Articles | Volume 23, issue 13
https://doi.org/10.5194/bg-23-4603-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-4603-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Jul 2026
Research article |
| 07 Jul 2026
| 07 Jul 2026
Drought-induced soil carbon dynamics in subtropical forests: emergent divergence from model structures
Fengfeng Du
Northeast Asia ecosystem Carbon sink research Center (NACC), Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, 150040, China
Lianjun Feng
Northeast Asia ecosystem Carbon sink research Center (NACC), Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, 150040, China
Lingyan Zhou
Shanghai Engineering Research Center of Sustainable Plant Innovation, Shanghai Botanical Garden, Shanghai, China
Zhizhuang Gu
Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200062, China
Yaqi Zhang
Northeast Asia ecosystem Carbon sink research Center (NACC), Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, 150040, China
Northeast Asia ecosystem Carbon sink research Center (NACC), Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, 150040, China
Xuhui Zhou
Northeast Asia ecosystem Carbon sink research Center (NACC), Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, 150040, China
Cited articles
Abramoff, R. Z., Guenet, B., Zhang, H. C., Georgiou, K., Xu, X. F., Rossel, R. A. V., Yuan, W. P., and Ciais, P.: Improved global-scale predictions of soil carbon stocks with Millennial Version 2, Soil Biol. Biochem., 164, https://doi.org/10.1016/j.soilbio.2021.108466, 2022.
Allison, S. D.: Microbial drought resistance may destabilize soil carbon, Trends Microbiol., 31, 780–787, https://doi.org/10.1016/j.tim.2023.03.002, 2023.
Allison, S. D. and Martiny, J. B. H.: Resistance, resilience, and redundancy in microbial communities, P. Natl. Acad. Sci. USA, 105, 11512–11519, https://doi.org/10.1073/pnas.0801925105, 2008.
Allison, S. D., Wallenstein, M. D., and Bradford, M. A.: Soil-carbon response to warming dependent on microbial physiology, Nat. Geosci., 3, 336–340, https://doi.org/10.1038/NGEO846, 2010.
Anderegg, W. R. L., Trugman, A. T., Badgley, G., Konings, A. G., and Shaw, J.: Divergent forests sensitivity to repeated extreme droughts, Nat. Clim. Change, 10, 1091-U19, https://doi.org/10.1038/s41558-020-00919-1, 2020.
Barnard, R. L., Osborne, C. A., and Firestone, M. K.: Responses of soil bacterial and fungal communities to extreme desiccation and rewetting, ISME J., 7, 2229–2241, https://doi.org/10.1038/ismej.2013.104, 2013.
Basile-Doelsch, I., Balesdent, J., and Pellerin, S.: Reviews and syntheses: The mechanisms underlying carbon storage in soil, Biogeosciences, 17, 5223–5242, https://doi.org/10.5194/bg-17-5223-2020, 2020.
Bastida, F., Torres, I. F., Andrés-Abellán, M., Baldrian, P., López-Mondéjar, R., Vetrovsky, T., and Jehmlich, N.: Differential sensitivity of total and active soil microbial communities to drought and forest management, Glob. Change Biol., 24, 552–552, https://doi.org/10.1111/gcb.13953, 2018.
Benbi, D. K., Boparai, A. K., and Brar, K.: Decomposition of particulate organic matter is more sensitive to temperature than the mineral associated organic matter, Soil Biol. Biochem., 70, 183–192, https://doi.org/10.1016/j.soilbio.2013.12.032, 2014.
Blankinship, J. C., Fonte, S. J., Six, J., and Schimel, J. P.: Plant versus microbial controls on soil aggregate stability in a seasonally dry ecosystem, Geoderma, 272, https://doi.org/10.1016/j.geoderma.2016.03.008, 2016.
