Articles | Volume 20, issue 11
Research article
11 Jun 2020
Research article |  | 11 Jun 2020

Effects of fertilization and stand age on N2O and NO emissions from tea plantations: a site-scale study in a subtropical region using a modified biogeochemical model

Wei Zhang, Zhisheng Yao, Xunhua Zheng, Chunyan Liu, Rui Wang, Kai Wang, Siqi Li, Shenghui Han, Qiang Zuo, and Jianchu Shi

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Cited articles

Akiyama, H., Yan, X., and Yagi, K.: Estimations of emissions factors for fertilizer-induced direct N2O emissions from agricultural soils in Japan: summary of available data, Soil Sci. Plant Nutr., 52, 774–787, 2006. 
Bell, M. J., Jones, E., Smith, P., Yeluripati, J., Augustin, J., Juszczak, R., Olejnik, J., and Sommer, M.: Simulation of soil nitrogen, nitrous oxide emissions and mitigation scenarios at 3 European cropland sites using the ECOSSE model, Nutr. Cycl. Agroecosys., 92, 161–181, 2012. 
Bouwman, A. F., Stehfest, E., and Vankessel, C.: Nitrous oxide emissions from the nitrogen cycle in arable agriculture: estimation and mitigation, in: Nitrous oxide and climate change, edited by: Smith, K. Earthscan, London, 2010. 
Butterbach-Bahl, K., Kahl, M., Mykhayliv, L., Werner, C., Kiese, R., and Li, C.: A European-wide inventory of soil NO emissions using the biogeochemical models DNDC/Forest-DNDC, Atmos. Environ., 43, 1392–1402, 2009. 
Cao, D., Zhang, Q., Xiao, J., and Zong, L.: Localized monitoring of soil acidification rate of tea garden in Jiangsu province, J. Tea Sci., 29, 443–448, 2009 (in Chinese). 
Short summary
The CNMM-DNDC model was modified by improving the scientific processes of soil pH reduction due to tea growth and performed well in simulating emissions of nitrous oxide and nitric oxide. Effects of manure fertilization and stand ages on emissions of both gases were well simulated. Simulated annual emission factors correlate positively with urea or manure doses. The overall inhibitory effects on the gases' emissions in the middle to late stages during a full tea plant lifetime were simulated.
Final-revised paper