闽南毛竹林的生物量和生产力

Studies on the Biomass and Productivity of Phyllostachys pubescens Community in South Fujian

首次研究了福建毛竹群落的生物量和生产力.样地设于闽南的南靖和溪高才,结果表明,毛竹群落1990年现存量为8289g/m^2,其中毛竹种群生物量为7794g/m^2(占94.03％),林下灌木草本的生物量为495g/m^2(占5.97％).生物量在毛竹种群各组分中的分配为竹杆4572g/m^2(占58.67％)>竹根1344g/m^2(占17.25％〕>竹枝834g/m^2(占10.70％)>竹鞭792g/m^2(占10.16％)>竹叶252g/m^2(占3.23％).1990年总净初级生产量为2146.7g/m^2,其中地上部分为1077.5g/m^2(占50.2％)。生物量和生产力的研究为福建省毛竹林的高产、丰产提供了科学依据.

This paper deals with the biomass and productivity of Phyllostachys pubescens community in South Fujian area. The main results of the measurement were as follows; 1)The standing crop of the community in 1990 was 8 289 g/m2: that of the Phyllostachys pubescent was 7 794 g/m2,and that of other plants in undergrowth was 495 g/m2. 2)The percentage of each component of Phyllostachys pttbescens were:. Stem 4 572g/m2(58. 67%)>Root 1 344 g/m2(17. 25%)>Branch 834 g/m2 (10. 70%)>Whip 792 g/m2, (10. 16%)>Leaf 252 g/m2(3. 23%). 3)The annual net primary production of the community in 1990 was 2 146. 7 g/m2,in which the aboveground part was 1 077. 5 g/m2(made up 50. 2%).