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| Main Authors: | , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
The Science of the total environment
2025
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/40957240/ |
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| _version_ | 1868266152117927936 |
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| author | Kooch, Yahya Heidari, Fateme Frouz, Jan Haghverdi, Katayoun Francaviglia, Rosa |
| author_facet | Kooch, Yahya Heidari, Fateme Frouz, Jan Haghverdi, Katayoun Francaviglia, Rosa Kooch, Yahya Heidari, Fateme Frouz, Jan Haghverdi, Katayoun Francaviglia, Rosa |
| collection | PubMed - marine biology |
| contents | Soil drainage reduces the negative impact of excessive soil moisture contents by improving the N dynamics in coastal forests. Kooch, Yahya Heidari, Fateme Frouz, Jan Haghverdi, Katayoun Francaviglia, Rosa Soil Forests Iran Nitrogen Environmental Monitoring Water Soil Microbiology Excessive soil moisture is one of the major factors determining biota activities and plant growth in terrestrial ecosystems. Nevertheless, a thorough and precise assessment of the effects of drainage on soil functions, particularly within coastal forests, remains largely unknown. This study was designed to assess the effect of different soil moisture conditions in two study sites (i.e., drainage vs. drying-rewetting) on litter quality, soil physical-chemical characters and biological dynamics in a part of the Hyrcanian Forest, northern Iran, dominated by oak (Quercus castaneifolia C.A.M.) and hornbeam (Carpinus betulus L). In total, 64 litter and soil (30 cm × 30 cm × 10 cm) samples were collected for the analyses of litter and soil physical-chemical properties (2 study sites × 8 plots × 4 samples), and 256 soil samples for biological characteristics (2 study sites × 4 seasons × 8 plots × 4 samples). The findings showed that drainage improved the soil physical conditions by reducing bulk density and increasing porosity and aggregate stability. Soil nutrient concentrations increased by 40-70 % in the drained site. The greatest level of soil enzyme activities was observed under drainage conditions, which were 1.5-2 times higher than in the site under drying-rewetting. The soil fauna population showed a decrease of 50-60 % under drying-rewetting, especially in the autumn season. Soil micro-flora, microbial activities and N mineralization were significantly lower, by 1.5 to 2 times, under drying-rewetting conditions. Based on results, drained sites showed better soil multifunctionality than undrained (drying-rewetting) sites. In this regard, it is suggested that appropriate drainage channels should be installed in areas with excessive soil moisture content to improve the condition of coastal ecosystems. In addition, natural resources managers are advised to plant tree species that are resistant to high soil moisture and to pump soil water naturally. |
| format | Artículo científico |
| id | pubmed_40957240 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | The Science of the total environment |
| record_format | pubmed |
| spellingShingle | Soil drainage reduces the negative impact of excessive soil moisture contents by improving the N dynamics in coastal forests. Kooch, Yahya Heidari, Fateme Frouz, Jan Haghverdi, Katayoun Francaviglia, Rosa Soil Forests Iran Nitrogen Environmental Monitoring Water Soil Microbiology Soil drainage reduces the negative impact of excessive soil moisture contents by improving the N dynamics in coastal forests. Kooch, Yahya Heidari, Fateme Frouz, Jan Haghverdi, Katayoun Francaviglia, Rosa Soil Forests Iran Nitrogen Environmental Monitoring Water Soil Microbiology Excessive soil moisture is one of the major factors determining biota activities and plant growth in terrestrial ecosystems. Nevertheless, a thorough and precise assessment of the effects of drainage on soil functions, particularly within coastal forests, remains largely unknown. This study was designed to assess the effect of different soil moisture conditions in two study sites (i.e., drainage vs. drying-rewetting) on litter quality, soil physical-chemical characters and biological dynamics in a part of the Hyrcanian Forest, northern Iran, dominated by oak (Quercus castaneifolia C.A.M.) and hornbeam (Carpinus betulus L). In total, 64 litter and soil (30 cm × 30 cm × 10 cm) samples were collected for the analyses of litter and soil physical-chemical properties (2 study sites × 8 plots × 4 samples), and 256 soil samples for biological characteristics (2 study sites × 4 seasons × 8 plots × 4 samples). The findings showed that drainage improved the soil physical conditions by reducing bulk density and increasing porosity and aggregate stability. Soil nutrient concentrations increased by 40-70 % in the drained site. The greatest level of soil enzyme activities was observed under drainage conditions, which were 1.5-2 times higher than in the site under drying-rewetting. The soil fauna population showed a decrease of 50-60 % under drying-rewetting, especially in the autumn season. Soil micro-flora, microbial activities and N mineralization were significantly lower, by 1.5 to 2 times, under drying-rewetting conditions. Based on results, drained sites showed better soil multifunctionality than undrained (drying-rewetting) sites. In this regard, it is suggested that appropriate drainage channels should be installed in areas with excessive soil moisture content to improve the condition of coastal ecosystems. In addition, natural resources managers are advised to plant tree species that are resistant to high soil moisture and to pump soil water naturally. |
| title | Soil drainage reduces the negative impact of excessive soil moisture contents by improving the N dynamics in coastal forests. |
| topic | Soil Forests Iran Nitrogen Environmental Monitoring Water Soil Microbiology |
| url | https://pubmed.ncbi.nlm.nih.gov/40957240/ |