| تعداد نشریات | 286 |
| تعداد نشریات سازمان | 84 |
| تعداد شماره‌ها | 2,980 |
| تعداد مقالات | 33,446 |
| تعداد مشاهده مقاله | 43,912,337 |
| تعداد دریافت فایل اصل مقاله | 20,411,225 |
تغییرات عناصر غذایی خاک و برگ راش (Fagus orientalis Lipsky) در مراحل مختلف تحولی راشستان (مطالعه موردی: جنگل رزه، استان گیلان) | ||
| تحقیقات جنگل و صنوبر ایران | ||
| مقاله 13، دوره 24، شماره 2 - شماره پیاپی 64، تیر 1395، صفحه 331-323 اصل مقاله (236.21 K) | ||
| نوع مقاله: علمی- پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijfpr.2016.106993 | ||
| نویسندگان | ||
| احمد رحمانی* 1؛ مریم تیموری2؛ محمد متینی‌زاده1؛ یوسف کلافی2؛ بیت‌اله امان‌زاده3 | ||
| 1دانشیار پژوهش، مؤسسه تحقیقات جنگلها و مراتع کشور | ||
| 2مربی پژوهش، مؤسسه تحقیقات جنگلها و مراتع کشور | ||
| 3مربی پژوهش، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی گیلان | ||
| چکیده | ||
| هدف این مطالعه بررسی عناصر غذایی در برگ و خاک راش (Fagus orientalis Lipsky) در راشستانی با مراحل مختلف تحولی به‌منظور آگاهی از رابطه وضعیت خاک و تغذیه درختان با ساختار اکوسیستم بود. اطلاع از چگونگی تغییرات عناصر و ارتباط این تغییرات با مراحل تحولی راش که در سطح جنگل قابل مشاهده است، امکان مدیریت بهتر این توده‌ها را فراهم می‌سازد. سه قطعه‌نمونه یک هکتاری در سه مرحله تحولی راش (جوانی، اوج و پوسیدگی) درنظر گرفته شدند. در هر قطعه‌نمونه یک خط‌نمونه و در هر خط‌نمونه چهار قطعه‌نمونه 400 متر مربعی انتخاب شدند. برای بررسی خصوصیات خاک از چهار گوشه و مرکز هر قطعه‌نمونه، نمونه‌هایی از عمق‌های صفر تا 10 و 10 تا 20 سانتی‌متری برداشت و تجزیه شد. همچنین از 10 درخت نمونه‌برداری برگ انجام شد و عناصر نیتروژن، فسفر، پتاسیم، منیزیم، کلسیم، روی، آهن و منگنز اندازه‌گیری شدند. براساس نتایج به‌دست‌آمده، درصد کربن و مواد آلی در خاک منطقه‌ای که در مرحله پوسیدگی قرار داشت، بیشتر از دو مرحله دیگر بود. پتاسیم تبادلی و فسفر قابل جذب در خاک درختانی که در مرحله جوانی قرار داشتند، بیشتر بود. عناصر غذایی و مواد آلی خاک در خاک سطحی بیشتر از عمقی بود. تجزیه برگ نیز نشان داد که عنصر نیتروژن در مرحله پوسیدگی بیشتر از مراحل دیگر بود و عناصر دیگر تغییرات زیادی نداشتند. جذب عناصر غذایی نیز مستقل از میزان عناصر غذایی در خاک بود. اگرچه مقدار عناصر غذایی برگ درختان راش در مراحل مختلف تحولی تفاوت‌هایی با هم داشتند، اما دامنه تغییرات و نسبت عناصر غذایی در محدوده مشخصی بود که نشان‌دهنده سلامت این اکوسیستم بود. | ||
| کلیدواژه‌ها | ||
| اکوسیستم جنگلی؛ تجزیه برگ؛ خصوصیات خاک؛ مدیریت جنگل؛ مراحل تحولی | ||
| عنوان مقاله [English] | ||
| Evaluation of soil and leaves nutrients concentration of beech (Fagus orientalis Lipsky) in different development stages of a beech stand (Case study: Raze forest, Guilan) | ||
| نویسندگان [English] | ||
| Ahmad Rahmani1؛ Maryam Teimouri2؛ Mohammad Matinizade1؛ Yousef Kalafi2؛ Beitollah Amanzade3 | ||
| 1Associate Prof, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO) | ||
| 2Senior Research Expert, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO) | ||
| 3Senior Research Expert, Research Division of Natural Resources, Guilan Agricultural and Natural Resources Research and Education Center, AREEO | ||
| چکیده [English] | ||
| This study evaluated soil and nutrient concentration in different phases of developmental cycle in untouched habitat of oriental beech (Fagus orientalis Lipsky) in Guilan province. Three sampling plots (one ha in each site) were selected, with each plot divided into four sub-plots of 10 ×10 m each. Soil samples were taken from the corner and center of each sub-plot. After air drying, soil properties were measured. At each plot, 10 trees were randomly selected and leaves were sampled from different expositions. The samples were transferred to the laboratory, dried at 40 ° C, ground and further used for the analysis. Nitrogen, phosphorus, calcium, magnesium, potassium, zinc, manganese and iron were measured. Analysis of variance (ANOVA) was conducted on the data. Mean comparisons were carried out by Duncan’s multiple range tests (P ≤ 0.05). Percentage of organic carbon and soil organic matters in decay stage were greater than the other stages. Furthermore, the exchangeable content of K and available P in initial stage was greater in both depths. Mineral nutrition and organic matter in soil surface was greater than soil depth. In addition, leaves analysis showed that the nitrogen in the decay stage was greater than in other stages, whereas the other elements do not notably change. Nutrient uptake was independent of the amount of nutrients in the soil. The results showed that despite differences in the amount of nutrients leaves of beech trees in various stages of evolution the range of nutrients show the health of this ecosystem. | ||
| کلیدواژه‌ها [English] | ||
| Forest ecosystem, leaf refraction, soil characteristics, Forest management, evolution steps | ||
