石梅湾青皮林群落结构及天然更新特征

林业资源管理 ›› 2011›› Issue (2): 54-59.

石梅湾青皮林群落结构及天然更新特征

刘淑菊, 郝清玉

海南师范大学生命科学学院,海口 571158

收稿日期:2011-02-14 修回日期:2011-03-31 出版日期:2011-04-28 发布日期:2020-12-21
通讯作者: 郝清玉(1963-),男,吉林舒兰人,副教授,博士,研究方向:恢复生态学。Email:hnhaoqy@126.com
作者简介:刘淑菊(1985-),女,山东宁津人,在读硕士,主要研究方向:生态学。
基金资助:
国家自然科学基金项目(31060092)

Community Structure and Natural Regeneration Characteristics of Vatica mangachapoi Forest in Shimei Bay

LIU Shuju, HAO Qingyu

School of Life Science,Hainan Normal University,Haikou 571158,Hainan,China

Received:2011-02-14 Revised:2011-03-31 Online:2011-04-28 Published:2020-12-21

摘要/Abstract

摘要： 通过样方调查法对石梅湾青皮林群落结构及天然更新特征进行了调查分析,结果显示:过伐林和次生林的特征较明显,过伐林比次生林的青皮断面积和平均胸径分别高53.98%和19.43%,而次生林比过伐林的青皮密度高17.47%;两林分中均为青皮占绝对优势,青皮组成均为95%(断面积),且重要值均高于0.80;次生林和过伐林中青皮的径级结构主要分布在5～20cm径级,其中5～10cm径级株数最多,分别占总株数的74.57%和66.06%;2种林分幼树更新数量充足,但过伐林青皮幼苗更新不足,仅1 550株/hm²;更新幼苗、幼树均呈聚集分布,且聚集程度很高。

关键词: 青皮, 天然更新, 石梅湾

Abstract: The Vatica mangachapoi forest in Shimei Bay has an important role of natural model in rehabilitation and reconstruction of coastal shelterbelt.The characteristics of community structure and natural regeneration in Shimei Bay Vatica mangachapoi forest were investigated and analyzed by using plot survey method and the results showed:overcut forest and secondary forest have obvious different features,in which the basal area and average DBH of the Vatica mangachapoi in the overcut forest were 53.98% and 19.43% higher than those in the secondary forest,but the density of the Vatica mangachapoi in the secondary forest was 17.47% higher than that in the overcut forest.The Vatica mangachapoi was the predominant species in the two kinds of forest stands,with over 95% of Vatica mangachapoi composition (basal area) and over 0.8 of the importance value.The diameter structure of Vatica mangachapoi was mainly distributed among 5～20cm diameter classes,in which most of trees are in 5～10cm diameter classes,with 74.6% and 66.1% of the total numbers separately in secondary forest and overcut forest.The natural regeneration numbers of the Vatica mangachapoi saplings in the two kinds of stands were adequate,but the numbers of seedlings in the overcut forest were inadequate,with only 1550 trees per hectare.The regeneration seedlings and saplings fit aggregated distribution,with a very high degree of aggregation.

Key words: Vatica mangachapoi, natural regeneration, Shimei Bay

中图分类号:

刘淑菊, 郝清玉. 石梅湾青皮林群落结构及天然更新特征[J]. 林业资源管理, 2011,(2): 54-59.

LIU Shuju, HAO Qingyu. Community Structure and Natural Regeneration Characteristics of Vatica mangachapoi Forest in Shimei Bay[J]. FOREST RESOURCES WANAGEMENT, 2011,(2): 54-59.

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