Assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech (a case study of Lavij-Noor, Iran)
The present study has been done to evaluate the impact of pure ash stand and mixed stand with beech on the herb layer biodiversity and soil properties in the forests of Noor city. There is a unique stand of ash in the forests of Noor city and at 1,900-2,100 m a.s.l., which is rarely seen like that i...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2017-10-01
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| Series: | Journal of Forest Science |
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| Online Access: | https://jfs.agriculturejournals.cz/artkey/jfs-201710-0001_assessment-of-plant-biological-diversity-and-soil-characteristics-in-the-pure-ash-tree-stand-and-in-mixture-wit.php |
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| author | Mohammad Reza POURMAJIDIAN Hossein Kavian |
| author_facet | Mohammad Reza POURMAJIDIAN Hossein Kavian |
| author_sort | Mohammad Reza POURMAJIDIAN |
| collection | DOAJ |
| description | The present study has been done to evaluate the impact of pure ash stand and mixed stand with beech on the herb layer biodiversity and soil properties in the forests of Noor city. There is a unique stand of ash in the forests of Noor city and at 1,900-2,100 m a.s.l., which is rarely seen like that in the northern forests of Iran. Shannon-Wiener diversity indices (H'), Simpson index of dominance (D), Margalef richness (R1) and Pielou's evenness were used to analyse biodiversity. Sampling was also conducted to investigate physical and chemical properties of soil (bulk density, acidity, electrical conductivity, soil moisture, soil lime, nitrogen and organic carbon) in each sample plot and at two depths (10 and 20 cm). The total number of 26 soil samples (13 soil samples at either depth) in pure ash stand and 24 soil samples (12 soil samples at either depth) from this type of stand mixed with beech were taken. The results of plant species biodiversity showed that between the pure ash stand and the stand mixed with beech there is a significant difference at the 99% probability level in Shannon-Wiener diversity, Margalef richness, and Simpson dominance. There is also a significant difference at the 95% probability level between the two stands under study in Pielou's evenness index. The results of soil factors also showed that at the depth of 10-20 cm acidity factor showed a significant difference from its adjacent stand at the 99% probability level. There is also a significant difference at the 99% probability level in acidity (0-10 cm) and soil moisture at the depth of 10-20 cm between the two areas, but there is not any significant difference between the areas under study in electrical conductivity and lime factors at the two depths and also in moisture content at the depth of 0-10 cm. It should be noted that between the stand and soil nitrogen, organic carbon and bulk density parameters at both depths (0-10 and 10-20 cm) a significant difference at the 95% confidence level is shown. |
| first_indexed | 2024-04-10T08:18:34Z |
| format | Article |
| id | doaj.art-8bb2761f31a04a6eb792c391f9ea43f5 |
| institution | Directory Open Access Journal |
| issn | 1212-4834 1805-935X |
| language | English |
| last_indexed | 2024-04-10T08:18:34Z |
| publishDate | 2017-10-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Journal of Forest Science |
| spelling | doaj.art-8bb2761f31a04a6eb792c391f9ea43f52023-02-23T03:42:51ZengCzech Academy of Agricultural SciencesJournal of Forest Science1212-48341805-935X2017-10-01631044344810.17221/81/2016-JFSjfs-201710-0001Assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech (a case study of Lavij-Noor, Iran)Mohammad Reza POURMAJIDIANHossein Kavian0Department of Forestry, Faculty of Natural Resources, Sari Agricultural and Natural Resources University, Sari, IranThe present study has been done to evaluate the impact of pure ash stand and mixed stand with beech on the herb layer biodiversity and soil properties in the forests of Noor city. There is a unique stand of ash in the forests of Noor city and at 1,900-2,100 m a.s.l., which is rarely seen like that in the northern forests of Iran. Shannon-Wiener diversity indices (H'), Simpson index of dominance (D), Margalef richness (R1) and Pielou's evenness were used to analyse biodiversity. Sampling was also conducted to investigate physical and chemical properties of soil (bulk density, acidity, electrical conductivity, soil moisture, soil lime, nitrogen and organic carbon) in each sample plot and at two depths (10 and 20 cm). The total number of 26 soil samples (13 soil samples at either depth) in pure ash stand and 24 soil samples (12 soil samples at either depth) from this type of stand mixed with beech were taken. The results of plant species biodiversity showed that between the pure ash stand and the stand mixed with beech there is a significant difference at the 99% probability level in Shannon-Wiener diversity, Margalef richness, and Simpson dominance. There is also a significant difference at the 95% probability level between the two stands under study in Pielou's evenness index. The results of soil factors also showed that at the depth of 10-20 cm acidity factor showed a significant difference from its adjacent stand at the 99% probability level. There is also a significant difference at the 99% probability level in acidity (0-10 cm) and soil moisture at the depth of 10-20 cm between the two areas, but there is not any significant difference between the areas under study in electrical conductivity and lime factors at the two depths and also in moisture content at the depth of 0-10 cm. It should be noted that between the stand and soil nitrogen, organic carbon and bulk density parameters at both depths (0-10 and 10-20 cm) a significant difference at the 95% confidence level is shown.https://jfs.agriculturejournals.cz/artkey/jfs-201710-0001_assessment-of-plant-biological-diversity-and-soil-characteristics-in-the-pure-ash-tree-stand-and-in-mixture-wit.phphyrcanian forestmixed standbiodiversityshannon-wienersoil chemical properties |
| spellingShingle | Mohammad Reza POURMAJIDIAN Hossein Kavian Assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech (a case study of Lavij-Noor, Iran) Journal of Forest Science hyrcanian forest mixed stand biodiversity shannon-wiener soil chemical properties |
| title | Assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech (a case study of Lavij-Noor, Iran) |
| title_full | Assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech (a case study of Lavij-Noor, Iran) |
| title_fullStr | Assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech (a case study of Lavij-Noor, Iran) |
| title_full_unstemmed | Assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech (a case study of Lavij-Noor, Iran) |
| title_short | Assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech (a case study of Lavij-Noor, Iran) |
| title_sort | assessment of plant biological diversity and soil characteristics in the pure ash tree stand and in mixture with beech a case study of lavij noor iran |
| topic | hyrcanian forest mixed stand biodiversity shannon-wiener soil chemical properties |
| url | https://jfs.agriculturejournals.cz/artkey/jfs-201710-0001_assessment-of-plant-biological-diversity-and-soil-characteristics-in-the-pure-ash-tree-stand-and-in-mixture-wit.php |
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