Bu, X. L., Gu, X. Y., Zhou, X. Q., Zhang, M. Y., Zhang, M. Y., Zhang, J., Zhou, X. H., Chen, X. Y., and Wang, X. H.: Extreme drought slightly decreased soil labile organic C and N contents and altered microbial community structure in a subtropical evergreen forest, Forest Ecol. Manag., 429, 18–27, https://doi.org/10.1016/j.foreco.2018.06.036, 2018.
Caldwell, B. A.: Enzyme activities as a component of soil biodiversity: A review, Pedobiologia, 49, 637–644, https://doi.org/10.1016/j.pedobi.2005.06.003, 2005.
Camino-Serrano, M., Guenet, B., Luyssaert, S., Ciais, P., Bastrikov, V., De Vos, B., Gielen, B., Gleixner, G., Jornet-Puig, A., Kaiser, K., Kothawala, D., Lauerwald, R., Peñuelas, J., Schrumpf, M., Vicca, S., Vuichard, N., Walmsley, D., and Janssens, I. A.: ORCHIDEE-SOM: modeling soil organic carbon (SOC) and dissolved organic carbon (DOC) dynamics along vertical soil profiles in Europe, Geosci. Model Dev., 11, 937–957, https://doi.org/10.5194/gmd-11-937-2018, 2018.
Campbell, C. A.: Soil organic carbon, nitrogen, and fertility, Dev. Soil Sci., 8, 173–271, https://doi.org/10.1016/S0166-2481(08)70020-5, 1978.
Castro, H. F., Classen, A. T., Austin, E. E., Norby, R. J., and Schadt, C. W.: Soil Microbial Community Responses to Multiple Experimental Climate Change Drivers, Appl. Environ. Microb., 76, 999–1007, https://doi.org/10.1128/AEM.02874-09, 2010.
Chandel, A. K., Jiang, L. F., and Luo, L. Q.: Microbial Models for Simulating Soil Carbon Dynamics: A Review, J. Geophys. Res.-Biogeo., 128, https://doi.org/10.1029/2023JG007436, 2023.
Chen, J., Luo, Y. Q., van Groenigen, K. J., Hungate, B. A., Cao, J. J., Zhou, X. H., and Wang, R. W.: A keystone microbial enzyme for nitrogen control of soil carbon storage, Sci. Adv., 4, https://doi.org/10.1126/sciadv.aaq1689, 2018.
Choat, B., Brodribb, T. J., Brodersen, C. R., Duursma, R. A., López, R., and Medlyn, B. E.: Triggers of tree mortality under drought, Nature, 558, 531–539, https://doi.org/10.1038/s41586-018-0240-x, 2018.
Citerne, N., Wallace, H. M., Lewis, T., Reverchon, F., Omidvar, N., Hu, H. W., Shi, X. Z., Zhou, X. H., Zhou, G. Y., Farrar, M., Rashti, M. R., and Bai, S. H.: Effects of Biochar on Pulse C and N Cycling After a Short-term Drought: a Laboratory Study, J. Soil Sci. Plant Nut., 21, 2815–2825, https://doi.org/10.1007/s42729-021-00568-z, 2021.
Cotrufo, M. F. and Lavallee, J. M.: Soil organic matter formation, persistence, and functioning: A synthesis of current understanding to inform its conservation and regeneration, Adv. Agron., 172, 1–66, https://doi.org/10.1016/bs.agron.2021.11.002, 2022.
Cotrufo, M. F., Wallenstein, M. D., Boot, C. M., Denef, K., and Paul, E.: The Microbial Efficiency-Matrix Stabilization (MEMS) framework integrates plant litter decomposition with soil organic matter stabilization: do labile plant inputs form stable soil organic matter?, Glob. Change Biol., 19, 988–995, https://doi.org/10.1111/gcb.12113, 2013.
