Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.07.050 |
A first look at the impediments to forest recovery in bracken-dominated clearings in the African Highlands | |
Ssali, Fredrick; Moe, Stein R.; Sheil, Douglas | |
2017-10-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
![]() |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 402 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway |
英文摘要 | Areas dominated by bracken, Pteridium aquilinum, occur on every continent except Antarctica. These fern thickets appear to retard forest recovery and thus reduce forest diversity and carbon values. We examined how bracken inhibits forest recovery in the Bwindi Impenetrable National Park, Uganda. We established 40 50 x transects across the forest-bracken interface. On average, we recorded 596 +/- 64 large trees (stems ha(-1) +/- 1 SE), 1440 +/- 159 saplings, 33580 +/- 8860 large seedlings and 31003 +/- 8854 small seedlings in the forest and 45 +/- 16 large trees, 114 +/- 28 saplings, 7015 +/- 2268 large seedlings and 6317 +/- 2240 small seedlings in bracken. All bracken clearings had been affected by fire. The density of bracken was 4.9 +/- 0.3 fronds m(-2). Our results suggest that distance limitation, lack of perches, damage by vertebrates and suppression by climbers all offer potential explanations of impeded regeneration in bracken. The sparser woody vegetation that occurred in bracken typically had smaller-seeded and thicker-barked tree species than the nearby forest and also included more pioneers and fewer animal dispersed species. Interestingly we detected a negative relationship between proximity to bracken plants and woody regeneration within the forest. Several key explanatory variables including canopy cover, litter depth, distance to forest and bracken density are correlated and hard to separate. |
英文关键词 | Afro-tropical forest Arrested succession Bwindi Competition Forest-bracken edge Invasive species Pteridium aquilinum Regeneration |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411534000016 |
WOS关键词 | IMPENETRABLE NATIONAL-PARK ; PLANT LITTER ; PTERIDIUM ; VEGETATION ; ELEPHANTS ; ECOLOGY ; DAMAGE ; REGENERATION ; RECRUITMENT ; 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/23135 |
专题 | 气候变化 |
作者单位 | Norwegian Univ Life Sci, Fac Environm Sci & Nat Resource Management, POB 5003, N-1432 As, Norway |
推荐引用方式 GB/T 7714 | Ssali, Fredrick,Moe, Stein R.,Sheil, Douglas. A first look at the impediments to forest recovery in bracken-dominated clearings in the African Highlands[J]. FOREST ECOLOGY AND MANAGEMENT,2017,402. |
APA | Ssali, Fredrick,Moe, Stein R.,&Sheil, Douglas.(2017).A first look at the impediments to forest recovery in bracken-dominated clearings in the African Highlands.FOREST ECOLOGY AND MANAGEMENT,402. |
MLA | Ssali, Fredrick,et al."A first look at the impediments to forest recovery in bracken-dominated clearings in the African Highlands".FOREST ECOLOGY AND MANAGEMENT 402(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论