Arneth, A. et al. Terrestrial biogeochemical feedbacks in the climate system. Nat. Geosci. 3, 525–532 (2010).
Google Scholar
Adoption of the Paris Agreement FCCC/CP/2015/L.9/Rev.1 (UNFCC, 2015).
IPCC Special Report on Climate Change and Land (eds Shukla, P. R. et al.) (IPCC, 2019).
Oertel, C., Matschullat, J., Zurba, K., Zimmermann, F. & Erasmi, S. Greenhouse gas emissions from soils—a review. Geochemistry 76, 327–352 (2016).
Google Scholar
Schlesinger, W. H. & Bernhardt, E. S. Biogeochemistry: An Analysis of Global Change 3rd edn (Elsevier, 2013).
Harris, N. L. et al. Global maps of twenty-first century forest carbon fluxes. Nat. Clim. Change 11, 234–240 (2021).
Google Scholar
Ackerman, D., Millet, D. B. & Chen, X. Global estimates of inorganic nitrogen deposition across four decades. Glob. Biogeochem. Cycles 33, 100–107 (2019).
Google Scholar
Du, E. Rise and fall of nitrogen deposition in the United States. Proc. Natl Acad. Sci. USA 113, E3594–E3595 (2016).
Google Scholar
Schmitz, A. et al. Responses of forest ecosystems in Europe to decreasing nitrogen deposition. Environ. Pollut. 244, 980–994 (2019).
Google Scholar
Hietz, P. et al. Long-term change in the nitrogen cycle of tropical forests. Science 334, 664–666 (2011).
Google Scholar
Fang, Y. T., Gundersen, P., Mo, J. M. & Zhu, W. X. Input and output of dissolved organic and inorganic nitrogen in subtropical forests of South China under high air pollution. Biogeosciences 5, 339–352 (2008).
Google Scholar
Yu, G. et al. Stabilization of atmospheric nitrogen deposition in China over the past decade. Nat. Geosci. 12, 424–429 (2019).
Google Scholar
Liu, L. L. & Greaver, T. L. A global perspective on belowground carbon dynamics under nitrogen enrichment. Ecol. Lett. 13, 819–828 (2010).
Google Scholar
LeBauer, D. S. & Treseder, K. K. Nitrogen limitation of net primary productivity in terrestrial ecosystems is globally distributed. Ecology 89, 371–379 (2008).
Google Scholar
Reich, P. B. et al. Scaling of respiration to nitrogen in leaves, stems and roots of higher land plants. Ecol. Lett. 11, 793–801 (2008).
Google Scholar
Cornwell, W. K. et al. Plant species traits are the predominant control on litter decomposition rates within biomes worldwide. Ecol. Lett. 11, 1065–1071 (2008).
Google Scholar
Mo, J. et al. Nitrogen addition reduces soil respiration in a mature tropical forest in southern China. Glob. Change Biol. 14, 403–412 (2008).
Google Scholar
Janssens, I. A. et al. Reduction of forest soil respiration in response to nitrogen deposition. Nat. Geosci. 3, 315–322 (2010).
Google Scholar
Zhong, Y., Yan, W. & Shangguan, Z. The effects of nitrogen enrichment on soil CO2 fluxes depending on temperature and soil properties. Glob. Ecol. Biogeogr. 25, 475–488 (2016).
Google Scholar
Deng, L. et al. Soil GHG fluxes are altered by N deposition: new data indicate lower N stimulation of the N2O flux and greater stimulation of the calculated C pools. Glob. Change Biol. 26, 2613–2629 (2020).
Google Scholar
Hagedorn, F., Kammer, A., Schmidt, M. W. I. & Goodale, C. L. Nitrogen addition alters mineralization dynamics of 13C-depleted leaf and twig litter and reduces leaching of older DOC from mineral soil. Glob. Change Biol. 18, 1412–1427 (2012).