| مراجع | ||
|
- Alizadeh, T., Salehi, A., Matinizade, M. and Taheri Abkenar, A., 2013. Alteration of dehydrogenase and urease enzymes activity and some chemical properties of soil in different development stages of beech stand (Case study: Rezvanshahr forest). Iranian Journal of Forest, 5(3): 337-347 (In Persian). - Amanzadeh, B., Khanjani Shiraz, B., Hemmati, A., Kahneh, E. and Moradi, A. 2013. Investigation and comparison of relationships between vegetation and soil properties at degraded and undisturbed forest ecosystems of beech in north of Iran (Guilan). Final Report of Research Project, Published by Research Institute of Forests and Rangelands, Tehran, 36p (In Persian). - Anonymous, 2006. Forest Management Plan of Shafarood. Published by Forests, Range and Watershed Management Organization, Tehran, 289p (In Persian). - Augusto, L., Ranger, J., Binkley, D. and Rothe, A., 2002. Impact of several common tree species of European temperate forests on soil fertility. Annals of Forest Science, 59: 233-253. - Bauer, G., Schulze, E.D. and Mund, M., 1997. Nutrient contents and concentrations in relation to growth of Picea abies and Fagus sylvatica along a European transect. Tree Physiology, 17: 777-786. - Binkley, D. and Giardina, C., 1998. Why do tree species affect soils? The warp and woof of tree- soil interactions. Biogeochemistry, 42: 89-106. - Binkley, D. and Menyailo, O., 2005. Tree Species Effects on Soils: Implications for Global Change. Springer, Netherlands, 358p. - Carter, R., 1979. Diagnosis and interpretation of forest stand nutrient status. Forest Stand Nutrient Status, 8: 90-97. - Duquesnay, A., Dupouey, J.L., Clement, A., Ulrich, E. and Le Tacon, F., 2000. Spatial and temporal variability of foliar mineral concentration in beech (Fagus sylvatica) stands in northeastern France. Tree Physiology, 20: 13-22. - Ehyaii, A. and Behbahanizade, A.A., 1994. Methods of Soil Analysis. Published by Institute of Soil & Water, Tehran, 129p (In Persian). - Emami, E., 1997. Methods of Plant Analysis. Published by Institute of Soil & Water, Tehran, 161p (In Persian). - Eslami, A. and Sagheb Talebi, Kh., 2007. Investigation on the structure of pure and mixed beech forests in north of Iran. Pajouhesh va Sazandegi in Natural Resources, 77: 39-47 (In Persian). - Flückiger, W. and Braun, S., 1998. Nitrogen deposition in Swiss forests and its possible relevance for leaf nutrient status, parasite attacks and soil acidification. Environmental Pollution, 102: 69-76. - Flückiger, W. and Braun, S., 2013. Critical Limits for Nutrient Concentrations and Ratios for Forest Trees -a comment. Published by Institute for Applied Plant Biology, Schönenbuch, Switzerland, 273-280. - Franzaring, J., Holz, I., Zipperle, J. and Angmeier, A., 2010. Twenty years of biological monitoring of element concentrations in permanent forest and grassland plots in Baden-Württemberg (SW Germany). Environmental Science and Pollution Research, 17:4-12. - Ghahraman, A. and Attar, F., 1999. Biodiversity of Plant Species in Iran (Volume 1). University of Tehran Press, Tehran, 323p (In Persian). - Habibi Kaseb, H., 1992. Fundamentals of Forest Soil Science. University of Tehran Press, Tehran, 425p (In Persian). - Korpel, S., 1982. Degree of equilibrium and dynamical changes of the forest one example of natural forests of Slowakia.Acta Facultatis Forestalis, 24: 9-30. - Rowell, D.L., 1994. Soil Science, Methods and Applications. Longman Scientific & Technical, USA, 350p. - Sabeti, H., 1994. Forests, Trees and Shrubs of Iran. Yazd University Press, Yazd, 884p (In Persian). - Sagheb Talebi, Kh. 2014. Appropriate characteristics of beech stands for application of close to nature Silviculture (selection system). Final Report of Research Project, Published by Research Institute of Forest and Rangeland, Tehran, 120p (In Persian). - Sagheb Talebi, Kh. and Schütz, J., 2002. The structure of natural oriental beech (Fagus orientalis) in the Caspian region of Iran and potential for the application of the group selection system. Forestry, 75(4): 465-472. - Staddon, W.J., Duchesne, L.C. and Trevors, J.T., 1998. Acid phosphatase, alkaline phosphatase and arylsulfatase activities in soils from a jack pine (Pinus banksiana Lamb.) ecosystem after clear-cutting, prescribed burning, and scarification. Biology and Fertility of Soils, 27(1): 1-4. - Tomasevic, M. and Anicic, M., 2010. Trace element content in urban tree leaves and sem-edax characterization of deposited particles. Facta Universitatis- Series Physics, Chemistry and Technology, 8(1): 1-13. | ||
|
آمار تعداد مشاهده مقاله: 901 تعداد دریافت فایل اصل مقاله: 558 |
||