宽阔水保护区白辛树群落物种组成及种群结构分析
|
摘要
为了解贵州宽阔水国家级自然保护区白辛树(Pterostyrax psilophywus)群落物种组成及种群结构特征,选取保护区内白辛树群落主要分布范围进行调查分析.结果表明:调查群落样地内共有维管植物42科, 71属, 84种,其中蕨类植物1科, 1属, 1种;种子植物41科, 70属, 83种;无裸子植物,被子植物41科, 70属, 83种;单子叶植物4科, 5属, 7种;双子叶植物37科, 65属, 76种.物种组成较为单一.白辛树虽占据优势,但龄级结构不正常,呈"两头多,中间少".群落物种多样性指数及均匀度指数不高.白辛树幼苗和幼树极少,更新困难,且受林下金佛山方竹(Chimonobambusa quadrangularis)干扰较强,大径阶植株比重大,年龄结构总体呈衰退型.种群在该区处于濒危状态,亟待保护.
In order to understand the species composition and population structure characteristics of the Pterostyrax psilophywus community of Guizhou Kuankuoshui National Nature Reserve, the main distribution range of the Pterostyrax psilophywus community in the protected area has been investigated and analyzed. The results show that there are 42 families and 71 genera and 84 species of vascular plants, including 1 families, 1 genera, 1 species of ferns, there were 41 families and 70 genera and 83 species of seed plants; And 41 families and 70 genere and 83 species of angiosperm plants which is Non gymnosperm plants; and 4 families and 5 genera and 7 species of monocotyledon plants,37 families and 65 genere and 76 species of dicotyledon plants. Species composition is relatively unitary. Although the dominant species of Pterostyrax psilophywus are dominant, the age class structure is not normal, showing "The two heads are more, the middle is less." The community species diversity index and evenness index are not high. The seedlings and young trees of the Pterostyrax psilophywus are very few, the regeneration is difficult, and the interference of the Chimonobambusa quadrangularis under the forest is stronger, the larger diameter of the plant and the specific weight is more important, and the age structure is generally declining. Population in this area is in an endangered state and needs urgent protection.
In order to understand the species composition and population structure characteristics of the Pterostyrax psilophywus community of Guizhou Kuankuoshui National Nature Reserve, the main distribution range of the Pterostyrax psilophywus community in the protected area has been investigated and analyzed. The results show that there are 42 families and 71 genera and 84 species of vascular plants, including 1 families, 1 genera, 1 species of ferns, there were 41 families and 70 genera and 83 species of seed plants; And 41 families and 70 genere and 83 species of angiosperm plants which is Non gymnosperm plants; and 4 families and 5 genera and 7 species of monocotyledon plants,37 families and 65 genere and 76 species of dicotyledon plants. Species composition is relatively unitary. Although the dominant species of Pterostyrax psilophywus are dominant, the age class structure is not normal, showing "The two heads are more, the middle is less." The community species diversity index and evenness index are not high. The seedlings and young trees of the Pterostyrax psilophywus are very few, the regeneration is difficult, and the interference of the Chimonobambusa quadrangularis under the forest is stronger, the larger diameter of the plant and the specific weight is more important, and the age structure is generally declining. Population in this area is in an endangered state and needs urgent protection.
引文
[1] 安永平, 张桂琴. 加快固原市林业生态建设的思考 [J]. 宁夏农林科技, 2010(6): 123,76.
[2] 狄维忠, 郑宏春. 国家重点保护植物——白辛树 [J]. 西北大学学报(自然科学版), 1989, 19(3): 29-32.
[3] 秦岭林区速生树种及适生立地条件课题组. 白辛树群落结构与生长调查 [J]. 陕西林业科技, 1989(1): 28-30.
[4] 陈焦成. 白辛树育苗技术 [J]. 陕西林业科技, 1993(3): 16.
[5] 陈进成, 付小华, 何百锁, 等. 白辛树人工繁育造林与生长研究 [J]. 陕西林业科技, 2014(5): 77-79,85.
[6] 蔡长顺. 野生白辛树生长状况研究 [J]. 林业科技开发, 2002, 16(增刊): 46-47.
[7] 杨焱冰, 陈光平, 安明态, 等. 宽阔水国家级自然保护区兰科植物多样性及分布 [J]. 现代农业科技, 2017(5): 137-140.