Cotrufo, M. F., Ranalli, M. G., Haddix, M. L., Six, J., and Lugato, E.: Soil carbon storage informed by particulate and mineral-associated organic matter, Nat. Geosci., 12, 989–994, https://doi.org/10.1038/s41561-019-0484-6, 2019.
de Vries, F. T., Griffiths, R. I., Bailey, M., Craig, H., Girlanda, M., Gweon, H. S., Hallin, S., Kaisermann, A., Keith, A. M., Kretzschmar, M., Lemanceau, P., Lumini, E., Mason, K. E., Oliver, A., Ostle, N., Prosser, J. I., Thion, C., Thomson, B., and Bardgett, R. D.: Soil bacterial networks are less stable under drought than fungal networks, Nat. Commun., 9, https://doi.org/10.1038/s41467-018-05516-7, 2018.
Du, F. F., Zhang, Y. M., Zhou, L. Y., Dietrich, P., Zhou, G. Y., Wang, J., Zhang, Q. Z., Wang, X. C., Du, Z. G., and Zhou, X. H.: Similar carbon accumulation rates with distinct drivers in two temperate forest restoration approaches, Catena, 258, https://doi.org/10.1016/j.catena.2025.109249, 2025.
Du, Z. G., Nie, Y. Y., He, Y. H., Yu, G. R., Wang, H. M., and Zhou, X. H.: Complementarity of flux- and biometric-based data to constrain parameters in a terrestrial carbon model, Tellus B, 67, https://doi.org/10.3402/tellusb.v67.24102, 2015.
Du, Z. G., Zhou, X. H., Shao, J. J., Yu, G. R., Wang, H. M., Zhai, D. P., Xia, J. Y., and Luo, Y. Q.: Quantifying uncertainties from additional nitrogen data and processes in a terrestrial ecosystem model with Bayesian probabilistic inversion, J. Adv. Model. Earth Sy., 9, 548–565, https://doi.org/10.1002/2016MS000687, 2017.
Eastman, B. A., Wieder, W. R., Hartman, M. D., Brzostek, E. R., and Peterjohn, W. T.: Can models adequately reflect how long-term nitrogen enrichment alters the forest soil carbon cycle?, Biogeosciences, 21, 201–221, https://doi.org/10.5194/bg-21-201-2024, 2024.
Evans, C. D., Monteith, D. T., and Cooper, D. M.: Long-term increases in surface water dissolved organic carbon: Observations, possible causes and environmental impacts, Environ. Pollut., 137, 55–71, https://doi.org/10.1016/j.envpol.2004.12.031, 2005.
Feng, J., Yao, Y., He, Y., Wang, P., Hu, H., and Zhang, S.: Hydraulic strategies of Cunninghamia lanceolata under drought are shaped by native drought conditions, For. Res., 5, e031, https://doi.org/10.48130/forres-0025-0031, 2025.
Ficken, C. D. and Warren, J. M.: The carbon economy of drought: comparing respiration responses of roots, mycorrhizal fungi, and free-living microbes to an extreme dry-rewet cycle, Plant Soil, 435, 407–422, https://doi.org/10.1007/s11104-018-03900-2, 2019.
Gao, Q., Hasselquist, N. J., Palmroth, S., Zheng, Z. M., and You, W. H.: Short-term response of soil respiration to nitrogen fertilization in a subtropical evergreen forest, Soil Biol. Biochem., 76, 297–300, https://doi.org/10.1016/j.soilbio.2014.04.020, 2014.
Guo, X. W., Rossel, R. A. V., Wang, G. C., Xiao, L. J., Wang, M. M., Zhang, S., and Luo, Z. K.: Particulate and mineral-associated organic carbon turnover revealed by modelling their long-term dynamics, Soil Biol. Biochem., 173, https://doi.org/10.1016/j.soilbio.2022.108780, 2022.
Han, Y. A., Deng, J. J., Zhou, W. M., Wang, Q. M., and Yu, D. P.: Seasonal Responses of Hydraulic Function and Carbon Dynamics in Spruce Seedlings to Continuous Drought, Front. Plant Sci., 13, https://doi.org/10.3389/fpls.2022.868108, 2022.
