Articles | Volume 12, issue 2
https://doi.org/10.5194/soil-12-1121-2026
https://doi.org/10.5194/soil-12-1121-2026
Original research article
 | 
06 Nov 2026
Original research article |  | 06 Nov 2026

Alpine wetland degradation reshapes the balance between hydrolytic and reductive soil nitrogen cycling enzyme potentials on the Qinghai–Tibetan Plateau

Wenhua Chang, Weiwei Ma, Jianfang Wang, Liangcui Song, Jianan Du, Wanpeng He, and Guang Li

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EGUsphere, https://doi.org/10.5194/egusphere-2026-456,https://doi.org/10.5194/egusphere-2026-456, 2026
This preprint is open for discussion and under review for Biogeosciences (BG).
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Cited articles

Abulaizi, M., Chen, M., Yang, Z., Hu, Y., Zhu, X., and Jia, H.: Response of soil bacterial community to alpine wetland degradation in arid Central Asia, Front. Plant Sci., 13, 990597, https://doi.org/10.3389/fpls.2022.990597, 2023. 
Akinyemi, D. S., Zhu, Y., Zhao, M., Zhang, P., Shen, H., and Fang, J.: Response of soil extracellular enzyme activity to experimental precipitation in a shrub-encroached grassland in Inner Mongolia, Global Ecology and Conservation, 23, e01175, https://doi.org/10.1016/j.gecco.2020.e01175, 2020. 
Alhassan, A.-R. M., Ma, W., Li, G., Jiang, Z., Wu, J., and Chen, G.: Response of soil organic carbon to vegetation degradation along a moisture gradient in a wet meadow on the Qinghai-Tibet Plateau, Ecol. Evol., 8, 11999–12010, https://doi.org/10.1002/ece3.4656, 2018. 
Alldred, M. and Baines, S. B.: Effects of wetland plants on denitrification rates: a meta-analysis, Ecol. Appl., 26, 676–685, https://doi.org/10.1890/14-1525, 2016. 
Allison, S. D. and Vitousek, P. M.: Responses of extracellular enzymes to simple and complex nutrient inputs, Soil Biol. Biochem., 37, 937–944, https://doi.org/10.1016/j.soilbio.2004.09.014, 2005. 
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Alpine wetlands on the Qinghai-Tibet Plateau are degrading, threatening soil nutrient cycles. In a three-year Gahai Wetland, we built a nitrogen cycling functional potential index to measure how soil nitrogen cycle enzymes respond to degradation levels. Rather than simply slowing nitrogen cycling, soil drying and carbon loss reorganized the functional potentials of different enzyme pathways, alongside yearly rainfall shifts. These insights will help guide wetland restoration in a drier climate.
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