نشریه محیط زیست طبیعی

تأثیر گونه‌های درختی بر ذخیره کربن در زیست‌توده و خاک؛ مطالعة پارک جنگلی توس نوذر، سنندج

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه کردستان، سنندج، ایران

2 گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه کردستان، سنندج، ایران

3 کارشناس محیط زیست، شرکت محیط زیست ESG، ملبورن، استرالیا

4 گروه جنگل‌داری، دانشکده منابع طبیعی، دانشگاه کردستان، سنندج، ایران

چکیده

فضاهای سبز شهری، به‌ویژه درختان، پتانسیل زیادی برای جذب کربن از جو و کاهش اثرات تغییرات آب و هوایی در شهرها دارند. هدف از پژوهش حاضر برآورد تجمع کربن در گونه ­های درختی اقاقیا، سرو سیمین، زبان گنجشک و شبه ­سرو در پارک جنگلی توس نوذر سنندج بود. به‌‌‌همین منظور نوع گونه‌ها، ارتفاع و قطر برابر سینه برای کلیة درختان موجود در پلات­‌های دائمی، جهت تعیین کربن زیست‌تودة درختی سطح و زیر سطح زمین ثبت گردید و برآورد ذخیره‌­سازی کربن با استفاده از معادلات آلومتریک انجام شد. نتایج نشان داد، که میزان ذخیره کربن در پارک جنگلی توس نوذر در مجموع، 113/68 تن در هکتار است. بررسی تراکم کل کربن ذخیره‌‌‌شده نشان داد، بیشترین مقدار کربن در خاک و کمترین آن در لاشبرگ­ ها و پوشش علفی پارک جنگلی توس نوذر ذخیره شده است. نتایج بر تأثیر نوع گونة درختان در میزان تجمع کربن تأکید دارد. گونة سرو سیمین، قابلیت بیشتری نسبت به گونه‌‌های دیگر در ذخیره‌‌سازی کربن دارد. با شناخت گونه­ هایی که قابلیت بیشتری برای ذخیرة کربن دارند و نیز بررسی عوامل مدیریتی که بر فرآیند ذخیره کربن تأثیرگذار هستند، می­ توان اصلاح و احیاء جنگل­ های شهری را از منظر شاخص ترسیب کربن دنبال نمود. نتایج این پژوهش ارزش درختان شهری را نه تنها به‌عنوان اراضی زینتی و زیبایی ­شناختی بلکه در کاهش اثرات تغییرات آب و هوایی در سطح محلی آشکار می ­کند.

کلیدواژه‌ها

عنوان مقاله [English]

The effect of tree species on carbon storage in biomass and soil; Study of Toos Nozar forest park, Sanandaj

نویسندگان [English]

  • Mahin Saedpanah 1
  • Hamed Ghaderzadeh 2
  • Marzieh Reisi 3
  • Ayoob Moradi 4

1 Department of Environmental Science, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran

2 Department of Agricultural Economics, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran

3 Environmental Scientist, ESG Environmental, Melbourne, Australia

4 Department of Forestry, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran

چکیده [English]

Urban green spaces, particularly trees, have great potential to sequester carbon from the atmosphere and mitigate the impacts of climate change in cities. The aim of this study was to estimate the carbon accumulation in the biomass and soil of Robinia, Cupressus, Fraxinus and Chamaecyparis tree species in Toos Nozar forest park in Sanandaj. For this purpose, the type of species, height and diameter equal to the chest for total trees in the permanent plots were recorded to determine the carbon biomass of the tree above and below ground and estimates of carbon storage were performed using allometric equations. The results showed that the total carbon storage in Toos Nozar forest park is 113.68 tons per hectare. Examination of the total density of stored carbon showed that the highest amount of carbon was stored in the soil and the lowest in the litter and grass cover of Toos Nozar forest park. The results emphasize the effect of tree species on carbon sequestration. Cupressus is more potent than other species in carbon storage. By recognizing the species that have more potential for carbon storage and also examining the management factors that affect the carbon storage process, it is possible to follow the improvement and rehabilitation of urban forests from the perspective of carbon sequestration index. The results of this study reveal the value of urban trees not only as ornamental and aesthetic lands but also in reducing the effects of climate change at the local level.

کلیدواژه‌ها [English]

  • Species Diversity
  • Biomass
  • Carbon Storage
  • Urban Forest
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نشریه محیط زیست طبیعی
دوره 75، شماره 3 - شماره پیاپی 3
شهریور 1401
صفحه 527-538