پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 158 |
| تعداد شماره‌ها | 6,226 |
| تعداد مقالات | 67,700 |
| تعداد مشاهده مقاله | 115,008,247 |
| تعداد دریافت فایل اصل مقاله | 89,689,884 |
ارزیابی تخریب تا پایداری بوم سازگان جنگل شهری (مطالعۀ موردی: پهن برگان پارک جنگلی سرخه حصار) | ||
| نشریه محیط زیست طبیعی | ||
| مقاله 3، دوره 67، شماره 4، دی 1393، صفحه 381-390 اصل مقاله (278.55 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jne.2014.53067 | ||
| نویسندگان | ||
| سارا تیموری* 1؛ مجید مخدوم فرخنده2؛ جهانگیر فقهی3؛ نادیا عباس زاده تهرانی4 | ||
| 1دکتری جنگلداری دانشکدۀ منابع طبیعی، دانشگاه تهران | ||
| 2استاد گروه جنگلداری دانشکدۀ منابع طبیعی، دانشگاه تهران | ||
| 3دانشیار گروه جنگلداری دانشکدۀ منابع طبیعی، دانشگاه تهران | ||
| 4استادیار پژوهشگاه فضایی، سازمان فضایی ایران | ||
| چکیده | ||
| با توجه به وجود عوامل متفاوت و پیچیدگی اثرگذاری آن‌ها بر سلامت و پایداری جنگل‌های شهری، این پژوهش تلاش کرده است با تفکیک مشخصههای اثرگذار در یک اکوسیستم و تقسیمبندی اکوسیستم جنگلی دست‌کاشت سرخهحصار به واحدهای همگن از لحاظ عوامل طبیعی (شیب، جهت، ارتفاع، عمق خاک، سیستم کاشت خالص و آمیخته) و عوامل انسانی (میزان آبیاری و شدت تفرج)، اثر آن‌ها بر پایداری اکوسیستم را بررسی کند. کمّیت و کیفیت پهنبرگان پارک شامل زبان‌گنجشک، ارغوان، چنار و اقاقیا، مطالعه شد. معیارهای سنجش واحدهای همگن در این بررسی ارتفاع، رویهزمینی، قطر تاج، تقارن تاج، شادابی درختان، تراکم پوشش علفی و درجۀ تاجپوشش بودند. نتایج تحلیلها نشان داد که مجموعهای از عوامل بر سلامت و پایداری رویشگاه اثرگذار است، در‌حالی‌که که سیستم کاشت خالص و آمیخته، شیب و عمق خاک جزء فاکتورهای مهم محدود‌کننده‌‌اند. در‌حقیقت با کاهش عمق خاک و افزایش شیب و قرارگیری آن در آستانه بیشتر از 15درصد، با اختصاص عرصۀ به‌کاربری تفرج متمرکز، رویشگاه به‌شدت به سوی ناپایدار‌شدن پیش خواهد رفت. در‌عین‌حال بررسیها نشان دادند گونۀ ارغوان در شرایط مشابه، پایدارتر از سه گونۀ اقاقیا، چنار و زبان‌گنجشک عمل کرده است. | ||
| کلیدواژه‌ها | ||
| پایداری؛ پهنبرگان؛ تفرج؛ جنگل شهری؛ شادابی | ||
| عنوان مقاله [English] | ||
| Assessment of destruction through sustainability of urban forest ecosystem (Case study: Deciduous of Sorkhe Hesar forest park) | ||
| نویسندگان [English] | ||
| Sara Teimouri1؛ Majid Makhdoum Farkhondeh2؛ Jahangir Feghhi3؛ Nadiya Abbas Zade Tehrani4 | ||
| 1Ph.D in Forestry, Faculty of Natural Resources, University of Tehran | ||
| 2Professor of Forestry, Faculty of Natural Resources, University of Tehran | ||
| 3Associate prof. of Forestry, Faculty of Natural Resources, University of Tehran | ||
| 4Assistant prof. Iranian Space Agency, Space Research Institute | ||
| چکیده [English] | ||
| Due to the different factors and complexity of their effects on healthy and sustainability of urban forest, this study has been tried by means of determining effective factors in ecosystem, and dividing Sorkhe Hesar man made forest park to homogeneous units according to natural factors (slope, aspect, high, soil depth, mixture and pure planting system) and human factors (amount of irrigation and outdoor recreation intensity), has been investigated their effects on ecosystem sustainability. Deciduous quantity and quality including Fraxinus rotundifolia, Cercis siliquastrum, Platanus orientalis and Robinia pseudoacaia were studied. Evaluation criteria of homogeneous units were height, basal area, crown diameter, crown simultaneity, vitality, herbal layer density and canopy density. Analyses of results showed complexity of factors have been affected on site healthy and sustainability, while mixture and pure planting system, slope and soil depth are the most important limiting factors. In fact with decreasing the soil depth and increasing slope around more than 15 percent, site allocation to intensive recreation usage, would destroy intensely. Also, researches showed that in the similar condition Cercis siliquastrum is more sustainable than Fraxinus rotundifolia, Platanus orientalis and Robinia pseudoacaia. | ||
| کلیدواژه‌ها [English] | ||
| recreation, Urban forest, Deciduous, Sustainability, Vitality | ||
| مراجع | ||
|
- Aiba, S.; Takyu, M.& Kitayama, K. 2005. Dynamics, productivity and species richness of tropicalrainforests along elevational and edaphic gradients on Mount Kinabalu, Borneo. Ecol. Res 20, 279–286.
