2015Chinese Journal of Plant EcologyOpen access

Quantitative classification of the subtropical evergreen-deciduous broadleaved mixed forest and the deciduous and evergreen species composition structure across two national nature reserves in the southwest of Hubei, China

HUANG Yong-Tao, 3Xingdoushan National Nature Reserve, Enshi, Hubei 445000, China;, Lan Yao, Xunru Ai, LU Shi-an, and DING Yi

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Abstract

摘 要 为深入研究亚热带常绿落叶阔叶混交林的生物多样性维持机制, 合理保护与利用此类森林植被, 以鄂西南两个自然 保护区--星斗山和木林子典型的亚热带常绿落叶阔叶混交林为研究对象, 在野外样方调查的基础上进行了群落数量分类 和排序, 分析了常绿和落叶物种比例随群落类型及环境因子变化的规律。研究结果表明: (1)将鄂西南两个自然保护区的亚热 带常绿落叶阔叶混交林划分为5个群落类型: 即青冈-翅柃+尖连蕊茶(Cyclobalanopsis glauca-Eurya alata + Camellia cuspidata) 群落(I)、川陕鹅耳枥+青冈-翅柃(Carpinus fargesiana + Cyclobalanopsis glauca-Eurya alata)群落(II)、川陕鹅耳枥+青冈-水马桑 (Carpinus fargesiana + Cyclobalanopsis glauca-Weigela japonica)群落(III)、光叶水青冈+多脉青冈-翅柃(Fagus lucida + Cyclobalanopsis multinervis-Eurya alata)群落(IV)和川陕鹅耳枥+交让木+包果柯-翅柃(Carpinus fargesiana + Daphniphyllum macropodum + Lithocarpus cleistocarpus-Eurya alata)群落(V); (2)常绿和落叶物种的丰富度、多度、胸高断面积及重要值等指 标随群落类型而变化。在群落II、III和V中落叶物种占优势, 而在群落I和IV中二者无显著差异; (3)各类型群落在小径级(1-5 cm)内落叶物种的丰富度大于常绿物种, 但多度、胸高断面积和重要值大都小于常绿物种。在中径级(5-10 cm)内, 群落I和群 落IV的各项指标都表现为常绿物种大于落叶物种, 而群落II、群落III和群落V的则相反。在大径级(≥ 10 cm)内, 各群落类型 的落叶物种都占显著优势, 其各项指标大于常绿物种; (4)海拔、坡度、坡向、土壤氮含量和土壤磷含量是影响各群落类型内

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摘 要 为深入研究亚热带常绿落叶阔叶混交林的生物多样性维持机制, 合理保护与利用此类森林植被, 以鄂西南两个自然 保护区--星斗山和木林子典型的亚热带常绿落叶阔叶混交林为研究对象, 在野外样方调查的基础上进行了群落数量分类 和排序, 分析了常绿和落叶物种比例随群落类型及环境因子变化的规律。研究结果表明: (1)将鄂西南两个自然保护区的亚热 带常绿落叶阔叶混交林划分为5个群落类型: 即青冈-翅柃+尖连蕊茶(Cyclobalanopsis glauca-Eurya alata + Camellia cuspidata) 群落(I)、川陕鹅耳枥+青冈-翅柃(Carpinus fargesiana + Cyclobalanopsis glauca-Eurya alata)群落(II)、川陕鹅耳枥+青冈-水马桑 (Carpinus fargesiana + Cyclobalanopsis glauca-Weigela japonica)群落(III)、光叶水青冈+多脉青冈-翅柃(Fagus lucida + Cyclobalanopsis multinervis-Eurya alata)群落(IV)和川陕鹅耳枥+交让木+包果柯-翅柃(Carpinus fargesiana + Daphniphyllum macropodum + Lithocarpus cleistocarpus-Eurya alata)群落(V); (2)常绿和落叶物种的丰富度、多度、胸高断面积及重要值等指 标随群落类型而变化。在群落II、III和V中落叶物种占优势, 而在群落I和IV中二者无显著差异; (3)各类型群落在小径级(1-5 cm)内落叶物种的丰富度大于常绿物种, 但多度、胸高断面积和重要值大都小于常绿物种。在中径级(5-10 cm)内, 群落I和群 落IV的各项指标都表现为常绿物种大于落叶物种, 而群落II、群落III和群落V的则相反。在大径级(≥ 10 cm)内, 各群落类型 的落叶物种都占显著优势, 其各项指标大于常绿物种; (4)海拔、坡度、坡向、土壤氮含量和土壤磷含量是影响各群落类型内

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Available abstract

摘 要 为深入研究亚热带常绿落叶阔叶混交林的生物多样性维持机制, 合理保护与利用此类森林植被, 以鄂西南两个自然 保护区--星斗山和木林子典型的亚热带常绿落叶阔叶混交林为研究对象, 在野外样方调查的基础上进行了群落数量分类 和排序, 分析了常绿和落叶物种比例随群落类型及环境因子变化的规律。研究结果表明: (1)将鄂西南两个自然保护区的亚热 带常绿落叶阔叶混交林划分为5个群落类型: 即青冈-翅柃+尖连蕊茶(Cyclobalanopsis glauca-Eurya alata + Camellia cuspidata) 群落(I)、川陕鹅耳枥+青冈-翅柃(Carpinus fargesiana + Cyclobalanopsis glauca-Eurya alata)群落(II)、川陕鹅耳枥+青冈-水马桑 (Carpinus fargesiana + Cyclobalanopsis glauca-Weigela japonica)群落(III)、光叶水青冈+多脉青冈-翅柃(Fagus lucida + Cyclobalanopsis multinervis-Eurya alata)群落(IV)和川陕鹅耳枥+交让木+包果柯-翅柃(Carpinus fargesiana + Daphniphyllum macropodum + Lithocarpus cleistocarpus-Eurya alata)群落(V); (2)常绿和落叶物种的丰富度、多度、胸高断面积及重要值等指 标随群落类型而变化。在群落II、III和V中落叶物种占优势, 而在群落I和IV中二者无显著差异; (3)各类型群落在小径级(1-5 cm)内落叶物种的丰富度大于常绿物种, 但多度、胸高断面积和重要值大都小于常绿物种。在中径级(5-10 cm)内, 群落I和群 落IV的各项指标都表现为常绿物种大于落叶物种, 而群落II、群落III和群落V的则相反。在大径级(≥ 10 cm)内, 各群落类型 的落叶物种都占显著优势, 其各项指标大于常绿物种; (4)海拔、坡度、坡向、土壤氮含量和土壤磷含量是影响各群落类型内

Key concepts: Evergreen, Deciduous, Subtropics, Tropical and subtropical moist broadleaf forests, China, Geography, Evergreen forest, Ecology

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Quantitative classification of the subtropical evergreen-deciduous broadleaved mixed forest and the deciduous and evergreen species composition structure across two national nature reserves in the southwest of Hubei, China — Research Paper | ScholarLens