Hansen, P. M., Even, R., King, A. E., Lavallee, J., Schipanski, M., and Cotrufo, M. F.: Distinct, direct and climate-mediated environmental controls on global particulate and mineral-associated organic carbon storage, Glob. Change Biol., 30, https://doi.org/10.1111/gcb.17080, 2024.
Hao, X. C. and Singh, V. P.: Drought characterization from a multivariate perspective: A review, J. Hydrol., 527, 668–678, https://doi.org/10.1016/j.jhydrol.2015.05.031, 2015.
Honeker, L. K., Pugliese, G., Ingrisch, J., Fudyma, J., Gil-Loaiza, J., Carpenter, E., Singer, E., Hildebrand, G., Shi, L. L., Hoyt, D. W., Chu, R. K., Toyoda, J., Krechmer, J. E., Claflin, M. S., Ayala-Ortiz, C., Freire-Zapata, V., Pfannerstill, E. Y., Daber, L. E., Meeran, K., Dippold, M. A., Kreuzwieser, J., Williams, J., Ladd, S. N., Werner, C., Tfaily, M. M., and Meredith, L. K.: Drought re-routes soil microbial carbon metabolism towards emission of volatile metabolites in an artificial tropical rainforest, Nat. Microbiol., 9, 1146–1147, https://doi.org/10.1038/s41564-023-01507-7, 2024.
Huang, Y., Guenet, B., Ciais, P., Janssens, I. A., Soong, J. L., Wang, Y., Goll, D., Blagodatskaya, E., and Huang, Y.: ORCHIMIC (v1.0), a microbe-mediated model for soil organic matter decomposition, Geosci. Model Dev., 11, 2111–2138, https://doi.org/10.5194/gmd-11-2111-2018, 2018.
Hueso, S., García, C., and Hernández, T.: Severe drought conditions modify the microbial community structure, size and activity in amended and unamended soils, Soil Biol. Biochem., 50, 167–173, https://doi.org/10.1016/j.soilbio.2012.03.026, 2012.
IPCC: Climate Change 2023: Synthesis Report. Contribution of Working Groups I, II and III to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Core Writing Team, Lee, H., and Romero, J., IPCC, Geneva, Switzerland, 35–115, https://doi.org/10.59327/IPCC/AR6-9789291691647, 2023.
Jenny, H.: Factors of Soil Formation: A System of Quantitative Pedology, Dover Publications, New York, 281 pp., ISBN 978-0486642880, 1941.
Jiang, Z., Fu, Y., Zhou, L., He, Y., Zhou, G., Dietrich, P., Long, J., Wang, X., Jia, S., Ji, Y., Jia, Z., Song, B., Liu, R., and Zhou, X.: Plant growth strategy determines the magnitude and direction of drought-induced changes in root exudates in subtropical forests, Glob. Change Biol., 29, 3476–3488, 2023.
Knorr, W., Prentice, I. C., House, J. I., and Holland, E. A.: Long-term sensitivity of soil carbon turnover to warming, Nature, 433, 298–301, https://doi.org/10.1038/nature03226, 2005.
Krinner, G., Viovy, N., de Noblet-Ducoudré, N., Ogée, J., Polcher, J., Friedlingstein, P., Ciais, P., Sitch, S., and Prentice, I. C.: A dynamic global vegetation model for studies of the coupled atmosphere-biosphere system, Global Biogeochem. Cy., 19, GB1015, https://doi.org/10.1029/2003GB002199, 2005.
Lawrence, C. R., Neff, J. C., and Schimel, J. P.: Does adding microbial mechanisms of decomposition improve soil organic matter models? A comparison of four models using data from a pulsed rewetting experiment, Soil Biol. Biochem., 41, 1923–1934, https://doi.org/10.1016/j.soilbio.2009.06.016, 2009.
