摘要
基于完整造林周期,在不考虑碳泄露的裸地造林基础上,运用C-D生产函数对杉木固碳的影响因素进行分析,并讨论农户碳供给决策措施。研究表明:在造林期增加一定量的化肥投入,在抚育期增加间伐用工,在全过程中增加额外用工投入与杉木固碳能力存在正相关。农户家庭特征对杉木固碳能力影响不显著,地块特征和区域差异对杉木的固碳能力有不同程度的影响。同时,建立农户在碳汇收益下的决策最优化模型,农户杉木经营过程中需要考虑劳动力工资、生产资料价格、砍伐期木材价格以及碳价格,为今后农户碳汇经营提供决策工具支持。
An increase in forest carbon sinks is widely accepted as an important measure for reducing climate change. Based on the complete cycle of reforestation,and assuming without afforestation leakage of carbon sinks on bare land,this paper analyzed the factors of Chinese firs ’ carbon sequestration by using the C-D production function and discussed households’decision-making measures of carbon supply. This study shows that the increase in the amount of fertilizer at afforestation period,the increase in intermediate cutting labor at tending period,and the increase in employment of additional labor input in the whole process are positively related with Chinese fir carbon sequestration capacity. The characteristics of household have no significant impact on carbon sequestration capacity,while the characteristics of plots and regional differences have impact on Chinese fir carbon sequestration capacity to different degrees. Meanwhile,a decision-making optimizing model was established in this paper under the circumstance of carbon sink＇s benefits by households. Households need to consider the wages of labor and price of production materials,and also to take the price of wood and carbon into account in management of Chinese Fir. The model provides a decision-making support tool for households to manage carbon sink in the future.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2014年第9期129-137,共9页
Scientia Silvae Sinicae
基金
国家自然科学基金项目"中国南方集体林区森林碳汇供给潜力及政策工具"(71073148)
国家自然科学青年基金项目"森林经营主体的碳汇供给差异及其诱导机理研究"(71203198)
研究生科研创新基础项目"南方集体林区不同经营主体森林碳汇供给差异研究:以杉木为例"(3122013240275)
关键词
杉木
C-D生产函数
固碳能力
森林碳汇
决策方程
Chinese fir
C-D production function
carbon sequestration capacity
decision-making function
