February 28, 2007
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FROM VOLUME 6, NUMBER 9, SEPTEMBER 1993
CARBON STORAGE IN BIOMASS: TROPICS
"Current Land Cover
in the Tropics and Its Potential for Sequestering Carbon," R.A. Houghton
(Woods Hole Res. Ctr., POB 296, Woods Hole MA 02543), J.D. Unruh, P.A. Lefebvre,
Global Biogeochem. Cycles,
7(2), 305-320, June 1993.
Reports an approach for evaluating the potential for carbon storage based on
the premise that human use of tropical land has generally reduced woody biomass,
and that such lands would accumulate carbon if properly managed. Evaluation of
several management options shows the potential for storing an amount of carbon
equivalent to about 25 years of current fossil-fuel emissions.
"Carbon Storage and
Land-Use in Extractive Reserves, Acre, Brazil," I.F. Brown (addr. immed.
above), D.C. Nepstad et al., Environ. Conserv.,
19(4), 307-314, Winter 1992-93.
Evaluates the carbon-storage implications of land use in extractive reserves
by studying a former rubber estate. Rubber tappers there effectively maintain
about 60,000 tons of carbon per household in forest biomass, and deforestation
is less than 0.6% per year. However, diversification and improvement of income
from non-timber forest products are needed to maintain rubber tappers in
extractive reserves; this is a challenge for the global society since most
beneficiaries of such reserves live outside of Brazil.
for Tropical Forests," S. Brown (Dept. For., Univ. Illinois, Urbana IL
61801), L.R. Iverson, World Resour. Rev., 4(3), 366-384, 1992.
Reviews the efforts (primarily within the authors' group) to refine the
process of estimating forest biomass, particularly with geographic information
systems. Uses examples from a region with very good inventories and maps
(Peninsula Malaysia), and one with very sparse information (continental
"The Potential of
Forestry and Agroforestry Practices to Store Carbon in the Tropics," P.
Schroeder (ERL, U.S. EPA, Corvallis OR 97333),
ibid., 4(1), 23-41, 1992.
Examines the carbon storage potential of short-rotation tree plantations.
Estimates long-term carbon storage of 8-17 t c/ha in arid regions, and as much
as 78 t c/ha in humid regions. Rotation length is a key factor in long-term
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