Carbon and nitrogen mineralization in acidic, limed and calcareous agricultural soils: Apparent and actual effects

Bertrand, Isabelle; Delfosse, Olivier; Mary, Bruno

doi:10.1016/j.soilbio.2006.07.016

Cited by 185 publications

(84 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(11). This process of carbonate weathering by protons released from nitrification has been demonstrated by many studies, from the laboratory to the field (Barnes and Raymond, 2009;Bertrand et al, 2007;Biasi et al, 2008;Errin et al, 2006;Gandois et al, 2011;Hamilton et al, 2007;Oh and Raymond, 2006;Perrin et al, 2008;Semhi and Suchet, 2000;Song et al, 2017aSong et al, , 2011West and McBride, 2005). We have noted that the R w values in NH 4 HCO 3 and (NH 4 ) 2 CO 3 treatments are less than half those in the urea treatment despite adding the same amount of fertilizerderived NH 4 (approximately 1.07 mole).…”

Section: Ca-mg-p Treatmentssupporting

confidence: 60%

Impact of different fertilizers on carbonate weathering in a typical karst area, Southwest China: a field column experiment

et al. 2017

View full text Add to dashboard Cite

Abstract. Carbonate weathering, as a significant vector for the movement of carbon both between and within ecosystems, is strongly influenced by agricultural fertilization, since the addition of fertilizers tends to change the chemical characteristics of soil such as the pH. Different fertilizers may exert a different impact on carbonate weathering, but these discrepancies are as yet not well-known. In this study, a field column experiment was conducted to explore the response of carbonate weathering to the addition of different fertilizers. We compared 11 different treatments, including a control treatment, using three replicates per treatment. Carbonate weathering was assessed by measuring the weight loss of limestone and dolostone tablets buried at the bottom of soil-filled columns. The results show that the addition of urea, NH 4 NO 3 , NH 4 HCO 3 , NH 4 Cl and (NH 4 ) 2 CO 3 distinctly increased carbonate weathering, which was attributed to the nitrification of NH + 4 . The addition of Ca 3 (PO 4 ) 2 , Ca-Mg-P and K 2 CO 3 induced carbonate precipitation due to the common ion effect. The addition of (NH 4 ) 3 PO 4 and NaNO 3 had a relatively small impact on carbonate weathering in comparison to those five NH 4 -based fertilizers above. The results of NaNO 3 treatment raise a new question: the negligible impact of nitrate on carbonate weathering may result in an overestimation of the impact of N fertilizer on CO 2 consumption by carbonate weathering on the regional/global scale if the effects of NO 3 and NH 4 are not distinguished.

show abstract

Section: Ca-mg-p Treatmentssupporting

confidence: 60%

Impact of different fertilizers on carbonate weathering in a typical karst area, Southwest China: a field column experiment

et al. 2017

View full text Add to dashboard Cite

show abstract

“…This suggested that maize-C was the principal source of the respired CO 2 from the soil because its δ 13 C value was very similar to the value of the maize. However, the soil was slightly alkaline (pH 7.7), and consideration needs to be given to the influence of soil carbonate on the quantity and source of CO 2 in soils with a pH >6.7 (Bertrand et al 2007;Tamir et al 2011). Setia et al (2010) found that in soils with low carbonate and inorganic N contents, CO 2 -C emission was not affected by CaCO 3 addition.…”