[8] 孙巧玲, 苟光前, 王瑶, 等. 宽阔水自然保护区蕨类植物初步研究 [J]. 山地农业生物学报, 2016, 35(5): 18-21.
[9] 张金屯. 数量生态学 [M]. 北京: 科学出版社, 2004.
[10] 贺金生, 陈伟烈, 李凌浩. 中国中亚热带东部常绿阔叶林主要类型的群落多样性特征 [J]. 植物生态学报, 1998, 22(4): 303-311.
[11] 马克平, 黄建辉, 于顺利, 等. 北京东灵山地区植物群落多样性的研究Ⅱ丰富度、 均匀度和物种多样性指数 [J]. 生态学报, 1994, 15(3): 268-277.
[12] 刘方炎, 李昆, 廖声熙, 等. 濒危植物翠柏的个体生长动态及种群结构与种内竞争 [J]. 林业科学, 2010(10): 23-28.
[13] 张文辉, 王延平, 康永祥, 等. 濒危植物太白红杉种群年龄结构及其时间序列预测分析 [J]. 生物多样性, 2004, 12(3): 361-369.
[14] 段仁燕, 王孝安, 黄敏毅, 等. 太白红杉(Larix chinensis)混交林径级结构与竞争的关系 [J]. 生态学报, 2007, 27(11): 4919-4924.
[15] 杨汉远, 冯邦贤, 袁茂琴, 等. 珍稀濒危植物小叶红豆种群格局及濒危原因分析 [J]. 种子, 2013, 32(6): 52-54.
[16] 贾鹏, 闫明, 石旭, 等. 山西霍山辽东栎群落乔木层研究——种间关系及年龄结构 [J]. 山地农业生物学报, 2009, 28(3): 208-213.
[2] 狄维忠, 郑宏春. 国家重点保护植物——白辛树 [J]. 西北大学学报(自然科学版), 1989, 19(3): 29-32.
[3] 秦岭林区速生树种及适生立地条件课题组. 白辛树群落结构与生长调查 [J]. 陕西林业科技, 1989(1): 28-30.
[4] 陈焦成. 白辛树育苗技术 [J]. 陕西林业科技, 1993(3): 16.
[5] 陈进成, 付小华, 何百锁, 等. 白辛树人工繁育造林与生长研究 [J]. 陕西林业科技, 2014(5): 77-79,85.
[6] 蔡长顺. 野生白辛树生长状况研究 [J]. 林业科技开发, 2002, 16(增刊): 46-47.
[7] 杨焱冰, 陈光平, 安明态, 等. 宽阔水国家级自然保护区兰科植物多样性及分布 [J]. 现代农业科技, 2017(5): 137-140.
[8] 孙巧玲, 苟光前, 王瑶, 等. 宽阔水自然保护区蕨类植物初步研究 [J]. 山地农业生物学报, 2016, 35(5): 18-21.
[9] 张金屯. 数量生态学 [M]. 北京: 科学出版社, 2004.
[10] 贺金生, 陈伟烈, 李凌浩. 中国中亚热带东部常绿阔叶林主要类型的群落多样性特征 [J]. 植物生态学报, 1998, 22(4): 303-311.
[11] 马克平, 黄建辉, 于顺利, 等. 北京东灵山地区植物群落多样性的研究Ⅱ丰富度、 均匀度和物种多样性指数 [J]. 生态学报, 1994, 15(3): 268-277.
[12] 刘方炎, 李昆, 廖声熙, 等. 濒危植物翠柏的个体生长动态及种群结构与种内竞争 [J]. 林业科学, 2010(10): 23-28.
[13] 张文辉, 王延平, 康永祥, 等. 濒危植物太白红杉种群年龄结构及其时间序列预测分析 [J]. 生物多样性, 2004, 12(3): 361-369.
[14] 段仁燕, 王孝安, 黄敏毅, 等. 太白红杉(Larix chinensis)混交林径级结构与竞争的关系 [J]. 生态学报, 2007, 27(11): 4919-4924.
[15] 杨汉远, 冯邦贤, 袁茂琴, 等. 珍稀濒危植物小叶红豆种群格局及濒危原因分析 [J]. 种子, 2013, 32(6): 52-54.
[16] 贾鹏, 闫明, 石旭, 等. 山西霍山辽东栎群落乔木层研究——种间关系及年龄结构 [J]. 山地农业生物学报, 2009, 28(3): 208-213.