Assessment Of Land-Rehabilitation Techniques For Increasing Carbon Sequestration

Assessment Of Land-Rehabilitation Techniques For Increasing Carbon Sequestration

“Best bet” Land-use Systems

Thematic reports

Carbon Sequestration And Trace Gas Emissions

Unique id: IDAX5A2B

Source file: D:\Projects\ASB\ASB Country and Thematic reports\Climate Change WG Report\phase2final999.xml

Authors: C. A. Palm, P. L. Woomer, J. Alegre, L. Arevalo, C. Castilla, D. G. Cordeiro, B. Feigl, K. Hairiah, J. Kotto-Same, R. Lasco, , A. Mendes, A. Moukam, D. Murdiyarso, R. Njomgang, W. J. Parton, A. Ricse, V. Rodrigues, S. M. Sitompul, M. van Noordwijk

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Various options for increasing the agricultural productivity at the ASB benchmark sites also have the potential to increase carbon sequestration. As mentioned in section 1.3, if degraded lands are planted to tree-based systems, the time-averaged C stocks in the vegetation increase as much as 50 t C ha^-1 in 20 to 25 years, while that in the soil increases by only 5 to 15 t C ha¹. Table 3 indicates the amount of above-ground carbon that could be sequestered through rehabilitation of degraded lands by conversion to other land-use systems. Extensive areas of degraded pastures in Brazil and degraded imperata grasslands in Indonesia could benefit from such rehabilitation. Efforts of teams in both countries are currently addressing this issue. It not just technological information that is necessary for rehabilitation of these degraded lands. Often it is policy issues, including land tenure and tree rights, as well as access to and the costs of inputs needed to implement the rehabilitation strategies, which prevent them from succeeding. This topic will be a major focus of the next phase of ASB.