Google Scholar
Du, Y. et al. Different types of nitrogen deposition show variable effects on the soil carbon cycle process of temperate forests. Glob. Change Biol. 20, 3222–3228 (2014).
Google Scholar
Yan, T. et al. Negative effect of nitrogen addition on soil respiration dependent on stand age: evidence from a 7-year field study of larch plantations in northern China. Agr. For. Meteorol. 262, 24–33 (2018).
Google Scholar
Xing, A. et al. Nonlinear responses of ecosystem carbon fluxes to nitrogen deposition in an old-growth boreal forest. Ecol. Lett. 25, 77–78 (2021).
Google Scholar
Melillo, J. et al. Long-term pattern and magnitude of soil carbon feedback to the climate system in a warming world. Science 358, 101–105 (2017).
Google Scholar
Gao, Q. et al. Stimulation of soil respiration by elevated CO2 is enhanced under nitrogen limitation in a decade-long grassland study. Proc. Natl Acad. Sci. USA 117, 33317–33324 (2020).
Google Scholar
Liu, X. J. et al. Nitrogen deposition and its ecological impact in China: an overview. Environ. Pollut. 159, 2251–2264 (2011).
Google Scholar
Zhu, F. F., Yoh, M., Gilliam, F. S., Lu, X. K. & Mo, J. M. Nutrient limitation in three lowland tropical forests in southern China receiving high nitrogen deposition: insights from fine root responses to nutrient additions. PLoS ONE 8, e82661 (2013).
Google Scholar
Wang, C. et al. Responses of soil microbial community to continuous experimental nitrogen additions for 13 years in a nitrogen-rich tropical forest. Soil Biol. Biochem. 121, 103–112 (2018).
Google Scholar
Priess, J. & Fölster, H. Microbial properties and soil respiration in submontane forests of Venezuelian Guyana: characteristics and response to fertilizer treatments. Soil Biol. Biochem. 33, 503–509 (2001).
Google Scholar
He, T., Wang, Q., Wang, S. & Zhang, F. Nitrogen addition altered the effect of belowground C allocation on soil respiration in a subtropical forest. PLoS ONE 11, e0155881 (2016).
Google Scholar
Fan, H. et al. Nitrogen deposition promotes ecosystem carbon accumulation by reducing soil carbon emission in a subtropical forest. Plant Soil 379, 361–371 (2014).
Google Scholar
Zheng, M. et al. Effects of nitrogen and phosphorus additions on nitrous oxide emission in a nitrogen-rich and two nitrogen-limited tropical forests. Biogeosciences 13, 3503–3517 (2016).
Google Scholar
Lu, X. et al. Nitrogen deposition accelerates soil carbon sequestration in tropical forests. Proc. Natl Acad. Sci. USA 118, e2020790118 (2021).
Google Scholar
Zhou, G. Y. et al. Old-growth forests can accumulate carbon in soils. Science 314, 1417–1417 (2006).
Google Scholar
Tian, J. et al. Long-term nitrogen addition modifies microbial composition and functions for slow carbon cycling and increased sequestration in tropical forest soil. Glob. Change Biol. 25, 3267–3281 (2019).
Google Scholar
Huang, N. et al. Spatial and temporal variations in global soil respiration and their relationships with climate and land cover. Sci. Adv. 6, eabb8508 (2020).
Google Scholar
Lu, X. K. et al. Effect of simulated N deposition on soil exchangeable cations in three forest types of subtropical China. Pedosphere 19, 189–198 (2009).
Google Scholar
Fang, Y., Gundersen, P., Mo, J. & Zhu, W. Nitrogen leaching in response to increased nitrogen inputs in subtropical monsoon forests in southern China. For. Ecol. Manage. 257, 332–342 (2009).
Google Scholar
Chen, X. M. et al. Effects of nitrogen deposition on soil organic carbon fractions in the subtropical forest ecosystems of S. China. J. Plant Nutr. Soil Sci. 175, 947–953 (2012).
