摘要
通过对海南省黎母山热带山地雨林的1500m^2皆伐样地地上部分生物量测定,表明高于世界热带各地林分的平均值,达507.242t/ha。叶面积指数为9.572。经群落现存量在林木各径级和各层次中分配比例的分析,发现这片林分可能在300年前受过一次干扰破坏,表明热带林受破坏后恢复到成熟顶极状态需要较长的时间。本文提出了乔木单株及树干、树皮、枝、叶的生物量和叶面积估测的回归模型,并首次提出了热带地区板根和木质藤本生物量的回归模型,为相似的植被类型生物量估测提供依据。
The biomass distribution of tropical mountain rain forest (samplingplot area 1500m^2, clear-cutting) in Limushan, Hainan Island is studied.The result indicated that the total biomass above ground was larger thanthe average value of the tropical area in the world. The total biomass is507.242t/ha, among which the tree layer biomass was 492.65t/ha, loweralyer wood and grass 13.94t/ha, woody liana 0.67t/ha, epiphyte 0.06t/haand parastic plants 0.15t/ha. The LAI value is as high as 9.572. By theanalysis of tree biomass distributing in each DBH class and sub-layer,the authors found that the forest might be disturbed 300 years ago, andthis indicated the tropical forest need very long time to recover the climaxstate after disturbance. In order to estimate the biomass of the similarforest communities, 8 regressive models had been proposed. The modelsincluded the whole tree bio mass (above ground), the trunk, bark, branchleaf, plank-but-tress, woody liana biomass and the leaf area.
关键词
热带山地雨林
生物量
回归模型
Hainan
Tropical mountain rain forest
biomass
Regressive models
