Bouffaud Marie-Lara marie-lara.bouffaud@ufz.de 0000-0001-6112-2982 Helmholtz Centre for Environmental Research - UFZ UFZ http://www.ufz.de/ https://ror.org/000h6jb29 Herrmann Sylvie sylvie.herrmann@ufz.de 0000-0001-8220-3853 Helmholtz Centre for Environmental Research - UFZ UFZ http://www.ufz.de/ https://ror.org/000h6jb29 2026 Soil texture, soil physicochemical properties and climatic data from the PhytOakmeter plot DPFL_14 (Pfeiffhausen, Germany) dataset bundled publication https://doi.pangaea.de/10.1594/PANGAEA.993967 2026-09-04T13:03:05 PhytOakmeter (www.phytoakmeter.de) is a field platform using the Quercus robur oak clone DF159 outplanted since 2010. This platform is used to monitor the impact of climate change and land use management on the "soil - plant - interactor" complex. Sites from PhytOakmeter are located either in forest or grassland habitats and represent a wide range of environmental contexts with specific stressors. All sites are equipped with loggers measuring air and soil temperature and soil humidity. Soil cores have been collected to analyze their chemical and physical characteristic. The DPFL plot in Pfeiffhausen (Germany) started in 2014 with 13 oak trees outplanted over a 40m x 40m grassland plot. Soil and air temperature were measured since 2018, soil moisture was measured since 2019, and soil chemistry was assessed in the bulk soil and the root-affected zone of trees in 2016, 2020 and 2022. Soil porosity and texture were evaluated in 2020. 11.70619299999999 11.70619299999999 51.62988300000004 51.62988300000004 11.70619299999999 51.62988300000004 2016-09-09T00:00:00 2024-12-31T23:30:00 15 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels Location ID | Loc ID | Tree ID | measured with 10g soil + 25ml CaCl2 0,01M (1:2,5) | pH | Soil moisture | Nitrogen in ammonium | N-[NH4]+ | Nitrogen in nitrate | N-[NO3]- | 1:4  with 5g Boden + 20ml KCL 1M | Nitrogen, inorganic | N inorg | Hot water extraction 1:5 with 5g soil+ 25 ml distl. H2O | Carbon, organic, extractable in hot water | HWEC | Hot water extraction 1:5 with 5g soil+ 25 ml distl. H2O | Nitrogen, extractable in hot water | HWEN | Carbon, organic/nitrogen ratio, hot water | Corg/N HW | Cold water extraction 1:2 with 10 g soil + 20ml CaCl2 0,01M | Carbon, organic | OC | Nitrogen, extractable in cold water | CWEN | Carbon, organic/nitrogen ratio | Corg/N | Carbon, organic, total | TOC | Nitrogen, total | TN | Carbon, organic, total/Nitrogen, total ratio | TOC/TN | Depth from the sample was taken | Depth, top/min | Depth top | Repetition rate | Rep rate | Density, wet bulk | WBD | Porosity, soil, total | Poros soil tot | Organic content | Org cont | KÖHN analysis according to DIN ISO 11277 | Size fraction 0.063-0.020 mm, coarse silt | 63-20 µm gU | Grain size sieving/pipette [DIN ISO 11277:2002-08] | Size fraction 0.020-0.0063 mm, medium silt | 20-6.3 µm mU | Size fraction 0.0063-0.002 mm, fine silt | 6.3-2 µm fU | Clay | Size fraction 2.000-0.630 mm, coarse sand | 2000-630 µm | Size fraction 0.630-0.200 mm, medium sand | 630-200 µm | Size fraction 0.200-0.125 mm, fine sand | 200-125 µm | Minerals | Classification according to Bodenkundliche Kartieranleitung (KA5, 2005; ISBN 978-3-510-95920-4) | Texture | 0.15m depth | Permittivity, relative | Permittivity rel | 0.3m depth | 0.45m depth | Temperature, soil | T soil | Area/locality | Area | mean value at 0.6m height | Temperature, air | TTT | Temperature logger, Onset, HOBO, Pro v2, U23-004 | mean value at 0.15m depth | Temperature, ground | T ground Field measurements grassland In-Situ Measurements Long-term monitoring Oak clone DF159 PhytOakmeter Quercus robur method15652 method17376 param122887 param122888 param146440 param149030 param15373 param155319 param1674 param1675 param1676 param188012 param23 param2801 param2830 param2831 param2833 param3 param374 param4610 param502065 param502545 param508752 param5168 param527837 param54244 param542632 param546492 param546493 param546494 param546495 param546496 param546497 param67 param73 param764 param87410 param91183 pi110974 author110973 author110974 curlevel30 geocode1599 geocode1600 geocode1601 inst468 license21 term47104 term48090 term48143 term51140 term52401 term76155 term76165