Study About Mature For Carbon Storage Of Larch Plantation In Heilongjiang Province

Based on the 42 sample trees of carbon storage and biomass investigation data of fixed sample plots of larch plantation from 2006 to 2007.The carbon storage compatibility model of larch was builded and the regular of carbon storage in difference site conditions and density was discussed, than determine the mature age of carbon storage in defrent site conditions to provide the basic theory and method for forest management which put carbon storage as management objectives.The results shows that the single tree compatiable carbon model which was builded by carbon storage directly has the higher precision; the carbon storage model whice was based on Gompertz theoretical growth equation has the higher precision; larch plantation at I, â…¡,â…¢ level site conditions had the average carbon storage of 1.45 1.25 and1.09t-hm-2 and carbon storage maturity age of 36.138.7 and 42.5 years when the stand density was 1000 N-hm"2; larch plantation at â… ,â…¡,â…¢ level site conditions had the average carbon storage of 1.53 1.32 and 1.15t-hm-2 and carbon storage maturity age of 34.3 37.6 and 41.4 years when the stand density was 2500 N-hm-2; larch plantation at â… , â…¡,â…¢ level site conditions had the average carbon storage of 1.56 1.34 and 1.16t-hm"2 and carbon storage maturity age of 33.6 36.1 and 40.0 years when the stand density was 3300 N-hm"2. Research suggests that the carbon storage of same stand age rises and the carbon storage maturity age reduced with the increascent of site condition when the stand density was samed; the carbon storage of same stand age rises and the carbon storage maturity age reduced with the increascent of stand density when the site condition was samed. It shows that the increment of carbon is changed, after some years, it will decrease with the age increase.