| Code |
Definition |
| 11 |
Open Water - All areas of open water, generally with less than 25% cover or
vegetation or soil |
| 12 |
Perennial Ice/Snow - All areas characterized by a perennial cover of ice and/or
snow, generally greater than 25% of total cover. |
| 21 |
Developed, Open Space - Includes areas with a mixture of some constructed
materials, but mostly vegetation in the form of lawn grasses. Impervious surfaces
account for less than 20 percent of total cover. These areas most commonly include
large-lot single-family housing units, parks, golf courses, and vegetation planted in
developed settings for recreation, erosion control, or aesthetic purposes. |
| 22 |
Developed, Low Intensity -Includes areas with a mixture of constructed materials
and vegetation. Impervious surfaces account for 20-49 percent of total cover. These
areas most commonly include single-family housing units. |
| 23 |
Developed, Medium Intensity - Includes areas with a mixture of constructed
materials and vegetation. Impervious surfaces account for 50-79 percent of the total
cover. These areas most commonly include single-family housing units. |
| 24 |
Developed, High Intensity - Includes highly developed areas where people reside
or work in high numbers. Examples include apartment complexes, row houses and
commercial/industrial. Impervious surfaces account for 80 to 100 percent of the total
cover. |
| 31 |
Barren Land (Rock/Sand/Clay) - Barren areas of bedrock, desert pavement, scarps,
talus, slides, volcanic material, glacial debris, sand dunes, strip mines, gravel pits
and other accumulations of earthen material. Generally, vegetation accounts for less
than 15% of total cover. |
| 41 |
Deciduous Forest - Areas dominated by trees generally greater than 5 meters
tall, and greater than 20% of total vegetation cover. More than 75 percent of the tree
species shed foliage simultaneously in response to seasonal change. |
| 42 |
Evergreen Forest - Areas dominated by trees generally greater than 5 meters
tall, and greater than 20% of total vegetation cover. More than 75 percent of the tree
species maintain their leaves all year. Canopy is never without green foliage.
Enumerated_Domain_Value_Definition_Source: NLCD Legend Land Cover Class
Descriptions |
| 43 |
Mixed Forest - Areas dominated by trees generally greater than 5 meters tall,
and greater than 20% of total vegetation cover. Neither deciduous nor evergreen
species are greater than 75 percent of total tree cover. |
| 51 |
Dwarf Scrub - Alaska only areas dominated by shrubs less than 20 centimeters
tall with shrub canopy typically greater than 20% of total vegetation. This type is
often co-associated with grasses, sedges, herbs, and non-vascular vegetation. |
| 52 |
Shrub/Scrub - Areas dominated by shrubs; less than 5 meters tall with shrub
canopy typically greater than 20% of total vegetation. This class includes true
shrubs, young trees in an early successional stage or trees stunted from environmental
conditions. |
| 71 |
Grassland/Herbaceous - Areas dominated by grammanoid or herbaceous vegetation,
generally greater than 80% of total vegetation. These areas are not subject to
intensive management such as tilling, but can be utilized for grazing. |
| 72 |
Sedge/Herbaceous - Alaska only areas dominated by sedges and forbs, generally
greater than 80% of total vegetation. This type can occur with significant other
grasses or other grass like plants, and includes sedge tundra, and sedge tussock
tundra. |
| 73 |
Lichens - Alaska only areas dominated by fruticose or foliose lichens generally
greater than 80% of total vegetation. |
| 74 |
Moss - Alaska only areas dominated by mosses, generally greater than 80% of
total vegetation. |
| 81 |
Pasture/Hay - Areas of grasses, legumes, or grass-legume mixtures planted for
livestock grazing or the production of seed or hay crops, typically on a perennial
cycle. Pasture/hay vegetation accounts for greater than 20 percent of total
vegetation. |
| 82 |
Cultivated Crops - Areas used for the production of annual crops, such as corn,
soybeans, vegetables, tobacco, and cotton, and also perennial woody crops such as
orchards and vineyards. Crop vegetation accounts for greater than 20 percent of total
vegetation. This class also includes all land being actively tilled. |
| 90 |
Woody Wetlands - Areas where forest or shrub land vegetation accounts for
greater than 20 percent of vegetative cover and the soil or substrate is periodically
saturated with or covered with water. |
| 95 |
Emergent Herbaceous Wetlands - Areas where perennial herbaceous vegetation
accounts for greater than 80 percent of vegetative cover and the soil or substrate is
periodically saturated with or covered with water. |
