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a r t i c l e i n f o s of atmospheric N vide a better under-nfluence gaseous N. All rights reserved. temperatures and soil moisture, but during the growing season the availability of soil nutrients (principally nitrogen (N) and ing plant growth; Jonasson et al., depth and topography across arctic l...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.700.3364 http://post.queensu.ca/%7Egroganp/Stewart%20et%20al%20Topography%20as%20key%20factor%20driving%20tundra%20N%20cycling%20Soil%20Biol%20and%20Biochem%202014.pdf |
| Summary: | a r t i c l e i n f o s of atmospheric N vide a better under-nfluence gaseous N. All rights reserved. temperatures and soil moisture, but during the growing season the availability of soil nutrients (principally nitrogen (N) and ing plant growth; Jonasson et al., depth and topography across arctic landscapes leading to variation in total N, NH4þ, NO3 and NO2 and PO43 (Giblin et al., 1991; Paré and Bedard-Haughn, 2012). Variation in soil nitrogen availability is a key determinant of plant community structure (McKane et al., 2002). Different vegetation communities, in turn, give rise to dif-ferences in greenhouse gas emissions (including N2O) through their influence on soil microbial processes (Stewart et al., 2012a; Brummell et al., 2012). Arctic ecosystems appear to be more |
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