| Citation: | Yao Meng, Aiguo Zhou, Bo Chai, Yunde Liu, Ling Zheng, Xinghua Wang, Xiaodong Song. What Affects the Weathering Rate of Granite Mountains? From the Perspectives of Geology and Vegetation in Small Watersheds: A Case Study in Jiuhuashan. Journal of Earth Science, 2026, 37(3): 1440-1451. doi: 10.1007/s12583-025-0229-y |
Granite mountainous regions not only exhibit stunning natural landscapes but also play a vital role in the terrestrial carbon cycle. The Silicate Weathering Rates (SWR) serves as a critical factor influencing both landscape formation and carbon consumption. The common method of estimating the watershed SWR by combining the ion flux at watershed outlets with average annual runoff depth does not consider geological-vegetation effects and cannot accurately reflect the actual weathering rate in small watersheds. This study, based on the typical granite geomorphic landscape of Jiuhuashan in eastern China, refines the classification of granite types and vegetation distributions in the region. The chemical composition and instantaneous flow rate of river water in 27 small granite watersheds in Jiuhuashan are systematically measured, thereby the Instantaneous Silicate Weathering Rate (
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