气候变化领域集成服务门户(CCPortal): Restoring native forests from Pinus radiata plantations: Effects of different harvesting treatments on the performance of planted seedlings of temperate tree species in central Chile

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DOI	10.1016/j.foreco.2020.118585
	Restoring native forests from Pinus radiata plantations: Effects of different harvesting treatments on the performance of planted seedlings of temperate tree species in central Chile
	Kremer K.N.; Bannister J.R.; Bauhus J.
发表日期	2021
ISSN	0378-1127
卷号	479
英文摘要	Extensive areas of native vegetation have been cleared to establish commercial exotic tree plantations in south-central Chile, a region known as a world biodiversity hotspot. Despite increasing societal demands to restore native forests in parts of the landscape, documented experiences for this form of restoration are lacking. We conducted a landscape-replicated experiment to test the influence of different harvesting treatments (clearcut, strip-cutting and unharvested control) on the early establishment of native tree species in 20-year-old Pinus radiata plantations. Group plantings of shade-intolerant (Nothofagus dombeyi; Nothofagus obliqua), semi-tolerant (Nothofagus alpina; Laurelia sempervirens) and shade–tolerant species (Aextoxicon punctatum; Cryptocarya alba) were established across the treatments, and seedling performance and water status were monitored during the first two growing seasons. Mean survival was significantly higher in the strip-cuttings (77%) and control (70%) than in the clearcuts (38%), while mean height and root collar diameter growth were significantly higher in the strip-cuttings (16 cm year−1; 0.2 cm year−1) and clearcuts (16 cm year−1; 0.2 cm year−1) than in the control (5 cm year−1; 0.1 cm year−1). Shade-intolerant and semi-tolerant species showed the highest growth responses to openings. Leaf water potential was significantly higher in seedlings in the strip-cuttings than those in the control and clearcuts, and stomatal conductance was significantly higher in the strip-cuttings and clearcuts than in the control. Higher seedling performances and lower water stress in the strip-cutting treatment suggest that partial canopy removal is a suitable method for artificial regeneration of native tree species with different shade tolerances for native forest restoration from P. radiata plantations. © 2020 Elsevier B.V.
英文关键词	Artificial regeneration; Canopy cover; Conversion; Seedling; Shade tolerance; Water stress
语种	英语
scopus关键词	Biodiversity; Conservation; Plants (botany); Reforestation; Restoration; Artificial regeneration; Leaf water potential; Native tree species; Replicated experiment; Root-collar diameters; Seedling performance; Stomatal conductance; Tolerant species; Seed; coniferous forest; forest management; native species; plantation forestry; restoration ecology; seedling; stomatal conductance; survival; temperate forest; timber harvesting; water stress; Biodiversity; Conservation; Reforestation; Restoration; Seeding; Chile; Aextoxicon punctatum; Cryptocarya alba; Laurelia sempervirens; Nothofagus alpina; Nothofagus dombeyi; Nothofagus obliqua; Pinus radiata
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154881
作者单位	Chair of Silviculture, Institute of Forest Sciences, University of Freiburg, Tennenbacherstr. 4, Freiburg, 79106, Germany; Instituto Forestal, Sede Los Ríos, Fundo Teja Norte s/n, Valdivia, Chile; Instituto Forestal, Oficina Chiloé, Nercón s/n, Castro, Chile
推荐引用方式 GB/T 7714	Kremer K.N.,Bannister J.R.,Bauhus J.. Restoring native forests from Pinus radiata plantations: Effects of different harvesting treatments on the performance of planted seedlings of temperate tree species in central Chile[J],2021,479.
APA	Kremer K.N.,Bannister J.R.,&Bauhus J..(2021).Restoring native forests from Pinus radiata plantations: Effects of different harvesting treatments on the performance of planted seedlings of temperate tree species in central Chile.Forest Ecology and Management,479.
MLA	Kremer K.N.,et al."Restoring native forests from Pinus radiata plantations: Effects of different harvesting treatments on the performance of planted seedlings of temperate tree species in central Chile".Forest Ecology and Management 479(2021).