秘鲁安第斯山脉高海拔地区Escallonia myrtiloides的树木年代学潜力评估

IF 1.1 4区农林科学 Q3 FORESTRY

Tree-Ring Research Pub Date : 2021-07-20 DOI:10.3959/TRR2019-8

Edilson Jimmy Requena-Rojas, M. Amoroso, G. Ticse-Otarola, Doris B. Crispin‐DelaCruz

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引用次数: 5

摘要

摘要秘鲁安第斯山脉中部的普纳地区存在一个显著的树木年代差距，这激发了对新物种的研究。在这项研究中，我们提出了Escallonia myrtiloides的第一个树木年轮年表。我们在秘鲁的San Pedro Saño和Sapallaga采集了样本，分析了界定年轮的解剖特征，并通过传统的树木年代技术开发了两个年轮年表。圣佩德罗·萨尼奥的年轮年表涵盖1940年至2015年（76年），萨帕兰加的年轮年图涵盖1960年至2015年间（56年）。在E.myrtiloides年表中，平均灵敏度、Rbar和EPS的值与Puna地区的Polylepis tarapacana、Polylepiss pepei和Polylepips rugulosa的记录值相似。对气候增长关系的分析表明，在当前生长季节的特定月份（十月至四月），与降水呈正相关，与温度负相关。这一对降水/温度敏感的记录突出了杨梅对未来研究气候对安第斯山脉中部树木生长的影响的高价值。

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Assessing Dendrochronological Potential of Escallonia myrtilloides in the High Andes of Peru

ABSTRACT There is a significant dendrochronological gap in the Puna of the central Andes of Peru, which motivates research on new species. In this study, we present the first tree-ring chronologies of Escallonia myrtilloides. We collected samples at San Pedro Saño and Sapallanga in Peru, analyzed the anatomical characteristics that delimit the annual growth rings, and developed two tree-ring chronologies through conventional dendrochronological techniques. The tree-ring chronologies cover the period 1940–2015 (76 years) for San Pedro Saño and 1960–2015 (56 years) for Sapallanga. The E. myrtilloides chronologies presented similar values of mean sensitivity, Rbar and EPS to those recorded for Polylepis tarapacana, Polylepis pepei, and Polylepis rugulosa in the Puna region. The analysis of the climate-growth relationships indicated positive correlations with precipitation and negative correlations with temperature in particular months of the current growing season (October–April). This precipitation/temperature-sensitive record highlights the high value of E. myrtilloides for future studies on the influence of climate on tree growth in the central Andes.

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来源期刊

Tree-Ring Research 农林科学-林学

CiteScore

2.40

自引率

12.50%

发文量

审稿时长

>36 weeks

期刊介绍： Tree-Ring Research (TRR) is devoted to papers dealing with the growth rings of trees and the applications of tree-ring research in a wide variety of fields, including but not limited to archaeology, geology, ecology, hydrology, climatology, forestry, and botany. Papers involving research results, new techniques of data acquisition or analysis, and regional or subject-oriented reviews or syntheses are considered for publication. Scientific papers usually fall into two main categories. Articles should not exceed 5000 words, or approximately 20 double-spaced typewritten pages, including tables, references, and an abstract of 200 words or fewer. All manuscripts submitted as Articles are reviewed by at least two referees. Research Reports, which are usually reviewed by at least one outside referee, should not exceed 1500 words or include more than two figures. Research Reports address technical developments, describe well-documented but preliminary research results, or present findings for which the Article format is not appropriate. Book or monograph Reviews of 500 words or less are also considered. Other categories of papers are occasionally published. All papers are published only in English. Abstracts of the Articles or Reports may be printed in other languages if supplied by the author(s) with English translations.