DOI: 10.1016/j.foreco.2016.01.001
Scopus记录号: 2-s2.0-84954558035
论文题名: Carbon storage and sequestration of re-growing montane forests in southern Ecuador
作者: Spracklen D.V. ; Righelato R.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 364 起始页码: 139
结束页码: 144
语种: 英语
英文关键词: Biomass
; Reforestation
; Sequestration
; Tropical montane forest
Scopus关键词: Agriculture
; Biomass
; Carbon capture
; Reforestation
; Surface measurement
; Tropics
; Above ground biomass
; Biomass accumulation
; Carbon sequestration
; Carbon storage and sequestrations
; Humid tropical forest
; Natural regeneration
; Sequestration
; Tropical montane forest
; Forestry
; abandoned land
; bioaccumulation
; biomass
; carbon sequestration
; elevation
; land surface
; montane forest
; reforestation
; regeneration
; Ecuador
英文摘要: The storage and sequestration of carbon by tropical montane forests is poorly understood. We quantified the above-ground biomass (AGB) storage in secondary tropical montane forests in southern Ecuador. The AGB in older secondary (>40 years old) forest was found to be 158±38Mgha-1 of land surface at 1000 m elevation and 104±25Mgha-1 of land surface at 2250 m elevation. This is less than the storage reported in a recent synthesis of AGB observations in mature tropical montane forests, potentially due to a legacy of selective logging within our study sites. The slope angle resulted in AGB being 1.5-10% greater when reported on a planimetric compared to land surface area basis. We also quantified AGB in areas of abandoned pasture where grazing and fire had been excluded. Pasture that had been recently abandoned (1-2years) stored 2-18Mgha-1 of AGB with the higher values due to the presence of relict trees. Re-growing secondary forests, established through natural regeneration, accumulated AGB at a rate of 10Mgha-1yr-1 at 1000 m elevation and 4Mgha-1yr-1 at 2250m elevation, for the first 5-7years after pasture abandonment. After 12-15 years, accumulation of AGB slowed to 1-2Mgha-1yr-1. Net biomass accumulation rates were similar to those observed in lowland humid tropical forests, suggesting that regenerating tropical montane forests provide an important carbon sequestration. In newly regenerating forests, small trees (DBH < 10cm) contributed up to 50% of total AGB. In the older secondary forest at high elevation coarse dead wood contributed 34% of total AGB. © 2016 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65058
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Earth and Environment, University of Leeds, Leeds, United Kingdom; Environmental Systems Science Centre, University of Reading, Reading, United Kingdom
Recommended Citation:
Spracklen D.V.,Righelato R.. Carbon storage and sequestration of re-growing montane forests in southern Ecuador[J]. Forest Ecology and Management,2016-01-01,364