Investigating Some Chemical Soil Properties in the Pollarded and Less-disturbed Forest Stands in the Northern Zagros (Case study: Baneh forest, Kurdistan)
Subject Areas : natural resorces
Jian Rahimi
1
(M.Sc., Department of Forestry, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran)
Kyumars Mohammadi Samani
2
(Assistant Professor, Department of Forestry, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran *(Corresponding Author))
Naghi Shabanian
3
(Assossiate Professor, Department of Forestry, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran)
Mohammad Shafi Rahmani
4
(Laboratory Expert, Forest biology Lab, Department of Forestry, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran)
Keywords: Forest stand, Less-disturbed forest, Soil nutrients, northern Zagros, Pollarding,
Abstract :
Background and Objectives: A Northern Zagros oak forests have been pollarded since a long time ago and finally they have been destroyed by forest dwellers. This study was aimed to investigate the effect of pollarding on some soil chemical properties. Method: Two adjacent oak forest stands with similar physiography were selected including a less-disturbed area (as control stand) and pollarded stands that it periodically pollarded once every three years. 10 composite soil samples under the tree crown have been taken from 0-15 cm soil depth of each area. Finally, soil organic carbon, total nitrogen, C/N ratio, phosphorus, potassium, calcium, magnesium, pH and EC were analyzed. Findings: The results showed that all soil factors had significant differences in theses area except magnesium and C/N ratio. The amount of calcium and pH increased in pollarded area compare with control while soil organic carbon, total nitrogen, phosphorus, potassium and EC decreased. Discussion and Conclusion: The results of this study showed that preservation of trees and stop pollarding trees in control area can produce a better soil condition compare with pollard stands. People use trees foliage to feeding livestock by oak pollarding in this forest so that these pollarding activities of local dwellers can reduce the amount of soil organic matter content and soil nutrient reserves. The decreasing of soil nutrient reserves will be very harmful to conserve the soil fertility and productivity.
- Yang, K., Jun Zhua, J., Yana, Q and Sunc, O., 2010. Changes in soil p chemistry as affected by conversion of natural secondary forests to larch plantations, Forest Ecology and Management, 260 (3): 422-428.
- Haghnia, G H and Kouchaki, A.1996. Sustainable management of soilAcademic center for Education, Culture and Research - Khorasan Razavi. 204pp (In Persian)
- Sun, R., Chen, J.M and Zhaou, Y.Y., 2004, Spatial distribution of net primary productivity and evapotranspiration in Changbaishan natural reserve. China, using landsat ETM+ data, Canadian Journal of Remote Sensing, 30 (5): 731-742.
- Sagheb Talebi, Khosro, Toktam Sajedi, and Mehdi Pourhashemi. 2014. Forests of Iran : A Treasure from the Past, a Hope for the Future, Plant and Vegetation;10. Dordrecht: Springer Netherlands. 152p. (In Persian)
- Salehi, A., Mohammadi, A and Safari. A. 2011. Investigation and comparison of physical and chemical soil properties and quantitative characteristics of trees in less-damaged and damaged area of Zagross forests (Case study: Poldokhtar, Lorestan province). Iranian Journal of Forest, 3 (1): 81-89 (In Persian)
- Ghazanfari, H., Namiranian, M., Sobhani, H., Marvi Mohadjer, M. R and Pourtahmasi, K. 2005. An Estimation of Tree Diameter Growth of Lebanon Oak (Quercus libani) in Northern Zagross Forests (Case Study, Havareh khole). Iranian J. Natural Res, 57 (4): 558-662. (In Persian)
- Fattahi M, 1994. Study on Zagros oak forests and the most important their destruction causes. Institute of Forests and Rangelands Research press, Sanandaj, Iran.63p. (In Persian)
- Camping, T. J., Dahlgren R.A., TateK. Wand HorwathW. R., 2002. Changes in soil quality due to grazing and oak tree removal in California blue oak woodlands. USDA Forest Service Gen, 184 :75-85.
- Dahlgren, R., Singer, M.J., 1991. Nutrient cycling in managed and unmanaged oak woodland-grass ecosystems. USDA Forest Service Gen. 126: 337-341.
