| تعداد نشریات | 287 |
| تعداد نشریات سازمان | 85 |
| تعداد شمارهها | 3,159 |
| تعداد مقالات | 35,108 |
| تعداد مشاهده مقاله | 50,529,785 |
| تعداد دریافت فایل اصل مقاله | 90,478,277 |
بررسی خواص چوب کاج الدار و ارتباط آن با خواص فیزیکی و شیمیایی خاک در تودههای دستکاشت غرب استان مازندران | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| مقاله 3، دوره 29، شماره 2 - شماره پیاپی 47، تیر 1393، صفحه 199-207 اصل مقاله (207.45 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijwpr.2014.5683 | ||
| نویسنده | ||
| مجید کیائی* | ||
| استادیار گروه تخصصی صنایع چوب و کاغذ، دانشگاه آزاد اسلامی واحد چالوس | ||
| چکیده | ||
| تحقیق حاضر با هدف بررسی تاثیر ارتفاع از سطح دریا و ویژگیهای خاک بر خواص فیزیکی چوب کاج الدار در طرح جنگلکاری غرب استان مازندران صورت پذیرفت. برای این منظور، تعداد نه اصله درخت سالم کاج از ارتفاع 500، 1200 و 1400 متری از سطح دریا در غرب استان مازندران (واقع در شهرستان چالوس) انتخاب و از هردرخت ، یک دیسک از ارتفاع برابر سینه قطع گردید. نمونههای آزمونی در محور شعاعی درخت از مغز به سمت پوست مطابق با استاندارد تعیین شده برای محاسبه خواص چوب شامل دانسیته خشک، دانسیته بحرانی و پهنای دوایر رویش بریده شد. از زیر تاج پوشش هر درخت ، تعداد چهار نمونه خاک از عمق زمین (40 -20 سانتیمتری) برای محاسبه خواص فیزیکی و شیمیایی خاک شامل رس، سیلت ، شن، اسیدیته خاک، منگنز، آهن، مس، روی، فسفر و پتاسیم خاک تهیه و سپس ادغام گردید. در پایان، ارتباط بین خواص چوب و مشخصات خاک با استفاده از همبستگی پیرسون و چندگانه مورد بررسی قرار گرفت. مطالعه خواص چوب نشان داد که با افزایش ارتفاع از سطح دریا، میزان پهنای دوایر رویش افزایش و میزان دانسیته خشک و بحرانی کاهش یافت. | ||
| کلیدواژهها | ||
| کاج الدار؛ پهنای دوایر رویش؛ دانسیته؛ ارتفاع درختان؛ خواص فیزیکی خاک؛ خواص شیمیایی خاک | ||
| عنوان مقاله [English] | ||
| Investigation on wood properties of eldar pine and its relations to soil chemical and physical characteristics (in western of Mazandarn province platation) | ||
| نویسندگان [English] | ||
| Majid Kiaei | ||
| Assistant Professor, Department of Wood and Paper Science and Technology, Islamic Azad University of Chaloos Branch, Iran | ||
| چکیده [English] | ||
| This study examined the effects of altitude and soil characteristics on wood properties of Eldar pine and soil characteristics in western of Mazandran forest. For this purpose, nine normal pine trees was selected from three classes of altitude 500, 1200, and 1400 m, which located in Chaloos region. Disks were cut at breast height for each of trees. Testing samples were taken in radial position from the pith to the bark to determine wood properties such as oven dry density, wood basic density, and annual ring width. For each of tress in three different altitudes, four soil profiles of 20-40cm depth was taken to examine soil physical and chemical properties include clay, silt, sand, pH, Mn, fe, cu, zn, P, and K. Then relationship between the soil and wood properties were investigated with Pearson correlation and multiple correlations. Results of soil and wood properties indicated that by increasing altitude, the amount of annual ring width was increased, and the wood density was decreased, while the clay, Mn, fe, and Cu content in altitude 1200m, silt, Zn and K in lower altitude and P and sand in higher altitude is higher than other altitudes. Among of above variables, only the effect of clay, sand, P and Fe of soils on the wood different properties by Pearson correlation. The relationship between soil and wood properties by forward stepwise regression indicated that | ||
| کلیدواژهها [English] | ||
| Pinus eldarica Medw, annual ring width, wood density, tree height, soil physical properties, Soil chemical properties | ||
