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Edge Effect: Growth and Morphogenetic Features of Scots Pine Trees in Forest Parks and Natural Stands
Russian Journal of Ecology ( IF 1.0 ) Pub Date : 2020-05-01 , DOI: 10.1134/s1067413620030145
S. A. Shavnin , D. Yu. Golikov , A. A. Montile , A. I. Montile

The degree of development and depth of edge effect are studied in some fragments of forest-park stands under long-term urbanization impact (in the city of Yekaterinburg, Russia) and in natural forests using the method of transect investigation. The method of quantitative assessment of tree stem and crown growth features by a set of morphological characteristics was used. The objects of the research included the edges of Scots pine stands. The edge effect was determined by two of the five studied characteristics: foliation and branchiness, which characterize the level of the development of the tree assimilation apparatus. The general trends indicate an increase in the development of these characters in natural stands and decrease in the forest park at increased distance from the edge. The nonlinear development of morphological characteristics along the transects is due to different types of tree responses on the impact of determining morphogenesis factors. Four statistically significant different zones were identified in the natural stands at distances of 0–75, 100–125, 150–175, and 200–225 m from the forest edge and only two zones were differentiated in the forest park. The unified approach to data analysis suggests the edge effect in both habitats at a distance of 75–100 m from the forest edge according to branchiness and 100–125 m according to foliation. Several types of morphogenetic tree responses, distinguished by the degree of foliation and branchiness variation under edge effect impact, are revealed.

中文翻译:

边缘效应:森林公园和自然林分中苏格兰松树的生长和形态发生特征

在长期城市化影响下(俄罗斯叶卡捷琳堡市)的部分森林公园林分和天然林中,采用横断面调查的方法研究了边缘效应的发展程度和深度。使用通过一组形态特征对树干和树冠生长特征进行定量评估的方法。研究对象包括苏格兰松林的边缘。边缘效应由五个研究特征中的两个决定:叶理和枝条,它们表征了树木同化装置的发展水平。总体趋势表明,这些特征在自然林分中的发展增加,而在距离边缘增加的森林公园中则减少。沿横断面形态特征的非线性发展是由于不同类型的树木响应对确定形态发生因素的影响。在距离森林边缘 0-75、100-125、150-175 和 200-225 m 的天然林分中确定了四个具有统计显着性的不同区域,并且在森林公园中仅区分了两个区域。数据分析的统一方法表明,在距离森林边缘 75-100 m 处(根据枝叶)和 100-125 m 处(根据叶理)的两个栖息地的边缘效应。揭示了几种类型的形态发生树响应,以边缘效应影响下的叶理和枝条变化程度为特征。在距离森林边缘 0-75、100-125、150-175 和 200-225 m 的天然林分中确定了四个具有统计显着性的不同区域,并且在森林公园中仅区分了两个区域。数据分析的统一方法表明,在距离森林边缘 75-100 m 处(根据枝叶)和 100-125 m 处(根据叶理)的两个栖息地的边缘效应。揭示了几种类型的形态发生树响应,以边缘效应影响下的叶理和枝条变化程度为特征。在距离森林边缘 0-75、100-125、150-175 和 200-225 m 的天然林分中确定了四个具有统计显着性的不同区域,并且在森林公园中仅区分了两个区域。数据分析的统一方法表明,在距离森林边缘 75-100 m 处(根据枝叶)和 100-125 m 处(根据叶理)的两个栖息地的边缘效应。揭示了几种类型的形态发生树响应,以边缘效应影响下的叶理和枝条变化程度为特征。数据分析的统一方法表明,在距离森林边缘 75-100 m 处(根据枝叶)和 100-125 m 处(根据叶理)的两个栖息地的边缘效应。揭示了几种类型的形态发生树响应,以边缘效应影响下的叶理和枝条变化程度为特征。数据分析的统一方法表明,在距离森林边缘 75-100 m 处(根据枝叶分布)和 100-125 m 处(根据叶理)的两个栖息地的边缘效应。揭示了几种类型的形态发生树响应,以边缘效应影响下的叶理和枝条变化程度为特征。
更新日期:2020-05-01
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