bg-14-1003-2017.pdf 2,10MB
1000 Titel
  • Detecting small-scale spatial heterogeneity and temporal dynamics of soil organic carbon (SOC) stocks: a comparison between automatic chamber-derived C budgets and repeated soil inventories
1000 Autor/in
  1. Hoffmann, Mathias |
  2. Jurisch, Nicole |
  3. Garcia Alba, Juana |
  4. Albiac Borraz, Elisa |
  5. Schmidt, Marten |
  6. Huth, Vytas |
  7. Rogasik, Helmut |
  8. Rieckh, Helene |
  9. Verch, Gernot |
  10. Sommer, Michael |
  11. Augustin, Jürgen |
1000 LeibnizOpen
1000 Art der Datei
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2017-03-03
1000 Erschienen in
1000 Quellenangabe
  • 14: 1003-1019
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2017
1000 Lizenz
1000 Verlagsversion
  • |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • Carbon (C) sequestration in soils plays a key role in the global C cycle. It is therefore crucial to adequately monitor dynamics in soil organic carbon (ΔSOC) stocks when aiming to reveal underlying processes and potential drivers. However, small-scale spatial (10–30 m) and temporal changes in SOC stocks, particularly pronounced in arable lands, are hard to assess. The main reasons for this are limitations of the well-established methods. On the one hand, repeated soil inventories, often used in long-term field trials, reveal spatial patterns and trends in ΔSOC but require a longer observation period and a sufficient number of repetitions. On the other hand, eddy covariance measurements of C fluxes towards a complete C budget of the soil–plant–atmosphere system may help to obtain temporal ΔSOC patterns but lack small-scale spatial resolution. To overcome these limitations, this study presents a reliable method to detect both short-term temporal dynamics as well as small-scale spatial differences of ΔSOC using measurements of the net ecosystem carbon balance (NECB) as a proxy. To estimate the NECB, a combination of automatic chamber (AC) measurements of CO2 exchange and empirically modeled aboveground biomass development (NPPshoot) were used. To verify our method, results were compared with ΔSOC observed by soil resampling. Soil resampling and AC measurements were performed from 2010 to 2014 at a colluvial depression located in the hummocky ground moraine landscape of northeastern Germany. The measurement site is characterized by a variable groundwater level (GWL) and pronounced small-scale spatial heterogeneity regarding SOC and nitrogen (Nt) stocks. Tendencies and magnitude of ΔSOC values derived by AC measurements and repeated soil inventories corresponded well. The period of maximum plant growth was identified as being most important for the development of spatial differences in annual ΔSOC. Hence, we were able to confirm that AC-based C budgets are able to reveal small-scale spatial differences and short-term temporal dynamics of ΔSOC.
1000 Fachgruppe
  1. Umweltwissenschaften |
  2. Agrarwissenschaften |
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
1000 Label
1000 Förderer
  1. Brandenburg Ministry of Infrastructure and Agriculture (MIL)
  2. Federal Agency for Renewable Resources (FNR)
1000 Fördernummer
  1. -
  2. -
1000 Förderprogramm
  1. -
  2. CarboZALF
1000 Dateien
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6403314.rdf
1000 Erstellt am 2017-06-30T13:53:08.430+0200
1000 Erstellt von 25
1000 beschreibt frl:6403314
1000 Bearbeitet von 218
1000 Zuletzt bearbeitet Thu Jan 30 15:36:47 CET 2020
1000 Objekt bearb. Mon May 07 12:48:17 CEST 2018
1000 Vgl. frl:6403314
1000 Oai Id
  1. |
1000 Sichtbarkeit Metadaten public
1000 Sichtbarkeit Daten public
1000 Gegenstand von

View source