DOI: 10.1016/j.foreco.2013.03.012
Scopus记录号: 2-s2.0-84876796968
论文题名: Influences on the spatial pattern of soil carbon and nitrogen in forested and non-forested riparian zones in the Atlantic Coastal Plain of the Delaware River Basin
作者: Bedison J.E. ; Scatena F.N. ; Mead J.V.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 302 起始页码: 200
结束页码: 209
语种: 英语
英文关键词: Atlantic Coastal Plain
; Carbon
; Delaware River
; Nitrogen
; Riparian
; Soil
Scopus关键词: Atlantic Coastal Plain soils
; Coastal plain
; Delaware river
; Eastern north america
; Landscape characteristic
; Multivariate regression trees
; Riparian
; Riparian zone soils
; Carbon
; Coastal zones
; Forestry
; Geographic information systems
; Lakes
; Landforms
; Nitrogen
; Regression analysis
; Rivers
; Watersheds
; Soils
; coastal plain
; earthworm
; forest cover
; forest floor
; GIS
; land cover
; regression analysis
; riparian forest
; riparian zone
; soil carbon
; soil nitrogen
; soil surface
; soil type
; spatial analysis
; stream
; unsaturated medium
; watershed
; Carbon
; Forestry
; GIS
; Lakes
; Nitrogen
; Regression Analysis
; Rivers
; Soil
; Water Sheds
; Delaware River
; New Jersey
; Pennsylvania
; United States
英文摘要: This study investigated the landscape characteristics that influence C and N in unsaturated surface soils of riparian zones along 1st to 3rd order streams in the Atlantic Coastal Plain of the Delaware River Basin. Unsaturated surface soils (0-30cm) were sampled in forested and non-forested sites at 29 locations throughout S New Jersey and SE Pennsylvania. Overall, the soil %C and %N in forested and non-forested riparian sites studied in this investigation were comparable to similar riparian zone soils in eastern North America. However, the soil C and N contents of these Atlantic Coastal Plain soils were 3 to 8-fold greater which underscores the value of these riparian soils as C pools. Soil C content (100.3±15.0Mgha-1) in forested riparian sites was consistently higher but not statistically different (P>0.05) from soil C content (90.6±12.1Mgha-1) in non-forested riparian sites. Likewise, neither soil N storage or the C:N ratio were different between the contrasting land covers but forested sites with forest floor organic horizons had significantly greater (82%, P=0.004) soil C storage than the non-forested sites. Of the forested sites, 70% did not have organic horizons. All of the forested sites without organic horizons had abundant earthworms and comparisons of sites with and without forest floor suggests that earthworms and the removal of native forest cover may be responsible for a loss of 75-93Mgha-1 of soil C from these riparian zones. Multivariate regression tree analysis was able to explain ≥50% of the variability in soil C and N and as much as 68% of the variability in the C:N ratio. The analysis indicated that watershed-scale land cover, local soil series, and elevation above the active channel had the greatest influence on C and N storage. Moreover, this analysis indicated that a combination of easily measured, reach-scale characteristics and GIS-based watershed-scale variables can be used to estimate regional riparian soil C pools and identify restoration sites with the potential to store soil C. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66540
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: University of Pennsylvania, Department of Earth and Environmental Science, 240 S. 33rd St., Philadelphia, PA 19104, United States; Langan Engineering and Environmental Services, Inc., 2700 Kelly Rd., Ste. 200, Warrington, PA 18976, United States; Watershed and Systems Ecology Section, Patrick Center for Environmental Research, The Academy of Natural Sciences of Drexel University, 1900 Benjamin Franklin Parkway, Philadelphia, PA 19103, United States
Recommended Citation:
Bedison J.E.,Scatena F.N.,Mead J.V.. Influences on the spatial pattern of soil carbon and nitrogen in forested and non-forested riparian zones in the Atlantic Coastal Plain of the Delaware River Basin[J]. Forest Ecology and Management,2013-01-01,302