Assessment of the impact of clear-cutting on groundwater regime in swampy habitats

IF 0.7 4区农林科学 Q3 FORESTRY

Baltic Forestry Pub Date : 2020-12-21 DOI:10.46490/BF151

R. Stasik, M. Sojka, M. Korytowski

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Abstract

The aim of the study was evaluation of clear-cutting effect on water regime in a tree harvesting area. The results were made based on the study carried out in the Rakowski Ditch catchment, in Wielkopolska lowland in Poland. It was found that a more useful method to establish the effects of clear-cutting is to compare the groundwater level (GWL) in the post-clear-cutting area with that in a control area than to analyse the GWL changes in the same area before and after the clear-cutting. Regression analysis is a particularly useful tool in groundwater regime analyses. The results obtained in this study indicated that the groundwater regime changes in the post-clear-cutting area that were manifested as an increase in the mean GWL. The major changes in the groundwater regime after clear-cutting were observed in the minimum levels, while the lowest changes took place in the maximum GWL. The variation in GWL was higher in the period after clear-cutting than in the period before it. The analysis of linear regression of GWL in the well located in the clear-cutting area and that in the control area confirmed the change in the groundwater regime in the post-clear-cutting area. Stronger relations in the period before clear-cutting were observed. Key words: clear-cutting, groundwater, forest catchment, swampy habitats

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评估森林砍伐对沼泽生境地下水状况的影响

本研究的目的是评价采伐对树木采伐区水分状况的影响。这些结果是基于在波兰Wielkopolska低地的Rakowski沟集水区进行的研究得出的。研究发现，比较采伐后与对照区地下水位的变化比分析采伐前后同一地区地下水位的变化更为有效。回归分析是地下水动态分析中一种特别有用的工具。研究结果表明，采伐后的地下水状态发生了变化，表现为平均GWL的增加。采伐后地下水状况的主要变化发生在最小水位，而最小变化发生在最大GWL。毁林后GWL的变化幅度大于毁林前。通过对采伐区和对照区井口GWL的线性回归分析，证实了采伐后井口地下水状态的变化。在砍伐森林之前，这种关系更为密切。关键词:采伐;地下水;森林集水区

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来源期刊

Baltic Forestry 农林科学-林学

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The journal welcomes the original articles as well as short reports, review papers on forestry and forest science throughout the Baltic Sea region and elsewhere in the area of boreal and temperate forests. The Baltic Sea region is rather unique through its intrinsic environment and distinguished geographical and social conditions. A temperate climate, transitional and continental, has influenced formation of the mixed coniferous and deciduous stands of high productivity and biological diversity. The forest science has been affected by the ideas from both the East and West. In 1995, Forest Research Institutes and Universities from Estonia, Latvia and Lithuania joined their efforts to publish BALTIC FORESTRY.