山西农业大学学报（自然科学版）2011，Vol.31Issue(1)：30-34,5.
坡向和坡位对水曲柳中龄林生长的影响
Influence of Aspect and Position of Slope on the Growth of Mid-age Fraxinus mandshurica Rupr.Plantation
摘要
Abstract
This study investigated the effects of aspect and position of slope on the growth and biomass allocation of midage Fraxinus mandshurica plantation in Maoersan region, Heilongjiang Province. The results showed that aspect of slope played a more important role in DBH (diameter at breast height) and dominant tree height at stand level than position af slope. However, two-way ANOVA indicated only aspect of slope has a significant effect on the dominant tree height (P＜O. 05). Overall, the growth for stand located at the west-facing slope is better than the east-facing slope,in addition, the effect of position of slope on the forest growth was strongly controlled by aspect of slope. At stand level, total tree biomass and each component were higher for plots at the west-facing slope than those at the east-facing slope. The frequency distribution of DBH size classes showed a large impact on the biomass allocation at stand level.Previous studies have shown young stand of F. mandshurica grew poorly at down position at the west-facing slope.However. such stand at mid-age stage grows well at present. These findings indicated that both aspects of slope and position of slope exert important impacts on the growth of F. mandshurica plantation. and imply that the relationship between the stand growth and site conditions may vary with stand age.关键词
坡向/坡位/立地条件/异速生长/水曲柳Key words
Aspect of slope/ Position of slope / Site condition/ Allometry/ Fraxinus mandshurica Rupr分类
农业科技引用本文复制引用
王向荣,孙海龙,余鑫,谷加存..坡向和坡位对水曲柳中龄林生长的影响[J].山西农业大学学报（自然科学版）,2011,31(1):30-34,5.基金项目
中央高校基本科研业务费专项资金(DL09BA07) （DL09BA07）
"十一五"国家林业科技支撑计划课题(2006BAD24B0802) （2006BAD24B0802）
