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| Content Provider | Springer Nature Link |
|---|---|
| Author | Li, Yong Chen, Deli Barker Reid, Fiona Eckard, Richard |
| Copyright Year | 2008 |
| Abstract | The Water and Nitrogen Management model (WNMM) was applied to simulate N$_{2}$O emissions from a rain-fed wheat cropping system on a loam-textured soil for two treatments, conventional cultivation with residue burn (CC + BURN + N) and direct drill with residue retention (DD + RET + N), at Rutherglen in southeastern Australia from January 2004 to March 2005. Both treatments received the same amount of nitrogen (N) fertiliser. The WNMM satisfactorily simulated the soil water content, mineral N contents and N$_{2}$O emissions from the soil, as compared with the field observations for both treatments. The simulated nitrification-induced N$_{2}$O emissions accounted for 45% and 34% of total N$_{2}$O emissions for the treatments CC + BURN + N and DD + RET + N, respectively. The calibrated WNMM was used to simulate N$_{2}$O emissions from this soil using historic daily weather data from 1968 to 2004 and applying seven scenarios of fertiliser N application. Correlation analysis found that the annual N$_{2}$O emissions for this rain-fed wheat cropping system were significantly correlated to the annual average of daily maximum air temperature (r = 0.51 for CC + BURN + N and 0.56 for DD + RET + N), annual rainfall (r = −0.56 for CC + BURN + N and −0.59 for DD + RET + N) and fertiliser N application rate (r = 0.43 for CC + BURN + N and 0.31 for DD + RET + N). Based on the 37-year historic simulations, multivariate regression models for estimating annual N$_{2}$O emissions were developed to account for climatic variation, and explained about 50% of variations of annual N$_{2}$O emissions estimated by WNMM. |
| Starting Page | 239 |
| Ending Page | 251 |
| Page Count | 13 |
| File Format | |
| ISSN | 0032079X |
| Journal | Plant and Soil |
| Volume Number | 309 |
| Issue Number | 1-2 |
| e-ISSN | 15735036 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2008-06-21 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | N$_{2}$O emissions Wheat WNMM Simulation Emission factor Climate variation Ecology Plant Physiology Soil Science & Conservation Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Soil Science Plant Science |
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