Section: Discussionmentioning

confidence: 99%

Investigation of photosynthate-C allocation 27 days after 13C-pulse labeling of Zea mays L. at different growth stages

et al. 2013

View full text Add to dashboard Cite

Aims Pulse labeling of crops using 13 C is often employed to trace photosynthesized carbon (C) within crop-soil systems. However, few studies have compared the C distribution for different labeling periods. The overall aim of this study was to determine the length of the monitoring interval required after 13 C-pulse labeling to quantify photosynthate C allocation into plant, soil and rhizosphere respiration pools for the entire growing season of maize (Zea mays L.). Methods Pot grown maize was pulse-labeled with 13 CO 2 (98 at.%) at the beginning of emergence, elongation, heading and grainfilling growth stages. The routing of 13 C into shoot and root biomass, soil CO 2 flux and soil organic carbon (SOC) pools was monitored for 27-days after 13 C-pulse labeling at the beginning of each growth stage. Results The majority of the 13 C was recovered after 27 d in the maize shoots, i.e., 57 %, 53 %, 70 % and 80 %, at the emergence, elongation, heading, and grainfilling stages, respectively. More 13 C was recovered in the root biomass at elongation (27 %) compared to the least at the grainfilling stage (3 %). The amount recovered in the soil was the smallest pool of 13 C at emergence (2.3 %), elongation (3.8 %), heading and grainfilling (less than 2 %). The amount of 13 C recovered in rhizosphere respiration, i.e. 13 CO 2 , was greatest at emergence (26 %), and similar at the elongation, heading and grainfilling stages (~16 %). Conclusions At least 24 days is required to effectively monitor the recovery of 13 C after pulse labeling with 13 CO 2 for maize in plant and soil pools. The recovery of 13 C differed between growth stages and corresponded to the changing metabolic requirements of the plant, which indicated labeling for the entire growth season would more accurately quantify the C budget in plantsoil system.

show abstract

“…Furthermore, calcareous or Ca-rich Fig. 1 Occlusion and sorption co-stabilise soil organic carbon at all spatial scales, but this co-occurrence becomes more apparent at the nano-scale where they become operationally indistinguishable soils cover more than 30% of the Earth's surface (Bertrand et al 2007;Chen and Barak 1982) and basic soils account for at least 12% of the world's soil resources (Grünewald et al 2006). Ca 2?…”

Section: Ca-soc Interactionsmentioning

confidence: 99%

Calcium-mediated stabilisation of soil organic carbon

2017

View full text Add to dashboard Cite

Soils play an essential role in the global cycling of carbon and understanding the stabilisation mechanisms behind the preservation of soil organic carbon (SOC) pools is of globally recognised significance. Until recently, research into SOC stabilisation has predominantly focused on acidic soil environments and the interactions between SOC and aluminium (Al) or iron (Fe). The interactions between SOC and calcium (Ca) have typically received less attention, with fewer studies conducted in alkaline soils. Although it has widely been established that exchangeable Ca (Ca Exch ) positively correlates with SOC concentration and its resistance to oxidation, the exact mechanisms behind this relationship remain largely unidentified. This synthesis paper critically assesses available evidence on the potential role of Ca in the stabilisation of SOC and identifies research topics that warrant further investigation. Contrary to the common view of the chemistry of base cations in soils, chemical modelling indicates that Ca 2? can readily exchange its hydration shell and create inner sphere complexes with organic functional groups. This review therefore argues that both inner-and outer-sphere bridging by Ca 2? can play an active role in the stabilisation of SOC. Calcium carbonate (CaCO 3 ) can influence occluded SOC stability through its role in the stabilisation of aggregates; however, it could also play an unaccounted role in the direct sorption and inclusion of SOC. Finally, this review highlights the importance of pH as a potential predictor of SOC stabilisation mechanisms mediated by Al-or Fe-to Ca, and their respective effects on SOC dynamics.

show abstract

Carbon and nitrogen mineralization in acidic, limed and calcareous agricultural soils: Apparent and actual effects

Cited by 185 publications

References 30 publications

Impact of different fertilizers on carbonate weathering in a typical karst area, Southwest China: a field column experiment

Impact of different fertilizers on carbonate weathering in a typical karst area, Southwest China: a field column experiment

Investigation of photosynthate-C allocation 27 days after 13C-pulse labeling of Zea mays L. at different growth stages

Calcium-mediated stabilisation of soil organic carbon

Contact Info

Product

Resources

About