Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2016.11.039 |
Recruitment, growth and recovery of commercial tree species over 30 years following logging and thinning in a tropical rain forest | |
de Avila, Angela Luciana1; Schwartz, Gustavo2; Ruschel, Ademir Roberto2; Lopes, Jose do Carmo2; Macedo Silva, Jose Natalino3; Pereira de Carvalho, Joao Olegario3; Dormann, Carsten F.4; Mazzei, Lucas2; Mota Soares, Marcio Hofmann2; Bauhus, Juergen1 | |
2017-02-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 385 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Brazil |
英文摘要 | Sustainable production of timber from commercial species across felling cycles is a core challenge for tropical silviculture. In this study, we analysed how the intensity and type (harvesting and thinning) of silvicultural interventions affect: (a) recruitment of small stems (5 cm <= DBH < 15 cm), (b) increment of future crop trees (15 cm <= DBH < 50 cm) and (c) recovery of harvestable growing stocks (DBH >= 50 cm) of 52 commercial timber species in the Tapajos National Forest, Brazil. Intervention intensities comprised logging (on average 61 m(3) ha(-1)) and associated damage to remaining trees (1982) and thinning (refinement) to reduce basal area at the stand level (1993/1994). These interventions together resulted in a gradient of reduction in basal-area from 19 to 53% relative to pre-logging stocks. Trees (DBH >= 5 cm) were measured on eight occasions in 41 permanent sample plots of 0.25 ha each. The dynamics were analysed at the stand level over 30 years and compared among treatments (including unlogged forest) and to pre-logging stands. Recruitment and growth temporarily increased following interventions and recovery of harvestable growing stock decreased with intervention intensity. Harvesting substantially increased recruitment of small stems relative to the unlogged forest, but recruitment rates decreased over time and did not increase following thinning. Gross increment of future crop trees was higher in logged than in unlogged forest and increased over time with high intensity of follow-up thinning, where it remained significantly higher than in control plots over time. Increased recruitment rates and volume increments were mainly driven by long-lived pioneer species, changing the composition of the growing stock. In 2012, recovery of harvestable growing stock of the 22 species harvested in 1982 varied between 19% and 57% in logged treatments relative to pre-logging levels. When considering an additional group of 30 species that were not harvested in the permanent sample plots but are now potentially commercial, relative recovery increased enough to support a second harvest under the present regulations (maximum harvest of 30 m(3) ha(-1)), except for treatment with high thinning intensity where stocks were still less than 30% relative to pre-harvest levels. In contrast, light and medium thinning intensity promoted recovery of harvestable growing stock. These findings indicate that intensive thinning should be avoided and silvicultural interventions oriented towards future crop trees of target species should be adopted. This may enhance recovery and reduce unintended changes in composition of the commercial growing stock. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Brazilian Amazon Volume increment Polycyclic silvicultural system Pre-harvest liana cutting Selection harvesting Stand thinning (refinement) |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000392680800024 |
WOS关键词 | SUSTAINING CONSERVATION VALUES ; TAPAJOS NATIONAL FOREST ; LONG-TERM IMPACTS ; SILVICULTURAL TREATMENTS ; TIMBER PRODUCTION ; CANOPY GAPS ; NATURAL REGENERATION ; GENETIC DIVERSITY ; MANAGEMENT ; DYNAMICS |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22428 |
专题 | 气候变化 |
作者单位 | 1.Univ Freiburg, Fac Environm & Nat Resources, Chair Silviculture, Tennenbacher Str 4, D-79085 Freiburg, Germany; 2.Embrapa Amazonia Oriental, Caixa Postal 48, BR-66095100 Belem, Para, Brazil; 3.Fed Rural Univ Amazonia, Av Presidente Tancredo Neves 2501, BR-66077530 Belem, Para, Brazil; 4.Univ Freiburg, Fac Environm & Nat Resources, Biometry & Environm Syst Anal, Tennenbacher Str 4, D-79106 Freiburg, Germany |
推荐引用方式 GB/T 7714 | de Avila, Angela Luciana,Schwartz, Gustavo,Ruschel, Ademir Roberto,et al. Recruitment, growth and recovery of commercial tree species over 30 years following logging and thinning in a tropical rain forest[J]. FOREST ECOLOGY AND MANAGEMENT,2017,385. |
APA | de Avila, Angela Luciana.,Schwartz, Gustavo.,Ruschel, Ademir Roberto.,Lopes, Jose do Carmo.,Macedo Silva, Jose Natalino.,...&Bauhus, Juergen.(2017).Recruitment, growth and recovery of commercial tree species over 30 years following logging and thinning in a tropical rain forest.FOREST ECOLOGY AND MANAGEMENT,385. |
MLA | de Avila, Angela Luciana,et al."Recruitment, growth and recovery of commercial tree species over 30 years following logging and thinning in a tropical rain forest".FOREST ECOLOGY AND MANAGEMENT 385(2017). |
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