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浙江百山祖25 ha亚热带森林动态监测样地群落组成与结构特征 被引量:1
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作者 刘啸林 吴友贵 +7 位作者 张敏华 陈小荣 朱志成 陈定云 董舒 李步杭 丁炳扬 刘宇 《生物多样性》 CAS CSCD 北大核心 2024年第2期21-31,共11页
百山祖常绿林是亚热带中高海拔地区保存较好的森林类型,群落结构复杂。本研究以百山祖25 ha亚热带森林动态监测样地(简称百山祖样地)为平台,对样地内胸径(DBH)≥1 cm的所有木本植物进行调查和统计,分析了其物种组成、区系特征、径级结... 百山祖常绿林是亚热带中高海拔地区保存较好的森林类型,群落结构复杂。本研究以百山祖25 ha亚热带森林动态监测样地(简称百山祖样地)为平台,对样地内胸径(DBH)≥1 cm的所有木本植物进行调查和统计,分析了其物种组成、区系特征、径级结构和空间分布格局。结果表明:样地内DBH≥1 cm的木本植物独立个体有210,556株,分属43科85属163种。热带分布的科(20个)多于温带分布的科(17个),但在属水平上以温带性质为主(温带分布的属为47个,热带分布的属为33个)。常绿树种有90种,占总树种数的55.21%。样地内稀有种和偶见种分别占所有物种数的35.58%和25.77%。重要值≥1%的物种共有25个,分别占样地总个体数和总胸高断面积的85.84%和91.18%。重要值最大的3个物种分别是鹿角杜鹃(Rhododendron latoucheae)、黄山松(Pinus taiwanensis)和杉木(Cunninghamia lanceolata)。样地内所有个体的平均胸径为5.26 cm,整体径级分布呈倒“J”型,小径级个体较多,群落更新良好。样地内优势种在1–100 m尺度上呈聚集分布,且不同优势种表现出不同的生境偏好。本文可为后续开展亚热带中高海拔地带常绿林群落构建及生物多样性维持机制的研究提供科学基础。 展开更多
关键词 百山祖自然保护区 森林动态监测样地 植物区系组成 中高海拔常绿林 群落结构
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浙江野生种子植物的分布格局与区系分区 被引量:6
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作者 丁炳扬 金孝锋 +3 位作者 张永华 李根有 陈征海 张方钢 《生物多样性》 CAS CSCD 北大核心 2023年第4期44-57,共14页
植物的分布格局和区系分区研究可以为植物资源开发、物种引种、植物多样性保护以及农、林、牧的远景规划提供依据。本文基于最近出版的《浙江植物志(新编)》记载的相关数据,分析了浙江省野生种子植物的分布格局,探讨了植物区系的分区。... 植物的分布格局和区系分区研究可以为植物资源开发、物种引种、植物多样性保护以及农、林、牧的远景规划提供依据。本文基于最近出版的《浙江植物志(新编)》记载的相关数据,分析了浙江省野生种子植物的分布格局,探讨了植物区系的分区。结果显示:浙江省有种子植物212科1,469属4,430种(不计种下分类群),其中自然分布的野生种子植物有190科1,085属3,344种,包含中国特有属45个,中国特有种1,405个。属级水平上,广布属有548个,占野生种子植物总属数的50.5%;各区域中属数最多的是洞宫山区(851属),其次是浙东南沿海区(822属)和天目山区(818属),最少的是浙北平原区(仅有411属)。种级水平上,种数最多的是洞宫山区(2,304种),其次是天目山区和仙霞岭区(均超过2,000种),最少的是浙北平原区(仅有721种)。按照浙江种子植物分布的区域数目分为广布种(904个)、常见种(846个)、局限种(1,000个)、区域独有种(594个);常见种和局限种共计1,846种,可归纳为以下6个基本分布式样,浙北部分布(171种)、浙南部分布(280种)、浙西部分布(109种)、浙东部分布(93种)、浙西至浙东南分布(98种)、浙东北至浙西南分布(37种),其余为丘陵山地散布和间断分布。根据浙江野生种子植物属和种的分布,结合前人的区系分区研究成果,将浙江植物区系划分成2个地区(华东地区和岭南山地地区)3个亚地区(黄淮平原亚地区、浙南山地亚地区和闽北山地亚地区)5个小区(浙北平原小区、浙江中北部山地丘陵小区、浙东北沿海小区、浙江中南部山地丘陵小区、浙东南沿海小区)。 展开更多
关键词 种子植物 植物区系 分布格局 区系分区 浙江
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浙江种子植物物种编目 被引量:11
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作者 金孝锋 鲁益飞 +3 位作者 丁炳扬 李根有 陈征海 张方钢 《生物多样性》 CAS CSCD 北大核心 2022年第6期27-35,共9页
生物多样性的编目和分类以及生物多样性监测是全球生物多样性研究的两个核心内容。物种编目是了解物种多样性的基础,只有掌握物种分布格局及物种与环境的关系,才能为物种监测和科学管理提供依据。作为浙江种子植物研究的“家底”,本文... 生物多样性的编目和分类以及生物多样性监测是全球生物多样性研究的两个核心内容。物种编目是了解物种多样性的基础,只有掌握物种分布格局及物种与环境的关系,才能为物种监测和科学管理提供依据。作为浙江种子植物研究的“家底”,本文在《浙江植物志(新编)》编研的基础上,系统整理了浙江种子植物的物种名录。结果显示,浙江共有种子植物212科1,469属4,430种,其中野生植物有190科1,085属3,347种。所含种数多于100种的科有禾本科(285种)、莎草科(216种)、菊科(186种)、蔷薇科(153种)、兰科(126种)、蝶形花科(109种)和唇形科(108种);含20种以上的属有15属,包括薹草属(Carex,126种)、刚竹属(Phyllostachys,44种)、悬钩子属(Rubus,44种)、冬青属(Ilex,35种)、蓼属(Polygonum,34种)、珍珠菜属(Lysimachia,32种)、铁线莲属(Clematis,31种)、景天属(Sedum,28种)、槭属(Acer,26种)、荚蒾属(Viburnum,26种)、飘拂草属(Fimbristylis,26种)、蒿属(Artemisia,25种)、堇菜属(Viola,22种)、葡萄属(Vitis,21种)和山矾属(Symplocos,21种)。其区系特点主要反映在:物种丰富,其科属组成多样;保存了较多古老孑遗植物;地理成分多样,联系广泛,由热带向温带过渡;中国特有科2科、中国特有属45属、浙江(准)特有种近500种(含亚种和变种),珍稀濒危植物丰富,96种为国家重点保护植物;外来植物多,入侵风险大,有些种已形成明显的危害。 展开更多
关键词 种子植物 物种编目 区系 地理成分 浙江
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Impact of tree diversity and environmental conditions on the survival of shrub species in a forest biodiversity experiment in subtropical China 被引量:7
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作者 Bo Yang Ying Li +10 位作者 bingyang ding Sabine Both Alexandra Erfmeier Werner Härdtle Keping Ma Bernhard Schmid Thomas Scholten Gunnar Seidler Goddert von Oheimb Xuefei Yang Helge Bruelheide 《Journal of Plant Ecology》 SCIE CSCD 2017年第1期179-189,共11页
Aims Although shrubs are an important component of forests,their role has not yet been considered in forest biodiversity experiments.In the biodiversity-ecosystem functioning(BEF)experiment with subtropical tree speci... Aims Although shrubs are an important component of forests,their role has not yet been considered in forest biodiversity experiments.In the biodiversity-ecosystem functioning(BEF)experiment with subtropical tree species in south-east China(BEF-China),we factorially combined tree with shrub species-diversity treatments.Here,we tested the hypotheses that shrub survival differs between the 10 planted shrub species,with lower survival rates of late-than