Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.12.033 |
Retention level affects dynamics of understory plant community recovery in northern temperate hemlock-cedar forests | |
Lilles, Erica1; Dhar, Amalesh2; Coates, K. David1; Haeussler, Sybille3,4 | |
2018-08-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 421页码:3-15 |
文章类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Canada |
英文摘要 | Retention forestry is replacing clear-cutting as the dominant silvicultural practice in many parts of the world. Higher retention levels are thought to promote faster, more complete ecological recovery after logging, but this hypothesis is insufficiently tested. We compared plant community dynamics in 0%, 40% and 70% retention stands to unharvested stands for 24 years after logging at the Date Creek Research Forest near Kispiox, BC, Canada. The study has a before-after control-impact experimental design with four replicates of each treatment. For terricolous understory plants, we used the similarity of cover, species richness and composition to pre-harvest and unharvested conditions as indicators of ecological integrity. Changes in cover, richness and composition were greatest at 0% retention. For nonvascular plants, changes were generally intermediate at 40% retention and smallest at 70% retention, and recovery increased with retention. The dominant moss Hylocomiurn splendens responded negatively to harvest in proportion to retention level, while most other species responded positively, shifting community composition. Most vascular plants responded positively to harvest, especially at 0% retention, with the exception of two late seral species, Platanthera orbicuinta and Oplopanax horridus. Generally, understory communities in these largely unfragmented northern cedar-hemlock forests displayed less sensitivity to low retention levels than studies conducted elsewhere. For some vascular plant indicators, changes at 70% retention were equal to or greater than those at 40%. Thus, most-but not all-vegetation responses supported the hypothesis that higher retention enhances ecological recovery after logging. The non-linear results were apparently driven by suppression of understory conifer growth in small gaps at 70% retention and illustrate that evaluating ecological integrity strictly in terms of departure from an un-impacted benchmark system risks oversimplifying complex forest dynamics. |
英文关键词 | Biodiversity Disturbance Early seral Gap-phase dynamics Late seral Retention forestry Succession |
领域 | 气候变化 |
收录类别 | SCI-E ; ISTP |
WOS记录号 | WOS:000432758000002 |
WOS关键词 | SILVICULTURAL SYSTEMS ; CONIFEROUS FORESTS ; BRITISH-COLUMBIA ; DIVERSITY ; VEGETATION ; RESPONSES ; CANOPY ; TRAITS ; BIODIVERSITY ; RECRUITMENT |
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/23462 |
专题 | 气候变化 |
作者单位 | 1.British Columbia Minist Forests Lands Nat Resourc, Bag 6000, Smithers, BC V0J2NO, Canada; 2.Univ Alberta, Dept Renewable Resources, 751 Gen Serv Bldg, Edmonton, AB T6G 2E3, Canada; 3.Bulkley Valley Res Ctr, 2041 Monckton Rd, Smithers, BC V0J2N4, Canada; 4.Univ Northern British Columbia Adjunct, 2041 Monckton Rd, Smithers, BC V0J2N4, Canada |
推荐引用方式 GB/T 7714 | Lilles, Erica,Dhar, Amalesh,Coates, K. David,et al. Retention level affects dynamics of understory plant community recovery in northern temperate hemlock-cedar forests[J]. FOREST ECOLOGY AND MANAGEMENT,2018,421:3-15. |
APA | Lilles, Erica,Dhar, Amalesh,Coates, K. David,&Haeussler, Sybille.(2018).Retention level affects dynamics of understory plant community recovery in northern temperate hemlock-cedar forests.FOREST ECOLOGY AND MANAGEMENT,421,3-15. |
MLA | Lilles, Erica,et al."Retention level affects dynamics of understory plant community recovery in northern temperate hemlock-cedar forests".FOREST ECOLOGY AND MANAGEMENT 421(2018):3-15. |
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