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Forest Floor And Mineral Soil Respiration Rates In A Northern Minnesota Red Pine Chronosequence, Matthew Powers, Randall K Kolka, John Bradford, Brian Palik, Martin F. Jurgensen
Forest Floor And Mineral Soil Respiration Rates In A Northern Minnesota Red Pine Chronosequence, Matthew Powers, Randall K Kolka, John Bradford, Brian Palik, Martin F. Jurgensen
Michigan Tech Publications
We measured total soil CO2 efflux (RS) and efflux from the forest floor layers (RFF) in red pine (Pinus resinosa Ait.) stands of different ages to examine relationships between stand age and belowground C cycling. Soil temperature and RS were often lower in a 31-year-old stand (Y31) than in 9-year-old (Y9), 61-year-old (Y61), or 123-year-old (Y123) stands. This pattern was most apparent during warm summer months, but there were no consistent differences in RFF among different-aged stands. RFF represented an average of 4–13% of total soil respiration, and forest floor removal increased …