Impact on short-lived climate forcers increases projected warming due to deforestation.
Impact on short-lived climate forcers increases projected warming due to deforestation.
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DOI：
10.1038/s41467-017-02412-4
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发表时间：
2018-01-11
影响因子：
16.6
通讯作者：
Wilson C
中科院分区：
文献类型：
--
作者：
Scott CE;Monks SA;Spracklen DV;Arnold SR;Forster PM;Rap A;Äijälä M;Artaxo P;Carslaw KS;Chipperfield MP;Ehn M;Gilardoni S;Heikkinen L;Kulmala M;Petäjä T;Reddington CLS;Rizzo LV;Swietlicki E;Vignati E;Wilson C
毁林对气候的影响取决于若干地球化学和地球物理效应的相对强度。除了影响二氧化碳（CO2）和水分与大气和地表水分的交换外，植被还排放生物挥发性有机化合物（BVOCs），这些化合物改变了包括气溶胶，臭氧和甲烷在内的短期气候强迫因子（SLCFs）的形成。在这里，我们表明，一个完整的全球森林砍伐的情况下，结果在一个净正的辐射强迫（RF; 0.12 W m−2）从SLCF，与负RF从臭氧和甲烷浓度的减少部分抵消了正的气溶胶RF。结合RF由于CO2，表面CO2和SLCFs表明，全球森林砍伐可能会导致0.8 K变暖100年后，SLCFs贡献8%的效果。然而，RCP8.5情景预测的森林砍伐导致SLCF的净RF为零，主要是由于气溶胶间接效应的非线性。由于生物挥发性有机化合物排放量的变化，森林砍伐的气候影响，作为短期气候强迫因子（SLCFs），知之甚少。在这里，作者表明，包括SLCF的影响增加了与理想化森林砍伐情景相关的预计变暖。
The climate impact of deforestation depends on the relative strength of several biogeochemical and biogeophysical effects. In addition to affecting the exchange of carbon dioxide (CO2) and moisture with the atmosphere and surface albedo, vegetation emits biogenic volatile organic compounds (BVOCs) that alter the formation of short-lived climate forcers (SLCFs), which include aerosol, ozone and methane. Here we show that a scenario of complete global deforestation results in a net positive radiative forcing (RF; 0.12 W m−2) from SLCFs, with the negative RF from decreases in ozone and methane concentrations partially offsetting the positive aerosol RF. Combining RFs due to CO2, surface albedo and SLCFs suggests that global deforestation could cause 0.8 K warming after 100 years, with SLCFs contributing 8% of the effect. However, deforestation as projected by the RCP8.5 scenario leads to zero net RF from SLCF, primarily due to nonlinearities in the aerosol indirect effect. The climate impacts of deforestation due to changes in biogenic volatile organic compound emissions, which act as short-lived climate forcers (SLCFs), are poorly understood. Here the authors show that including the impact SLCFs increases the projected warming associated with idealised deforestation scenarios.
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DOI：
10.1002/qj.49712253107
发表时间：
1996-04-01
影响因子：
8.9
作者：
Edwards, JM;Slingo, A
通讯作者：
Slingo, A
影响因子：
18.3
作者：
Fuchs, H.;Hofzumahaus, A.;Wahner, A.
通讯作者：
Wahner, A.
DOI：
10.1073/pnas.0608998104
发表时间：
2007-04-17
影响因子：
11.1
作者：
Bala, G.;Caldeira, K.;Mirin, A.
通讯作者：
Mirin, A.
影响因子：
5.2
作者：
Dusek, U.;Frank, G. P.;Poeschl, U.
通讯作者：
Poeschl, U.
影响因子：
4.4
作者：
Engelhart, Gabriella J.;Moore, Richard H.;Pandis, Spyros N.
通讯作者：
Pandis, Spyros N.