Cost and benefit of Cunninghamia lanceolata carbon sequestration based on AR-projects
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摘要: 通过林业活动固碳已成为应对气候变化的重要措施。根据土地利用机会成本及净现值的基本原理，以中国南方集体林区典型林场为案例点，以杉木Cunninghamia lanceolata为案例树种，借鉴Bentez 固碳模型和杉木生长模型，基于造林再造林项目，对浙江、福建、江西等3省的杉木固碳成本进行了分析。结果表明：考虑土地农业生产机会成本且利率为5%的情况下，杉木固碳成本江西＜浙江＜福建，江西省固碳成本最低，是3省中最适宜造林固碳的省份；3省的固碳成本对利率、木材价格都敏感。利率越低，木材价格越高，最优轮伐期越短，杉木固碳成本越低。固碳成本与利率、木材价格的变化关系为使用政策手段降低固碳成本提供了可能。图3表3参16Abstract: Forest carbon sequestration is widely accepted as a significant strategy to mitigate climate change. Based on the basic principles of land use opportunity cost and net present value, and applied Bentez model of carbon sequestration and Cunninghamia lanceolata growth model, this paper analyzed the cost-benefit of carbon sequestration of afforestation projects in Zhejiang, Jiangxi and Fujian Provinces. The results indicated that when the opportunity cost of land use was considered and the interest rate was 5 per cent, the cost of carbon sequestration in Jiangxi Province was lower than that in Zhejiang and Fujian Provinces; in terms of the cost of carbon sequestration, Jiangxi Province was the most suitable place for carbon sequestration. The costs of carbon sequestration in three provinces were all sensitive to the interest rate and timber price. The lower the interest rate was, the higher the timber price would be, and the shorter the optimum rotation and the lower the carbon sequestration cost. The correlation among the cost of carbon sequestration, interest rate and timber price makes it possible to use policy tools to reduce the cost of carbon sequestration. ［Ch, 3 fig. 3 tab. 16 ref.］
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Key words:
- forest economics /
- Cunninghamia lanceolata /
- carbon sequestration /
- cost-benefit /
- optimal rotation
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2015.01.019
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