کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6408193 | 1629432 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Geological control of soil organic carbon and nitrogen stocks at the landscape scale
ترجمه فارسی عنوان
کنترل زمین شناسی کربن آلی کربن و نیتروژن در مقیاس چشم انداز
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کلمات کلیدی
ذخایر کربن آلی خاک، تغییر کاربری زمین، زمین شناسی، مواد مادرانه، سنگ شناسی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
چکیده انگلیسی
While SOC concentration was significantly correlated to soil clay concentration for both cropland (r2 = 0.36, p < 0.001) and forest (r2 = 0.44, p < 0.001), there was no significant relation between SOC stocks and soil clay stocks for forest soil (p = 0.11) and a significant but highly scattered positive correlation between SOC and clay stocks in cropland soils (r2 = 0.20, p = 0.02). No significant relation between pH or CaCO3 and SOC stocks was observed. Our results therefore revealed that soil parent material can significantly influence topsoil (0-30 cm) organic C and N stocks but that more research is needed to understand how soil parent material influences SOM stocks as it cannot be simply explained by basic soil physico-chemical parameters (clay and carbonate concentrations or stocks, pH). Overall, our results suggest that a good knowledge of the geology is needed to better constrain SOC stocks as well as SOC stocks evolution in a changing environment from landscape to global scale.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geoderma - Volume 285, 1 January 2017, Pages 50-56
Journal: Geoderma - Volume 285, 1 January 2017, Pages 50-56
نویسندگان
Pierre Barré, Hermine Durand, Claire Chenu, Patrick Meunier, David Montagne, Géraldine Castel, Daniel Billiou, Laure Soucémarianadin, Lauric Cécillon,