- Dahlgren, R.A., Singer, M. J and Huang, X., 1997. Oak tree and grazing impacts on soil properties and nutrients in California oak woodland. Biogeochemistry, 39; 45–64.
- Gallardo, A., 2003. Effect of tree canopy on the spatial distribution of soil nutrients in a Mediterranean Dehesa. Pedobiologia Urban and Fischer Verlag, 47:117–125.
- Moreno, G., Jesus Obrador, J. and Garcıa, A., 2007. Impact of evergreen oaks on soil fertility and crop production in intercropped dehesas. Agriculture, Ecosystems and Environment, 119: 270–280.
- Tarrega, R., Calvo, L., Marcos E and Taboada, A., 2007. Comparison of understory plant community composition and soil characteristics in Quercus pyrenaica stands with different human uses. Forest Ecology and Management 241: 235–242.
- Zarrinkafsh, M. 2002. Forest Soils. Iran: Iran Research Institute of Forest and Rangelands Press. 361p. (In Persian)
_||_
- Yang, K., Jun Zhua, J., Yana, Q and Sunc, O., 2010. Changes in soil p chemistry as affected by conversion of natural secondary forests to larch plantations, Forest Ecology and Management, 260 (3): 422-428.
- Haghnia, G H and Kouchaki, A.1996. Sustainable management of soilAcademic center for Education, Culture and Research - Khorasan Razavi. 204pp (In Persian)
- Sun, R., Chen, J.M and Zhaou, Y.Y., 2004, Spatial distribution of net primary productivity and evapotranspiration in Changbaishan natural reserve. China, using landsat ETM+ data, Canadian Journal of Remote Sensing, 30 (5): 731-742.
- Sagheb Talebi, Khosro, Toktam Sajedi, and Mehdi Pourhashemi. 2014. Forests of Iran : A Treasure from the Past, a Hope for the Future, Plant and Vegetation;10. Dordrecht: Springer Netherlands. 152p. (In Persian)
- Salehi, A., Mohammadi, A and Safari. A. 2011. Investigation and comparison of physical and chemical soil properties and quantitative characteristics of trees in less-damaged and damaged area of Zagross forests (Case study: Poldokhtar, Lorestan province). Iranian Journal of Forest, 3 (1): 81-89 (In Persian)
- Ghazanfari, H., Namiranian, M., Sobhani, H., Marvi Mohadjer, M. R and Pourtahmasi, K. 2005. An Estimation of Tree Diameter Growth of Lebanon Oak (Quercus libani) in Northern Zagross Forests (Case Study, Havareh khole). Iranian J. Natural Res, 57 (4): 558-662. (In Persian)
- Fattahi M, 1994. Study on Zagros oak forests and the most important their destruction causes. Institute of Forests and Rangelands Research press, Sanandaj, Iran.63p. (In Persian)
- Camping, T. J., Dahlgren R.A., TateK. Wand HorwathW. R., 2002. Changes in soil quality due to grazing and oak tree removal in California blue oak woodlands. USDA Forest Service Gen, 184 :75-85.
- Dahlgren, R., Singer, M.J., 1991. Nutrient cycling in managed and unmanaged oak woodland-grass ecosystems. USDA Forest Service Gen. 126: 337-341.
- Dahlgren, R.A., Singer, M. J and Huang, X., 1997. Oak tree and grazing impacts on soil properties and nutrients in California oak woodland. Biogeochemistry, 39; 45–64.
- Gallardo, A., 2003. Effect of tree canopy on the spatial distribution of soil nutrients in a Mediterranean Dehesa. Pedobiologia Urban and Fischer Verlag, 47:117–125.
- Moreno, G., Jesus Obrador, J. and Garcıa, A., 2007. Impact of evergreen oaks on soil fertility and crop production in intercropped dehesas. Agriculture, Ecosystems and Environment, 119: 270–280.
- Tarrega, R., Calvo, L., Marcos E and Taboada, A., 2007. Comparison of understory plant community composition and soil characteristics in Quercus pyrenaica stands with different human uses. Forest Ecology and Management 241: 235–242.
- Zarrinkafsh, M. 2002. Forest Soils. Iran: Iran Research Institute of Forest and Rangelands Press. 361p. (In Persian)