–2015. Yet, climate change mitigation, limiting the temperature increase to 1.5 °C, can considerably reduce the annual drought losses in China, compared with 2.0 °C warming. We project drought losses in China under global temperature increase of 1.5 °C and 2.0 °C, based on the Standardized Precipitation Evapotranspiration Index (SPEI) and the Palmer Drought Severity Index (PDSI), a cluster analysis method, and “intensity-loss rate” function. In contrast to earlier studies, to project the drought losses, we predict the regional gross domestic product under shared socioeconomic pathways instead of using a static socioeconomic scenario. We identify increasing precipitation and evapotranspiration pattern for the 1.5 °C and 2.0 °C global warming above the preindustrial at 2020–2039 and 2040–2059, respectively. With increasing drought intensity and areal coverage across China, drought losses will soar. The estimated loss in a sustainable development pathway at the 1.5 °C warming level increases 10-fold in comparison with the reference period 1986–2005 and nearly threefold relative to the interval 2006–2015. However, limiting the temperature increase to 1.5 °C can reduce the annual drought losses in China by several tens of billions of US dollars, compared with the 2.0 °C warming.
登录
查看更多内容
影响因子:
4.8
作者:
Dai, Aiguo;Zhao, Tianbao
通讯作者:
Zhao, Tianbao
影响因子:
4.6
作者:
Huang, Jinlong;Zhai, Jianqing;Fischer, Thomas
通讯作者:
Fischer, Thomas
影响因子:
3.8
作者:
Burke, Eleanor J.;Brown, Simon J.
通讯作者:
Brown, Simon J.
DOI:
10.1111/1752-1688.12538
发表时间:
2017-08-01
影响因子:
2.4
作者:
Milly, P. C. D.;Dunne, Krista A.
通讯作者:
Dunne, Krista A.
影响因子:
64.8
作者:
Sheffield, Justin;Wood, Eric F.;Roderick, Michael L.
通讯作者:
Roderick, Michael L.