Dynam ic Changes of Biomass and its Allocation of Cunninghamia lanceolata Plantation in Nor thern Fujian Prov ince
Abstrcat [Objective] To research the dynamic changes of biomass and its allocation of Cunning hamia lanceolata Plantation in Northern Fujian Province .[Method] With C.lanceolata plantation as the research object, 46 sample plots were designed in typical region.Biomass of 46 sample trees was detected by harvesting method.Stand age was within the range of 5-33.[Result]Regression mode between C.lanceolata organ and bio-mass and the detection indexes (diameter at breast height and plant height) was established.Except leaf and branch,other organs and the whole plant had relatively good regression.With the increase of stand age,biomass of organ and whole plant increased gradually,and reached stable at about 40stand age .Regression model of wood biomass and stand age was established.With the increase of stand age,percentage of trunk biomass increased gradually;while those of other organs decreased gradually.The stand age was stable at about 25 years.[Conclusion] With the increase of stand age, C.lanceolata biomass and its allocation show predictable dynamic changes.
Cunninghamia lanceolataBiomassBiomass allocationStand ageNorthern Fujian Province
国家科技期刊平台
NSTL
万方数据