Lawrence, D. M., Fisher, R. A., Koven, C. D., Oleson, K. W., Swenson, S. C., Bonan, G., Collier, N., Ghimire, B., van Kampenhout, L., Kennedy, D., Kluzek, E., Lawrence, P. J., Li, F., Li, H. Y., Lombardozzi, D., Riley, W. J., Sacks, W. J., Shi, M. J., Vertenstein, M., Wieder, W. R., Xu, C. G., Ali, A. A., Badger, A. M., Bisht, G., van den Broeke, M., Brunke, M. A., Burns, S. P., Buzan, J., Clark, M., Craig, A., Dahlin, K., Drewniak, B., Fisher, J. B., Flanner, M., Fox, A. M., Gentine, P., Hoffman, F., Keppel-Aleks, G., Knox, R., Kumar, S., Lenaerts, J., Leung, L. R., Lipscomb, W. H., Lu, Y. Q., Pandey, A., Pelletier, J. D., Perket, J., Randerson, J. T., Ricciuto, D. M., Sanderson, B. M., Slater, A., Subin, Z. M., Tang, J. Y., Thomas, R. Q., Martin, M. V., and Zeng, X. B.: The Community Land Model Version 5: Description of New Features, Benchmarking, and Impact of Forcing Uncertainty, J. Adv. Model. Earth Sy., 11, 4245–4287, https://doi.org/10.1029/2018MS001583, 2019.
Lee, J. and Rossel, R. V. A.: Soil carbon simulation confounded by different pool initialization, Nutr. Cycl. Agroecosys., 116, 245–255, https://doi.org/10.1007/s10705-019-10041-0, 2020.
Liang, C., Kästner, M., and Joergensen, R. G.: Microbial necromass on the rise: The growing focus on its role in soil organic matter development, Soil Biol. Biochem, 150, https://doi.org/10.1016/j.soilbio.2020.108000, 2020.
Lugato, E., Lavallee, J. M., Haddix, M. L., Panagos, P., and Cotrufo, M. F.: Different climate sensitivity of particulate and mineral-associated soil organic matter, Nat. Geosci., 15, 509–509, https://doi.org/10.1038/s41561-022-00945-y, 2022.
Luo, Z. K., Luo, Y. Q., Wang, G. C., Xia, J. Y., and Peng, C. H.: Warming-induced global soil carbon loss attenuated by downward carbon movement, Glob. Change Biol., 26, 7242–7254, https://doi.org/10.1111/gcb.15370, 2020.
Martiny, J. B. H., Jones, S. E., Lennon, J. T., and Martiny, A. C.: Microbiomes in light of traits: A phylogenetic perspective, Science, 350, https://doi.org/10.1126/science.aac9323, 2015.
Meir, P., Metcalfe, D. B., Costa, A. C. L., and Fisher, R. A.: The fate of assimilated carbon during drought: impacts on respiration in Amazon rainforests, Philos. T. R. Soc. B, 363, 1849–1855, https://doi.org/10.1098/rstb.2007.0021, 2008.
Moorhead, D. L. and Sinsabaugh, R. L.: A theoretical model of litter decay and microbial interaction, Ecol. Monogr., 76, 151–174, https://doi.org/10.1890/0012-9615(2006)076[0151:ATMOLD]2.0.CO;2, 2006.
Müller, L. M. and Bahn, M.: Drought legacies and ecosystem responses to subsequent drought, Glob. Change Biol., 28, 5086–5103, https://doi.org/10.1111/gcb.16270, 2022.
Paul, E. A. and Van Vee, J. A.: The use of tracers to determine the dynamic nature of organic matter, Trans. Int. Congr. Soil Sci., 11, 61–102, 1978.
Pennisi, E.: Global drought experiment reveals the toll on plant growth, Science, 377, 901–910, https://doi.org/10.1126/science.ade5540, 2022.
