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[Effects of nitrogen deposition and biochar application on soil NO fluxes in a Moso bamboo plantation]. | LitMetric
In July 2019-July 2020, we conducted a field trial to examine the effects of nitrogen addition (60 kg N·hm·a), biochar application (10 t·hm), and their combination on soil NO emission and the relationship between soil NO emission and environmental factors in a typical Moso bamboo () plantation in Hangzhou City of Zhejiang Province. Soil NO flux of Moso bamboo plantation was measured by the static chamber-gas chromatography technique. The results showed that nitrogen addition treatment increased the annual cumulative NO emission by 14.6%, while biochar application and the combination treatment reduced it by 20.8% and 10.6%, respectively. Soil NO flux rate was significantly correlated with soil temperature, NO-N concentration, urease and protease activities, and soil NH-N concentration across all treatments. In conclusion, under the background of nitrogen deposition, the application of biochar would have a significant reduction effect on soil NO fluxes in Moso bamboo plantations.
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