TY  - JOUR
AU  - Gocke, Martina I.
AU  - Guigue, Julien
AU  - Bauke, Sara L.
AU  - Barkusky, Dietmar
AU  - Baumecker, Michael
AU  - Berns, Anne E.
AU  - Hobley, Eleanor
AU  - Honermeier, Bernd
AU  - Kögel-Knabner, Ingrid
AU  - Koszinski, Sylvia
AU  - Sandhage-Hofmann, Alexandra
AU  - Schmidhalter, Urs
AU  - Schneider, Florian
AU  - Schweitzer, Kathlin
AU  - Seidel, Sabine
AU  - Siebert, Stefan
AU  - Skadell, Laura E.
AU  - Sommer, Michael
AU  - von Tucher, Sabine
AU  - Don, Axel
AU  - Amelung, Wulf
TI  - Interactive effects of agricultural management on soil organic carbon accrual: A synthesis of long-term field experiments in Germany
JO  - Geoderma
VL  - 438
SN  - 0016-7061
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2024-00139
SP  - 116616
PY  - 2023
AB  - Crop production often leads to soil organic carbon (SOC) losses. However, under good management practice it is possible to maintain and even re-accumulate SOC. We evaluated how different cropland management techniques affected SOC stocks in the topsoil (0–30 cm depth) of 10 long-term experiments (LTE) in Germany. We found that SOC stocks were particularly enhanced by mineral fertilization and organic amendments like straw incorporation and to a smaller degree by irrigation, but only slightly affected by the choice of preceding crops. In agreement with global meta-analyses, liming and reduced tillage had little or even negative effects on SOC storage, but effects also depended on fertilization. Management effects on SOC stocks were dependent on soil texture: sandy soils showed the lowest SOC stocks of 20.9 ± 2.3 (standard error of the mean) Mg ha− 1, but exhibited the largest relative response to different management options. Annual changes in SOC stocks ranged from − 3.0 ‰ with no mineral N fertilization, to + 6.1 ‰ with farmyard manure application, using the mineral-fertilized and limed treatment as reference. Even higher rates of up to + 10.6 ‰ yr− 1 were reached with the combination of irrigation and straw incorporation. Note that the contribution of organic amendments to SOC accrual and thus to climate change mitigation must be adjusted for reduction in SOC at sites from which straw was removed. Overall, the potential of agricultural management to influence and enhance SOC stocks is significant. This potential is controlled by soil type and land-use duration, is largest for sandy soils with overall lowest SOC stocks, and is characterized by antagonistic and synergistic effects of different management practices.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001051826500001
DO  - DOI:10.1016/j.geoderma.2023.116616
UR  - https://juser.fz-juelich.de/record/1020408
ER  -