![]() The transitional community contained highest MOC content probably due to both physical protection of mineral association and recalcitrant C input from adjacent mangroves. alterniflora vegetated soil was mainly protected by the mineral association. alterniflora and the transitional community were corresponding to higher percentage of mineral organic carbon (MOC), which suggest that the SOC in S. Meanwhile, the larger fractions of silt/clay content in S. On the contrary, the molecular structure of SOC in mangrove forest was dominated by recalcitrant aromatic C. alterniflora soils is simpler than that in mangrove forest, indicating an increased SOC decomposition with invasion of S. From NMR spectroscopy, we found that the SOC molecular structure of Spartina. In this paper, we investigated the relative contribution of mineral association and chemical compounds in maintaining the stabilization of SOC in the mangrove/salt marsh ecotone, and how the microbial community is involved in the stabilization. However, the intrinsic stabilization mechanisms of SOC other than environmental factors are poorly understood in coastal wetland. The anaerobic condition in coastal wetland usually impedes the decomposition of soil organic carbon (SOC). Abstract: Mangrove and salt marsh ecosystems are one of the most productive ecosystems in terrestrial ecosystems, playing an important role in global carbon (C) cycling. ![]()
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