05.01.2013 Views

Joint International Conference on Long-term Experiments ...

Joint International Conference on Long-term Experiments ...

Joint International Conference on Long-term Experiments ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

CO 2 flux (mg/m 2 /hr)<br />

CO 2 emissi<strong>on</strong> (mg/m 2 /hr) BC-CH+NT vs BC-PL vs CC-CH vs CC-NT vs CC-PL<br />

12000<br />

10000<br />

8000<br />

6000<br />

4000<br />

2000<br />

60<br />

50<br />

40<br />

30<br />

Day<br />

20<br />

Day vs Temp vs Pred BC CH+NT CO 2<br />

Day vs Temp vs Pred BC PL CO 2<br />

Day vs Temp vs Pred CC CH CO 2<br />

Day vs Temp vs Pred CC NT CO 2<br />

Day vs Temp vs Pred CC PL CO 2<br />

10<br />

20<br />

22<br />

24<br />

26<br />

0<br />

Soil temperature ( o C)<br />

Figure 1 Predicted values of CO2 emissi<strong>on</strong> in soybean-corn rotati<strong>on</strong> and corn<br />

m<strong>on</strong>oculture<br />

Regressi<strong>on</strong> equati<strong>on</strong>s (R 2 = 0,330973):<br />

BC CH+NT CO2 = 3016,09 + 179,75 Temp – 1,78 Temp * Day<br />

BC PL CO2 = 1996,81 + 179,75 Temp – 1,78 Temp * Day<br />

CC CH CO2 = 4674,25 + 179,75 Temp – 2,92 Temp * Day<br />

CC NT CO2 = 5177,25 + 179,75 Temp – 2,92 Temp * Day<br />

CC PL CO2 = 5347,96 + 179,75 Temp – 2,92 Temp * Day<br />

78<br />

28<br />

30

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!