Factors controlling the export of nitrogen from agricultural land in a large central European catchment during 19002010

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F13%3A00394494" target="_blank" >RIV/60077344:_____/13:00394494 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/es400181m" target="_blank" >http://dx.doi.org/10.1021/es400181m</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/es400181m" target="_blank" >10.1021/es400181m</a>

Result language
angličtina
Original language name
Factors controlling the export of nitrogen from agricultural land in a large central European catchment during 19002010
Original language description
Using an empirical model, we quantified the nitrogen (N) export from agricultural land in a large central European catchment (upper Vltava river, Czech Republic, about 13 000 km2) over the 19592010 period. The catchment witnessed a rapid socio-economic shift from a planned to a market economy in the 1990s, resulting in an abrupt 50% reduction in N fertilization rates at otherwise relatively stable land-use practices. This large-scale experiment enabled disentangling and quantification of individual effects of N fertilization and drainage on N leaching. The model is based on a two-step regression between annual N export and three independent variables: (i) annual average discharge in the first step and (ii) net anthropogenic nitrogen inputs (NANI) and proportion of drained agricultural land in the second step. Results show that N export was more related to mineralization of soil organic N pools due to drainage and tillage than to external N sources (NANI). The model, together with other
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DJ - Pollution and water control
OECD FORD branch
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Project
<a href="/en/project/GAP504%2F12%2F1218" target="_blank" >GAP504/12/1218: The effect of natural dieback of mountain spruce forest on microclimate, chemistry, and biodiversity of terrestrial and aquatic ecosystems.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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