1. ABOUT THE DATASET -------------------- Title: Soil, infiltration and above-ground biomass data for agroforestry at Shillingford, UK, 2023 Creator(s): Josiah B. Judson[1], Pippa J. Chapman[1], Joseph Holden[1], Marcelo V. Galdos[2] Organisation(s): 1. University of Leeds, 2. Rothamsted Research Rights-holder(s):Unless otherwise stated, Copyright 2025 University of Leeds Publication Year: 2025 Description: Soil, above ground biomass and infiltration data collected from agroforestry fields and an adjacent, treeless control field at Shillingford, Devon in May 2023. Agroforestry tree rows were planted at 12m (2002) and 24m (2012) spacing. Sampling was undertaken in four locations relative to tree rows – in line with tree rows at center of row and 1m from nearest tree, perpendicular to tree rows and 1m from nearest tree (0.5m from alley edge in tree row), perpendicular to tree rows and 2m from nearest treee (0.5m from alley edge in alley) and in centre of alley. Soil was sampled at three intervals between 0 and 50cm depth. Tree height and DBH data were measured on five trees each selected at random from two tree rows in each agroforestry field. Infiltration data was collected at the same sample locations as soil data. Cite as: Judson, J. B., Chapman, P. J., Holden, J., Galdos, M. V. (2024): Soil, infiltration and above-ground biomass data for agroforestry at Shillingford, UK, 2023. University of Leeds [Dataset] https://doi.org/10.5518/1594. Related publication: Judson, J.B., Chapman, P.J., Holden, J., Galdos, M.V. (in review): Alley width and slope position influence soil carbon storage, nutrient dynamics and hydrology at a mature silvoarable site, SW England. 2. TERMS OF USE --------------- Copyright 2024 University of Leeds, Josiah Judson, Pippa Chapman, Joseph Holden, Marcelo Galdos. Unless otherwise stated, this dataset is licensed under a Creative Commons Attribution 4.0 International Licence: https://creativecommons.org/licenses/by/4.0/. 3. PROJECT AND FUNDING INFORMATION ---------------------------------- Title: Soil, infiltration and above-ground biomass data for agroforestry at Shillingford, UK, 2023 Dates: Jan 2023 - Dec 2024 Funding organisation: UKRI NERC[1], Rothamsted Research[2], Woodland Trust (CASE partner), University of Leeds Grant nos.: 1. NE/S007458/1, 2. BB/X010953/1; BBS/E/RH/230003B 4. CONTENTS ----------- File listing 1_soil_data.csv KEY: - ID_1: Agroforestry alley width. AF24 = 24m rows, AF12 = 12m rows. - ID_2: Slope position. U = upper, L = lower. - ID_3: Lateral position. R = row, A = alley. - ID_4: Lateral position. RC = row centre, RE = row edge, AE = alley edge, AC = alley centre. - Depth: Sample depth interval in cm. DESCRIPTORS: - Upper depth, lower depth, thickness (all in cm) VARIABLES: - SOC_pct: Soil organic carbon content (%). See related publication - total_N_pct: total nitrogen content (%). See related publication - BD_corr: bulk density, corrected for roots and stones >2mm diameter (g cm-3). See related publication - SOM_pct: soil organic matter content (%). See related publication - moisture_pct: moisture content (%). See related publication - NO3_N_mg_kg1: NO3-N content (mg kg-1). See related publication - plant_N_mg_kg1: total plant-available N content (mg kg-1). See related publication - PO4_P_mg_kg1: plant-available P content (mg kg-1). See related publication - ph_h2o: soil pH in water. See related publication - ph_cacl2: soil pH in CaCl2. See related publication - clay_pct: clay fraction (%). See related publication - silt_pct: silt fraction (%). See related publication - sand_pct: sand fraction (%). See related publication (Note raw data have not been adjusted for equivalent soil mass. See related publication for details.) 2_infiltration_data.csv KEY: - ID_1: Agroforestry alley width. AF24 = 24m rows, AF12 = 12m rows. - ID_2: Slope position. U = upper, L = lower. - ID_3: Lateral position. R = row, A = alley. - ID_4: Lateral position. RC = row centre, RE = row edge, AE = alley edge, AC = alley centre. - Replicate: replicate number. DESCRIPTORS: <none> VARIABLES: - ksat_mm_hr1: Saturated hydraulic conductivity (mm hr-1). See related publication. 3_tree_data.csv KEY: - ID_1: Agroforestry alley width. AF24 = 24m rows, AF12 = 12m rows. - Row: Tree row number. - Tree: Tree number. DESCRIPTORS: <none> VARIABLES: - dbh_cm: tree diameter at breast height (cm). See related publication. - height_m: tree height (m). See related publication. 5. METHODS ---------- For a detailed methodology, see related publication.