forest productivity
1.Although the decomposition rate of CWD was relatively fast, it was still comparable to that of the soil organic carbon in the region, suggesting that CWD can play an important role in the global carbon cycle. Keeping CWD on the forest floor is a critical strategy for maintaining forest productivity and implementing sustainable forest management in southern China.
3.The Study on the Productivity of phyllostachys heterocycal forest mixed with broadieaved trees in East Fujian showed that the mixed forest had higher productivity compared with pure forest, the mean DHB beight and mean weight and M of culm increased by 17.9%、8.7%、37.53% and 25.6% respectively, the density, evenness, uniform and ILA were all higher than pure forest
4.Based on the new data of continuous forest inventory of Yunnan Province in 2002,the forest biomass and productivity in Yunnan are estimated using the biomass expansion factors (BEF,defined as the ratio of all stand biomass to growing stock volume) of various forest types,which provide important information for carbon storage study and forest ecosystem assessment.
5.Abstract: Forest ecosystem management takes forests as a com plex ecosystem.In the process of managing and utilizing forest resources,the eco system should be maintained in a healthy and integrated state,and its function be kept for a long time in good condition.For this purpose,the paper puts forward a basic unit-dividing method for forest ecosystem management,using subcompartm ent dividing combined with forest type dividing.It also discusses the relations of forest structure with ecosystem productivity,productive potentiality and biod iversity under forest ecosystem management.
6.Forest ecosystem management takes forests as a com plex ecosystem.In the process of managing and utilizing forest resources,the eco system should be maintained in a healthy and integrated state,and its function be kept for a long time in good condition.For this purpose,the paper puts forward a basic unit-dividing method for forest ecosystem management,using subcompartm ent dividing combined with forest type dividing.It also discusses the relations of forest structure with ecosystem productivity,productive potentiality and biod iversity under forest ecosystem management.
7.Results demonstrate that with the succession going on from herbosa→shrubs→coniferous forest→theropencedrymion→evergreen broad-leaved forest, abundance and diversity index of species, biomass and productivity of vegetation all show a rising trend prior to the formation of a mature and stable biotic climax.
8.On the Long-Term Productivity Maintenance of Monoculture Olga Hay Larch Timber Forest in Northeastern China
9.Biomass and primary productivity of dominant species Aporosa yunnanensis and Blastus cochinchinensis of forest vegetation on Dinghu Mountain.
10.Basing on the dynamic data,the essay expatiates on the relationships between forest resource and environment,concludes that the mainreason of decrease of forest ecological capacity lies in its structure degeneration,which makes environment worse,then gives some suggestions,improving the structure of forest ecosystem on the principle of quality and quantity, protecting and exploiting biodiversity resource rationally to develop ecologic productivity and constructing a forestry in dustry system abounding with drainage basin feature.
