کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4573370 | 1629475 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Charcoal re-combustion efficiency in tropical savannas
ترجمه فارسی عنوان
راندمان احتراق مجدد ذغال چوب در سالن های گرمسیری
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کلمات کلیدی
ساوانا، آتش، بوش فیر، زغال چوبی، کربن سیاه، احتراق
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
چکیده انگلیسی
Although temperature profiles for each burn indicated that the conditions for potential combustion of the charcoal were met, out of the 264 charcoal pieces being monitored only five were totally combusted. Charcoal mass losses were independent of particle size, and averaged less than 8%. The results suggest that turnover times for charcoal in tropical savannas as a result of re-combustion alone are on the order of one century. The comparatively long turnover time ascertained under experimental conditions designed to maximize charcoal re-burning potential shows that re-combustion is not an efficient sink for pyrogenic carbon in tropical savannas. This finding strongly suggests that other processes must play a more substantial role in the re-mineralization of charcoal in order to balance the PC budget in these ecosystems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geoderma - Volumes 219â220, May 2014, Pages 40-45
Journal: Geoderma - Volumes 219â220, May 2014, Pages 40-45
نویسندگان
Gustavo Saiz, Iain Goodrick, Christopher M. Wurster, Michael Zimmermann, Paul N. Nelson, Michael I. Bird,