Soil organic carbon stocks in southeast Germany (Bavaria) as affected by land use, soil type and sampling depth

Global Change Biology - Tập 18 Số 7 - Trang 2233-2245 - 2012
Martin Wiesmeier1, Peter Spörlein2, Uwe Geuß2, Edzard Hangen2, Stephan Haug3, Arthur Reischl2, Bernd Schilling2, Margit von Lützow1, Ingrid Kögel‐Knabner1,4
1Chair of Soil Science Department of Ecology and Ecosystem Management Technische Universität München D‐85350 Freising‐Weihenstephan Germany
2Bayerisches Landesamt für Umwelt (LfU) D‐95030 Hof Germany
3TUM|Stat, Zentrum Mathematik Technische Universität München D‐85748 Garching Germany
4Institute for Advanced Study Technische Universität München Lichtenbergstr. 2a D‐85748 Garching Germany

Tóm tắt

AbstractPrecise estimations of soil organic carbon (SOC) stocks are of decided importance for the detection of C sequestration or emission potential induced by land use changes. For Germany, a comprehensive, land use–specificSOCdata set has not yet been compiled. We evaluated a unique data set of 1460 soil profiles in southeast Germany in order to calculate representativeSOCstocks to a depth of 1 m for the main land use types. The results showed that grassland soils stored the highest amount ofSOC, with a median value of 11.8 kg m−2, whereas considerably lower stocks of 9.8 and 9.0 kg m−2were found for forest and cropland soils, respectively. However, the differences between extensively used land (grassland, forest) and cropland were much lower compared with results from other studies in central European countries. The depth distribution ofSOCshowed that despite lowSOCconcentrations in A horizons of cropland soils, their stocks were not considerably lower compared with other land uses. This was due to a deepening of the topsoil compared with grassland soils. Higher grasslandSOCstocks were caused by an accumulation ofSOCin the B horizon which was attributable to a high proportion of C‐rich Gleysols within grassland soils. This demonstrates the relevance of pedogeneticSOCinventories instead of solely land use–based approaches. Our study indicated that cultivation‐inducedSOCdepletion was probably often overestimated since most studies use fixed depth increments. Moreover, the application of modelled parameters inSOCinventories is questioned because a calculation ofSOCstocks using different pedotransfer functions revealed considerably biased results. We recommendSOCstocks be determined by horizon for the entire soil profile in order to estimate the impact of land use changes precisely and to evaluate C sequestration potentials more accurately.

Từ khóa


Tài liệu tham khảo

10.1111/j.1365-2389.1973.tb00737.x

AD‐HOC AG Boden, 2005, Bodenkundliche Kartieranleitung

10.1111/j.1757-1707.2008.01001.x

10.1016/S0167-1987(99)00107-5

Baritz R, 2000, Forests and the national greenhouse gas inventory of Germany, Biotechnology, Agronomy, Society and Environment, 4, 267

10.1111/j.1365-2389.1996.tb01386.x

10.1007/s10021-008-9168-6

10.2136/sssaj2005.0500

10.1007/978-0-387-48536-2

10.1111/j.1600-0889.2010.00499.x

10.2136/sssabookser5.1.2ed.c15

10.1007/s10113-007-0024-6

10.1016/j.geoderma.2007.06.013

10.1111/j.1365-2486.2009.01940.x

10.1016/S0167-1987(98)00117-2

10.1016/j.geoderma.2010.01.002

10.1046/j.1354-1013.2002.00486.x

10.1016/j.still.2004.08.009

Harrison RB, 2011, Deep soil horizons: contribution and Importance to soil carbon pools and in assessing whole‐ecosystem response to management and global change, Forest Science, 57, 67, 10.1093/forestscience/57.1.67

Hartge KH, 1989, Die physikalische Untersuchung von Böden

10.1029/153GM08

IPCC, 2000, Land Use, Land‐Use Change, and Forestry

IPCC, 2003, Good Practice Guidance for Land Use, Land‐Use Change and Forestry

IUSS Working Group WRB 2006 FAO Rome

10.1007/BF00333714

10.5194/bg-2-15-2005

10.1890/1051-0761(2000)010[0423:TVDOSO]2.0.CO;2

Joneck M, 2006, Wissenschaftliche Grundlagen für den Vollzug der Bodenschutzgesetze in Bayern (GRABEN) – ein Projekt stellt sich vor, Bodenschutz, 2, 32

10.1111/j.1365-2389.2005.00728.x

10.1111/j.1365-2389.2004.00637.x

10.1016/j.agee.2004.03.006

10.1111/j.1365-2486.2005.001074.x

10.1016/j.geoderma.2004.11.001

10.1016/S0378-1127(02)00306-7

10.1007/s00374-009-0413-8

10.1002/jpln.200700047

10.5194/bg-8-1053-2011

10.1111/j.1365-2486.2010.02183.x

10.1002/jpln.200700132

10.1046/j.1354-1013.2001.00459.x

10.1002/jpln.200421441

10.1002/jpln.19861490206

10.1111/j.1365-2486.2011.02408.x

10.1046/j.1365-2486.2000.00308.x

10.1002/jpln.200900034

R Development Core Team, 2011, R: A Language and Environment for Statistical Computing

10.1097/00010694-198302000-00007

Riberio . PJ, 2001, geoR: a package for geostatistical analysis, R‐News, 1, 15

10.1007/s11104-010-0391-5

10.5194/bg-8-1193-2011

Schubert A, 2002, Bayerische Waldboden‐Dauerbeobachtungsflächen – Bodenuntersuchungen

Schubert A, 2010, Organisch gebundener Kohlenstoff im Waldboden, LWF Waldforschung aktuell, 78, 11

10.2136/sssaj1998.03615995006200050032x

10.1007/s10705-007-9090-x

10.1111/j.1365-2486.2005.001075.x

10.1111/j.1475-2743.2007.00135.x

10.1006/jema.2001.0473

Stolbovoy V, 2007, Soil Sampling Protocol to Certify the Changes of Organic Carbon Stock in Mineral Soil of the European Union

10.1111/j.1475-2743.2007.00092.x

Thông tin
Thông tin xuất bản

Global Change Biology

Tập 18 Số 7

2233-2245

Thông tin tác giả