Effect of thinning on the amount of mineral nitrogen
The soil nitrogen cycle and the dynamics of its transformation are closely related to the functioning of the forest ecosystem. This cycle, and the availability of nitrogen as a necessary nutrient in the soil, can be influenced by the process of thinning. The aim of this study is to describe the impa...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2018-07-01
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| Series: | Journal of Forest Science |
| Subjects: | |
| Online Access: | https://jfs.agriculturejournals.cz/artkey/jfs-201807-0001_effect-of-thinning-on-the-amount-of-mineral-nitrogen.php |
| _version_ | 1797898749064773632 |
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| author | Ladislav HOLÍK Jana ROSÍKOVÁ Valerie VRANOVÁ |
| author_facet | Ladislav HOLÍK Jana ROSÍKOVÁ Valerie VRANOVÁ |
| author_sort | Ladislav HOLÍK |
| collection | DOAJ |
| description | The soil nitrogen cycle and the dynamics of its transformation are closely related to the functioning of the forest ecosystem. This cycle, and the availability of nitrogen as a necessary nutrient in the soil, can be influenced by the process of thinning. The aim of this study is to describe the impact of silvicultural measures on the content of ammonium and nitrate nitrogen in forest soil. Attention is paid to the organic (spruce treatments) and organomineral horizon (beech treatments) in which the transformation of soil nitrogen is most pronounced. Spruce treatments at the Rájec-Němčice area and beech stands at the Březina area, both in the region of Drahanská vrchovina (Czech Republic), were selected for the experiments. Two variants of thinning thinning from below and thinning from above, were performed in the spruce treatments, and thinning from above was performed in the beech treatments. Control variants with no silvicultural measures were defined in both treatments. The amount of ammonium nitrogen in the spruce treatments with thinning from above was in most cases higher than in the other variants. On the contrary, in variant with thinning from below, the ammonium nitrogen content decreased. In terms of the nitrate nitrogen content, the values were generally higher for variants with silvicultural measures than for the control variants. In the beech treatments, the amount of ammonium nitrogen increased and, on the contrary, there was a small decrease in the amount of nitrate nitrogen due to the effect of thinning from above. The differences between thinning from above and the control variants in the beech treatments were less noticeable than in the spruce treatments. Overall, however, it can be said that the nitrogen content available to the vegetation increased. The results of the given experiment provide insight into the trends of nitrogen mineralization intensity in stands in which silvicultural measures are performed. |
| first_indexed | 2024-04-10T08:19:04Z |
| format | Article |
| id | doaj.art-fab38179bdf745298af80887770aab0e |
| institution | Directory Open Access Journal |
| issn | 1212-4834 1805-935X |
| language | English |
| last_indexed | 2024-04-10T08:19:04Z |
| publishDate | 2018-07-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Journal of Forest Science |
| spelling | doaj.art-fab38179bdf745298af80887770aab0e2023-02-23T03:42:56ZengCzech Academy of Agricultural SciencesJournal of Forest Science1212-48341805-935X2018-07-0164728929510.17221/5/2018-JFSjfs-201807-0001Effect of thinning on the amount of mineral nitrogenLadislav HOLÍK0Jana ROSÍKOVÁ1Valerie VRANOVÁ2Crop Research Institute, Prague 6-Ruzyně, Czech RepublicDepartment of Geology and Soil Science, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech RepublicDepartment of Geology and Soil Science, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech RepublicThe soil nitrogen cycle and the dynamics of its transformation are closely related to the functioning of the forest ecosystem. This cycle, and the availability of nitrogen as a necessary nutrient in the soil, can be influenced by the process of thinning. The aim of this study is to describe the impact of silvicultural measures on the content of ammonium and nitrate nitrogen in forest soil. Attention is paid to the organic (spruce treatments) and organomineral horizon (beech treatments) in which the transformation of soil nitrogen is most pronounced. Spruce treatments at the Rájec-Němčice area and beech stands at the Březina area, both in the region of Drahanská vrchovina (Czech Republic), were selected for the experiments. Two variants of thinning thinning from below and thinning from above, were performed in the spruce treatments, and thinning from above was performed in the beech treatments. Control variants with no silvicultural measures were defined in both treatments. The amount of ammonium nitrogen in the spruce treatments with thinning from above was in most cases higher than in the other variants. On the contrary, in variant with thinning from below, the ammonium nitrogen content decreased. In terms of the nitrate nitrogen content, the values were generally higher for variants with silvicultural measures than for the control variants. In the beech treatments, the amount of ammonium nitrogen increased and, on the contrary, there was a small decrease in the amount of nitrate nitrogen due to the effect of thinning from above. The differences between thinning from above and the control variants in the beech treatments were less noticeable than in the spruce treatments. Overall, however, it can be said that the nitrogen content available to the vegetation increased. The results of the given experiment provide insight into the trends of nitrogen mineralization intensity in stands in which silvicultural measures are performed.https://jfs.agriculturejournals.cz/artkey/jfs-201807-0001_effect-of-thinning-on-the-amount-of-mineral-nitrogen.phpnitrogen mineralizationforest managementnorway spruceeuropean beech |
| spellingShingle | Ladislav HOLÍK Jana ROSÍKOVÁ Valerie VRANOVÁ Effect of thinning on the amount of mineral nitrogen Journal of Forest Science nitrogen mineralization forest management norway spruce european beech |
| title | Effect of thinning on the amount of mineral nitrogen |
| title_full | Effect of thinning on the amount of mineral nitrogen |
| title_fullStr | Effect of thinning on the amount of mineral nitrogen |
| title_full_unstemmed | Effect of thinning on the amount of mineral nitrogen |
| title_short | Effect of thinning on the amount of mineral nitrogen |
| title_sort | effect of thinning on the amount of mineral nitrogen |
| topic | nitrogen mineralization forest management norway spruce european beech |
| url | https://jfs.agriculturejournals.cz/artkey/jfs-201807-0001_effect-of-thinning-on-the-amount-of-mineral-nitrogen.php |
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