| مراجع | ||
|
-Alvarado, A. 2006. Nutrición y fertilización de la teca. Informaciones Agronómicas, 61: 1–8. 5. -Black, C.A. 1965. Methods of analysis. Agronomy Monographs No: 9, Part 1 and 2. American Society Agronomy, Madison, WI. -Bektas, I., Hakki Alma, M., Goker, Y., and Yuksel, A. 2003. Influence of site on sapwood and heartwood ratios of Turkish Calabrian pine. Forest product journal, 53(4): 48-50. -Bektas, I., Hakki Alma, M., As, N., and Gundogan, R. 2003. Relationship between site index and several mechanical properties of Turkish calabrian pine (Pinus brutia Ten). Forest Products Journal, 53(2): 1-5. -Blouin, D., Beaulieu, J., Daoust, G., and Poliquin, J. 1994. Wood quality of Norway spruce grown in plantations in Quebec. Wood and Fiber Science, 26: 342–353. -Cutter, B.E., Coggeshall, M.V., Phelps, J.E., and Stokke, D.D. 2004. Impacts of forest management activities on selected hardwood wood quality attributes: a review. Wood and Fiber Science,36: 84–97. -Dünisch, O. and Bauch, J. 1994. Influence of mineral elements on wood formation of old growth spruce (Picea abies [L.] Karst.). Holzforshung,48: 5–14. -Koga, S., Zhang, S.Y., and Begin, J., 2002. Effects of precommercial thinning on annual radial growth and wood density in Balsam fir ( Abies balsamea). Fiber Science, 34: 624-645. -Moya, R., and Perez, D. 2008. Effects of physical and chemical soil properties on physical wood characteristics of Tectona grandis plantations in Costa Rica. Journal of tropical forest science, 20(4): 248-257. -Olesen, P.O. 1977. The variation of the basic density level and tracheid width within the juvenile and mature wood of Norway spruce. Forest Tree Improvement, 12: 1–21. - Parsa, d., 1993. Wood Technology. Tehran University Press. -Panshin, A., and Dezeeuw, C. 1980. TextBook of wood technology. 4th edition, McGraw-Hill, New York. -Rasikila, S., Saranpää, P. Fagerstedt, K. and Laskso, T. 2006. Growth rate and wood properties of Norway spruce cutting clones on different sites. Silva Fennica J, 40(2): 247-255. -Rigatto, P.A., Dedecek, R.A., and Monteiro de Matos, J.L. 2004. Influência dos atributos do solo sobre a qualidade da madeira de Pinus taeda para produção de celulose kraft. Revista árvore,28: 267–273. -Tufekcloglu, A., Altun, L., Zeki Kalay, H., and Yilmaz, M. 2005. Effects of some soil properties on the growth of hybrid poplar in the terme-Golardi region of Turkey. Turkish journal agriculture forest, 29: 221-226. -Yanez-Espinosa, L., Terrazas, L., and López-Mata, L. 2001. Effects of flooding on wood and bark anatomy of four species in a mangrove forest community. Trees,15: 91–97. -Zare, H., 2001. Native and Exotic species of conifer in Iran. Publications of Research Institute of Forests and Rangelands. Page 498 -Zhang, S.Y., 1998. Effect of age on the variation, correlations and inheritance of selected wood characteristics in black spruce (Picea mariana). Wood Science and Technology, 32: 197-204. -Zhang, S.Y., Simpson, D., and Morgenstern, E.K. 1996. Variation in the relationship of wood density with growth in 40 black spruce (Picea mariana) families grown in New Brunswick. Wood and Fiber Science, 28: 91–99. -Zhang, S.Y., 1995. Effect of growth rate on wood specific gravity and selected mechanical properties in individual species from distinct wood categories. Wood Science and Technology, 29: 451–465. -ZobeL, B.J., and Van Bujitenen, J.P. 1989. Wood variation, Its causes and control, Spring-Verlag, Berlin, Heidelberg, New York. | ||
|
آمار تعداد مشاهده مقاله: 3,009 تعداد دریافت فایل اصل مقاله: 1,750 |
||