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EROSION/SEDIMENTATION (68)
degradation, entrainment, erosion, landslides, sediment chemistry...
LANDSCAPE (79)
landscape ecology, landscape management, landscape patterns, reclamation/revegetation/restoration, reforestation...
FROZEN GROUND (59)
active layer, cryosols, ground ice, periglacial processes, permafrost...
SOILS (92)
calcium, carbon, cation exchange capacity, denitrification rate, electrical conductivity...
GEOMORPHOLOGY (60)
coastal landforms/processes, eolian landforms/processes, fluvial landforms/processes, glacial landforms/processes, karst landforms/processes...
SURFACE RADIATIVE PROPERTIES (84)
albedo, anisotropy, emissivity, reflectance, thermal properties...
LAND TEMPERATURE (73)
land heat capacity, land surface temperature, skin temperature...
TOPOGRAPHY (115)
contours, landforms, surface roughness, terrain elevation, topographic effects...
LAND USE/LAND COVER (126)
land cover, land productivity, land resources, land use classes...

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