تغییرات ذخایرکربن خشک‌دارهای بلوط ایرانی در ارتباط با عوامل فیزیوگرافی جنگل‌های زاگرس

نوع مقاله : علمی - پژوهشی

نویسندگان

1 دانشجوی دکتری جنگلداری، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، مازندران، ایران

2 استاد، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، مازندران، ایران

3 استادیار، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان مازندران، سازمان تحقیقات، آموزش و ترویج ‏کشاورزی، ساری، ایران

چکیده

این پژوهش با هدف بررسی تغییرات مقدار ذخیره­کربن خشک­دار درختان بلوط ایرانی در ارتباط با عوامل فیزیوگرافی در رویشگاه جنگلی قلاجه واقع در استان کرمانشاه انجام شد. بدین منظور، محدوده­ای از جنگل­ قلاجه با دامنه ارتفاعی 2100-1400 متر از سطح دریا انتخاب، و منطقه به هفت طبقه ارتفاعی با اختلاف 100 متر تقسیم­بندی شد. سپس در سطح هر طبقه ارتفاعی برای برآورد مقدار ذخایر کربن انواع خشک­دار (سرپا و افتاده)، قطعات نمونه­ یک هکتاری با سه تکرار پیاده­سازی شدند. در هر قطعه نمونه ضمن مشخص کردن شیب و جهت، علاوه بر اندازه­گیری­های کمی در راستای هدف پژوهش در رابطه با خشک­دارهای سرپا، خط نمونه­ها به‌طور موازی و با فاصله مناسب از یکدیگر برای بررسی و اندازه­گیری­ کمی خشک­دارهای افتاده که قطر آن­ها بزرگ­تر یا مساوی دو سانتی­متر بود، پیاده شدند. نتایج آزمون همبستگی پیرسون نشان داد که بین مقدار ذخیره­کربن خشک­دار سرپا و افتاده با عامل ارتفاع از سطح دریا همبستگی معنی­دار منفی وجود دارد. همچنین نتایج آنالیز واریانس نشان داد که تغییرات ذخیره­کربن خشک­دار درختان بلوط ایرانی در واحدهای مختلف فیزیوگرافی دارای اختلاف معنی­دار نیستند که نشان می­دهد تغییرات ذخیره­کربن خشک­دار درختان بلوط ایرانی در منطقه مورد پژوهش مستقل از تأثیرات عوامل فیزیوگرافی است.

کلیدواژه‌ها


عنوان مقاله [English]

Changes in carbon storage of Quercus brantii Lindl in relation to physiographic factors ‎of Zagros forests

نویسندگان [English]

  • Ali Sarvazad 1
  • Asghar Fallah 2
  • Ali Asghar Vahedi 3
1 Ph.D Student of Forestry, Faculty of Natural Resources, Sari Agriculture Science and Natural Resources ‎University, Sari, I. R. Iran‎
2 Professor, Department of Forestry, Faculty of Natural Resources, Sari Agriculture Science and Natural ‎Resources University, Sari, I. R. Iran
3 Assistant Professor, Natural resources Research Department, Mazandaran Agricultural and Natural ‎Resources Research and ‎Education Center, AREEO, Sari, I. R. Iran‎
چکیده [English]

The aim of this study was to investigate the changes in the amount of dead wood carbon storage of Quercus brantii Lindl in relation to physiographic factors in Qalajeh forest of Kermanshah province. For this purpose, an area of ​​Qalajeh forest with an altitude range of 1400-2100 meters above sea level was selected, and the area was divided into seven elevation classes with a difference of 100 meters. Then, at the level of each elevation class, one-hectare sample plots with three replications were implemented to estimate the amount of standing and fallen dead wood carbon storage. In each sample plot, while specifying the slope and direction, in addition to quantitative measurements in line with the research goal in relation to standing dead wood, the sample line in parallel and at a suitable distance from each other to check and measure the fallen dead wood whose diameter was greater than or equal to 2 cm for Necessary measurements were implemented. The results of Pearson correlation test showed that there is a significant negative correlation between the amount of standing and fallen dead wood carbon storage with the altitude factor. Also, the results of analysis of variance showed that the changes in dead wood carbon storage of Quercus brantii Lindl in different physiographic units did not have a significant difference, which shows that the changes in dead wood carbon storage of Quercus brantii Lindl trees in the study area are independent of the Physiographic factors effects.

کلیدواژه‌ها [English]

  • Fallen dead wood
  • Standing dead wood
  • Qalajeh
  • Elevation gradient
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