Preece, C., Verbruggen, E., Liu, L., Weedon, J. T., and Peñuelas, J.: Effects of past and current drought on the composition and diversity of soil microbial communities, Soil Biol. Biochem., 131, 28–39, https://doi.org/10.1016/j.soilbio.2018.12.022, 2019.
Quiroga, G., Castagneyrol, B., Abdala-Roberts, L., and Moreira, X.: A meta-analysis of the effects of climate change-related abiotic factors on aboveground and belowground plant-associated microbes, Oikos, 2024, https://doi.org/10.1111/oik.10411, 2024.
Reinelt, L., Whitaker, J., Kazakou, E., Bonnal, L., Bastianelli, D., Bullock, J. M., and Ostle, N. J.: Drought effects on root and shoot traits and their decomposability, Funct. Ecol., 37, 1044–1054, https://doi.org/10.1111/1365-2435.14261, 2023.
Ricks, K. D. and Yannarell, A. C.: Soil moisture incidentally selects for microbes that facilitate locally adaptive plant response, P. Roy. Soc. B-Biol. Sci., 290, https://doi.org/10.1098/rspb.2023.0469, 2023.
Rowland, L., Ramírez-Valiente, J. A., Hartley, I. P., and Mencuccini, M.: How woody plants adjust above- and below-ground traits in response to sustained drought, New Phytol., 239, 1173–1189, https://doi.org/10.1111/nph.19000, 2023.
Saiya-Cork, K. R., Sinsabaugh, R. L., and Zak, D. R.: The effects of long term nitrogen deposition on extracellular enzyme activity in an Acer Saccharum forest soil, Soil Biol. Biochem., 34, 1309–1315, https://doi.org/10.1016/S0038-0717(02)00074-3, 2002.
Sardans, J. and Peñuelas, J.: Soil Enzyme Activity in a Mediterranean Forest after Six Years of Drought, Soil Sci. Soc. Am. J., 74, 838–851, https://doi.org/10.2136/sssaj2009.0225, 2010.
Schimel, J. P.: Life in Dry Soils: Effects of Drought on Soil Microbial Communities and Processes, Annu. Rev. Ecol. Evol. S., 49, 409–432, https://doi.org/10.1146/annurev-ecolsys-110617-062614, 2018.
Schwalm, C. R., Anderegg, W. R. L., Michalak, A. M., Fisher, J. B., Biondi, F., Koch, G., Litvak, M., Ogle, K., Shaw, J. D., Wolf, A., Huntzinger, D. N., Schaefer, K., Cook, R., Wei, Y. X., Fang, Y. Y., Hayes, D., Huang, M. Y., Jain, A., and Tian, H. Q.: Global patterns of drought recovery, Nature, 548, 202–205, https://doi.org/10.1038/nature23021, 2017.
Si, Q., Chen, K., Wei, B., Zhang, Y., Sun, X., and Liang, J.: Dissolved carbon flow to particulate organic carbon enhances soil carbon sequestration, SOIL, 10, 441–450, https://doi.org/10.5194/soil-10-441-2024, 2024.
Sokol, N. W., Sanderman, J., and Bradford, M. A.: Pathways of mineral-associated soil organic matter formation: Integrating the role of plant carbon source, chemistry, and point of entry, Glob. Change Biol., 25, 12–24, https://doi.org/10.1111/gcb.14482, 2019.
Sowerby, A., Emmett, B. A., Williams, D., Beier, C., and Evans, C. D.: The response of dissolved organic carbon (DOC) and the ecosystem carbon balance to experimental drought in a temperate shrubland, Eur. J. Soil Sci., 61, 697–709, https://doi.org/10.1111/j.1365-2389.2010.01276.x, 2010.
Stursová, M., Zifcáková, L., Leigh, M. B., Burgess, R., and Baldrian, P.: Cellulose utilization in forest litter and soil: identification of bacterial and fungal decomposers, FEMS Microbiol. Ecol., 80, 735–746, https://doi.org/10.1111/j.1574-6941.2012.01343.x, 2012.
