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不同龄组马尾松人工林生物量及生产力的研究
Studies of the Biomass and Productivity of Different Age-group Pinus massoniana Plantation
【摘要】 对桂中丘陵区不同龄组马尾松人工林的生物量及生产力进行了研究.结果表明:幼龄林(8a生)生物量为32.0t/hm2,中龄林(14a生〕为108.0t/hm2、近熟林(23a生)为186.6t/hm2,成熟林(38a生)为197.4t/hm2;林分平均净生产量分别为4.00t/hm2·a.7.71t/hm2·a、8.12t/hm2·a和5.80t/hm2·a.
【Abstract】 The biomass and productivity of different age-group Pinus massoniana plantation in the hilly region of Central Guangxi have been studied.The results show that the biomass of young growth( 8- year) is 32.0t/ hm2 ,that of middle-aged stand( 14- year) is 108.0 t/hm2 ,that of near- mature forest( 23- year) is 186. 6 t/hm2 and that of mature forest( 38- year)is 197.4 t/hn2 ; and that the average stand net productivity of the four age groups are respectively 4. 0 t/hm2 · a,7. 7 t/hm2·a,8.1t/hm2·a and 5. 8 t/hm2 · a.
- 【文献出处】 中南林学院学报 ,JOURNAL OF CENTRAL SOUTH FORESTRY UNIVERSITH , 编辑部邮箱 ,1996年04期
- 【分类号】S718.556
- 【被引频次】75
- 【下载频次】297