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  • 631.4  (1)
  • AWI Arctic Land Expedition; Carbon in Permafrost / Kohlenstoff im Permafrost; carbon turnover; CARBOPERM; CH4 flux; CLICCS; CliSAP; Cluster of Excellence: Climate, Climatic Change, and Society; CO2 flux; DATE/TIME; DEPTH, soil; Event label; Formation, turnover and release of carbon in Siberian permafrost landscapes; heterotrophic respiration; Integrated Climate System Analysis and Prediction; KoPF; Kur 4; Kur 6; Kur 7; Kur 9; L19_SF3; L19_SF6; L19_TM1; L19_TM2; LATITUDE; Lena 2019; LONGITUDE; Permafrost; RU-Land_2019_Lena; Siberian Arctic; SOIL; Soil profile; Station label; Temperature, soil  (1)
  • AWI_Envi; AWI_Perma; AWI Arctic Land Expedition; Bolshoy-Lyakhovsky_Island_2014; Bolshoy Lyakhovsky Island, East Siberia, Russia; Carbon dioxide, production, aerobic, CO2-C per mass soil organic carbon; Day of experiment; DEPTH, soil; Event label; L14-02; L14-05; LAND; Permafrost Research; Polar Terrestrial Environmental Systems @ AWI; RU-Land_2014_BolshoyLyakhovsky; Sample ID; Sampling/measurement on land  (1)
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  • 1
    Publication Date: 2024-04-25
    Keywords: AWI_Envi; AWI_Perma; AWI Arctic Land Expedition; Bolshoy-Lyakhovsky_Island_2014; Bolshoy Lyakhovsky Island, East Siberia, Russia; Carbon dioxide, production, aerobic, CO2-C per mass soil organic carbon; Day of experiment; DEPTH, soil; Event label; L14-02; L14-05; LAND; Permafrost Research; Polar Terrestrial Environmental Systems @ AWI; RU-Land_2014_BolshoyLyakhovsky; Sample ID; Sampling/measurement on land
    Type: Dataset
    Format: text/tab-separated-values, 550 data points
    Location Call Number Expected Availability
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  • 2
    Publication Date: 2024-06-12
    Description: The dataset comprises the active layer temperature profiles measured at different thaw slump soils in the Lena Delta, Siberia, Russia in July 2019.
    Keywords: AWI Arctic Land Expedition; Carbon in Permafrost / Kohlenstoff im Permafrost; carbon turnover; CARBOPERM; CH4 flux; CLICCS; CliSAP; Cluster of Excellence: Climate, Climatic Change, and Society; CO2 flux; DATE/TIME; DEPTH, soil; Event label; Formation, turnover and release of carbon in Siberian permafrost landscapes; heterotrophic respiration; Integrated Climate System Analysis and Prediction; KoPF; Kur 4; Kur 6; Kur 7; Kur 9; L19_SF3; L19_SF6; L19_TM1; L19_TM2; LATITUDE; Lena 2019; LONGITUDE; Permafrost; RU-Land_2019_Lena; Siberian Arctic; SOIL; Soil profile; Station label; Temperature, soil
    Type: Dataset
    Format: text/tab-separated-values, 520 data points
    Location Call Number Expected Availability
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  • 3
    Publication Date: 2021-06-16
    Description: The application of biochar to agricultural soils to increase nutrient availability, crop production and carbon sequestration has gained increasing interest but data from field experiments on temperate, marginal soils are still under‐represented. In the current study, biochar, produced from organic residues (digestates) from a biogas plant, was applied with and without digestates at low (3.4 t ha−1) and intermediate (17.1 t ha−1) rates to two acidic and sandy soils in northern Germany that are used for corn (Zea mays L.) production. Soil nutrient availability, crop yields, microbial biomass and carbon dioxide (CO2) emissions from heterotrophic respiration were measured over two consecutive years. The effects of biochar application depended on the intrinsic properties of the two tested soils and the biochar application rates. Although the soils at the fallow site, with initially low nutrient concentrations, showed a significant increase in pH, soil nutrients and crop yield after low biochar application rates, a similar response was found at the cornfield site only after application of substantially larger amounts of biochar. The effect of a single dose of biochar at the beginning of the experiment diminished over time but was still detectable after 2 years. Whereas plant available nutrient concentrations increased after biochar application, the availability of potentially phytotoxic trace elements (Zn, Pb, Cd, Cr) decreased significantly, and although slight increases in microbial biomass carbon and heterotrophic CO2 fluxes were observed after biochar application, they were mostly not significant. The results indicate that the application of relatively small amounts of biochar could have positive effects on plant available nutrients and crop yields of marginal arable soils and may decrease the need for mineral fertilizers while simultaneously increasing the sequestration of soil organic carbon. Highlights A low rate of biochar increased plant available nutrients and crop yield on marginal soils. Biochar application reduced the availability of potentially harmful trace elements. Heterotrophic respiration showed no clear response to biochar application. Biochar application may reduce fertilizer need and increase carbon sequestration on marginal soils.
    Description: German Academic Exchange Service http://dx.doi.org/10.13039/501100001655
    Description: Institute Strategic Programme grants, “Soils to Nutrition”
    Keywords: 631.4 ; black carbon ; carbon sequestration ; corn ; digestate ; heterotrophic respiration ; marginal soils ; microbial biomass
    Type: article
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