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N<sub>2</sub>O, NO, N<sub>2</sub> and CO<sub>2</sub> emissions from tropical savanna and grassland of northern Australia: an incubation experiment with intact soil cores

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Figure 1. Climatic conditions at sampling sites (data: Bureau of Meteorology, Australia, http://www.bom.gov.au, years 1981–2010).
Figure 2. Schematic of the incubation setup. The soil moisture level of the cores was kept constant be readding water every second day, the temperature was raised stepwise from 20 ◦ C, to 30 ◦ C, and finally 40 ◦ C
Figure 3. Average CO 2 emission per site (savanna: T1P1, T1P3, T1P5; grassland: T3P1) for three soil moisture (black: 25 % water-filled pore space (WFPS), red: 50 % WFPS, green 75 % WFPS) and three temperature levels (x axis days since incubation change/ne
Table 1. Physicochemical properties of the sampled soil and mean microbial biomass (sampling depth 0–20 cm; ∗ µg C/N g [dry weight] soil −1 ; BD: bulk density).
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