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首页> 外文期刊>IAWA Journal >Dendrochronological analysis and growth patterns of Polylepis reticulata (Rosaceae) in the Ecuadorian Andes
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Dendrochronological analysis and growth patterns of Polylepis reticulata (Rosaceae) in the Ecuadorian Andes

机译：厄瓜多尔和果实番茄酱（蔷薇科）的分析和生长模式

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摘要

Relict tree species in the Andean mountains are important sources of information about climate variability and climate change. This study deals with dendroclimatology and growth patterns in Polylepis reticulata Hieron., growing at high elevation (mean of 4000 m a. s.l.) in three sites of the Ecuadorian Andes. The aims of the research were: (i) characterizing tree-ring boundaries; (ii) describing tree-ring patterns of the study sites; (iii) investigating the relationships between climate and radial tree growth; and (iv) determining the spatial correlation between seasonal climatic factors and tree-ring width of P. reticulata. Tree rings were characterized by semi-ring porosity and slight differences in fibre wall thickness between latewood and subsequent earlywood. In all sampling sites, tree rings in heartwood were more clearly visible than in sapwood. Tree-ring width was more related to temperature than to precipitation, with growth being also affected by site conditions and stand structure, as well as other local factors. No significant relationships were found between tree-ring chronologies of P. reticulata and El Nino-Southern Oscillation (ENSO) and Vapour Pressure Deficit indices. The study highlights that there is not a clear driving climate factor for radial growth of P. reticulata. Additional research is needed to study growth dynamics of this species and the impacts of local environmental variables.
机译：Andirt山区的relict树种是有关气候变异性和气候变化的重要信息来源。本研究涉及番茄素蝉的树突状直叶和生长模式。，在厄瓜多尔和厄瓜多尔州的三个地点，高海拔（平均值为4000米A.L.）。研究的目的是：（i）表征树木边界; （ii）描述研究站点的树木模式; （iii）调查气候与径向树的关系; （iv）确定季节性气候因子与树木环宽度的空间相关性。树圈的特征在于，半环孔隙率和胶水壁厚度略微差异，胶水壁厚度和随后的早期服装。在所有的抽样网站中，心材的树圈比在Sapwood中更清晰地看到。树木宽度与温度更相关，而不是降水，增长也受到现场条件和站立结构的影响，以及其他局部因素。 P. TeariCulata和El Nino-Southern振荡（ENSO）和蒸气压赤字指数没有在树圈年表之间发现显着的关系。该研究突出显示P. Reticulata的径向生长没有明显的驾驶气候因素。需要进行额外的研究来研究该物种的生长动态以及当地环境变量的影响。

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  • 来源
    《IAWA Journal》 |2019年第2期|共26页
  • 作者

    Alvites C.; Battipaglia G.; Santopuoli G.; Hampel H.; Vazquez R. F.; Matteucci G.; Tognetti R.;

  • 作者单位

    Univ Molise Dipartimento Biosci &

    Terr Cda Fonte Lappone Snc I-86090 Pesche IS Italy;

    Univ Campania Luigi Vanvitell Dipartimento Sci &

    Tecnol Ambientali Biol &

    Farma Via Vivaldi 43 I-81100 Caserta Italy;

    Univ Molise Dipartimento Biosci &

    Terr Cda Fonte Lappone Snc I-86090 Pesche IS Italy;

    Univ Cuenca Fac Ciencias Quim Av 12 Abril S-N Cuenca 010203 Ecuador;

    Univ Cuenca Dept Recursos Hidr &

    Ciencias Ambientales Lab Ecol Acuat Av 12 Abril S-N Cuenca 010203 Ecuador;

    Natl Res Council Italy Inst Agr &

    Forestry Syst Mediterranean CNR Via Patacca 85 I-80056 Ercolano NA Italy;

    Univ Molise Dipartimento Agr Ambiente &

    Alimenti Via Sanctis Snc I-86100 Campobasso Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 林业;
  • 关键词

    Climate change; mountain forests; relict species; tree rings; dendroclimatology;

    机译：气候变化;山林森林;依赖物种;树圈;树突状;

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