Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.03.044 |
Multi-layered Scots pine forests in boreal Sweden result from mass regeneration and size stratification | |
Lundqvist, Lars1; Ahlstrom, Martin A.1; Axelsson, E. Petter2; Morling, Tommy1; Valinger, Erik1 | |
2019-06-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 441页码:176-181 |
文章类型 | Article |
语种 | 英语 |
国家 | Sweden |
英文摘要 | Understanding historic development of multi-layered Scots pine (Pinus sylvestris L.) stands and how they became multi-layered is essential for assessing the feasibility of using the selection system in these stands. To address this we measured trees (dbh >= 4 cm) and saplings (height > 0.5 m dbh < 4 cm) and used increment cores from 244 sample trees to reconstruct stand structure development, ingrowth and basal area increment in four multi-layered Scots pine stands in Sweden. Age distributions were quite homogeneous, three of the four stands had age distributions that were dominated by one or two 20 year age classes, suggesting that the irregular diameter distributions displayed in 2013 had developed from more homogeneous distributions. Analyses of the historical ingrowth of Scots pine into the tree layer suggested that the multi-layered structure was created by mass regeneration followed by size stratification caused by differences in growth rates within even-aged cohorts of regeneration. Large reductions of the basal area in the past resulted in abundant regeneration and ingrowth of Scots pine. When the over-story increased in basal area over time, there was a growth differentiation among the saplings and small trees, gradually creating a multi-layered stand structure as some of the trees grew into the larger size classes while others remained in the smaller size classes. When the stands reached a basal area of about 13 m(2) ha(-1) the ingrowth of saplings past 1.3 m height essentially stopped but the size stratification among the small trees continued, further enhancing the multi-layered structure. The results indicate that to receive regeneration pulses and sustain a multi-layered structure in Scots pine forests, the basal area needs to be significantly reduced. The growth consequences of this need to be studied. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471086600017 |
WOS关键词 | NORWAY SPRUCE ; NATURAL REGENERATION ; STAND STRUCTURE ; SYLVESTRIS L. ; GROWTH ; DYNAMICS ; MORTALITY ; BIRCH |
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/183762 |
专题 | 气候变化 |
作者单位 | 1.SLU, Dept Forest Ecol & Management, S-90183 Umeaa, Sweden; 2.SLU, Dept Wildlife Fish & Environm Studies, S-90183 Umeaa, Sweden |
推荐引用方式 GB/T 7714 | Lundqvist, Lars,Ahlstrom, Martin A.,Axelsson, E. Petter,et al. Multi-layered Scots pine forests in boreal Sweden result from mass regeneration and size stratification[J]. FOREST ECOLOGY AND MANAGEMENT,2019,441:176-181. |
APA | Lundqvist, Lars,Ahlstrom, Martin A.,Axelsson, E. Petter,Morling, Tommy,&Valinger, Erik.(2019).Multi-layered Scots pine forests in boreal Sweden result from mass regeneration and size stratification.FOREST ECOLOGY AND MANAGEMENT,441,176-181. |
MLA | Lundqvist, Lars,et al."Multi-layered Scots pine forests in boreal Sweden result from mass regeneration and size stratification".FOREST ECOLOGY AND MANAGEMENT 441(2019):176-181. |
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