期刊
ELEMENTS
卷 3, 期 5, 页码 321-326出版社
MINERALOGICAL SOC AMER
DOI: 10.2113/gselements.3.5.321
关键词
soil particles; natural organic matter; sorption processes; biogeochemical weathering
Many processes that affect soil and water quality occur at the water wetted interface of weathering products such as clays, oxides, and organic matter. Especially near the sunlit surface of the Critical Zone, these interfaces associate with plant roots and soil organism to form porous, aggregated structures. Soil aggregates and intervening pore networks give rise to a patchwork of interconnected microenvironments. The ensuing steep geochemical gradients affect weathering processes, fuel the activities of microbes, and drive interfacial reactions that retain and transform rock- or ecosystem-derived chemicals and anthropogenic pollutants.
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