کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4438800 1620417 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Monoterpene emissions from an understory species, Pteridium aquilinum
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
پیش نمایش صفحه اول مقاله
Monoterpene emissions from an understory species, Pteridium aquilinum
چکیده انگلیسی

Monoterpene emissions from the dominant understory species Pteridium aquilinum (Bracken fern) in a mixed temperate forest were measured in the field during the summers of 2006, 2007 and 2008. The results showed that Bracken fern emitted monoterpenes at different rates depending if the plants were located in the understory or in open areas. Understory plants emitted monoterpene levels ranging from 0.002 to 13 μgC gdw−1 h−1. Open area plants emitted monoterpene levels ranging from 0.005 to 2.21 μgC gdw−1 h−1. During the summer of 2008 greenhouse studies were performed to complement the field studies. Only 3% of the greenhouse Bracken fern plants emitted substantial amounts of monoterpenes. The average emission, 0.15 μgC gdw−1 h−1 ± 0.9 μgC gdw−1 h−1, was much lower than that observed in the field. The factors controlling monoterpene emissions are not clear, but this study provides evidence of the potential importance of understory vegetation to ecosystem total hydrocarbon emissions and emphasizes the need for longer-term field studies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Environment - Volume 54, July 2012, Pages 308–312
نویسندگان
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