Description: Soil physical-biogeochemical analyses were carried out on profiles NEP1, NEP2 and NEP3. Soil TC and TN were determined by CNS analysis, and total organic carbon (TOC) was determined by the difference between total inorganic carbon (TIC) and TC. Carbonate (CaCO₃) content was measured volumetrically using a Calcimeter and on air-dried, sieved (< 2 mm) and ground (ball mill) samples. The pH-values were measured on samples of profiles NEP1, NEP2, NEP3, which had less than 2% CaCO₃ content. Stable isotope ratios of δ¹³C and δ¹⁵N were analysed for the differentiation of C3 and C4 plants and the cultivation of legumes. The analyses were performed on air-dried, sieved (< 2mm) and ground (ball mill) samples. For ¹³C analysis, the soil samples were decarbonised with 10% HCl. In the field, separate samples were collected for the NEP1 and NEP2 profiles (28 samples in total) for analysis of urease activity and microbial biomass carbon (Cmic). Samples were stored at -18°C. Urease activity (enzyme analysis) is used to provide information on the input of urea and animal excrement. The mutual relationship between urease and Cmic was used to show and understand the past and present input of urea into the soil.
Global identifier:
Doi(
"10.1594/PANGAEA.975262",
)
Measurements {
domain: Unspecified,
station: None,
measured_variables: [
"Event label",
"Latitude of event",
"Longitude of event",
"Sample code/label",
"Laboratory code/label",
"Depth, soil, minimum",
"Depth, soil, maximum",
"DEPTH, soil",
"Soil horizon",
"Color code HLS-system",
"Color description",
"Grain size description",
"Grain size description",
"Carbon, total",
"Nitrogen, total",
"pH",
"Calcium carbonate",
"Carbon, inorganic, total",
"Carbon, organic, total",
"Urease activity in nitrogen per dry mass of soil",
"Microbial biomass as carbon per soil dry mass",
"Urease activity in nitrogen per microbial biomass as carbon",
"δ13C",
"δ15N",
],
methods: [
"Carbon and nitrogen and sulfur (CNS) isotope element analyzer, Elementar, Vario EL III",
"Carbon and nitrogen and sulfur (CNS) isotope element analyzer, Elementar, Vario EL III",
"pH meter, WTW, pH 3310",
"Calcimeter, Royal Eijkelkamp, 08.53",
"Multimode Microplate Reader, Agilent Technologie, Bio Tek Synergy HTX Multimode Reader",
"Substrate-induced respiration method accoding to Beare et al. (1990)",
"Calculated",
"Elemental analyzer, Elementar, CHNOS Vario Isotope Cube EA in conjunction with isotope ratio mass spectrometer, Elementar, IsoPrime visION IRMS",
"Elemental analyzer, Elementar, CHNOS Vario Isotope Cube EA in conjunction with isotope ratio mass spectrometer, Elementar, IsoPrime visION IRMS",
],
}
Dataset
Origins: /Wissenschaft/PANGAEA
Tags: Calciumcarbonat ? Tierhaltungsanlage ? Gesamter organischer Kohlenstoff ? Kohlenstoff ? Anorganisch gebundener Kohlenstoff ? Geografische Koordinaten ? Exkrement ? Gesamtkohlenstoff ? Gesamtstickstoff ? Bodenprobe ? Bodenhorizont ? Bodenuntersuchung ? Mühle ? Biomasse ? CaCO₃ ? Eger River ? Eger floodplain ? Nördlingen ? Southern Germany ? floodplain deposits ? microbial biomass carbon ? overbank silt-clay deposition ? pH ? stable isotope ratios ? urease activity ?
Region: Southern Germany
Bounding boxes: 10.511505° .. 10.512653° x 48.867173° .. 48.868228° 10.71652° .. 10.71652° x 48.58781° .. 48.58781°
License: cc-by/4.0
Language: Englisch/English
Issued: 2025-03-27
Modified: 2025-03-27
Time ranges: 2023-04-03 - 2023-04-03
Accessed 1 times.