کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5162209 | 1502265 | 2016 | 53 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The fate of plant wax lipids in a model forest ecosystem under elevated CO2 concentration and increased nitrogen deposition
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The n-alkane distribution patterns of spruce needles and root biomass were well reflected in those of particulate soil OM. Long chain (C27-34) n-alkanes were preserved in soil by association with soil minerals, while mid-chain (C20-27) n-alkanes from plant biomass and particulate soil OM were ultimately degraded due to lack of physical protection. Renewal of n-alkanes was lower in roots and spruce needles than in beech leaves. Similar low renewal of n-alkanes in soil reflected the low input of n-alkanes from plant biomass to the soil n-alkane pool. n-Alkane biosynthesis in beech leaves was modified under high N deposition and similar effects were observed for n-alkanes in mineral soil fractions and bulk soil. Here, different biosynthesis of n-alkanes in beech leaves under high N deposition consequently led to a modified input of n-alkanes from plant biomass to soil, with a relatively low proportion of new (experimentally-derived) n-alkanes bound to soil minerals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Geochemistry - Volume 98, August 2016, Pages 131-140
Journal: Organic Geochemistry - Volume 98, August 2016, Pages 131-140
نویسندگان
Marco Griepentrog, Samuel Bodé, Pascal Boeckx, Guido L.B. Wiesenberg,