斯洛伐克Belianske Tatra山高寒植被覆盖与地貌过程的关系

IF 0.7 Q3 GEOGRAPHY
GeoScape Pub Date : 2023-06-01 DOI:10.2478/geosc-2023-0006
M. Boltižiar
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引用次数: 0

摘要

摘要高山地貌过程是植被发育的重要制约因素。然而,基于长期野外监测的研究仍然很少,从而限制了我们对植被动态的理解和有效保护管理所需的知识。在本文中,我们解释了长达20年的观测结果,考虑到在Belianske Tatra山(斯洛伐克,中欧)的七个永久样地境内的高山植被与地貌过程强度之间的关系。原则上,这些遗址代表了正在进行的地貌过程和植被的“战场”。它们要么被植被生态演替的初始阶段逐渐占据,要么在过去被植被或多或少地破坏。实地调研与标准植物社会学相关资料的收集相结合。详细绘制了各田中特定群群或个体的空间分布。我们观察了与未覆盖底物的对照点相关的物种份额及其空间分布。特别注意使用各种方法测量地貌过程的强度,每年进行三次。使用CANOCO软件对植物社会学相关数据进行定量评价。利用主成分间接梯度分析(PCA)揭示植被和立地的变异,利用直接梯度分析(RDA)解释物种多样性和生境特征,评价了影响极端高山环境的地貌过程是决定植被空间分布、特定物种或森林破碎化总体性质的最关键因素。因此,地形起伏及其主要的空间地貌属性是景观的相关现象,使科学家能够理解,例如植被排列的规模和层次。植被与地貌过程强度的关系只能在长期研究的基础上加以考虑和概括。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The relation of alpine vegetation cover and geomorphic processes in the Belianske Tatra Mts. (Slovakia)
Abstract The geomorphic processes in high-mountain environments are crucial and often limiting factors of vegetation development. Studies based on the long-term field monitoring are still scarce, however, thus limiting our understandng to vegetation dynamics and the knowledge needed for effective conservation management. In this paper we interpret results of a 20 years long observation considering the relationship between alpine vegetation and intensity of geomorphic processes in the territory of seven permanent plots in the Belianske Tatra Mts. (Slovakia, Central Europe). In principle, these sites represent a “battle field” for ongoing geomorphic processes and vegetation. They are either gradually occupied by initial stages of ecological succession of vegetation or were occupied in the past with the vegetation being more or less destructed. The field research was combined with data collection for standard phytosociological relèves. Spatial distribution of particular tussocks or individuals on each field was drawn in detail. We observed the share of species and their spatial arrangement in relation to the control sites with uncovered substrate. Special attention was paid to measuring the intensity of geomorphic processes using various methods and carried out three times a year. The CANOCO software was used for quantitative evaluation of the phytosociological relèves data. We applied indirect gradient analysis of principal components (PCA) to find out the variability of vegetation and sites, and the direct gradient analysis (RDA) to explain the diversity of species ad the habitat characteristicsThe geomorphic processes affecting the extreme high-mountain environment were evaluated as the most crucial elements that determine the spatial distribution of vegetation, its particular species or overall nature of coppice fragmentation. The relief and mainly its spatial geomorphic attributes are therefore relevant phenomena of landscape that enable scientists to understand, for example the scale and hierarchy of vegetation arrangement. The relationship of vegetation and the intensity of geomorphic processes can be only considered and generalized on the basis of longtermed research.
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来源期刊
GeoScape
GeoScape GEOGRAPHY-
CiteScore
2.70
自引率
7.70%
发文量
7
审稿时长
4 weeks
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