Does Season Matter for Moss Surface Sample Collection? A Case Study from Kungur Forest-Steppe, Pre-Urals, Russia
Does Season Matter for Moss Surface Sample Collection? A Case Study from Kungur Forest-Steppe, Pre-Urals, Russia
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季节对苔藓表面样本采集有影响吗？
DOI：
10.1080/01916122.2020.1776780
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发表时间：
2020
期刊：
影响因子：
1.5
通讯作者：
Efimik E.
中科院分区：
文献类型：
--
作者：
Shumilovskikh L.S;Abdulmanova I;Efimik E.
方法学论文建议在开花季节开始或结束时收集苔藓表面样本。实际上，这种收集通常发生在开花季节，目的是为了描述植被，或者因为偏远研究地区的可达性。本文考察了苔面取样季节对花粉谱的影响。于7月和9月在俄罗斯彼尔姆地区自然保护区Spasskaya Gora不同生境的同一地点采集了10份苔藓/凋落物样本。结果表明，花粉组合较好地反映了目前松桦林和草地的优势植被，并显示了开放地区和森林地区以及废弃草甸和半天然草甸在使用中的差异。配对检验和Wilcoxon检验表明，不同季节间优势花粉类群（apinus diploxylon-type）、桦木科（Betulaand Poaceae）和稀有花粉类群数量差异不显著，而蒿属（artemisia）的花粉类群在9月份显著较高。9月份花粉浓度的显著下降说明了降水冲刷花粉的重要性。主成分分析结果表明，不同季节花粉谱具有相似性。因此，地表取样季节对花粉组合的影响不显著，适宜在夏季花期进行实地研究。然而，我们强烈建议收集大量的基部苔藓和/或有表层土壤的凋落物样本，以确保代表前几年的平均花粉信号，并稀释花粉沉积的局部极端值。
Methodological papers advise to collect moss surface samples either at the beginning or at the end of the flowering season. In reality, such collections occur often within the flowering season for purposes of vegetation description or because of accessibility of remote study areas. Here we test whether the season of moss surface sample collection has an influence on pollen spectra. Ten moss/litter samples were collected in different habitats of the natural reserve ‘Spasskaya Gora’ (Perm region, Russia) in July and September from the same locations exactly. The results show that pollen assemblages reflect well the present dominant vegetation ofPinus-Betula-forests and grasslands and demonstrate differences between open and forested areas as well as between abandoned fodder meadows and semi-natural hay meadows in use. Pairedt-tests and Wilcoxon tests demonstrate that the dominant pollen taxaPinus diploxylon-type,Betulaand Poaceae as well as the rarefied number of pollen taxa do not differ significantly between seasons, while values ofArtemisiaare significantly higher in September. A significant decrease in pollen concentration in September indicates the importance of washing-out of pollen by precipitation. PCA results demonstrate the similarity of the pollen spectra between the seasons. Based on our results, we conclude that the season of surface sample collection does not significantly influence the pollen assemblages and appropriate field studies can be carried out in summer during the flowering season. However, we strongly recommend to collect bulk samples of mosses with basal parts and/or litter with surface soils in order to ensure representation of the average pollen signal for the previous years and to dilute local extremes in the pollen deposition.
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DOI：
10.1080/03746606708685162
发表时间：
1967
期刊：
Botanical Journal of Scotland
影响因子：
--
作者：
R. Watling
通讯作者：
R. Watling
法医孢粉学：鞋子上土壤花粉含量和土壤中鞋印的变化
影响因子：
1.6
作者：
M. Horrocks;S. Coulson;K. Walsh
通讯作者：
K. Walsh
法医孢粉学：为什么这样做以及它是如何工作的。
影响因子：
2.2
作者：
D. Mildenhall;P. Wiltshire;V. Bryant
通讯作者：
V. Bryant
影响因子：
1.9
作者：
Pidek IA;Svitavská-Svobodová H;van der Knaap WO;Magyari E
通讯作者：
Magyari E
罗兹托切地区（波兰东南部）冷杉、水青冈和樟子松的花粉扩散和沉积特征
影响因子：
2.5
作者：
A. Poska;I. Pidek
通讯作者：
I. Pidek