Responses of soil microbial biomass, nematode trophic groups, N-mineralization, and litter decomposition to disturbance events in the southern Appalachians

Wright, Christina J.; Coleman, David C.

doi:10.1016/s0038-0717(01)00128-6

Cited by 36 publications

(26 citation statements)

References 28 publications

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“…Observed decreases in DOC concentration are consistent with declines in streamwater DOC observed after clear-cutting an entire watershed (Meyer and Tate 1983). These decreases may have been a consequence of reduced root exudates and leachable organic matter in the litter layer, although no significant changes in soil carbon were found (Wright and Coleman 2002).…”

Section: Rhododendron Removalsupporting

confidence: 76%

“…No disruptions of the soil or Rhododendron root systems occurred during the understory removal. In a concurrent study on the site, microbial biomass measured quarterly from March 1994 to September 1997 on the Cut hillslope showed no major changes, ranging between 0.7 and 1.4 mg C g Ϫ1 dry soil in the top 5 cm of soil and between 0.5 and 0.8 mg C g Ϫ1 dry soil at a depth of 5-10 cm (Wright and Coleman 2002). In situ net N mineralization increased significantly in only one month (September 1996) following the cutting (Wright and Coleman 2002).…”

Section: Rhododendron Removalmentioning

confidence: 93%

“…In a concurrent study on the site, microbial biomass measured quarterly from March 1994 to September 1997 on the Cut hillslope showed no major changes, ranging between 0.7 and 1.4 mg C g Ϫ1 dry soil in the top 5 cm of soil and between 0.5 and 0.8 mg C g Ϫ1 dry soil at a depth of 5-10 cm (Wright and Coleman 2002). In situ net N mineralization increased significantly in only one month (September 1996) following the cutting (Wright and Coleman 2002). Base cations decreased rather than responding with an increase, as has been observed when significant nitrification occurs following vegetation disturbance (Likens and others 1970).…”

Section: Rhododendron Removalmentioning

confidence: 93%

“…Net N mineralization rates increased significantly on the Storm hillslope during the growing season that followed the hurricane impact (Wright and Coleman 2002). The likely reason for these growing-season responses was an increase in soil temperature, resulting in ammonification increases.…”

Section: Uprooting Of Canopy Vegetationmentioning

confidence: 99%

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Hillslope Nutrient Dynamics Following Upland Riparian Vegetation Disturbance

et al. 2003

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Section: Rhododendron Removalsupporting

confidence: 76%

Section: Rhododendron Removalmentioning

confidence: 93%

Section: Rhododendron Removalmentioning

confidence: 93%

Section: Uprooting Of Canopy Vegetationmentioning

confidence: 99%

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Hillslope Nutrient Dynamics Following Upland Riparian Vegetation Disturbance

et al. 2003

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“…Changed environmental conditions on the affected areas are expected to result in changed microhabitat conditions for living organisms (Bormann et al 1995, Ulanova 2000, Certini 2005, Kooch et al 2014 and, consequently, to be reflected in different responses of soil organisms. However, information about soil biota on windthrow-affected areas especially in longterm is scarce (Wright & Coleman 2002, Cerevková et al 2013, Urbanovičová et al 2014.…”

Section: Introductionmentioning

confidence: 99%

Soil microorganisms at the windthrow plots: the effect of post-disturbance management and the time since disturbance

Gömöryová¹,

Fleischer²,

Pichler³

et al. 2017

iForest

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Wind disturbance is a major natural driver of forest dynamics in a large part of Europe and can affect soil properties in different ways and for different time. The present study focuses on the effects of post-disturbance management of windthrow plots in the Tatra Mountains, Slovakia, on soil microorganisms ten years after the disturbance. Their comparison with the microbial characteristics at a new windthrow plot caused by strong wind in 2014 was also carried out. Three research plots differing in the way of their management after the windstorm in 2004 (EXT, salvage plot; FIR, salvage plot affected by fire; NEX, unsalvaged plot) and the plot destroyed by strong wind in May 2014 (REX) were used for study. Ten soil samples were taken from the mineral A-horizon (depth: 0-10 cm) at each plot in autumn 2014. In soil samples, soil chemical and microbial characteristics (microbial biomass C, basal and substrate-induced respiration, N-mineralisation, catalase activity, richness and diversity of soil microbial functional groups based on the Biolog approach) were determined. Ten years after the disturbance we still observed significant differences in microbial characteristics between FIR and the other plots, with higher microbial activity at the FIR, while no significant differences were found among the other plots. The results indicate that at a higher altitude the effect of fire on soil microorganisms is more distinct than removing or not removing of fallen trees and persists even over a decade.

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