This title appears in the Scientific Report :
2012
Please use the identifier:
http://dx.doi.org/10.1016/j.envpol.2011.12.001 in citations.
Nitrate leaching, direct and indirect nitrous oxide fluxes from sloping cropland in the purple soil area, southwestern China
Nitrate leaching, direct and indirect nitrous oxide fluxes from sloping cropland in the purple soil area, southwestern China
This study provides a combined dataset on N loss pathways and fluxes from sloping cropland in the purple soil area, southwestern China. A lysimeter experiment was conducted to quantify nitrate leaching (May 2004-May 2010) and N(2)O emission (May 2009-May 2010) losses. Nitrate leaching was the domina...
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Personal Name(s): | Zhou, M. |
---|---|
Zhu, B. / Butterbach-Bahl, K. / Wang, T. / Bergmann, J. / Brüggemann, N. / Wang, Z. / Li, T. / Kuang, F. | |
Contributing Institute: |
Agrosphäre; IBG-3 |
Published in: | Environmental pollution, 162 (2012) S. 361 - 368 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2012
|
Physical Description: |
361 - 368 |
PubMed ID: |
22243886 |
DOI: |
10.1016/j.envpol.2011.12.001 |
Document Type: |
Journal Article |
Research Program: |
Terrestrische Umwelt |
Series Title: |
Environmental Pollution
162 |
Subject (ZB): | |
Publikationsportal JuSER |
This study provides a combined dataset on N loss pathways and fluxes from sloping cropland in the purple soil area, southwestern China. A lysimeter experiment was conducted to quantify nitrate leaching (May 2004-May 2010) and N(2)O emission (May 2009-May 2010) losses. Nitrate leaching was the dominant N loss pathway and annual leaching fluxes ranged from 19.2 to 53.4 kg N ha(-1), with significant differences between individual observation years (P < 0.05). Direct N(2)O emissions due to N fertilizer use were 1.72 ± 0.34 kg N ha(-1) yr(-1), which corresponds to an emission factor of 0.58 ± 0.12%. However, indirect N(2)O emissions caused by nitrate leaching and surface runoff N losses, may contribute another 0.15-0.42 kg N ha(-1) yr(-1). Our study shows that nitrate leaching lowered direct N(2)O emissions, highlighting the importance for a better understanding of the tradeoff between direct and indirect N(2)O emissions for the development of meaningful N(2)O emission strategies. |