DOI: 10.1007/s10533-015-0087-2
Scopus记录号: 2-s2.0-84930278419
论文题名: Responses of roadside soil cation pools to vehicular emission deposition in southern California
作者: Rossi R.J. ; Bain D.J. ; Darrel Jenerette G. ; Clarke L.W. ; Wilson K.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 124, 期: 2018-01-03 起始页码: 131
结束页码: 144
语种: 英语
英文关键词: Calcium
; Magnesium
; Potassium
; Roadside soil
; Soil acidification
; Urban soil
Scopus关键词: acidification
; calcium
; forest soil
; magnesium
; pH
; potassium
; roadside environment
; soil organic matter
; soil pollution
; traffic emission
; California
; United States
英文摘要: Roadside soils are heavily loaded with reactive nitrogen due to vehicular emissions, and these loadings likely acidify near-road soils. Cationic metals are mobilized from acidified soils during exchange reactions. Depletion of soil cation pools is well documented in forest soils, but poorly understood in roadside soils despite heavy nitrogen loadings to roadside environments and the continued growth of road networks. This study considers soil acidification impacts across gradients of soil chemistry, road network density, climate, and geology in southern California, clarifying acidification processes in near-road environments. Although there is no direct relationship between soil pH and road proximity, several elements (Al, Be, K) are depleted in near-road environments. The depletion of these elements occurs despite more sediment surface area and organic matter in near-road soils. In contrast, the weathering of road construction materials (i.e., concrete) replenishes soil Ca and Mg pools and likely buffers soil pH. These observed near-road patterns in soil chemistry point to the potential for mobilization of metal contamination from roadside environments. Improved understanding of metal dynamics in roadside soils is essential to the effective management of road-sourced nutrients and storm water, particularly as expanding road networks continue to affect wider areas. © 2015, Springer International Publishing Switzerland. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83498
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Department of Geology and Planetary Science, University of Pittsburgh, 4107 O’Hara St, Pittsburgh, PA, United States; Department of Botany and Plant Sciences, University of California, 900 University Ave, Riverside, CA, United States; Department of Geological Sciences, University of Florida, PO Box 112120, Gainesville, FL, United States
Recommended Citation:
Rossi R.J.,Bain D.J.,Darrel Jenerette G.,et al. Responses of roadside soil cation pools to vehicular emission deposition in southern California[J]. Biogeochemistry,2015-01-01,124(2018-01-03)