DOI: 10.1016/j.foreco.2016.04.025
Scopus记录号: 2-s2.0-84963986361
论文题名: Carbon sequestration and biodiversity following 18 years of active tropical forest restoration
作者: Wheeler C.E. ; Omeja P.A. ; Chapman C.A. ; Glipin M. ; Tumwesigye C. ; Lewis S.L.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 373 起始页码: 44
结束页码: 55
语种: 英语
英文关键词: Arrested succession
; Biodiversity co-benefits
; Biomass accumulation
; Forest degradation
; Natural regeneration
; Replanting
Scopus关键词: Biodiversity
; Biomass
; Carbon
; Climate change
; Conservation
; Ecology
; Reforestation
; Restoration
; Tropics
; Arrested succession
; Biomass accumulation
; Co benefits
; Forest degradation
; Natural regeneration
; Replanting
; Forestry
; aboveground biomass
; biodiversity
; carbon sequestration
; forest dynamics
; regeneration
; reintroduction
; restoration ecology
; tree planting
; tropical forest
; Kibale National Park
; Uganda
; Poaceae
英文摘要: Vast areas of degraded tropical forest, combined with increasing interest in mitigating climate change and conserving biodiversity, demonstrate the potential value of restoring tropical forest. However, there is a lack of long-term studies assessing active management for restoration. Here we investigate Above-Ground Biomass (AGB), forest structure, and biodiversity, before degradation (in old-growth forest), after degradation (in abandoned agricultural savanna grassland), and within a forest that is actively being restored in Kibale National Park, Uganda. In 1995 degraded land in Kibale was protected from fire and replanted with native seedlings (39 species) at a density of 400 seedlings ha-1. Sixty-five plots (50 m × 10 m) were established in restoration areas in 2005 and 50 of these were re-measured in 2013, allowing changes to be assessed over 18 years. Degraded plots have an Above Ground Biomass (AGB) of 5.1 Mg dry mass ha-1, of which 80% is grass. By 2005 AGB of trees ≥10 cm DBH was 9.5 Mg ha-1, increasing to 40.6 Mg ha-1 by 2013, accumulating at a rate of 3.9 Mg ha-1 year-1. A total of 153 planted individuals ha-1 (38%) remained by 2013, contributing 28.9 Mg ha-1 (70%) of total AGB. Eighteen years after restoration, AGB in the plots was 12% of old-growth (419 Mg ha-1). If current accumulation rates continue restoration forest would reach old-growth AGB in a further 96 years. Biodiversity of degraded plots prior to restoration was low with no tree species and 2 seedling species per sample plot (0.05 ha). By 2005 restoration areas had an average of 3 tree and 3 seedling species per sample plot, increasing to 5 tree and 9 seedling species per plot in 2013. However, biodiversity was still significantly lower than old-growth forest, at 8 tree and 16 seedling species in an equivalent area. The results suggest that forest restoration is beneficial for AGB accumulation with planted stems storing the majority of AGB. Changes in biodiversity appear slower; possibly due to low stem turnover. Overall this restoration treatment is an effective means of restoring degraded land in the area, as can be seen from the lack of regeneration in degraded plots, which remain low-AGB and diversity, largely due to the impacts of fire and competition with grasses. © 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64881
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Geography, University College London, London, United Kingdom; Makerere University Biological Field Station, P.O. Box 967, Fort Portal, Uganda; McGill School of Environment and Department of Anthropology, McGill University, 855 Sherbrooke St. West, Montreal, Canada; Wildlife Conservation Society, Bronx, NY, United States; School of Geography, University of Leeds, Leeds, United Kingdom; Uganda Wildlife Authority, P.O. Box 3530, Kampala, Uganda
Recommended Citation:
Wheeler C.E.,Omeja P.A.,Chapman C.A.,et al. Carbon sequestration and biodiversity following 18 years of active tropical forest restoration[J]. Forest Ecology and Management,2016-01-01,373