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Carbon Uptake and Water Use of Vegetation Under Climate Change

Accumulation and storage of carbon in trees is one method of sequestration which may help offset increasing atmospheric CO2 concentrations. However, for every molecule of CO2 absorbed by a leaf, up to a thousand molecules of water are released as transpiration, water that has moved out of the soil into the atmosphere. Therefore, simply planting more trees to absorb more CO2 is not as risk-free as may originally be thought, (more)...

Pastoralists' perceptions of the benefits and cost of buffel grass

This report is an attempt to quantify the broad spectrum of benefits and costs of buffel grass to pastoralists, and the likely pastoral response to potential changes in buffel grass management strategies that aim to minimise the environmental costs of…

Economic assessment of selected investments of the National Program for Sustainable Irrigation (Phase1)

return on investment report

The National Program for Sustainable Irrigation (NPSI) required cost-benefit analyses to be undertaken on a number of its research investments from Phase 1 of the Program. Phase 1 of NPSI ran from July 2002 to June 2007. Eleven investments from Phase 1 were identified by NPSI as having potential for analysis, and these 11 investments were scanned by Agtrans using six criteria to further determine their suitability (more)...