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首页> 外文期刊>Biomass & bioenergy >THE POTENTIAL FOR REDUCING ATMOSPHERIC CARBON BY LARGE-SCALE AFFORESTATION IN CHINA AND RELATED COST/BENEFIT ANALYSIS
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THE POTENTIAL FOR REDUCING ATMOSPHERIC CARBON BY LARGE-SCALE AFFORESTATION IN CHINA AND RELATED COST/BENEFIT ANALYSIS

机译：中国大型造林减少大气碳的潜力及相关的成本效益分析

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摘要

In this paper, the amount of carbon sequestered through large-scale afforestation and related costs and benefits are calculated, assuming that the forests are managed in perpetual rotations. Based on land availability for afforestation, 20 cases are identified in five suitable regions in China. The least expensive way of developing forests for the purpose of sequestering carbon emissions is the case of Pinus massoniana from the initial investment point of view, and then Spruce. The cases of open forest management are relatively less expensive options because of their low initial investment and long rotations, although their annual wood increments are low. Some less productive tree species have higher net costs for carbon sequestering. For most of the agroforestry systems the net costs are low, especially in the south, the southwest, and the north of China, though their initial investments are high. If the total land available is afforested, the net carbon sequestering will be about 9.7 billion tons under perpetual rotations, amounting to 16.3 times the total industrial carbon release in 1988 in China, and the total initial cost for such a programme is estimated at 19.3 billion US$. Some hindrances in developing forests in China are discussed.
机译：在本文中，假设森林是在永久性轮作中进行管理的，则可计算出通过大规模造林所固存的碳量以及相关的成本和收益。根据造林用地，在中国五个合适的地区确定了20个案例。从最初的投资角度出发，然后是云杉，为封存碳排放而开发森林的最便宜的方式就是马尾松。尽管其每年的木材增幅较低，但由于其初期投资低且轮伐期长，开阔森林管理的案例相对便宜些。一些生产力较低的树种的固碳净成本较高。对于大多数农林业系统而言，净成本很低，尤其是在中国的南部，西南和北部，尽管其初始投资较高。如果可利用的土地全部被绿化，则在永久轮作下的净碳固存量将约为97亿吨，相当于1988年中国工业碳释放总量的16.3倍，而该计划的初始总成本估计为193亿美元。美元$。讨论了中国发展森林的一些障碍。

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