- Amerein, D.; Rusterholz, H.P. & Baur, B. 2005. Disturbance af suburban fagus forests by recreational activities: Effects on soil characteristics, above ground vegetation and seed bank, Applied Vegetation Science. 8(2): 175 – 182.
- Bale, C.L.; Williams, J.B. & Charley, J.L. 1998. The impact of aspect on forest structure and floristics in some Eastern Australian sites. Department of Botany, University of New England, Armidale, Australia. N.S.W. 2351.
- Brundtland. 1987. Our Common Future. Oxford University Press, New York.
- Canadian Forest Service, 1999. Forest health: context for the Canadian Forest Service’s science program.Science branch, Canadian Forest Service, Natural Resources Canada, Ottawa.
- Clark, J.R.; Matheny, N.P.; Cross, G. & V. Wake. 1997.A model of urban forest sustainability. Journal of Arboriculture 23:17-30.
- Development and improvement master plan of Sorkhehesar park, 2007, Water and Watershed research Company, Tehran Municipality, (in Persian).
- Durrant, D., & Boswell, R. 2002. Comparison of crown density assessments on trees within the stand and on ride edges within the forest. Forest Ecology and Management 157, 1-6.
- Forest Health Highlights Vermont. 2002. Vermont Department of Forests, Parks and Recreation.
- Guyette, R.P. & Stambaugh, M.C. 2004. Post-oak scare as a function of diameter, growth, and tree age, Forest Ecology and Management, 198(3): 131 – 140.
- Hammitt, W. & Cole. D. 1998. Wildland Recreation: Ecology and Management. New York: John Wiley & Sons.
- Hegetschweiler, K.T.; Loon, N.V.; Ryser, A.; Rusterholz, H.P. & Bruno, B. 2009. Effects of fireplace use on forest vegetation and amount of woody debris in suburban forests in northwestern Switzerland, Environmental Engineerng, 43(2): 299-310.
- Hill, W. & Pickering, C. M. 2009. Evaluation of Impacts and Methods for the Assessment Of Walking Tracks in Protected Areas. Sustainable Tourism Cooperative Research Centre. Griffith University, Gold Coast.
- Kuss, F.; Graefe, A. & Vaske, J. 1990. Visitor Impact Management: A Review of Research. Washington, DC: National Parks and Conservation Association.
- Leung, Y. F., & Marion, J.L. 2000. Recreation impacts and management in wilderness. USDA Forest Service, Intermountain Research Station, Ogden, UT, pp. 23–48.
- Makhdoum, M. F. & Khorasani, N. 1985. A Comparison of environmental impacts of logging and recreation in Northern caspian Ecosystem, Department of Natural Resources, Tehran University, (in Persian).
- Makhdoum, M. F. 2006. Estimating carrying capacity, PhD course booklet, (in Persian).
- Marvie Mohadjer, M. R. 2006. Silviculture, Tehran University Press.387 p, (in Persian).
- Miller, G. T. 1996. Living in the environment, Translated by M. F. Makhdoum. Tehran University Press. 351 p, (in Persian).
- Pickering, C. M.; Hill, W.; Newsome, D. & Leung, Y.F. 2009. Comparing hiking, mountain biking and horse riding impacts on vegetation and soils in Australia and the United States of America. Journal of Environmental Management 91. 2010. 551–562.
- Rusterholz., H.P.; Kissling, M. & Baur, B. 2009. Disturbance by human trampling alter the performance. Seual reproduction and genetic diversity in a clonal woodland herb, Persepectives in plant ecology, Evolution and Systemayics, 8(2): 109 – 116.
- Sorkhehesar Park officials, 2012. Personal correspondence, (in Persian).
- Somanathan, E.; Prabhakar, R. & Bhupendra S. M. 2005. Does Decentralization Work? Forest Conservation in the Himalayas BREAD Working Paper No. 096, June 2005, p: 40
- Wheal, M. 2006. A new tree health index for floodplain eucalypts and its potential for identification of tree decline and recovery following artificial flooding, A report prepared for the Mallee Catchment Management Authority. Report No. 1
- Zobeiri, M. & Makhdoum, M. F. 2012. Personal correspondence, (in Persian). | ||
|
آمار تعداد مشاهده مقاله: 2,754 تعداد دریافت فایل اصل مقاله: 1,269 |
||