Su, X., Su, X. L., Yang, S. C., Zhou, G. Y., Ni, M. Y., Wang, C., Qin, H., Zhou, X. H., and Deng, J.: Drought changed soil organic carbon composition and bacterial carbon metabolizing patterns in a subtropical evergreen forest, Sci. Total Environ., 736, https://doi.org/10.1016/j.scitotenv.2020.139568, 2020a.
Su, X. L., Su, X., Zhou, G. Y., Du, Z. G., Yang, S. C., Ni, M. Y., Qin, H., Huang, Z. Q., Zhou, X. H., and Deng, J.: Drought accelerated recalcitrant carbon loss by changing soil aggregation and microbial communities in a subtropical forest, Soil Biol. Biochem., 148, https://doi.org/10.1016/j.soilbio.2020.107898, 2020b.
Szejgis, J., Carrillo, Y., Jeffries, T. C., Dijkstra, F. A., Chieppa, J., Horn, S., Bristol, D., Maisnam, P., Eldridge, D., and Nielsen, U. N.: Altered rainfall greatly affects enzyme activity but has limited effect on microbial biomass in Australian dryland soils, Soil Biol. Biochem., 189, https://doi.org/10.1016/j.soilbio.2023.109277, 2024.
Tao, F., Houlton, B. Z., Huang, Y. Y., Wang, Y. P., Manzoni, S., Ahrens, B., Mishra, U., Jiang, L. F., Huang, X. M., and Luo, Y. Q.: Convergence in simulating global soil organic carbon by structurally different models after data assimilation, Glob. Change Biol., 30, https://doi.org/10.1111/gcb.17297, 2024.
Tiwari, T., Sponseller, R., and Laudon, H.: The emerging role of drought as a regulator of dissolved organic carbon in boreal landscapes, Nat. Commun., 13, https://doi.org/10.1038/s41467-022-32839-3, 2022.
Ulrich, D. E. M., Clendinen, C. S., Alongi, F., Mueller, R. C., Chu, R. K., Toyoda, J., Gallegos-Graves, L., Goemann, H. M., Peyton, B., Sevanto, S., and Dunbar, J.: Root exudate composition reflects drought severity gradient in blue grama (Bouteloua gracilis), Sci. Rep.-UK, 12, https://doi.org/10.1038/s41598-022-16408-8, 2022.
Villarino, S. H., Pinto, P., Jackson, R. B., and Piñeiro, G.: Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions, Sci Adv., 7, https://doi.org/10.1126/sciadv.abd3176, 2021.
Wan, F., Bian, C., Weng, E., Luo, Y., Huang, K., and Xia, J.: TECO-CNP Sv1.0: a coupled carbon-nitrogen-phosphorus model with data assimilation for subtropical forests, Geosci. Model Dev., 18, 7545–7573, https://doi.org/10.5194/gmd-18-7545-2025, 2025.
Wang, X., Zhou, L., Fu, Y., Jiang, Z., Jia, S., Song, B., Liu, D., and Zhou, X.: Drought-induced changes in rare microbial community promoted contribution of microbial necromass C to SOC in a subtropical forest, Soil Biol. Biochem., 189, https://doi.org/10.1016/j.soilbio.2023.109252, 2024.
Wang, X. Y., Lu, D. L., Schonbeck, L., Han, Y. N., Bai, S. B., Yu, D. P., Han, Q. M., and Wang, Q. W.: Contrasting effects of prolonged drought and nitrogen addition on growth and non-structural carbohydrate dynamics in coexisting Pinus koraiensis and Fraxinus mandshurica saplings, For. Res., 5, e003, https://doi.org/10.48130/forres-0025-0002, 2025.
