Responses of roadside soil cation pools to vehicular emission deposition in southern California

Verfasser / Beitragende:
[Robert Rossi, Daniel Bain, G. Darrel Jenerette, Lorraine Clarke, Kat Wilson]
Ort, Verlag, Jahr:
2015
Enthalten in:
Biogeochemistry, 124/1-3(2015-05-01), 131-144
Format:
Artikel (online)
ID: 605516480
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024 7 0 |a 10.1007/s10533-015-0087-2  |2 doi 
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245 0 0 |a Responses of roadside soil cation pools to vehicular emission deposition in southern California  |h [Elektronische Daten]  |c [Robert Rossi, Daniel Bain, G. Darrel Jenerette, Lorraine Clarke, Kat Wilson] 
520 3 |a 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. 
540 |a Springer International Publishing Switzerland, 2015 
690 7 |a Soil acidification  |2 nationallicence 
690 7 |a Roadside soil  |2 nationallicence 
690 7 |a Urban soil  |2 nationallicence 
690 7 |a Potassium  |2 nationallicence 
690 7 |a Calcium  |2 nationallicence 
690 7 |a Magnesium  |2 nationallicence 
700 1 |a Rossi  |D Robert  |u Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA  |4 aut 
700 1 |a Bain  |D Daniel  |u Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA  |4 aut 
700 1 |a Darrel Jenerette  |D G.  |u Department of Botany and Plant Sciences, University of California, 900 University Ave, 92521, Riverside, CA, USA  |4 aut 
700 1 |a Clarke  |D Lorraine  |u Department of Botany and Plant Sciences, University of California, 900 University Ave, 92521, Riverside, CA, USA  |4 aut 
700 1 |a Wilson  |D Kat  |u Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA  |4 aut 
773 0 |t Biogeochemistry  |d Springer International Publishing  |g 124/1-3(2015-05-01), 131-144  |x 0168-2563  |q 124:1-3<131  |1 2015  |2 124  |o 10533 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Rossi  |D Robert  |u Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Bain  |D Daniel  |u Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Darrel Jenerette  |D G.  |u Department of Botany and Plant Sciences, University of California, 900 University Ave, 92521, Riverside, CA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Clarke  |D Lorraine  |u Department of Botany and Plant Sciences, University of California, 900 University Ave, 92521, Riverside, CA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wilson  |D Kat  |u Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Biogeochemistry  |d Springer International Publishing  |g 124/1-3(2015-05-01), 131-144  |x 0168-2563  |q 124:1-3<131  |1 2015  |2 124  |o 10533