气候变化领域集成服务门户(CCPortal): Quantifying the effects of solar geoengineering on vegetation

CCPortal

DOI	10.1007/s10584-019-02387-9
	Quantifying the effects of solar geoengineering on vegetation
	Dagon K.; Schrag D.P.
发表日期	2019
ISSN	0165-0009
起始页码	235
结束页码	251
卷号	153 期号:2020-01-02
英文摘要	Climate change will have significant impacts on vegetation and biodiversity. Solar geoengineering has potential to reduce the climate effects of greenhouse gas emissions through albedo modification, yet more research is needed to better understand how these techniques might impact terrestrial ecosystems. Here, we utilize the fully coupled version of the Community Earth System Model to run transient solar geoengineering simulations designed to stabilize radiative forcing starting mid-century, relative to the Representative Concentration Pathway 6 (RCP6) scenario. Using results from 100-year simulations, we analyze model output through the lens of ecosystem-relevant metrics. We find that solar geoengineering improves the conservation outlook under climate change, but there are still potential impacts on terrestrial vegetation. We show that rates of warming and the climate velocity of temperature are minimized globally under solar geoengineering by the end of the century, while trends persist over land in the Northern Hemisphere. Moisture is an additional constraint on vegetation, and in the tropics the climate velocity of precipitation dominates over that of temperature. Shifts in the amplitude of temperature and precipitation seasonal cycles have implications for vegetation phenology. Different metrics for vegetation productivity also show decreases under solar geoengineering relative to RCP6, but could be related to the model parameterization of nutrient cycling. The coupling of water and carbon cycles is found to be an important mechanism for understanding changes in ecosystems under solar geoengineering. © 2019, Springer Nature B.V.
英文关键词	Climate change; Climate modeling; Solar geoengineering; Terrestrial ecosystems
语种	英语
scopus关键词	Atmospheric radiation; Biodiversity; Climate models; Ecosystems; Gas emissions; Greenhouse gases; Vegetation; Geoengineering; Model parameterization; Northern Hemispheres; Radiative forcings; Terrestrial ecosystems; Terrestrial vegetation; Vegetation phenology; Vegetation productivity; Climate change; biodiversity; climate change; climate modeling; greenhouse gas; Northern Hemisphere; nutrient cycling; phenology; precipitation (climatology); radiative forcing; temperature effect; terrestrial ecosystem; vegetation cover
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147520
作者单位	National Center for Atmospheric Research, Boulder, CO, United States; Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Dagon K.,Schrag D.P.. Quantifying the effects of solar geoengineering on vegetation[J],2019,153(2020-01-02).
APA	Dagon K.,&Schrag D.P..(2019).Quantifying the effects of solar geoengineering on vegetation.Climatic Change,153(2020-01-02).
MLA	Dagon K.,et al."Quantifying the effects of solar geoengineering on vegetation".Climatic Change 153.2020-01-02(2019).