浙江铜铃山国家森林公园次生常绿阔叶林和针阔混交林乔木群落特征研究期刊目录植物资源与环境学报

对浙江铜铃山国家森林公园次生常绿阔叶林和针阔混交林乔木群落的物种组成、径级结构、优势种种群存活曲线及稳定性进行了调查和研究。结果表明:次生常绿阔叶林乔木层包含31科51属84种,针阔混交林乔木层包含26科48属76种;2个林型的优势种明显,次生常绿阔叶林重要值排名前5的物种为木荷(Schima superba Gardn. et Champ.)、甜槠〔Castanopsis eyrei (Champ.) Tutch.〕、短尾柯〔Lithocarpus brevicaudatus (Skan) Hayata〕、马银花〔Rhododendron ovatum (Lindl.) Planch. ex Maxim.〕和尖连蕊茶〔Camellia cuspidata (Kochs) Wright ex Gard.〕,针阔混交林重要值排名前5的物种为杉木〔Cunninghamia lanceolata (Lamb.) Hook.〕、木荷、马尾松(Pinus massoniana Lamb.)、黄山松(Pinus taiwanensis Hayata)和柳杉(Cryptomeria fortunei Hooibrenk ex Otto et Dietr.)。次生常绿阔叶林乔木层中木荷、甜槠和短尾柯种群径级分布均呈倒“J”型,存活曲线均为直线型,属于稳定型种群;红楠(Machilus thunbergii Sieb. et Zucc.)种群径级分布接近“L”型,存活曲线为“凹”型,属增长型种群。针阔混交林乔木层中杉木种群径级分布呈“L”型,存活曲线为“凹”型,属于增长型种群;木荷种群径级分布呈倒“J”型,存活曲线为直线型,属于稳定型种群;黄山松和马尾松种群径级分布接近正态分布,存活曲线均呈“凸”型,属于衰退型种群。M-Godron群落稳定性分析结果表明:铜铃山国家森林公园2种林型均处于不稳定状态。CCA分析结果显示:海拔是影响这2个林型的主要环境因子。综合研究结果显示:铜铃山国家森林公园次生常绿阔叶林和针阔混交林处于相对稳定的演替中期,未达到稳定的顶极群落状态。

Species composition, diameter class structure, survival curve of populations of dominant species, and stability of arbor community of secondary evergreen broadleaved forest and coniferous and broadleaved mixed forest in Tonglingshan National Forest Park of Zhejiang Province were surveyed and studied. The results show that there are 84 species in 51 genera belonging to 31 families in arbor layer of secondary evergreen broadleaved forest, and 76 species in 48 genera belonging to 26 families in arbor layer of coniferous and broadleaved mixed forest. The dominant species of two forest types were obvious. Top five species based on important value in secondary evergreen broadleaved forest are Schima superba Gardn. et Champ., Castanopsis eyrei (Champ.) Tutch., Lithocarpus brevicaudatus (Skan) Hayata, Rhododendron ovatum (Lindl.) Planch. ex Maxim., and Camellia cuspidata (Kochs) Wright ex Gard., and those in coniferous and broadleaved mixed forest are Cunninghamia lanceolata (Lamb.) Hook., S. superba, Pinus massoniana Lamb., Pinus taiwanensis Hayata, and Cryptomeria fortunei Hooibrenk ex Otto et Dietr. Diameter class distributions of S. superba, C. eyrei, and L. brevicaudatus populations in arbor layer of secondary evergreen broadleaved forest exhibit inverted J-shape, and their survival curves are linear type, which belong to stable type; that of Machilus thunbergii Sieb. et Zucc. population is close to L-shape, and its survival curve is concave type, which belongs to increasing type. Diameter class distribution of C. lanceolata population in arbor layer of coniferous and broadleaved mixed forest shows L-shape, and its survival curve is concave type, which belongs to increasing type; that of S. superba population shows inverted Jshape, and its survival curve is linear type, which belongs to stable type; those of P. taiwanensis and P. massoniana populations are close to normal distribution, and their survival curves are convex type, which belong to declining type. The result of M-Godron analysis on community stability shows that the two forest types in Tonglingshan National Forest Park are in unstable state. The result of CCA analysis shows that elevation is the main environmental factor affecting the two forest types. The comprehensive research result shows that secondary evergreen broadleaved forest and coniferous and broadleaved mixed forest in Tonglingshan National Forest Park are in relatively stable medium succession stage, and have not reached stable top community state.

