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Table 1 Site- and regional-specific descriptors of the element content in the EMS2015

From: Correlating elements content in mosses collected in 2015 across Germany with spatially associated characteristics of sampling sites and their surroundings

Descriptor Abbreviationa Unit
Atmospheric deposition
Average Cd, Hg, Pb deposition for the years 2013–2015 and 2015 (EMEP)b cd_dep1315, cd_dep15
hg_dep1315, hg_dep15
pb_dep1315, pb_dep15
[μg m−2 a−1]
Mean N-deposition of the years 2013–2015 and 2015 (EMEP)b N_1315, N_15 (see also explanations in Table 2) [mg m−2 a−1]
Mean N-deposition of the years 2013–2015 (LOTOS-EUROS)b LE_all_N (see also explanations in Table 2) [mg m−2 a−1]
Meteorology
Local main wind directionc,d MainWindDirection
Average annual rainfallb pre1315_gk [mm/a]
Average rainfall of the last 3 or 90 days (before sampling) pre3 days, pre90 days [mm]
Weather conditions c Weather
Geology/Soil/Relief
Soil type, humus species, exposurec, d SoilTexture
HumusSpecies
SlopeDirection
Source rock, soil typed  
Thickness of the humus layerc HumusLayer [cm]
Slope inclinationc SlopeGradient [°]
Orographic heightb, c elev_eu_gk [m ü. NN]
Background values of HM content (As, Cd, Cr, Cu, Hg, Ni, Pb, Sb, V, Zn) in topsoils (50th percentile)b HM_Ob50P [mg/kg]
Sample extraction
Moss species, vegetation, occurrence, lime particlesc MossSpecies
SamplingFrom
Frequency
VisibleDustParticles
Vegetation structure
Distance of the extraction site from the projection of the tree or shrub layer of surrounding forests and shrubs (minimum, maximum, mean value)c DistTreeCrownsAverage
DistTreeCrownsMin
DistTreeCrownsMax
DistShrubsAverage
DistShrubsMin
DistShrubsMax
[m]
Height of the tree layer of surrounding forests and shrubs (minimum, maximum, mean)c TsLayerHeightAverage
TsLayerHeightMin
TsLayerHeightMax
[m]
Degrees of coverage of the tree and shrub layere TreeCoverage
ShrubCoverage
TreeShrubCoverage
[%]
Leaf area indexe LAI (= sLAI), LAI2 (= wLAI)
Potential emission sources
Spatial density of surrounding land uses (agricultural, forestry, urban-industrial) in radii of 1, 5, 10, 25, 50, 75, 100, 150, 200, 250, 300 km around the moss sampling pointb agr1–300
for1–300,urb1
− 300
[%]
Population density in radii 5, 50, 100 km around the moss sampling pointb popdens5–100 Inhabitant
Distance to local emission sources (veg. free area, agricultural land, etc.), Surface area, Arable land, Stable, Detached house, Rural settlement, Urban settlement, Unstable. Road, small country road, large country/federal road, railway, motorway, industry with high chimney, small industry, waste incineration plant, landfill, thermal power plant, building site, raw material extractionc, d SDistNoneVegetationAreas
SDistAgriculturalAreas
SDistAnimalFarmingUnits
SDistPloughedAgriculturalFields
SDistSingleHouses, SDistVillage
SDistTown, SDistUnsealedRoads
SDistSmallPavedCountryRoads
SDistFederalRoads, SDistMotorways, SDistRailroadTracks
SDistIndustriesWithHighChimneys
SDistSmallIndustries
SDistWasteIncinerationFaculties
SDistDumpingGrounds
SDistCombustionEnergyPlants
SDistConstructionSites
SDistGravelPit
[m]
Distance to the sea (North Sea and Baltic Sea)b CDistSea [km]
Potential risk of erosion of arable soils by wind (1, 2, 5 km—radii)b pegwind_1–5 [0–5]
  1. EMEP: Cooperative programme for monitoring and evaluation of the long-range transmission of air pollutants in Europe
  2. LOTOS-EUROS: Open-source chemical transport model [22]
  3. aSee also explanation of the abbreviations below
  4. bPotential predictors derived from available data sources
  5. cAccompanying information collected in the field according to ICP [Vegetation [13]]
  6. dAccompanying information derived from generally available data sources in accordance with the Sampling Directive (ICP [Vegetation [13]])
  7. eVegetation structure measures derived from c and d [42]