Google Scholar
Fang, H. J. et al. 13C abundance, water-soluble and microbial biomass carbon as potential indicators of soil organic carbon dynamics in subtropical forests at different successional stages and subject to different nitrogen loads. Plant Soil 320, 243–254 (2009).
Google Scholar
Liu, L. et al. Effects of nitrogen and phosphorus additions on soil microbial biomass and community structure in two reforested tropical forests. Sci. Rep. 5, 14378–14378 (2014).
Google Scholar
Chen, H. et al. Nitrogen saturation in humid tropical forests after 6 years of nitrogen and phosphorus addition: hypothesis testing. Funct. Ecol. 30, 305–313 (2015).
Google Scholar
Lu, X., Mao, Q., Gilliam, F. S., Luo, Y. & Mo, J. Nitrogen deposition contributes to soil acidification in tropical ecosystems. Glob. Change Biol. 20, 3790–3801 (2014).
Google Scholar
Mao, Q. G. Impacts of Long-Term Nitrogen and Phosphorus Addition on Understory Plant Diversity in Subtropical Forests in Southern China. Doctoral Thesis, Univ. Chinese Academy of Sciences (2017).
Xing, A. J. et al. High-level nitrogen additions accelerate soil respiration reduction over time in a boreal forest. Ecol. Lett. https://doi.org/10.1111/ele.14065 (2022).
Cao, J. et al. Plant–bacteria–soil response to frequency of simulated nitrogen deposition has implications for global ecosystem change. Funct. Ecol. 34, 723–734 (2020).
Google Scholar
Mo, J. M., Brown, S., Peng, S. L. & Kong, G. H. Nitrogen availability in disturbed, rehabilitated and mature forests of tropical China. For. Ecol. Manage. 175, 573–583 (2003).
Google Scholar
Huang, Z. L., Ding, M. M., Zhang, Z. P. & Yi, W. M. The hydrological processes and nitrogen dynamics in a monsoon evergreen broad-leafed forest of Dinghushan. Acta Phytoecol. Sin. 18, 194–199 (1994).
Wright, R. F. & Rasmussen, L. Introduction to the NITREX and EXMAN projects. For. Ecol. Manage. 101, 1–7 (1998).
Google Scholar
Gundersen, P. et al. Impact of nitrogen deposition on nitrogen cycling in forests: a synthesis of NITREX data. For. Ecol. Manage. 101, 37–55 (1998).
Google Scholar
Aber, J. D. et al. Plant and soil responses to chronic nitrogen additions at the Harvard Forest, Massachusetts. Ecol. Appl. 3, 156–166 (1993).
Google Scholar
Cleveland, C. C. & Townsend, A. R. Nutrient additions to a tropical rain forest drive substantial soil carbon dioxide losses to the atmosphere. Proc. Natl Acad. Sci. USA 103, 10316–10321 (2006).
Google Scholar
Song, X. et al. Nitrogen addition increased CO2 uptake more than non-CO2 greenhouse gases emissions in a Moso bamboo forest. Sci. Adv. 6, eaaw5790 (2020).
Google Scholar
Lu, X. et al. Long-term nitrogen addition decreases carbon leaching in nitrogen-rich forest ecosystems. Biogeosciences 10, 3931–3941 (2013).
Google Scholar
Ackerman, D., Millet, D. B. & Chen, X. Global estimates of inorganic nitrogen deposition across four decades. Glob. Biogeochem. Cycles 33, 100–107 (2019).
Google Scholar
Tang, X., Liu, S., Zhou, G., Zhang, D. & Zhou, C. Soil–atmospheric exchange of CO2, CH4, and N2O in three subtropical forest ecosystems in southern China. Glob. Change Biol. 12, 546–560 (2006).
Google Scholar
Lei, J. et al. Temporal changes in global soil respiration since 1987. Nat. Commun. 12, 403 (2021).
Google Scholar
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