Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Drivers of soil carbon in residential ‘pure lawns’ in Auburn, Alabama
Abstract Urban land area is expanding worldwide and may contribute to long-term carbon (C) storage; however, little is known about potential drivers of soil C in urban areas. Residential areas are one of the largest urban land use zones and lawns can provide stable chronosequences for studying soil C dynamics. In residential lawns containing no trees (n = 23), the relationships between soil C and four potential drivers [home age (1–51 years), yard maintenance practices (fertilization, irrigation, and bagging or mulching lawn clippings), soil nitrogen (N) and soil texture] were investigated. Soil C increased with home age at 0–15 cm depth by 0.026 kg C $ m^{−2} $ $ yr^{−1} $, declined by −0.011 kg C $ m^{−2} $ $ yr^{−1} $ at 15–30 cm depth, and was stable at 30–50 cm depth. Soil C had a positive relationship with soil N (R2 = 0.55) at the 0–15 cm depth. Soil C and N were not related to yard maintenance practices or soil texture. The low soil C sequestration rate and limited relationships between soil C and home age, yard maintenance, soil N and soil texture may have resulted from the positive influence of Auburn’s humid, subtropical climate on residue decomposition.
Drivers of soil carbon in residential ‘pure lawns’ in Auburn, Alabama
Abstract Urban land area is expanding worldwide and may contribute to long-term carbon (C) storage; however, little is known about potential drivers of soil C in urban areas. Residential areas are one of the largest urban land use zones and lawns can provide stable chronosequences for studying soil C dynamics. In residential lawns containing no trees (n = 23), the relationships between soil C and four potential drivers [home age (1–51 years), yard maintenance practices (fertilization, irrigation, and bagging or mulching lawn clippings), soil nitrogen (N) and soil texture] were investigated. Soil C increased with home age at 0–15 cm depth by 0.026 kg C $ m^{−2} $ $ yr^{−1} $, declined by −0.011 kg C $ m^{−2} $ $ yr^{−1} $ at 15–30 cm depth, and was stable at 30–50 cm depth. Soil C had a positive relationship with soil N (R2 = 0.55) at the 0–15 cm depth. Soil C and N were not related to yard maintenance practices or soil texture. The low soil C sequestration rate and limited relationships between soil C and home age, yard maintenance, soil N and soil texture may have resulted from the positive influence of Auburn’s humid, subtropical climate on residue decomposition.
Drivers of soil carbon in residential ‘pure lawns’ in Auburn, Alabama
Huyler, Ann (Autor:in) / Chappelka, Arthur H. (Autor:in) / Prior, Stephen A. (Autor:in) / Somers, Greg L. (Autor:in)
Urban Ecosystems ; 17
2013
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
BKL:
43.31
Naturschutz
/
42.90$jÖkologie: Allgemeines
/
43.31$jNaturschutz
/
42.90
Ökologie: Allgemeines
/
74.12
Stadtgeographie, Siedlungsgeographie
/
74.12$jStadtgeographie$jSiedlungsgeographie
Comprehensive Plan, Auburn, Alabama
NTIS | 1968
Goodwyn, Mills and Cawood Auburn High School, Performing Arts Center Auburn, Alabama
British Library Online Contents | 2011
Soil Carbon Dynamics in Residential Lawns Converted from Appalachian Mixed Oak Stands
| DOAJ | 2014
Evaluating a campus nitrogen budget for Auburn University, Alabama, USA
| Online Contents | 2015