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2.人工针阔混交林,mixedplantationofconiferousandbroadleaf通过对皆伐作业前后杉阔混交人工林林地植被变化的调查分析,结果表明:皆伐后一部分植物消失(衰退种)、一部分植物增加(侵入种),但优势植物基本保留下来(保留种),这主要是由于迹地清理方式采用带堆法的缘故。3) coniferous and broadleaved mixed forest 针阔混交林 1. Characteristics of radiation flux of coniferousjvzq<84fkezbnu3eqo5jpmz138803?692;8FE
3.2023年山东高考地理真题选择题变式题常绿针叶林 2688.0 4.1 0.1359 2515.3 3.9 0.1207 落叶针叶林 3451.8 5.2 0.2420 3171.3 4.9 0.2212 阔叶林 291.1 1.0 0.0018 259.3 0.9 0.0015 针阔混交林 794.2 2.0 0.0021 752.2 1.9 0.00181.该林区落叶针叶林林火强度最大的主要原因是( ) A.植被油脂含量高 B.树冠层高大 C.枯枝落叶较多 D.降水强度小2.jvzquC41|wpvcw3zmy4dqv4vjgsbvrhnkuz03Auv5:65e}6342?o59<8564ivvq
4.自然灾害防治措施模板(10篇)从调查情况来看,混交林抗雨雪冰冻灾害能力强,而人工纯林易受雨雪冰冻灾害,特别是针叶纯林,很容易遭受雨雪冰冻灾害,落叶常绿阔叶混交林和针阔混交、竹阔混交林则抗灾能力很强。 森林经营状况好,经营水平高,林分质量高的健康林分抗冰雪灾害;而经营不好,林分质量差的林分,无论是人工林还是天然林,由于林分密度过大,林jvzquC41yy}/jjthcdobq7hqo1nbq€jp169:4>3jvor
5.基于IBIS模型的1960长白山 CBS 温带针阔混交林 42.40 128.47 1.53 2003 0.81 1.50 2004 0.81 1.33 2005 0.81 千烟洲 QYZ 亚热带常绿针叶林 26.73 115.05 1.61 2003 1.24 1.87 2004 1.40 1.66 2005 1.32 鼎湖山 DHS 亚热带常绿阔叶林 23.17 112.53 1.53 2003 2.15 1.51 2004 2.01 1.40 2005 1.91 西双版纳 XSBN 热带jvzquC41yy}/gltnqiodc7hp1uzyd8hj1jznn872385258xvzd813=624881;;3jvo
6.【环资学院】浙江农林大学“天目山针阔混交林空间结构与更新调查教学名师汤孟平教授向本次参加调查实践的成员详细介绍了本次调查方案和重要意义,他指出亚热带针阔混交林是向亚热带常绿阔叶林过渡的森林类型,天目山国家级自然保护区内分布着大大小小的针阔混交林,对天目山国家级自然保护区的针阔混交林样地进行空间结构与更新调查能够更好掌握树种的演变规律,为森林的可持续经营提供jvzquC41vy4{coz0gf{/ew4kphu03:8719?887mvo
7.浙江省仙居县公益林生物量动态分析通过两阶抽样法对浙江省仙居县4 87万hm 2公益林区域内,111个生态公益林样地的常绿阔叶林、针阔混交林、松木林和杉木林、毛竹林、灌木林等6种主要林型的生物量动态变化及其分布进行了调查和分析。结果表明:仙居县杉木林群落生物量最高,平均为99 75 t/hm 2;针阔混交林次之,群落生物量平均为96 13 t/hm 2jvzq<84pnf~c0wohw0kew7hp1ET0ckxvtciu1jguvtgdv<=790yivvq