毛竹群落能量动态的研究

Studies on the Energy Dynamic of Phyllostachys pubescens Community

研究了毛竹群落的能量动态,结果表明,1990年南靖和溪高才的毛竹群落地上部能量现存量为112309kJ/m^2,其中竹杆为88207kJ/m^2(占78.54％),枝为15566kJ/m^2(占 13.85％),叶为4595kJ/m^2(占4.09％),林下植物为3951kJ/m^2(占3.52％),毛竹标准样竹的样品中,杆、枝、叶的干重热值分别为19293J/g,18652J/g和18234J/g,群落能量在垂直分布的配置上为金字塔型的能量结构,5m以下能量现存量占地上部的52.23％,往上逐渐减少。

This paper studied the energy dynamic of Phyllostachys pubescens Community. The result showed that: The standing energy in the aboveground part of the community in August, 1990 was 112 309 kJ/m2,Among all the components, the stem stored most of the energy, which was 88 207 kJ/m2(made up 78. 54%),and the branch, leaf and plants in undergrowth were 15 556 kJ/m2 (13- 85%),4 595 kJ/tn2(4. 09%) and 3 951 kJ/m2(3. 52%) respectively. The gross caloric value in stem, branch and leaf was. 19 293 J/g,18 652 J/g and 18 234 J/g. The energy structure of the aboveground like a pyramid, the lower part from 0 to 5 m in height made up 52. 23%.