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印度米佐拉姆不同柚木林分生长蓄积量变异(英文)
作者单位:Department of Forestry Mizoram University,Department of Forestry,Mizoram University,Department of Forestry,Mizoram University,Aizawl-796001,Mizoram,India,Aizawl-796001,Mizoram,India,Aizawl-796001,Mizoram,India
摘    要:
评估了印度米佐拉姆3种柚木林分(Tuirial:500m asl,Sairang:200m asl和Phunchawng:550m asl)在2006年生长蓄积量。为了掌握柚木体积特性和种群结构,随机建立5个直径等级,即a(10-20cm),b(20-30cm),c(30-40cm),d(40-50cm),和e(50-60cm)。研究表明,研究地内个体密度在280-620stems·hm-2之间,平均直径在27.48—35.43cm之间,平均高度为17.87-22.24m,总的基础面积为24.28-45.80m2·hm-2,最大和最小总生长蓄积量分别为669.01m3·hm-2和284.7m3·hm-2。该物种现有种群结构确保其可以长期存在。

关 键 词:基础面积  生长蓄积量  种群结构  林分密度

Growing stock variation in different teak (Tectona grandis) forest stands of Mizoram, India
Vinod Prasad Khanduri,Lalnundanga,J. Vanlalremkimi. Growing stock variation in different teak (Tectona grandis) forest stands of Mizoram, India[J]. Journal of Forestry Research, 2008, 19(3)
Authors:Vinod Prasad Khanduri  Lalnundanga  J. Vanlalremkimi
Abstract:
The growing stock assessment of three different teak forest stands (Tuirial: 500 m asl, Sairang: 200 m asl and Phunchawng: 550 m asl) was done in 2006 in Mizoram, India. Five diameter classes were arbitrarily established for knowing the volume attribute data and population structure, viz. a (10-20 cm), b (20-30 cm), c (30-40 cm), d (40-50 cm), and e (50-60 cm). Results revealed that the density of the individuals among the studied stands varied from 280 stems/ha to 620 stems/ha. The average diameter of all the individuals ranged between 27.48 cm and 35.43 cm. Similarly, the average height was oscillated between 17.87 m and 22.24 m. The total basal area was recorded between 24.28 m2·ha-1 and 45.80 m2·ha-1. The maximum and minimum values of total growing stock under all the diameter classes were 669.01 m3·ha-1 and 284.7 m3·ha-1, respectively. The representation of population structure of different stands explained that the perpetuation of this species was ensured for a quite long time.
Keywords:basal area  growing stock  population structure  stand density
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