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اثر آتشسوزی بر خصوصیات کمی پوششهای گیاهی و تعیین گونههای مقاوم به آتش در مراتع مشجر (مطالعه موردی مرتع کرماک شهرستان رودبار گیلان) | ||
| تحقیقات حمایت و حفاظت جنگلها و مراتع ایران | ||
| مقاله 5، دوره 19، شماره 2 - شماره پیاپی 38، بهمن 1400، صفحه 251-265 اصل مقاله (878.83 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijfrpr.2021.353867.1470 | ||
| نویسندگان | ||
| امین املشی* 1؛ ایوب مرادی2؛ مسعود علیدوست3 | ||
| 1استادیار پژوهش، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی گیلان، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران. | ||
| 2دانشآموخته دکتری، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی گیلان، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران | ||
| 3کارشناس ارشد پژوهش، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی گیلان، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران | ||
| چکیده | ||
| آتشسوزی یکی از عوامل شایع در اختلال و تغییر در بسیاری از زیستبومها است و میتواند ترکیب گونهها را تحت تأثیر قرار دهد. مراتع ازجمله عرصههای طبیعی هستند که هرساله در سرتاسر جهان دستخوش آتشسوزی میشوند. تحقیق حاضر در نظر دارد با شناخت شدت آتشسوزری، تأثیر آن را روی پوشش گیاهی مراتع مشجر مورد مطالعه قرار دهد. مرتع کرماک که طی سالهای اخیر یکی از وسیعترین آتشسوزیهای مرتعی گیلان در آن رخ داده است برای این منظور انتخاب شد. آماربرداری به شکل تصادفی – سیستماتیک با انتخاب 4 ترانسکت و 40 قطعه نمونه به تفکیک در هر یک از دو قطعه آتشسوزی شده و شاهد اجرا شد. خصوصیات موردمطالعه شامل مقدار تولید، تراکم و تاج پوشش در هر قطعه نمونهبرداری اندازهگیری گردید. پس از تجزیهوتحلیل دادهها، نتایج حاصله نشان داد که آتشسوزی منطقه تابع مدل سوخت GR1 و از نوع سبک و گذرا است. نتایج همچنین ضمن اثر کوتاه مدت آتش بر صفات موردمطالعه مشخص نمود که گونههایی چون Trachynia distachya، Arenaria serpyllifolia از جمله گونه های مقاوم و گونههای Ziziphora capitata، Vinca herbacea از گونههای حساس به آتش-سوزی در مرتع کرماک هستند. | ||
| کلیدواژهها | ||
| آتشسوزی؛ مرتع؛ گونه حساس؛ گونه مقاوم؛ تخریب | ||
| عنوان مقاله [English] | ||
| Effect of fire on quantitative characteristics of vegetation and determination of fire resistant species in wooded rangelands (Case study of Karmak rangeland in Rudbar, Guilan) | ||
| نویسندگان [English] | ||
| Masoud Amin Amlashi1؛ Aioub Moradi2؛ Masood Alidoust3 | ||
| 1Guilan Agricultural and Natural Resources Research Center, Agriculture Research, Education and Extension Organization(AREEO), Rasht, Iran | ||
| 2Guilan Agricultural and Natural Resources Research Center, Agriculture Research, Education and Extension Organization(AREEO), Rasht, Iran. | ||
| 3Guilan Agricultural and Natural Resources Research Center, Agriculture Research, Education and Extension Organization(AREEO), Rasht, Iran | ||
| چکیده [English] | ||
| Fires can be a common cause of disruption and change in many ecosystems, and can affect species composition. Pastures are one of the areas that catch fire every year around the world. The present study intends to study the effect of fire on the vegetation of wooded pastures by recognizing the severity of fire. Kermak rangelands, where one of the largest fires occurred in Guilan in recent years, was selected for this purpose. Random-systematic inventory measurement was performed by selecting 4 transects and 40 sample plots separately in each of the fire and non-fire area. The studied characteristics including production amount, density and canopy in each sampling plot were measured. After analyzing the data, the results showed that the Surface fire was a function of the GR1 fuel model and this fire was light and transient. The results also showed the short-term effect of fire on the studied traits that species such as Trachynia distachya، Arenaria serpyllifoliaand Including are resistant species and species of Ziziphora capitata، Vinca herbacea are fire sensitive species in Karmak rangeland. | ||
| کلیدواژهها [English] | ||
| Fire, Rangelands, Resistanse species, Tolerance species, Degradation | ||
| مراجع | ||
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