Revealing the widespread potential of forests to increase low level cloud cover.
Revealing the widespread potential of forests to increase low level cloud cover.
复制标题
DOI：
10.1038/s41467-021-24551-5
复制
发表时间：
2021-07-15
影响因子：
16.6
通讯作者：
Cescatti A
中科院分区：
文献类型：
--
作者：
Duveiller G;Filipponi F;Ceglar A;Bojanowski J;Alkama R;Cescatti A
森林由于其固碳能力，在人类当前减缓气候变化的挑战中发挥着关键作用。保护和扩大森林覆盖被认为是加强这一碳汇的关键。然而，改变森林覆盖率可通过生物物理效应进一步影响气候系统。很少研究的一个影响是植树造林如何改变云系，这可能对水文循环、地表辐射收支和行星的降雨量本身产生影响。在这里，我们提供了一个全球范围的评估，这种影响来自卫星遥感观测。我们发现，在全球67%的采样地区，植树造林会增加低空云层覆盖，这应该会对地球产生冷却作用。我们进一步揭示了这种影响对森林类型的依赖性，特别是在欧洲，针叶林比阔叶林产生更多的云。森林可以通过影响低云的形成来影响气候，但这种情况在何时何地发生还不清楚。在这里，作者提供了一个基于卫星遥感观测的全球范围的评估，表明植树造林主要增加了低云覆盖，这可能会降低地表温度。
Forests play a key role in humanity’s current challenge to mitigate climate change thanks to their capacity to sequester carbon. Preserving and expanding forest cover is considered essential to enhance this carbon sink. However, changing the forest cover can further affect the climate system through biophysical effects. One such effect that is seldom studied is how afforestation can alter the cloud regime, which can potentially have repercussions on the hydrological cycle, the surface radiation budget and on planetary albedo itself. Here we provide a global scale assessment of this effect derived from satellite remote sensing observations. We show that for 67% of sampled areas across the world, afforestation would increase low level cloud cover, which should have a cooling effect on the planet. We further reveal a dependency of this effect on forest type, notably in Europe where needleleaf forests generate more clouds than broadleaf forests. Forests can influence climate by affecting low cloud formation, but where and when this occurs is not well known. Here, the authors provide a global-scale assessment, based on satellite remote sensing observations, suggesting afforestation mostly increases low cloud cover which could potentially cool surface temperatures.
登录
查看更多内容
影响因子：
9.8
作者：
Duveiller G;Hooker J;Cescatti A
通讯作者：
Cescatti A
影响因子：
16.6
作者：
Duveiller G;Hooker J;Cescatti A
通讯作者：
Cescatti A
影响因子：
56.9
作者：
Alkama, Ramdane;Cescatti, Alessandro
通讯作者：
Cescatti, Alessandro
影响因子：
7.3
作者：
Davin, Edouard L.;Rechid, Diana;Wulfmeyer, Volker
通讯作者：
Wulfmeyer, Volker
影响因子：
64.8
作者：
Betts, RA
通讯作者：
Betts, RA