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在生物量调查和热值测定的基础上 ,研究了三明莘口教学林场 34年生的木荚红豆群落的能量现存量。结果表明 :木荚红豆群落地上部分各组分的灰分含量、干重热值 (GCV)、去灰分热值 (AFCV)均以叶最高 ;地下部分的灰分含量、GCV、AFCV基本随根径的减小而增加。木荚红豆群落的灰分含量平均值乔木层 <灌木层 <草本层 ,而GCV、AFCV平均值乔木层 >灌木层 >草本层 ,其群落的能量现存量为 4839.2 0× 1 0 9J/hm2 ,其中地上部分为 41 70 .92× 1 0 9J/hm2 (占86.1 9% ) ,地下部分为 489.1 0× 1 0 9J/hm2 (占 1 0 .1 1 % ) ,群落的能量现存量 96.30 %分布在乔木层 ,其分布与生物量的分布基本一致
Based on the biomass survey and the calorific value measurement, the 34-year-old energy resources of M. podophylla community in Sanming Xinkou teaching forest farm were studied. The results showed that ash content, dry matter calorific value (GCV) and ash removal calorific value (AFCV) of the aerial parts of M. japonica were the highest in all leaves. The content of ash, GCV and AFCV in the underground part were basically the same with root diameter Reduce and increase. The average content of ash content in the redwood community was in the order of arbor layer shrub layer> herb layer, and the energy stock of its community was 4839.2 × 109J / hm2 The above-ground part was 41 70.92 × 109J / hm2 (86.1%), the underground part was 489.1 × 109J / hm2 (10.11%), and the community’s energy stock was 96.30% Arbor layer, its distribution and biomass distribution are basically the same