NDLI: Shrub species as indicators of wetland sedimentation

Content Provider	Springer Nature Link
Author	Johnston, Carol A.
Copyright Year	2003
Abstract	Shrub cover was quantified by species for a 1.9-ha shrub carr adjacent to White Clay Lake near Shawano, WI, USA and related to soil properties and sedimentation rates. Principal components analysis of soil characteristics distinguished two distinct groups: alluvial surface soils having organic matter contents less than 30 g/100g and histic surface soils having organic matter contents averaging 56 g/100g. The alluvial surface soils were on slightly elevated natural levees along a relict stream bed that had received 1.3 cm/yr of silty sediments from agricultural runoff. Alluvial surface soils had twice the bulk density and organic P concentrations, nearly three times the reactive P, and 4.5 times the NO$_{3}$-N concentrations of histic surface soils. Total shrub cover and shrub overlap was significantly greater on the alluvial surface soils, but there was no difference between the two soil groups in proportion of open space, suggesting that the increased total shrub cover on alluvial surface soils was due to increased shrub layering rather than infilling of canopy gaps. Shrub diversity was greater on the alluvial surface soils: average shrub species richness per 30.5 m line segment was five species on alluvial surface soils as opposed to three species on histic surface soils. Four willow species were strongly associated with the alluvial surface soils and may serve as indicators of sediment deposition:Salix discolor, S. eriocephala, S. interior, andS. lucida. The most common shrub species present,Cornus sericea spp.sericea andSalix petiolaris, were poor indicators of soil contitions within the wetland.
Starting Page	911
Ending Page	920
Page Count	10
File Format	PDF
ISSN	02775212
Journal	Wetlands
Volume Number	23
Issue Number	4
e-ISSN	19436246
Language	English
Publisher	Springer Netherlands
Publisher Date	2003-01-01
Publisher Institution	Society of Wetland Scientists
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	shrub carr Salix spp. Cornus spp. woody cover alluvial histic sedimentation Wisconsin Freshwater & Marine Ecology Environmental Management Ecology Hydrogeology Coastal Sciences Landscape Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Environmental Chemistry

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