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- W1993313302 abstract "Forests return large quantities of C to the atmosphere through soil respiration (Rsoil), which is often conceptually separated into autotrophic C respired by living roots (Rroot) and heterotrophic decomposition (Rhet) of soil organic matter (SOM). Live roots provide C sources for microbial metabolism via exudation, allocation to fungal associates, sloughed-off cells, and secretions such as mucilage production, suggesting a coupling between the activity of roots and heterotrophs. We addressed the strength of root effects on the activity of microbes and exo-enzymes by removing live-root-C inputs to areas of soil with a trenching experiment. We examined the extent to which trenching affected metrics of soil heterotrophic activity (proteolytic enzyme activity, microbial respiration, potential net N mineralization and nitrification, and exo-enzyme activities) in a forest exposed to elevated atmospheric [CO2] and N fertilization, and used automated measurements of Rsoil in trenched and un-trenched plots to estimate Rroot and Rhet components. Trenching decreased many metrics of heterotrophic activity and increased net N mineralization and nitrification, suggesting that the removal of root-C inputs reduced Rhet by exacerbating microbial C limitation and stimulating waste-N excretion. This trenching effect was muted by N fertilization alone but not when N fertilization was combined with elevated CO2, consistent with known patterns of belowground C allocation at this site. Live-root-C inputs to soils and heterotrophic activity are tightly coupled, so root severing techniques like trenching are not likely to achieve robust quantitative estimates of Rroot or Rhet." @default.
- W1993313302 created "2016-06-24" @default.
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- W1993313302 date "2012-11-01" @default.
- W1993313302 modified "2023-10-01" @default.
- W1993313302 title "Trenching reduces soil heterotrophic activity in a loblolly pine ( Pinus taeda ) forest exposed to elevated atmospheric [CO 2 ] and N fertilization" @default.
- W1993313302 cites W1505543708 @default.
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- W1993313302 cites W1576511234 @default.
- W1993313302 cites W1669888413 @default.
- W1993313302 cites W1819634858 @default.
- W1993313302 cites W1963655608 @default.
- W1993313302 cites W1970010130 @default.
- W1993313302 cites W1971684300 @default.
- W1993313302 cites W1974019968 @default.
- W1993313302 cites W1981747359 @default.
- W1993313302 cites W1984412649 @default.
- W1993313302 cites W1987498644 @default.
- W1993313302 cites W1990969447 @default.
- W1993313302 cites W1997017681 @default.
- W1993313302 cites W2003840772 @default.
- W1993313302 cites W2012255145 @default.
- W1993313302 cites W2013137137 @default.
- W1993313302 cites W2022615267 @default.
- W1993313302 cites W2024781405 @default.
- W1993313302 cites W2030079582 @default.
- W1993313302 cites W2038137051 @default.
- W1993313302 cites W2048006760 @default.
- W1993313302 cites W2051431345 @default.
- W1993313302 cites W2052552328 @default.
- W1993313302 cites W2052757363 @default.
- W1993313302 cites W2056399235 @default.
- W1993313302 cites W2057072793 @default.
- W1993313302 cites W2060291084 @default.
- W1993313302 cites W2061150550 @default.
- W1993313302 cites W2065421415 @default.
- W1993313302 cites W2066129089 @default.
- W1993313302 cites W2077275159 @default.
- W1993313302 cites W2084845442 @default.
- W1993313302 cites W2089087782 @default.
- W1993313302 cites W2096371469 @default.
- W1993313302 cites W2100494756 @default.
- W1993313302 cites W2103256878 @default.
- W1993313302 cites W2105956009 @default.
- W1993313302 cites W2106446186 @default.
- W1993313302 cites W2106708698 @default.
- W1993313302 cites W2108732658 @default.
- W1993313302 cites W2109605149 @default.
- W1993313302 cites W2112828989 @default.
- W1993313302 cites W2116307022 @default.
- W1993313302 cites W2118123140 @default.
- W1993313302 cites W2119861496 @default.
- W1993313302 cites W2122215641 @default.
- W1993313302 cites W2123841894 @default.
- W1993313302 cites W2123898338 @default.
- W1993313302 cites W2124698989 @default.
- W1993313302 cites W2131665065 @default.
- W1993313302 cites W2131922750 @default.
- W1993313302 cites W2132971253 @default.
- W1993313302 cites W2138569385 @default.
- W1993313302 cites W2138819071 @default.
- W1993313302 cites W2139610873 @default.
- W1993313302 cites W2140471482 @default.
- W1993313302 cites W2141181211 @default.
- W1993313302 cites W2142604910 @default.
- W1993313302 cites W2142737108 @default.
- W1993313302 cites W2145808276 @default.
- W1993313302 cites W2146244421 @default.
- W1993313302 cites W2147201378 @default.
- W1993313302 cites W2148270523 @default.
- W1993313302 cites W2150175365 @default.
- W1993313302 cites W2150235237 @default.
- W1993313302 cites W2151421009 @default.
- W1993313302 cites W2155155371 @default.
- W1993313302 cites W2156780221 @default.
- W1993313302 cites W2157229558 @default.
- W1993313302 cites W2161609957 @default.
- W1993313302 cites W2163883689 @default.
- W1993313302 cites W2167959229 @default.
- W1993313302 cites W2168543510 @default.
- W1993313302 cites W3152191378 @default.
- W1993313302 cites W4254908845 @default.
- W1993313302 cites W4379138127 @default.
- W1993313302 cites W4380244223 @default.
- W1993313302 doi "https://doi.org/10.1016/j.agrformet.2012.05.017" @default.
- W1993313302 hasPublicationYear "2012" @default.
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