中国人工林碳汇研究进展

人工林是中国森林的重要组成部分,且人工林能吸收大气中CO2成为碳汇。总结了人工林生态生物量测定方法及模型和土壤碳汇研究方法及模型,介绍了中国主要的人工林的固碳能力。指出现阶段人工林碳汇研究推绎到大尺度时存在的困难,应及时修订或验证已有的生物量———蓄积量模型,整合经验相对生长方程,将3S(GPS,RS和GIS)技术运用于生物量估算,提高估算结果的准确性和可信度。在计算碳汇时,应根据不同树种采用不同的转换系数。

Advanced in Carbon Sink of Plantation in China

Plantation is an important part of forestry in china,what’s more it can transfer CO2 in air into carbon sink.In this passage,it concluded the way and the model of calculating biomass in plantation and carbon sink in soil,recommending the ability of storing carbon of main plantations in china.It also pointed out that it was very difficult to put into large scale with present method.The volume-biomass and allometric equations were needed to be modified and recalculated.In order to improve the accuracy and reliability of the results,the 3S should be applied in calculating biomass.Different internal conversion coefficient should be used in different species of trees when calculating carbon sink.