Effects of some physical and chemical soil properties on quantitative characteristics of Quercus infectoria Oliv. at Shine Forest of Lorestan Province

Document Type : Research article

Authors

1 Research Expert, Research Division of Natural Resources, Lorestan Agricultural and Natural Resources Research Center, AREEO, Khorramabad, Iran

2 Associate Prof., Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran

Abstract

This study was carried out to survey the effects of some physical and chemical soil properties on quantitative characteristics of Quercus infectoria. A number of 36 circular sample plots were randomly drawn with each plot being 1000 m2 of size, in which the number of trees, height, diameter and breast height (DBH) and crown diameter of individual trees were measured. The sampling design was a completely randomized design with 12 treatments and 3 replications. In each plot, soil profiles were dug (2 × 1.5 × 1 m), and samples were taken to measure the physiochemical properties. The results of analysis showed significant difference among treatments (p<0.01). Moreover, comparison of quantitative characteristics and physiochemical soil properties using Duncan test showed that the tree properties (number, height, DBH and crown diameter) as well as those of soil samples (depth, moisture saturation, percent of organic matter, phosphorus, potassium, sand and clay) showed comparatively better values across valley bottoms and northern slopes. In contrast, the southern slopes were associated with higher percentages of neutral solutes. Stepwise multiple linear regressions among quantitative tree attributes and soil factors suggested significant positive correlations with soil profile depth, soil moisture saturation, organic matter, phosphorus and potassium, and significant negative correlation with the percentage of neutral solutes. All in all an increase in soil depth, soil moisture saturation, organic carbon, phosphorus and potassium are concluded to led to more favorable conditions for the growth of Q. infectoria, whereas increasing the percentage of neutral solutes led to reduced quantitative tree attributes. Therefore, the studied physiochemical soil properties are concluded to essentially influence the occurrence and distribution of Q. infectoria trees in the study area.

Keywords

References

- Anonymous, 1998. Soil Survey Staff. Department of Agriculture and Natural Resources Conservation Service, Washington DC, 326p.
- El-Ghani, M.M.A. and Wafaa, M.A., 2003. Soil-vegetation relationship in a coastal desert plain of southern Sina, Egypt. Journal of Arid Environment, 55(4): 607-625.
- Fattahi, M., 1994. Study of Zagros Forests and the most Important Degradation Factors. Published by Research Institute of Forests and Rangelands, Tehran, 63p (In Persian).
- Fattahi, M. and Tavakoly, A., 1999. Methodes of seeding oak trees in Zagros. Published by Research Institute of Forests and Rangelands, Tehran, 242p (In Persian).
- Jazirehi, M.H. and Ebrahimi Rostaghi, M., 2003. Silviculture in Zagros. University of Tehran Press, Tehran, 560p (In Persian).
- Khodakarami, Y., Khan-Hassani, M., Zohrehvandi, A.A., Pourreza, M. and Sagheb-Talebi, Kh., 2011. Investigation on site demands of Acer mospessulanum and Quercus infectoria (Oliv.) in Kermanshah province. Final Report of Research Project, Research Institute of Forests and Rangelands, Tehran, 75p (In Persian).
- Maroufi, H., 2000. Site demands of Lebanon oak (Quercus libani Oliv.) in Kurdistan province. M.Sc. thesis, Imam Khomeini Higher Education Center, Tehran, 89p (In Persian).
- Noy-Meir, I., 1973. Multivaritae analysis of the semi-arid vegetation of southern Australia, II. Vegetation catenae and environmental gradients. Australian Journal of Botany, 22: 40-115.
- Sagheb-Talebi, Kh., Sajedi, T. and Pourhashemi, M., 2014. Forests of Iran: A Treasure from the Past, A Hope for the Future. Springer, New York, 152p.
- Talebi, M., Sagheb-Talebi, Kh. and Jahanbazi Goujani, H., 2006. Site demands and some  quantitative and qualitative characteristics of Persian oak (Quercus brantii Lindl.) in Chaharmahal and Bakhtiari province (Western Iran). Iranian Journal of Forest and Poplar Research, 14(1): 67-79.
- Ugurlu, S. and Cevik, I., 1990. Site factors  affecting the success of improvement studies  in degraded oak coppice in the Bingol region. Ormancilik  Arastirma  Enstitusu  Mudurlugu, Ankara, Turkey, 20: 75-87.

Files

Share

How to cite

Statistics