caa a22 4500 605516480 CHVBK 20210128100714.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s10533-015-0087-2 doi (NATIONALLICENCE)springer-10.1007/s10533-015-0087-2 Responses of roadside soil cation pools to vehicular emission deposition in southern California [Elektronische Daten] [Robert Rossi, Daniel Bain, G. Darrel Jenerette, Lorraine Clarke, Kat Wilson] 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. Springer International Publishing Switzerland, 2015 Soil acidification nationallicence Roadside soil nationallicence Urban soil nationallicence Potassium nationallicence Calcium nationallicence Magnesium nationallicence Rossi Robert Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA aut Bain Daniel Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA aut Darrel Jenerette G. Department of Botany and Plant Sciences, University of California, 900 University Ave, 92521, Riverside, CA, USA aut Clarke Lorraine Department of Botany and Plant Sciences, University of California, 900 University Ave, 92521, Riverside, CA, USA aut Wilson Kat Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA aut Biogeochemistry Springer International Publishing 124/1-3(2015-05-01), 131-144 0168-2563 124:1-3<131 2015 124 10533 https://doi.org/10.1007/s10533-015-0087-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10533-015-0087-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rossi Robert Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA aut NATIONALLICENCE 700 1- Bain Daniel Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA aut NATIONALLICENCE 700 1- Darrel Jenerette G. Department of Botany and Plant Sciences, University of California, 900 University Ave, 92521, Riverside, CA, USA aut NATIONALLICENCE 700 1- Clarke Lorraine Department of Botany and Plant Sciences, University of California, 900 University Ave, 92521, Riverside, CA, USA aut NATIONALLICENCE 700 1- Wilson Kat Department of Geology and Planetary Science, University of Pittsburgh, 4107 O'Hara St, 15260, Pittsburgh, PA, USA aut NATIONALLICENCE 773 0- Biogeochemistry Springer International Publishing 124/1-3(2015-05-01), 131-144 0168-2563 124:1-3<131 2015 124 10533