Willard, S. J., Liang, G. P., Adkins, S., Foley, K., Murray, J., and Waring, B.: Land use drives the distribution of free, physically protected, and chemically protected soil organic carbon storage at a global scale, Glob. Change Biol., 30, https://doi.org/10.1111/gcb.17507, 2024.
Williams, A. and de Vries, F. T.: Plant root exudation under drought: implications for ecosystem functioning, New Phytol., 225, 1899–1905, https://doi.org/10.1111/nph.16223, 2020.
Wu, H., Peng, C., Moore, T. R., Hua, D., Li, C., Zhu, Q., Peichl, M., Arain, M. A., and Guo, Z.: Modeling dissolved organic carbon in temperate forest soils: TRIPLEX-DOC model development and validation, Geosci. Model Dev., 7, 867–881, https://doi.org/10.5194/gmd-7-867-2014, 2014.
Wu, J. F., Yao, H. X., Chen, X. H., and Chen, X. W.: Dynamics of dissolved organic carbon during drought and flood events: A phase-by-stages perspective, Sci. Total Environ., 871, https://doi.org/10.1016/j.scitotenv.2023.162158, 2023.
Wu, R. Q., Wang, Y. S., Huo, X. Y., Chen, W. J., and Wang, D. X.: Drought and vegetation restoration patterns shape soil enzyme activity and nutrient limitation dynamics in the loess plateau, J. Environ. Manage., 374. https://doi.org/10.1016/j.jenvman.2024.123846, 2025.
Wu, X. W., Luo, Y. Q., Weng, E. S., White, L., Ma, Y., and Zhou, X. H.: Conditional inversion to estimate parameters from eddy-flux observations, J. Plant Ecol., 2, 55–68, https://doi.org/10.1093/jpe/rtp005, 2009.
Xu, T., White, L., Hui, D. F., and Luo, Y. Q.: Probabilistic inversion of a terrestrial ecosystem model: Analysis of uncertainty in parameter estimation and model prediction, Global Biogeochem. Cy., 20, https://doi.org/10.1029/2005GB002468, 2006.
Yin, H., Zheng, H. W., Zhang, B., Tariq, A., Lv, G. H., Zeng, F. J., and Graciano, C.: Stoichiometry of
Zhao, T. H., Yang, X., He, R., Shi, B. K., Gao, W. F., Ma, J. Y., and Sun, W.: Plant-soil microbe adaptive strategies reshape soil respiration components under multi-year precipitation frequency reduction and nitrogen addition in a semi-arid grassland, Funct. Ecol., 39, 2370–2380, https://doi.org/10.1111/1365-2435.70118, 2025.
Zhou, G. Y., Zhou, X. H., Liu, R. Q., Du, Z. G., Zhou, L. Y., Li, S. S., Liu, H. Y., Shao, J. J., Wang, J. W., Nie, Y. Y., Gao, J., Wang, M. H., Zhang, M. Y., Wang, X. H., and Bai, S. H.: Soil fungi and fine root biomass mediate drought-induced reductions in soil respiration, Funct. Ecol., 34, 2634–2643, https://doi.org/10.1111/1365-2435.13677, 2020.
Zhou, X. Q., Chen, C. R., Wang, Y. F., Xu, Z. H., Duan, J. C., Hao, Y. B., and Smaill, S.: Soil extractable carbon and nitrogen, microbial biomass and microbial metabolic activity in response to warming and increased precipitation in a semiarid Inner Mongolian grassland, Geoderma, 206, 24–31, https://doi.org/10.1016/j.geoderma.2013.04.020, 2013.
Short summary
We conducted a comparative evaluation of three soil organic carbon modeling structures under decadal drought. Results revealed significant disparities in the drought effects on soil organic carbon, with these differences primarily driven by carbon input and carbon residence times. Explicitly incorporating microbial enzyme altered the impacts of drought on organic carbon. These findings underscore the significance of model structure, constrainability, and microbial enzymies.
We conducted a comparative evaluation of three soil organic carbon modeling structures under...
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