干旱区生态环境知识资源中心(Arid): A hidden mechanism of forest loss under climate change: The role of drought in eliminating forest regeneration at the edge of its distribution

Arid

DOI	10.1016/j.foreco.2021.119966
	A hidden mechanism of forest loss under climate change: The role of drought in eliminating forest regeneration at the edge of its distribution
	Pozner, Ella; Bar-On, Peleg; Livne-Luzon, Stav; Moran, Uri; Tsamir-Rimon, Mor; Dener, Efrat; Schwartz, Efrat; Rotenberg, Eyal; Tatarinov, Fyodor; Preisler, Yakir; Zecharia, Nitai; Osem, Yagil; Yakir, Dan; Klein, Tamir
通讯作者	Klein, T (corresponding author)，Weizmann Inst Sci, Plant & Environm Sci Dept, Rehovot, Israel.
来源期刊	FOREST ECOLOGY AND MANAGEMENT
ISSN	0378-1127
EISSN	1872-7042
出版年	2022
卷号	506
英文摘要	The ongoing global warming and associated drying are shaping the fate of forests worldwide. While processes of tree mortality are visible and studied, a decrease in forest regeneration is mostly overlooked, although equally deleterious. Populations at the edge of tree species distribution areas are at higher risk and are hence hotspots for species extinctions. Here we use a semi-arid pine forest growing at the timberline edge of forest existence as a model for forest survival under warming and drying conditions. Seedling recruitment, including seed germination, seedling survivorship, and multiyear seedling growth, were measured along six consecutive years. To pinpoint the role of drought, we designed a field experiment, manipulating stand density at three levels and grazing regimes. Seed germination was high across all studied plots, but seedling survivorship and multiyear seedling growth were near-zero. Stand density and grazing exclusion positively affected germination. Seedling survivorship was higher in wetter years. Multiyear seedling growth was stunted by grazing, and seedling height was distributed differently across different stand densities. Our data indicate that seedling survivorship during the first dry season acts as a bottleneck for forest existence at the dry and hot edge of current forest distribution. We also quantified the roles of other stressors such as shading, and highlighted the eliminating role of grazing on multiyear seedling growth. Forest regeneration should be more closely monitored in sensitive populations, as climate change-driven forest loss can happen even without mature tree mortality.
英文关键词	Seedling mortality Seedling recruitment Seedling growth Grazing Forest thinning Warming and drying
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000745213500005
WOS关键词	PINUS-HALEPENSIS ; ADAPTIVE CAPACITY ; EUROPEAN FORESTS ; CHANGE IMPACTS ; GENE FLOW ; WATER ; ADAPTATION ; PERFORMANCE ; GROWTH ; TREES
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376886
作者单位	[Pozner, Ella; Bar-On, Peleg; Livne-Luzon, Stav; Moran, Uri; Tsamir-Rimon, Mor; Dener, Efrat; Klein, Tamir] Weizmann Inst Sci, Plant & Environm Sci Dept, Rehovot, Israel; [Schwartz, Efrat; Rotenberg, Eyal; Tatarinov, Fyodor; Preisler, Yakir; Yakir, Dan] Weizmann Inst Sci, Earth & Planetary Sci Dept, Rehovot, Israel; [Zecharia, Nitai] KKL Forest Serv, Jerusalem, Israel; [Osem, Yagil] ARO Volcani, IL-7505101 Rishon Leziyyon, Israel
推荐引用方式 GB/T 7714	Pozner, Ella,Bar-On, Peleg,Livne-Luzon, Stav,et al. A hidden mechanism of forest loss under climate change: The role of drought in eliminating forest regeneration at the edge of its distribution[J],2022,506.
APA	Pozner, Ella.,Bar-On, Peleg.,Livne-Luzon, Stav.,Moran, Uri.,Tsamir-Rimon, Mor.,...&Klein, Tamir.(2022).A hidden mechanism of forest loss under climate change: The role of drought in eliminating forest regeneration at the edge of its distribution.FOREST ECOLOGY AND MANAGEMENT,506.
MLA	Pozner, Ella,et al."A hidden mechanism of forest loss under climate change: The role of drought in eliminating forest regeneration at the edge of its distribution".FOREST ECOLOGY AND MANAGEMENT 506(2022).