تعیین ارزش خالص فعلی ترسیب کربن در جنگل‌کاری صنوبر (Populus deltoides)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار پژوهشکده محیط‌زیست جهاددانشگاهی، رشت، ایران

2 استاد گروه جنگلداری، دانشکده منابع‌طبیعی، دانشگاه گیلان، صومعه‌سرا، ایران

3 دانشیار گروه جنگلداری، دانشکده منابع‌طبیعی، دانشگاه گیلان، صومعه‌سرا، ایران

چکیده

افزایش ذخیره کربن در جنگل یکی از اهداف مدیریت پایدار در سال‌‌های اخیر است و به‌عنوان ابزاری مهم در کاهش اثرات تغییر اقلیم شناخته ‌شده ‌‌است. تجارت کربن به‌‌عنوان یکی از ابزارهای مبتنی بر بازار، روشی مقرون به‌‌صرفه و مناسب برای کاهش اثرات تغییر اقلیم و موضوعات محیط زیستی می‌باشد. هدف از این تحقیق، تعیین ارزش اقتصادی کربن در جنگل‌کاری صنوبر است. به‌‌این منظور، میزان کربن در جنگل‌کاری صنوبر (Populus deltoides) اندازه‌‌گیری و قیمت تعدیل شده کربن با استفاده از مدل رگرسیون خود-کاهشی نامانا تعیین شد. ارزش خالص فعلی کربن به‌‌دست آمد و در نهایت آنالیز حساسیت‌‌پذیری قیمت و نرخ سود کربن انجام شد. نتایج نشان داد موجودی جنگل‌کاری در سن 36 سالگی 2/180 متر مکعب در هکتار (معادل 6/57 تن در هکتار) و میزان کربن در همان سن 2/32 تن در هکتار بود. میزان ارزش خالص فعلی در سنین مختلف به‌‌دست آمد و آنالیز حساسیت‌‌پذیری قیمت و نرخ سود کربن نشان داد که میزان ارزش خالص فعلی با افزایش قیمت و نرخ سود، افزایش می‌‌یابد.

کلیدواژه‌ها


عنوان مقاله [English]

Determination of Net Present Value of Carbon Sequestration in Populus deltoides Plantation

نویسندگان [English]

  • Tooba Abedi 1
  • Soleiman Mohammadi Limaei 2
  • Amir Eslam Bonyad 2
  • Javad Torkaman 3
1 Assist. Profe. Academic Center for Education, Culture and Research, Environmental Research Institute
2 Profe. Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
3 Assoc. Profe. Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
چکیده [English]

Increasing carbon storage in forests is the goal of sustainable management, in recent years, it has been recognized as one of the important tools in mitigating the impact of climate change. Carbon trading is one of the market-based tools as a cost-effective and convenient way to climate change and environmental issues. The aim of this study is to determine the economic value of carbon in poplar plantation. Carbon content was measured in the plantation of Populus deltoides and adjusted carbon price was determined using the non-stationary regression model. Net present value of carbon was calculated and finally sensitivity analysis of price and carbon interest rate were performed. Results show the plantation stock was 180.2 m3/ha (57.6 t/ha) and carbon content was 32.2 t/ha at age 36 years. Net Present Value calculated at different ages and the sensitivity analysis showed that the net present value increased with increasing price and interest rate.
 
 

کلیدواژه‌ها [English]

  • Net Present Value
  • Carbon sequestration
  • Populus deltoides
  • Adjusted carbon price
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