长江中下游稻区不同水旱轮作模式和氮肥水平 对稻田CH4排放的影响
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Effects of Various Paddy-Upland Crop Rotations and Nitrogen Fertilizer Levels on CH4 Emission in the Middle and Lower Reaches of the Yangtze River
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图2. 2016(A、C和E)和2017(B、D和F)年度不同轮作模式及氮肥梯度下稻田CH4排放通量的季节变化 |
Fig. 2. Seasonal variations of CH4 fluxes in rice season under different rotation systems and N fertilizer rates in 2016 (A, C, E), 2017 (B, D, F) |
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