Influences of Permanence on the Comparative Value of Biological Sequestration versus Emissions Offsets
用净现值框架分析非永久性如何影响土地生物固碳的经济价值，发现农业土壤和造林碳汇的价值折扣分别为38-55%和51-99%，并模拟了该折扣对美国农业温室气体减排潜力的影响。
We use a net present value framework to examine the impact of non-permanence on the economics of land-based biological carbon sequestration. Contingent on assumptions about discount rates, management, and carbon prices trajectories, and payment contract design, we find the adjusted value of carbon sequestration relative to permanently available emission offsets to be between 38 and 55 percent for agricultural soil offsets and between 51 and 99 percent for afforestation offsets. Simulations with an Agricultural Sector Model show the empirical effect of sequestration value discounts on the total potential of U.S. agricultural sinks to mitigate greenhouse gas emissions within a multistrategy setting.