Characteristics of Stand Regeneration of Two Forest Types in Natural Larix gmelinii Forest

Abstract

Abstract: The analysis of this paper shows that different stand structures have different influences on the regeneration of Larix gmelinii in Daxing’anling Mountains in Inner Mongolia. The results indicate:1)comparing to Ledum-Larix forest aged 54~63a and herbage-Larix forest aged 36~48a, the average regeneration density of herbage-Larix forest aged 56~65a reaches to 1 363 trees/ha,which is higher than the fomerby 12.8% and the latter 36.5%;2) When other circumstances are similar, with the increase of stand age and density, herbage-Larix forest aged 36~65a with density of 315~3 263trees/hm² and Ledum-Larix forest aged 54~63a with density of 865~2 241trees/hm² show increasing trend of stand regeneration. And regeneration density increases with increasing of the number of decay level of dead tree and the extent of their decay. However, the regeneration density dropped with the increasing of coverage of herbage and shrub.3)Different distribution pattern has different stand regeneration. The average regeneration density of clustered distribution, random distribution and even distribution are 1 415trees/ha,1 165trees/ha and 118trees/ha respectively.

Key words: Larix gmelinii, natural forest, stand structure, regeneration

CLC Number:

YU Bao, WU Jisiguleng, WANG Baitian, WANG Liming. Characteristics of Stand Regeneration of Two Forest Types in Natural Larix gmelinii Forest[J]. FOREST RESOURCES WANAGEMENT, 2009, 0(6): 64-69.

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