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分析了广东黑石顶自然保护区南亚热带常绿阔叶林林隙的形成方式及其特征.结果表明,在南亚热带常绿阔叶林中,由树木折干形成的林隙最为普遍,占51.86%,其次是由于掘根风倒而形成的,占38.98%.林隙大多由两株树木形成,平均每个林隙拥有形成木2.63株.扩展林隙的大小多在100~300m2之间,其中以200~300m2者所占的面积比例最大,而以100~200m2者所占的数量比例最大.冠空隙的大小多在100m2以下,其中以50~100m2所占面积比例最大,而以50m2以下的所占数量比例最大.大部分林隙是在大约40年前形成的,其中以10年前形成的林隙最多.林隙形成木分布最多的径级在20~30cm之间,高度在20~30m之间.每株形成木所能形成的扩展林隙面积为72.94m2,冠空隙面积为25.06m2.
The formation and characteristics of gaps in the evergreen broad-leaved forest in the South Subtropical Zone of Heishiding Nature Reserve in Guangdong Province were analyzed. The results showed that in South Asia subtropical evergreen broad-leaved forest, the gap formed by the folding of trees was the most common, accounting for 51.86%, followed by 38.98% due to the dredging wind. Most of the gaps are formed by two trees, with an average of 2.63 trees per tree gap. The size of the expansion gap is mostly between 100 and 300m2, of which the area proportion of 200 ~ 300m2 is the largest, while that of the area of 100 ~ 200m2 is the largest. The size of the crown gap mostly below 100m2, of which 50 ~ 100m2 accounted for the largest proportion of the area, while the largest proportion of the following 50m2. Most of the gap was formed about 40 years ago, of which the largest gap formed 10 years ago. The diameter distribution of wood with the largest gap distribution is between 20-30 cm and the height is between 20-30 m. Each plant can form the formation of wood expansion gap area of 72.94m2, crown gap area of 25.06m2.