干旱区生态环境知识资源中心(Arid): Scaling up tree growth to assess forest resilience under increasing aridity: the case of Iberian dry-edge pine forests

Arid

DOI	10.1007/s10980-024-01792-5
	Scaling up tree growth to assess forest resilience under increasing aridity: the case of Iberian dry-edge pine forests
	Zavala, Miguel A.; Angulo, Oscar; de la Parra, Rafael Bravo; Moreno-Fernandez, Daniel; Madrigal-Gonzalez, Jaime
通讯作者	Zavala, MA
来源期刊	LANDSCAPE ECOLOGY
ISSN	0921-2973
EISSN	1572-9761
出版年	2024
卷号	39 期号:1
英文摘要	ContextMediterranean managed dry-edge pine forests maintain biodiversity and supply key ecosystem services but are threatened by climate change and are highly vulnerable to desertification. Forest management through its effect on stand structure can play a key role on forest stability in response to increasing aridity, but the role of forest structure on drought resilience remains little explored.ObjectivesTo investigate the role of tree growth and forest structure on forest resilience under increasing aridity and two contrasting policy-management regimes. We compared three management scenarios; (i) business as usual-based on the current harvesting regime and increasing aridity-and two scenarios that differ in the target forest function; (ii) a conservation scenario, oriented to preserve forest stock under increasing aridity; and (iii), a productivity scenario oriented to maintain forest yield under increasingly arid conditions.MethodsThe study site is part of a large-homogeneous pine-covered landscape covering sandy flatlands in Central Spain. The site is a dry-edge forest characterized by a lower productivity and tree density relative to most Iberian Pinus pinaster forests. We parameterized and tested an analytical size-structured forest dynamics model with last century tree growth and forest structure historical management records.ResultsUnder current management (Scenario-i), increasing aridity resulted in a reduction of stock, productivity, and maximum mean tree size. Resilience boundaries differed among Scenario-ii and -Scenario-iii, revealing a strong control of the management regime on resilience via forest structure. We identified a trade-off between tree harvest size and harvesting rate, along which there were various possible resilient forest structures and management regimes. Resilience boundaries for a yield-oriented management (Scenario-iii) were much more restrictive than for a stock-oriented management (Scenario-ii), requiring a drastic decrease in both tree harvest size and thinning rates. In contrast, stock preservation was feasible under moderate thinning rates and a moderate reduction in tree harvest size.ConclusionsForest structure is a key component of forest resilience to drought. Adequate forest management can play a key role in reducing forest vulnerability while ensuring a long-term sustainable resource supply. Analytical tractable models of forest dynamics can help to identify key mechanisms underlying drought resilience and to design management options that preclude these social-ecological systems from crossing a tipping point over a degraded alternate state.
英文关键词	Adaptation Climate change Drought Forest vulnerability Mitigation Size-structured population model
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001147430800001
WOS关键词	CLIMATE-CHANGE ; POPULATION-DYNAMICS ; STAND DENSITY ; NUMERICAL-INTEGRATION ; BIOMASS EXTRACTION ; DROUGHT ; COMPETITION ; MODEL ; SIZE ; PINASTER
WOS类目	Ecology ; Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404861
推荐引用方式 GB/T 7714	Zavala, Miguel A.,Angulo, Oscar,de la Parra, Rafael Bravo,et al. Scaling up tree growth to assess forest resilience under increasing aridity: the case of Iberian dry-edge pine forests[J],2024,39(1).
APA	Zavala, Miguel A.,Angulo, Oscar,de la Parra, Rafael Bravo,Moreno-Fernandez, Daniel,&Madrigal-Gonzalez, Jaime.(2024).Scaling up tree growth to assess forest resilience under increasing aridity: the case of Iberian dry-edge pine forests.LANDSCAPE ECOLOGY,39(1).
MLA	Zavala, Miguel A.,et al."Scaling up tree growth to assess forest resilience under increasing aridity: the case of Iberian dry-edge pine forests".LANDSCAPE ECOLOGY 39.1(2024).