aspect - landform
climatic condition - climate
cover - plant population
cover class - plant population (needs to update definition)
disturbance type - land surface disturbance
dominant species - vegetation stratum
fire history - vegetation disturbance
growth form - plant population
growth stage - plant community
height class - plant population(needs to update definition)
homogeneity measure - plant community
landform element - landform
landform pattern - landform
rock outcrop lithology - land surface
second dominant species - vegetation stratum
slope - landform
slope class - landform
structural formation - vegetation
surface strew lithology - land surface
surface strew size - land surface
third dominant species - vegetation stratum