G2TT
来源类型Briefs
规范类型简报
DOI10.17528/cifor/004185
Payments for forest environmental services in Vietnam: from policy to practice
Prokofieva, I.; Wunder, S.; Vidale, E.
发表日期2013
出处CIFOR Brief no. 22
出版者Center for International Forestry Research (CIFOR), Bogor, Indonesia
出版年2013
页码8p
语种英语
摘要

We report above-ground biomass (AGB), basal area, stemdensity and wood mass density estimates from 260 sample plots (mean size: 1.2 ha) in intact closed-canopy tropical forests across 12 African countries. Mean AGB is 395.7 Mg dry mass ha21 (95% CI: 14.3), substantially higher than Amazonian values, with the Congo Basin and contiguous forest region attaining AGB values (429 Mg ha21) similar to those of Bornean forests, and significantly greater than East or West African forests. AGB therefore appears generally higher in palaeo- comparedwithneotropical forests. However, mean stem density is low(426+11 stems ha21 greater than or equal to 100 mm diameter) compared with both Amazonian and Bornean forests (cf. approx. 600) and is the signature structural feature of African tropical forests. While spatial autocorrelation complicates analyses, AGB shows a positive relationship with rainfall in the driest nine months of the year, and an opposite association with the wettest three months of the year; a negative relationship with temperature; positive relationshipwith clay-rich soils; and negative relationships with C :Nratio (suggesting a positive soil phosphorus–AGB relationship), and soil fertility computed as the sum of base cations. The results indicate that AGB is mediated by both climate and soils, and suggest that the AGB of African closed-canopy tropical forests may be particularly sensitive to future precipitation and temperature changes.

主题environmental services ; payments for environmental services
区域Vietnam
URLhttps://www.cifor.org/library/4185/
来源智库Center for International Forestry Research (Indonesia)
引用统计
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/94292
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GB/T 7714
Prokofieva, I.,Wunder, S.,Vidale, E.. Payments for forest environmental services in Vietnam: from policy to practice. 2013.
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