气候变化领域集成服务门户(CCPortal): Post-disturbance reorganization of forest ecosystems in a changing world

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DOI	10.1073/pnas.2202190119
	Post-disturbance reorganization of forest ecosystems in a changing world
	Seidl, Rupert; Turner, Monica G.
发表日期	2022
ISSN	0027-8424
EISSN	1091-6490
卷号	119 期号:28
英文摘要	Forest ecosystems are strongly impacted by continuing climate change and increasing disturbance activity, but how forest dynamics will respond remains highly uncertain. Here, we argue that a short time window after disturbance (i.e., a discrete event that disrupts prevailing ecosystem structure and composition and releases resources) is pivotal for future forest development. Trees that establish during this reorganization phase can shape forest structure and composition for centuries, providing operational early indications of forest change. While forest change has been fruitfully studied through a lens of resilience, profound ecological changes can be masked by a resilience versus regime shift dichotomy. We present a framework for characterizing the full spectrum of change after disturbance, analyzing forest reorganization along dimensions of forest structure (number, size, and spatial arrangement of trees) and composition (identity and diversity of tree species). We propose four major pathways through which forest cover can persist but reorganize following disturbance: resilience (no change in structure and composition), restructuring (structure changes but composition does not), reassembly (composition changes but structure does not), and replacement (structure and composition both change). Regime shifts occur when vegetation structure and composition are altered so profoundly that the emerging trajectory leads to nonforest. We identify fundamental processes underpinning forest reorganization which, if disrupted, deflect ecosystems away from resilience. To understand and predict forest reorganization, assessing these processes and the traits modulating them is crucial. A new wave of experiments, measurements, and models emphasizing the reorganization phase will further the capacity to anticipate future forest dynamics.
英文关键词	forest disturbance; recovery; tree regeneration; forest structure; forest composition
语种	英语
WOS研究方向	Multidisciplinary Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000932004200001
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280520
作者单位	Technical University of Munich; University of Wisconsin System; University of Wisconsin Madison
推荐引用方式 GB/T 7714	Seidl, Rupert,Turner, Monica G.. Post-disturbance reorganization of forest ecosystems in a changing world[J],2022,119(28).
APA	Seidl, Rupert,&Turner, Monica G..(2022).Post-disturbance reorganization of forest ecosystems in a changing world.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,119(28).
MLA	Seidl, Rupert,et al."Post-disturbance reorganization of forest ecosystems in a changing world".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 119.28(2022).