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Citation:

Biomass Allocation of Different Species Plantations in Subtropical Area of China

  • Received Date: 2013-09-04
  • The allocation patterns of biomass in five plantations were studied by harvesting method and established allometric equations in subtropical area of south China. The results showed that the biomass of different species plantations were quite different in the same circumstances such as similar site conditions, age and management measures, showing that Mytilaria laosensis stand (404.95 t·hm-2) > Michelia macclurei stand (376.61 t·hm-2) > Pinus massoniana stand (239.94 t·hm-2) > Castanopsis hystrix stand (231.01 t·hm-2) > Mesua ferrea stand (181.06 t·hm-2). The biomass spatial pattern dominated by tree layer, which accounted for 87.71%-97.86%, followed by the litter layer, accounting for 1.96%-10.90%, shrub and herb layers were the minimum, accounting for only 0.02%-1.09%. The organ biomass pattern of tree layer showed that proportion of stem biomass was the largest, followed by the root's or branch's, and then followed by the bark's, the lowest was the leaf's overall. The biomasses of shrub layer, herb layer, and floor litter among different stands were quite different. C. hystrix stand and P. massoniana stand had higher biomass of shrub layer, Mytilaria laosensis stand and Michelia macclurei stand were lower, Mesua ferrea stand was the lowest. The biomasses of herb layer and floor litter showed a similar law, that of P. massoniana stand was the highest, C. hystrix secondly, Mytilaria laosensis stand, Michelia macclurei stand and Mesua ferrea stand were lower.
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Biomass Allocation of Different Species Plantations in Subtropical Area of China

  • 1. Experimental Center of Tropical Forestry, Chinese Academy of Forestry, Pingxiang 532600, Guangxi, China
  • 2. Guangxi Youyiguan Forest Ecosystem Research Station, Pingxiang 532600, Guangxi, China

Abstract: The allocation patterns of biomass in five plantations were studied by harvesting method and established allometric equations in subtropical area of south China. The results showed that the biomass of different species plantations were quite different in the same circumstances such as similar site conditions, age and management measures, showing that Mytilaria laosensis stand (404.95 t·hm-2) > Michelia macclurei stand (376.61 t·hm-2) > Pinus massoniana stand (239.94 t·hm-2) > Castanopsis hystrix stand (231.01 t·hm-2) > Mesua ferrea stand (181.06 t·hm-2). The biomass spatial pattern dominated by tree layer, which accounted for 87.71%-97.86%, followed by the litter layer, accounting for 1.96%-10.90%, shrub and herb layers were the minimum, accounting for only 0.02%-1.09%. The organ biomass pattern of tree layer showed that proportion of stem biomass was the largest, followed by the root's or branch's, and then followed by the bark's, the lowest was the leaf's overall. The biomasses of shrub layer, herb layer, and floor litter among different stands were quite different. C. hystrix stand and P. massoniana stand had higher biomass of shrub layer, Mytilaria laosensis stand and Michelia macclurei stand were lower, Mesua ferrea stand was the lowest. The biomasses of herb layer and floor litter showed a similar law, that of P. massoniana stand was the highest, C. hystrix secondly, Mytilaria laosensis stand, Michelia macclurei stand and Mesua ferrea stand were lower.

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