Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.117494 |
Recovery of understory assemblage along 50 years after shelterwood cut harvesting in Nothofagus pumilio Southern Patagonian forests | |
Perez Flores, Magali1,2; Martinez Pastur, Guillermo1,3; Manuel Cellini, Juan4; Vanessa Lencinas, Maria1,3 | |
2019-10-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 450 |
文章类型 | Article |
语种 | 英语 |
国家 | Argentina |
英文摘要 | Harvesting modifies the understory due to changes in the overstory structure, microclimate and soil properties. The impact is directly related to the harvesting intensity, although studies are usually developed in logged areas (low impact) avoiding stockpiled areas (high impact). Understory resilience is quite variable, and recovery time remains unknown for different management practices and different temperate forests. The objectives of this work were: (i) to evaluate recovery of understory vascular plants and forest structure in Nothofagus pumilio forests of South Patagonia (Argentina) along a chronosequence of years-after-harvesting (YAH) (1-5, 6-10, 20-30, > 50) in shelterwood cuts compared to unharvested forests (UF), and (ii) to analyze differences in the understory recovery in areas with different impact intensity due to the harvesting: low impact harvesting (LIH) in logged areas vs. high impact harvesting (HIE) in stockpiled areas. We selected 12 harvested areas with different YAH, and in each area we sampled three forest treatments (LIH, HIH, UF) with 5 replicas (N = 12 x 3 x 5 = 180). In each sampling unit we analyzed the forest structure (primary or remnant overstory and secondary forests), environmental (soil moisture) and understory variables (richness, cover and species assemblage patterns) through univariate and multivariate statistical analyses. Remnant forest structures presented significant decay in the dominant height along the chronosequence, and an increasing in the secondary forest variables, as well as in the crown cover (remnant + secondary forests). Lower values of forest structure variables were observed in HIH than LIH, but without significant differences between them. Most of treatment levels presented significant differences with UF, and values become similar with time. Understory presented significant differences in richness and cover along the chronosequence, with values become more similar to UF on time. Harvesting impact levels also presented differences, e.g. 104% and 144% more exotic species cover in LIH and HIH compared with 20% in UF. However, greater significant differences were found among treatments for their species assemblage patterns, mainly in the first stages of the chronosequence (e.g., between UF and LIH at 6-10 YAH); meanwhile in the last stage (> 50 YAH), species assemblage patterns become similar with UF, both for LIH and HIH. We conclude that understory vascular plant assemblage of N. pumilio forests recovers patterns after 50 YAH, being more similar to original ones as the crown cover reaches similar values to unharvested forests, showing N. pumilio forests as highly resilient to shelterwood cut harvesting, even in high impacted areas. |
英文关键词 | Richness Vascular plants Resilience Logged areas Stockpiled areas Forest management |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000484651100002 |
WOS关键词 | TIERRA-DEL-FUEGO ; ALTERNATIVE SILVICULTURAL PRACTICES ; PLANT-SPECIES DIVERSITY ; VARIABLE RETENTION ; RAIN-FORESTS ; CLEAR-CUT ; REGENERATION ; VEGETATION ; GROWTH ; MANAGEMENT |
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/187656 |
专题 | 气候变化 |
作者单位 | 1.Consejo Nacl Invest Cient & Tecn, Godoy Cruz 2290,C1425FQB, Buenos Aires, DF, Argentina; 2.UNLP, LISEA, Diagonal 113 469, RA-1900 La Plata, Buenos Aires, Argentina; 3.Consejo Nacl Invest Cient & Tecn, Ctr Austral Invest Cient CADIC, Houssay 200, RA-9410 Ushuaia, Tierra Del Fueg, Argentina; 4.UNLP, Lab Invest Maderas LIMAD, Diagonal 113 469, RA-1900 La Plata, Buenos Aires, Argentina |
推荐引用方式 GB/T 7714 | Perez Flores, Magali,Martinez Pastur, Guillermo,Manuel Cellini, Juan,et al. Recovery of understory assemblage along 50 years after shelterwood cut harvesting in Nothofagus pumilio Southern Patagonian forests[J]. FOREST ECOLOGY AND MANAGEMENT,2019,450. |
APA | Perez Flores, Magali,Martinez Pastur, Guillermo,Manuel Cellini, Juan,&Vanessa Lencinas, Maria.(2019).Recovery of understory assemblage along 50 years after shelterwood cut harvesting in Nothofagus pumilio Southern Patagonian forests.FOREST ECOLOGY AND MANAGEMENT,450. |
MLA | Perez Flores, Magali,et al."Recovery of understory assemblage along 50 years after shelterwood cut harvesting in Nothofagus pumilio Southern Patagonian forests".FOREST ECOLOGY AND MANAGEMENT 450(2019). |
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