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云勇森林公园杉木生态公益林改造后群落物种组成
盘李军1, 何增丽1, 冼伟光1, 谭莎1, 吴华俊1, 吴文凤1, 唐光大2, 许涵3
1.广东省佛山市云勇生态林养护中心 广东佛山;2.华南农业大学林学与风景园林学院, 广东 广州;3.中国林业科学研究院热带林业研究所, 广东 广州
摘要:
以佛山市云勇森林公园杉木Cunninghamia lanceolata 纯林改造约12 年后的林分为研究对象,开展群落物种组成调查。结果显示:12 个样地共记录维管植物171 种,隶属于78 科135 属;其中乔木层共有维管植物96 种,优势种主要有杉木C. lanceolata、米老排Mytilaria laosensis、西南木荷Schima wallichii 等;群落径级分布呈倒“J”型,小径级植株最多,共有植株4 395 株,占总植株数的89.33%;草本层植物116 种,优势种主要有乌毛蕨Blechnum orientale、弓果黍Cyrtococcum patens、半边旗Pteris semipinnata 等。林分改造12 年后,杉木的萌生枝在乔木层中占有较大的重要值,说明其萌生能力较强,而米老排等改造树种也正成为乔木层的主要树种;草本层的物种非常丰富,说明林分改造后生态公益林的生物多样性正在逐步提高。
关键词:  林分改造  生态公益林  云勇森林公园
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Species Composition of Rebuilding Cunninghamia lanceolata Ecological Public Welfare Forests in Yunyong Forest Park, Foshan
PAN Lijun1, HE Zengli1, XIAN Weiguang1, TAN Sha1, WU Huajun1, WU Wenfeng1, TANG Guangda2, XU Han3
1.Maintenance Center of Yunyong Ecological Forest;2.College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou Guangdong;3.China Research Institute of Tropical Forestry, Chinese Academy of Forestry
Abstract:
The survey of species composition was studied in the rebuilt Cunninghamia lanceolata forests, transformed after about 12 years, in Yunyong Forest Park. 171 species of vascular plants were recorded in the 12 sample sites, which belonging to 78 families and 135 genera, of which 96 species of vascular plants were recorded at the arbor level. The dominant species were C. lanceolata, Mytilaria laosensis, Schima wallichii, and etc. There was large number of small-diameter plants (4 395 individuals) and the diameter distribution was inverted“ J” shaped, which accounted for 89.33% of the total number of individuals. 116 species were recorded in the herbaceous layer, with the dominant species Blechnum orientale, Cyrtococcum patens and Pteris semipinnata, and etc. The rich herbaceous layer plants indicated that the biodiversity of ecological public welfare forests was increasing step by step.
Key words:  forest improvement  ecological public welfare forests  Yunyong Forest Park