Water retention of the organic soil horizon in a central European deciduous forest

IF 0.5 Q3 GEOGRAPHY

GEOGRAFICKY CASOPIS-Geographical Journal Pub Date : 2021-12-17 DOI:10.31577/geogrcas.2021.73.4.18

Anton Zvala, P. Šurda, Anna Kidová, J. Vitková

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Abstract

The organic horizon of forest soil (OHFS) under deciduous forest is formed on the surface of the forest soil and is composed of a varied dead plant and animal material. This material gradually decomposes into recognizable layers of OHFS: litter, duff-1 and duff-2. Different soil water retention (SWR) can be expected from different layers of the OHFS. The determination of SWR was performed on the Tempe cells and pressure plate apparatus. We analyzed the SWR in the layers litter, duff-1, duff-2 of the OHFS. Statistically significant differences between all three examined layers of forest soil were examined. The analysis of the individually determined soil water retention curves (SWRC) proved that the litter layer of the OHFS had a maximal SWR at a water potential close to zero and a minimal value was estimated for the duff-2 layer. According to the results of our experiment the SWR decreases with the increasing depth of the organic horizon in the order litter>duff-1>duff-2. We determined potential areas with geographically similar conditions for the creation of the OHFS for SWR as in the study area.

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中欧落叶林有机土层的保水性

阔叶林下的森林土壤有机层是在森林土壤表面形成的，由各种死去的动植物物质组成。这种材料逐渐分解成可识别的OHFS层:垃圾，达夫-1和达夫-2。OHFS的不同层具有不同的土壤保水率。在Tempe细胞和压力板装置上进行了SWR的测定。我们分析了OHFS的凋落物层，duff-1层，duff-2层的SWR。在所有三个被检查的森林土壤层之间进行了统计显著差异的检查。单独测定的土壤保水曲线(SWRC)分析表明，OHFS凋落物层在水势接近于零时的土壤保水比最大，而duff-2层的土壤保水比最小。实验结果表明，随着有机层深度的增加，土壤的SWR呈凋落物>duff-1>duff-2的顺序递减。我们确定了与研究区域地理条件相似的潜在区域，以创建SWR的OHFS。

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来源期刊

GEOGRAFICKY CASOPIS-Geographical Journal GEOGRAPHY-

CiteScore

1.30

自引率

22.20%

发文量

期刊介绍： The journal publishes original and timely scientific articles that advance knowledge in all the fields of geography and significant contributions from the related disciplines. Papers devoted to geographical research of Slovakia and to theoretical and methodological questions of geography are especially welcome. In addition, the journal includes also short research notes, review articles, comments on published papers and reviews of selected publications. Papers are written in the Slovak language with English summary or in English and occasionally in some other world languages.