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Information Journal Paper

Title

THE EFFECT OF OVERSTORY LAYER ON SOIL PHYSICOCHEMICAL PROPERTIES IN A FOREST ECOSYSTEM

Pages

  1-24

Abstract

 Background and objectives: The forest as one of the most valuable terrestrial ecosystems has played important roles in supplying the human needs from the past to present. The stability of a forest is depended on its soil nutrient maintenance and understanding SOIL PROPERTIES can be considered as one of the basic principles of forest management. Macronutrient stocks are among the important indicators to evaluate the effect of tree species on ecosystem function. Several studies have examined the effects of overstory layer on SOIL PROPERTIES indicating a significant effect of over story tree species on soil productivity. Therefore, the aim of the present study was to evaluate the role of forest ecosystems in soil characteristic variability as well as to compare the possible changes in the soil of forest ecosystems with control area.Materials and methods: In the present study, the effect of overstory layer on soil physicochemical properties of natural and planted forest stands in Chamestan region, Noor, in the Hyrcanian forests of northern Iran was evaluated. In order to investigate some of the indicators of soil productivity in the study area in each of the stands, including natural forest (Acer velutinum Boiss, Zelkova carpinifolia (Pall), Parrotia persica (DC.) C.A.Mey, Quercus castanifolia C.A. Mey, Carpinus betulusL), Mixed planted stands (Acer velutinum, Ulmus carpinifolia G. Suckow, Quercues castanifolia, Carpinus betulus L, Tilia begonifolia Scop. Subsp. caucasia (Rupr.) Loria), maple (Acer velutinum Boiss.) PLANTATION, pine PLANTATION (Pinus taedaL.) and a clear-cut region (control) a number of 16 soil samples were taken at two depths of 0-15 and 15-30 cm. Soil samples were air-dried and sieved with a 2mm sieve then transported to the laboratory for measuring concentrations of macronutrients such as, nitrogen, phosphorus, potassium, magnesium, calcium, and some physicochemical properties such as percentage of the components constituting texture and water content and ratio.Results: The results showed that soil texture components except sand, were significantly different between the stands, but were not significantly different in different soil depths. Moreover, there was a significant difference between stands and depths in terms of water content and ratio, as the highest amount of water content of 19.34 and 18.77 percent and ratio of 12.91, 11.75 were related to pine PLANTATION and first layer, respectively. Measurements of soil nutrient stocks showed that fertility decreased in relation to increased soil depth, with significant differences depending on soil depth. Likewise, the result of soil macronutrient stocks revealed the highest amount of total nitrogen stock for mixed PLANTATION and the highest amount of available phosphorus stock for maple PLANTATION. Further, pine PLANTATION had the highest available potassium stock than other treatments.The highest available magnesium and calcium stocks were found in natural forest and control area, respectively.Conclusion: As a conclusion, the BROAD-LEAVED species were more successful about most of the nutrient stocks than NEEDLE-LEAVED stand and control area.

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    APA: Copy

    RAFEIE JAHED, R., HOSSEINI, S.M., & KOOCH, Y.. (2017). THE EFFECT OF OVERSTORY LAYER ON SOIL PHYSICOCHEMICAL PROPERTIES IN A FOREST ECOSYSTEM. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 23(4), 1-24. SID. https://sid.ir/paper/156897/en

    Vancouver: Copy

    RAFEIE JAHED R., HOSSEINI S.M., KOOCH Y.. THE EFFECT OF OVERSTORY LAYER ON SOIL PHYSICOCHEMICAL PROPERTIES IN A FOREST ECOSYSTEM. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2017;23(4):1-24. Available from: https://sid.ir/paper/156897/en

    IEEE: Copy

    R. RAFEIE JAHED, S.M. HOSSEINI, and Y. KOOCH, “THE EFFECT OF OVERSTORY LAYER ON SOIL PHYSICOCHEMICAL PROPERTIES IN A FOREST ECOSYSTEM,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 23, no. 4, pp. 1–24, 2017, [Online]. Available: https://sid.ir/paper/156897/en

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