/* DATA DESCRIPTION: Citation: Schulz, Elke; Blagodatskaya, Evgenia; Goldmann, Kezia; Herrmann, Sylvie; Bouffaud, Marie-Lara (2026): Soil physicochemical properties of the plot DPFL_14 (Pfeiffhausen, Germany) in 2016, 2020 and 2022 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996484 (DOI registration in progress), In: Bouffaud, Marie-Lara; Herrmann, Sylvie (2026): Soil texture, soil physicochemical properties and climatic data from the PhytOakmeter plot DPFL_14 (Pfeiffhausen, Germany) [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993967 (DOI registration in progress) Abstract: As part of PhytOakmeter platform (www.phytoakmeter.de), soil chemical parameters were determined in 2016, 2020 and 2022. Soil pH was measured using a glass electrode in a 1:2.5 soil-to-0.01 M CaCl2 suspension after one hour of equilibration. Gravimetric soil moisture was assessed with a fully automated moisture analyzer (DBS60-3, KERN & SOHN GmbH, Balingen, Germany), here defined as soil moisture (MOI). Total nitrogen (TN) and total carbon (TC) contents in the soil were analyzed in triplicate through dry combustion using a Vario elemental analyzer (EL III, Elementar, Hanau, Germany), and the carbon-to-nitrogen ratio (TC/TN) was subsequently calculated from these values. To evaluate the potentially bioavailable soil organic carbon and nitrogen for microbial activity, hot water-extractable carbon and nitrogen (HWC and HWN, respectively) were determined following the methods of Ghani et al. (2003) and Schulz et al. (2011). Additionally, the labile organic carbon and nitrogen easily decomposable by soil microorganisms were measured as cold water-extractable carbon (CWC) and nitrogen (CWN) based on procedures described by Zsolnay (1996), Zakharova et al. (2015), and Schmidt et al. (2017). Ammonium and nitrate (NH4±N and NO3—N, respectively) were quantified, with their sum representing the total mineral nitrogen content (Nmin). Keyword(s): Carbon; Nitrogen; pH total scale; physiochemical parameters Coverage: LATITUDE: 51.629883 * LONGITUDE: 11.706193 DATE/TIME START: 2016-09-09T00:00:00 * DATE/TIME END: 2022-09-13T00:00:00 Event(s): PhytOakmeter_DPFL_14_SoilChemistry (DPFL_SoilChemistry) * LATITUDE: 51.629883 * LONGITUDE: 11.706193 * DATE/TIME START: 2016-09-09T00:00:00 * DATE/TIME END: 2022-09-13T00:00:00 * METHOD/DEVICE: Laboratory measurement Parameter(s): Location ID (Loc ID) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) Tree ID (Tree ID) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) DATE/TIME (Date/Time) * GEOCODE * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) pH (pH) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) * COMMENT: measured with 10g soil + 25ml CaCl2 0,01M (1:2,5) Soil moisture [%] (Soil moisture) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) Nitrogen in ammonium [mg/kg] (N-[NH4]+) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) Nitrogen in nitrate [mg/kg] (N-[NO3]-) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) Nitrogen, inorganic [mg/kg] (N inorg) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) * COMMENT: 1:4 with 5g Boden + 20ml KCL 1M Carbon, organic, extractable in hot water [mg/kg] (HWEC) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) * COMMENT: Hot water extraction 1:5 with 5g soil+ 25 ml distl. H2O Nitrogen, extractable in hot water [mg/kg] (HWEN) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) * COMMENT: Hot water extraction 1:5 with 5g soil+ 25 ml distl. H2O Carbon, organic/nitrogen ratio, hot water (Corg/N HW) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) * COMMENT: Hot water extraction 1:5 with 5g soil+ 25 ml distl. H2O Carbon, organic [mg/kg] (OC) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) * COMMENT: Cold water extraction 1:2 with 10 g soil + 20ml CaCl2 0,01M Nitrogen, extractable in cold water [mg/kg] (CWEN) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) * COMMENT: Cold water extraction 1:2 with 10 g soil + 20ml CaCl2 0,01M Carbon, organic/nitrogen ratio (Corg/N) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) * COMMENT: Cold water extraction 1:2 with 10 g soil + 20ml CaCl2 0,01M Carbon, organic, total [%] (TOC) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) Nitrogen, total [%] (TN) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) Carbon, organic, total/Nitrogen, total ratio (TOC/TN) * PI: Bouffaud, Marie-Lara (https://orcid.org/0000-0001-6112-2982, marie-lara.bouffaud@ufz.de) License: Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/) Status: Curation Level: Enhanced curation (URI: https://wiki.pangaea.de/wiki/Curation_levels) Size: 374 data points */ Loc ID Tree ID Date/Time pH Soil moisture [%] N-[NH4]+ [mg/kg] N-[NO3]- [mg/kg] N inorg [mg/kg] HWEC [mg/kg] HWEN [mg/kg] Corg/N HW OC [mg/kg] CWEN [mg/kg] Corg/N TOC [%] TN [%] TOC/TN DPFL DPFL_14-DF-11 2016-09-09 7.220 6.72 5.21 1.90 7.11 1564.36 164.07 9.53 91.58 8.92 10.27 3.31 0.19 17.07 DPFL DPFL_14-DF-12 2016-09-09 8.020 5.51 4.31 1.05 5.36 1746.68 172.79 10.11 99.12 7.61 13.02 3.33 0.20 16.41 DPFL DPFL_14-DF-4 2016-09-09 7.170 3.50 3.29 0.82 4.11 1428.21 126.42 11.30 102.59 7.49 13.69 2.93 0.17 17.13 DPFL DPFL_14-DF-5 2016-09-09 7.850 3.96 3.29 1.15 4.45 1353.11 125.40 10.79 102.22 8.55 11.95 2.77 0.18 15.02 DPFL DPFL_14-DF-6 2016-09-09 7.180 6.72 3.01 0.38 3.39 1155.91 114.07 10.13 73.45 5.26 13.96 2.19 0.15 14.24 DPFL DPFL_14-DF-7 2016-09-09 7.910 6.70 3.29 1.39 4.68 1323.81 134.21 9.86 89.40 7.07 12.64 2.86 0.19 15.40 DPFL 2016-09-09 7.160 4.10 3.24 0.22 3.46 1502.03 145.28 10.34 100.89 7.83 12.89 2.70 0.17 15.93 DPFL 2016-09-09 7.890 4.27 3.43 0.33 3.76 1478.63 143.46 10.31 124.33 8.87 14.01 2.83 0.18 15.56 DPFL 2016-09-09 7.160 7.36 3.93 1.45 5.38 1298.36 143.24 9.06 83.19 7.29 11.41 2.77 0.19 14.59 DPFL 2016-09-09 7.220 6.26 3.64 0.88 4.52 1518.81 155.94 9.74 101.77 8.03 12.67 3.42 0.19 17.72 DPFL DPFL_14-DF-11 2020-09-09 7.029 11.16 4.52 3.93 8.46 1278.00 95.27 13.40 178.70 16.17 11.10 3.39 0.21 16.10 DPFL DPFL_14-DF-12 2020-09-09 7.212 10.77 3.92 4.06 7.98 1238.00 92.59 13.40 174.80 15.92 11.00 3.19 0.19 16.40 DPFL DPFL_14-DF-6 2020-09-09 7.290 9.60 3.43 3.05 6.48 1172.00 83.30 14.10 183.30 14.18 12.90 2.68 0.20 13.20 DPFL DPFL_14-DF-7 2020-09-09 7.320 10.85 3.29 3.80 7.08 1258.00 93.07 13.50 199.00 16.48 12.10 2.74 0.19 14.40 DPFL 2020-09-09 7.248 10.25 4.73 4.67 9.40 1435.00 100.94 14.20 203.50 19.08 10.70 3.33 0.19 17.10 DPFL 2020-09-09 7.098 12.06 5.31 4.74 10.04 1163.00 87.96 13.20 172.80 16.65 10.40 2.68 0.19 13.90 DPFL 2020-09-09 7.233 8.34 3.93 5.78 9.71 1197.00 88.48 13.50 197.40 17.79 11.10 3.20 0.19 16.50 DPFL DPFL_14-DF-6 2022-09-13 7.200 11.53 7.43 2.57 10.01 1061.00 73.39 14.50 136.60 11.11 12.30 2.35 0.18 12.99 DPFL DPFL_14-DF-7 2022-09-13 7.210 10.99 8.98 4.34 13.33 1163.00 83.27 14.00 150.30 14.99 10.00 2.64 0.21 12.77 DPFL DPFL_14-DF-11 2022-09-13 7.220 11.01 12.39 2.84 15.23 1341.00 90.53 14.80 169.90 16.51 10.30 3.35 0.21 16.20 DPFL DPFL_14-DF-12 2022-09-13 7.320 11.52 8.58 2.62 11.20 1195.00 83.86 14.20 142.70 12.69 11.20 2.97 0.17 17.08 DPFL 2022-09-13 7.320 10.52 10.14 37.61 47.75 1311.00 102.80 12.80 172.50 40.57 4.30 3.33 0.21 15.93 DPFL 2022-09-13 7.250 12.79 8.27 4.38 12.65 1076.00 78.34 13.70 138.60 14.76 9.40 2.97 0.23 13.09 DPFL 2022-09-13 7.290 11.37 7.64 5.16 12.79 1111.00 80.33 13.80 135.50 15.12 9.00 3.03 0.18 16.71