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تاثیر تفرج بر زادآوری، پوشش علفی و خاک (مطالعه موردی: پارک جنگلی نور) | ||
| نشریه جنگل و فرآورده های چوب | ||
| مقاله 2، دوره 65، شماره 3، مهر 1391، صفحه 271-283 اصل مقاله (309.01 K) | ||
| شناسه دیجیتال (DOI): 10.22059/jfwp.2012.30079 | ||
| نویسندگان | ||
| حمید بخشی1؛ منوچهر نمیرانیان2؛ مجید مخدوم3؛ قوام‌الدین زاهدی امیری3 | ||
| 1دانشجوی کارشناسی‌ارشد جنگلداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران | ||
| 2استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران | ||
| 3دانشیار دانشکده منابع طبیعی، دانشگاه تهران، ایران | ||
| چکیده | ||
| گردشگری در بسیاری از نواحی طبیعی جهان به‌عنوان یک استراتژی توسعه مطرح بوده و اکوتوریسم به‌طور ویژه به‌عنوان یک گزینه مناسب برای رسیدن به توسعه پایدار می‌باشد. در نتیجه ضروری‌ست اثرات گسترده بخش اکوتوریسم بر روی منابع طبیعی مطالعه شود. این مطالعه به بررسی اثرات تفرج در 4 منطقه تفرج متمرکز، تفرج گسترده، منطقه قرق شده بعد از تفرج متمرکز و منطقه شاهد در پارک جنگلی نور می‌پردازد. در هر منطقه درصد پوشش علفی، تعداد زادآوری، وزن مخصوص ظاهری و درصد تخلخل در دو عمق سطحی و زیری و همچنین میزان ماده‌آلی خاک اندازه‌گیری گردید. نتایج نشان داد شدت تفرج بر درصد پوشش علفی، مقدار زادآوری، میزان کوبیدگی و تخلخل در عمق cm5-0 خاک موثر است ولی بر روی مقدار ماده آلی خاک تاثیر ندارد. در منطقه تفرج متمرکز مقدار کوبیدگی خاک در عمق cm5-0 افزایش و میزان تخلخل نسبت به منطقه شاهد کاهش یافته بود. منطقه تفرج متمرکز، درصد پوشش علفی و زادآوری بسیار کمی نسبت به منطقه شاهد داشت که حاکی از تخریب حاصل از تفرج شدید می‌باشد.نتایج بررسی نشان دهنده تاثیر کم تفرج گسترده می‌باشد. درصد پوشش علفی در منطقه قرق به کندی در حال افزایش بود، ولی میزان زادآوری آن از سایر مناطق بیشتر است. وزن مخصوص ظاهری خاک منطقه قرق نیز با منطقه شاهد تفاوت معنی داری نداشت که می‌تواند بیانگر بازگشت حالت منطقه تفرج شدید بعد از قرق به حالت جنگل طبیعی باشد. با توجه به نتایج کلی می‌توان با ایجاد چند منطقه تفرج متمرکز و قرق دوره‌ای آنها مانع تخریب بیش | ||
| کلیدواژه‌ها | ||
| اثرات تفرج؛ پارک جنگلی نور؛ پوشش علفی؛ زادآوری؛ کوبیدگی | ||
| عنوان مقاله [English] | ||
| The impact of recreation on regeneration, herbaceous cover and soil quality (A case study: Nour forest park) | ||
| نویسندگان [English] | ||
| x x1؛ xx xx2؛ x xxx3؛ ss sss3 | ||
| چکیده [English] | ||
| Tourism is considered in many natural regions of world as a development strategy and specifically ecotourism is a suitable option for achieving sustainable development. Therefore it is necessary to identify widespread effects of ecotourism on the natural resource. This study assessed the effect of recreation in four regions including intensive recreation, extensive recreation, grazed after intensive recreation and control region in Nour Forest Park. In each region herbaceous cover, regeneration rate, bulk density and soil porosity in surface and subsurface as well as organic matter were measured. The results showed that intensity of recreation is effective on the amount of herbaceous cover, the amount of regeneration, the amount of compaction and the porosity in 0-5 cm soil depth but had no impact on the amount of soil organic matter. In the intensive recreation region the amount of soil compaction in 0-5 cm and the porosity were increased and decreased respectively in comparison with the control region. Intensive recreation region had very low herbaceous cover and regeneration compared to the control region which is the results of damage of intensive recreation. The result showed that a extensive recreation has low impact.. Herbaceous cover was slowly rising in grazed region but regeneration is more than other regions. Soil bulk density in grazed region was not significantly different compared to the control region that can indicate the recovery of intensive recreation region to natural forest condition. The results suggest that determining some intensive recreation region and periodic fencing them is a may preven | ||
| کلیدواژه‌ها [English] | ||
| Compaction, herbaceous cover, Nour forest park, recreation effects, Regeneration | ||
| مراجع | ||
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