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درباره وبلاگ



مدیر وبلاگ :علی امیدی
مطالب اخیر
نویسندگان
روشهای مدلسازی برنامه ریزی تبدیل جنگل با رویکرد منطبق بهم شبیه سازی-بهینه سازی و با تلفیق همزمان ارزشهای چوب،ترسیب کربن و تنوع زیستی

رسول یوسف پور*(دپارتمان جنگلداری و اقتصاد جنگل،ALU فرایبورگ،آلمان)

 مارک هانه وینکل (Forstliche Versuchs-und Forschungsanstalt، فرایبورگ،آلمان)

ترجمه:علی امیدی

خلاصه:


این مقاله یک رویکرد ترکیبی شبیه سازی-بهینه سازی برای مدل برنامه ریزی تبدیل جنگل با در نظر گرفتن ارزشهای چوب، کربن و تنوع زیستی را ارائه می نماید.توسعه جنگل با کلاسه های سنی مجازی بوسیله نرم افزار رویش جنگل(TreeGross) پیش بینی شد. اثرات رژیم های متفاوت تبدیل جنگل با متغیرهای معرف مقررات(دخالت های) جنگل شناسی برای یک دوره تبدیلی40سال در سطح توده تحت نظر قرار گرفت.برنامه ریزی خطی پویا بمنظور حل مسئله بهینه سازی در مقیاس وسیع در چند پریود از یک محیط واحد سرمایه گذاری جنگل با کلاسه سنی مختلف توده های نوئل نروژ (Picea abies L.Kairst) بکار گرفته شد.

ارزش خالص فعلی کل تنوع زیستی،ترسیب کربن و تولید چوب با محدودیت جریان چوب، بطور همزمان در نظر گرفته شد.مسیر جنگل شناسی بهینه بدست آمده نه تنها در میان توده های مختلف ،بلکه گاهی اوقات در داخل یک توده نیز تفاوت را نشان داد.

تلفیق سوددهی تنوع زیستی در روند بهینه سازی، یک نوع استراتژی سودده یا مطلوب است که استقرار زادآوری راش در همه توده ها را پیش بینی می کند.منظور نمودن همزمان همه فایده های مذکور در سوددهی نهایی 27451 یورو در هکتار شامل14499(53%)ارزش چوب، 3412(12%) ارزش ترسیب کربن،764 (3%) ارزش تنوع زیستی و 8777(32%) یورو در هکتار ارزش چوب سرپا را نتیجه داد.

آنالیز حساسیت نشان میدهد که حد آستانه ای که هیچ تغییر اساسی در غالب پارامترهای جنگلشناسی رخ نمی دهد در قیمت کربن 30یورو در تن با نرخ بهره 2درصد می باشد.





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جمعه 23 بهمن 1394
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