干旱区生态环境知识资源中心(Arid): Climate Change Increases the Severity and Duration of Soil Water Stress in the Temperate Forest of Eastern North America

Arid

DOI	10.3389/ffgc.2022.879382
	Climate Change Increases the Severity and Duration of Soil Water Stress in the Temperate Forest of Eastern North America
	Cholet, Cybele; Houle, Daniel; Sylvain, Jean-Daniel; Doyon, Frederik; Maheu, Audrey
通讯作者	Maheu, A
来源期刊	FRONTIERS IN FORESTS AND GLOBAL CHANGE
EISSN	2624-893X
出版年	2022
卷号	5
英文摘要	Under climate change, drought conditions are projected to intensify and soil water stress is identified as one of the primary drivers of the decline of forests. While there is strong evidence of such megadisturbance in semi-arid regions, large uncertainties remain in North American temperate forests and fine-scale assessments of future soil water stress are needed to guide adaptation decisions. The objectives of this study were to (i) assess the impact of climate change on the severity and duration of soil water stress in a temperate forest of eastern North America and (ii) identify environmental factors driving the spatial variability of soil water stress levels. We modeled current and future soil moisture at a 1 km resolution with the Canadian Land Surface Scheme (CLASS). Despite a slight increase in precipitation during the growing season, the severity (95th percentile of absolute soil water potential) and duration (number of days where absolute soil water potential is greater than or equal to 9,000 hPa) of soil water stress were projected to increase on average by 1,680 hPa and 6.7 days in 80 years under RCP8.5, which correspond to a 33 and 158% increase compared to current levels. The largest increase in severity was projected to occur in areas currently experiencing short periods of soil water stress, while the largest increase in duration is rather likely to occur in areas already experiencing prolonged periods of soil water stress. Soil depth and, to a lesser extent, soil texture, were identified as the main controls of the spatial variability of projected changes in the severity and duration of soil water stress. Overall, these results highlight the need to disentangle impacts associated with an increase in the severity vs. in the duration of soil water stress to guide the management of temperate forests under climate change.
英文关键词	soil water stress Northeast American temperate forests land surface modeling climate change water availability soil moisture modeling drought
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000807893700001
WOS关键词	LAND-SURFACE SCHEME ; HYDROLOGICAL MODEL ; CARBON SINK ; DROUGHT ; MOISTURE ; PRECIPITATION ; HETEROGENEITY ; VULNERABILITY ; PERFORMANCE ; REANALYSIS
WOS类目	Ecology ; Forestry
WOS研究方向	Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392769
推荐引用方式 GB/T 7714	Cholet, Cybele,Houle, Daniel,Sylvain, Jean-Daniel,et al. Climate Change Increases the Severity and Duration of Soil Water Stress in the Temperate Forest of Eastern North America[J],2022,5.
APA	Cholet, Cybele,Houle, Daniel,Sylvain, Jean-Daniel,Doyon, Frederik,&Maheu, Audrey.(2022).Climate Change Increases the Severity and Duration of Soil Water Stress in the Temperate Forest of Eastern North America.FRONTIERS IN FORESTS AND GLOBAL CHANGE,5.
MLA	Cholet, Cybele,et al."Climate Change Increases the Severity and Duration of Soil Water Stress in the Temperate Forest of Eastern North America".FRONTIERS IN FORESTS AND GLOBAL CHANGE 5(2022).