early-successional species and is affected by environmental conditions,such as topography and top soil characteristics,as well as by biotic factors,represented by tree,shrub and herb layer characteristics.Methods We analyzed the survival of 42000 shrub individuals in 105 plots varying in tree and shrub species richness of the BEF-China project four years after planting.Shrub survival was analyzed with generalized linear mixed effects models at the level of individuals and with variance partitioning at the plot level.Random intercept and random slope models of different explanatory variables were compared with respect to the Bayesian Information Criterion(BIC).Important Findings Survival rates differed largely between the 10 shrub species,ranging from 26%to 91%for Ardisia crenata and Distylium buxifolium,respectively.Irrespective of species identity,single abiotic factors explained up to 5%of species survival,with a negative effect of altitude and slope inclination and a positive effect of the topsoil carbon to nitrogen ratio,which pointed to drought as the major cause of shrub mortality.In contrast,neither tree nor shrub richness affected shrub survival at this early stage of the experiment.Among the biotic predictors,only herb layer species richness and cover of the dominant fern species(Dicranopteris pedata)affected shrub survival.Overall,our models that included all variables could explain about 65%in shrub survival,with environmental variables being most influential,followed by shrub species identity,while tree species diversity(species richness and identity)and herb layer characteristics contributed much less.Thus,in this early stage of the experiment the biotic interactions among shrubs and between shrubs and trees have not yet overruled the impact of abiotic environmental factors. 展开更多
关键词 BEF-China biodiversity-ecosystem functioning experiment forest herb layer plant survival shrub species richness
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Distribution patterns of tree species in an evergreen broadleaved forest in eastern China 被引量:1
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作者 Zhengrong LUO bingyang ding +2 位作者 Xiangcheng MI Jiuhua YU Yougui WU 《Frontiers in Biology》 CSCD 2009年第4期531-538,共8页
Ecological assembly rules in evergreen broad-leaved forest are far from clear understanding.Spatial dispersion of individuals in a species is central in ecological theory.We analyzed the spatial patterns as well as as... Ecological assembly rules in evergreen broad-leaved forest are far from clear understanding.Spatial dispersion of individuals in a species is central in ecological theory.We analyzed the spatial patterns as well as associations between adult and juvenile of each tree species in a 5-ha subtropical evergreen broad-leaved forest plot in eastern China.Out of the 74 species occurring with more than 10 individuals,88.4%of these species are aggregated.Most of them are aggregated from small to large scales.Spatial distributions of some species corre-spond with topography.Many bad dispersed species in the Baishanzu exhibit a highly aggregated distribution at small scales.These suggest that environmental heterogeneity and/or dispersal limitation may be the most important mechanisms that control the distribution patterns of these species.Our observations of the aggregations of abundant species basically support the hypothesis that dispersal limitation decreases as the number of reproductive trees increases.The rest species are randomly distributed,with less than 10 individuals.For most common species,spatial aggregation is weaker in larger diameter classes,and the distance between adults is larger than that between juveniles and adults,suggesting that density-dependence works on loosing aggregation and excluding conspecific juveniles away from adult trees.However,the density-dependent effect is not strong enough to eliminate all seedlings near adult trees and to result in a regular distribution of trees;thus the density dependence is usually masked by the refuge effect. 展开更多
关键词 subtropical evergreen forest spatial pattern spatial association K function species coexistence
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