Abstract
We examined two types of groundwater-fed wetlands (riparian depressions and slopes) classified using the hydrogeomorphic (HGM) system. These wetland types had previously been shown to differ hydrologically. Our first objective was to determine if HGM was a useful structuring variable when examining aboveground decomposition dynamics (rate of mass loss and rate of nitrogen loss). Our second objective was to determine what soil variables were related to any differences in aboveground decomposition dynamics we might find regardless of HGM subclass. We used the litterbag field bioassay technique, and employed a standard litter type (Phalaris arundinacea) across all wetlands. Our results indicated that HGM would not readily serve as an adequate structuring variable for aboveground decomposition in riparian depressions and slope wetlands of central Pennsylvania. Discriminant analysis and classification and regression tree (CART) modeling found soil cation exchange capacity, soil pH, soil organic matter, and soil % nitrogen to be potentially important soil variables related to mass loss, and soil % nitrogen and soil pH to be potentially important variables related to nitrogen loss rate.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 335-349 |
| Number of pages | 15 |
| Journal | Aquatic Ecology |
| Volume | 43 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jun 1 2009 |
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All Science Journal Classification (ASJC) codes
- Ecology, Evolution, Behavior and Systematics
- Aquatic Science
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Aboveground decomposition dynamics in riparian depression and slope wetlands of central Pennsylvania. / Hough, Zaneta; Cole, Charles Andrew.
In: Aquatic Ecology, Vol. 43, No. 2, 01.06.2009, p. 335-349.Research output: Contribution to journal › Article
TY - JOUR
T1 - Aboveground decomposition dynamics in riparian depression and slope wetlands of central Pennsylvania
AU - Hough, Zaneta
AU - Cole, Charles Andrew
PY - 2009/6/1
Y1 - 2009/6/1
N2 - We examined two types of groundwater-fed wetlands (riparian depressions and slopes) classified using the hydrogeomorphic (HGM) system. These wetland types had previously been shown to differ hydrologically. Our first objective was to determine if HGM was a useful structuring variable when examining aboveground decomposition dynamics (rate of mass loss and rate of nitrogen loss). Our second objective was to determine what soil variables were related to any differences in aboveground decomposition dynamics we might find regardless of HGM subclass. We used the litterbag field bioassay technique, and employed a standard litter type (Phalaris arundinacea) across all wetlands. Our results indicated that HGM would not readily serve as an adequate structuring variable for aboveground decomposition in riparian depressions and slope wetlands of central Pennsylvania. Discriminant analysis and classification and regression tree (CART) modeling found soil cation exchange capacity, soil pH, soil organic matter, and soil % nitrogen to be potentially important soil variables related to mass loss, and soil % nitrogen and soil pH to be potentially important variables related to nitrogen loss rate.
AB - We examined two types of groundwater-fed wetlands (riparian depressions and slopes) classified using the hydrogeomorphic (HGM) system. These wetland types had previously been shown to differ hydrologically. Our first objective was to determine if HGM was a useful structuring variable when examining aboveground decomposition dynamics (rate of mass loss and rate of nitrogen loss). Our second objective was to determine what soil variables were related to any differences in aboveground decomposition dynamics we might find regardless of HGM subclass. We used the litterbag field bioassay technique, and employed a standard litter type (Phalaris arundinacea) across all wetlands. Our results indicated that HGM would not readily serve as an adequate structuring variable for aboveground decomposition in riparian depressions and slope wetlands of central Pennsylvania. Discriminant analysis and classification and regression tree (CART) modeling found soil cation exchange capacity, soil pH, soil organic matter, and soil % nitrogen to be potentially important soil variables related to mass loss, and soil % nitrogen and soil pH to be potentially important variables related to nitrogen loss rate.
UR - http://www.scopus.com/inward/record.url?scp=67349201213&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67349201213&partnerID=8YFLogxK
U2 - 10.1007/s10452-008-9198-3
DO - 10.1007/s10452-008-9198-3
M3 - Article
AN - SCOPUS:67349201213
VL - 43
SP - 335
EP - 349
JO - Aquatic Ecology
JF - Aquatic Ecology
SN - 1386-2588
IS - 2
ER -