**Douglas County Temporal Land Cover Mapping Project**

Version 1.6

11/03/05

Modified Anderson II Land Cover Classification System, derived from USGS
Professional Paper 964. Some categories have been added or modified to
suit cooperator and internal customer needs.

+-------+------------------------------+---------------+--------------+
| # **F | **Feature Name**             | ## RevPG      | **RevPG      |
| eatur |                              |  Minor1 Codes | Abbrev.**    |
| e #Nu |                              |               |              |
| mber  |                              |               | **Uppercase  |
| range |                              |               | = land use** |
|  CHAP |                              |               |              |
| TER** |                              |               |              |
+-------+------------------------------+---------------+--------------+
| # *   |                              |               |              |
| *1 Wa |                              |               |              |
| ter** |                              |               |              |
+-------+------------------------------+---------------+--------------+
| 1.1   | Water                        | 100000        | wtr          |
+-------+------------------------------+---------------+--------------+
| **2   |                              |               |              |
| Urban |                              |               |              |
| or    |                              |               |              |
| Deve  |                              |               |              |
| loped |                              |               |              |
| L     |                              |               |              |
| and** |                              |               |              |
+-------+------------------------------+---------------+--------------+
| 2.1   | Residential-low density      | 210000        | RES          |
+-------+------------------------------+---------------+--------------+
| 2.2   | Residential-medium density   | 211000        | SFR          |
+-------+------------------------------+---------------+--------------+
| 2.3   | Residential-high density     | 212000        | MFR          |
+-------+------------------------------+---------------+--------------+
| 2.4   | Non-Residential Developed    | 220000        | NRS          |
+-------+------------------------------+---------------+--------------+
| 2.5   | Mixed Urban or Developed     | 230000        | MXU          |
+-------+------------------------------+---------------+--------------+
| 2.7   | Golf Course                  | 227100        | GOF          |
+-------+------------------------------+---------------+--------------+
| 2.6   | Urban Vegetation / Park Land | 227200        | UPK          |
|       | / Cemeteries                 |               |              |
+-------+------------------------------+---------------+--------------+
| # **  |                              |               |              |
| 3 Bar |                              |               |              |
| ren L |                              |               |              |
| and** |                              |               |              |
+-------+------------------------------+---------------+--------------+
| 3.1   | Non-Mechanical Disturbed or  | 300000        | bar          |
|       | Transitional Areas           |               |              |
+-------+------------------------------+---------------+--------------+
| 3.2   | Mechanical Disturbed or      | 310000        | BTR          |
|       | Transitional Areas           |               |              |
+-------+------------------------------+---------------+--------------+
| 3.3   | Strip Mines, Quarries,       | 320000        | BQU          |
|       | Gravel Pits                  |               |              |
+-------+------------------------------+---------------+--------------+
| 3.4   | Bare Rock and Sand           | 330000        | brs          |
+-------+------------------------------+---------------+--------------+
| **4** | **Vegetated Land**           | 400000        | veg          |
+-------+------------------------------+---------------+--------------+
| 4.1   | Grassland / Natural          | 421000        | hn           |
|       | Herbaceous and Shrub Land    |               |              |
+-------+------------------------------+---------------+--------------+
| 4.2   | Forest Land                  | 411000        | for          |
+-------+------------------------------+---------------+--------------+
| 4.3   | Wetland                      | 432000        | wem          |
+-------+------------------------------+---------------+--------------+
| # **5 |                              |               |              |
|  Agri |                              |               |              |
| cultu |                              |               |              |
| ral L |                              |               |              |
| and** |                              |               |              |
+-------+------------------------------+---------------+--------------+
| 5.1   | Planted / Herbaceous         | 422000        | HP           |
+-------+------------------------------+---------------+--------------+

> 1 Water --
>
> Areas persistently covered with water, such as streams, canals, lakes,
> reservoirs, bays, estuaries, or oceans with less than 25-percent
> vegetated or developed cover, unless specifically included in another
> category.
>
> 2 Urban or Developed Land --
>
> Areas of the earth which have been improved by man. Includes all
> "built- up" and urban areas of the landscape. Does NOT include mining
> lands, crop lands, or waste-disposal areas (dumps). This land use
> category takes precedence over a land cover category when the criteria
> for more than one category are met.
>
> 2.1 *Residential-low density* -- this category contains single unit
> residential neighborhoods with greater than 1 acre lots. Areas include
> sparse residential land use such as farmsteads as well as rural
> residential and recreational subdivisions. These low-density areas can
> be found typically near small towns or at the periphery of urban
> expansion.
>
> 2.2 *Residential-med density* -- this category is comprised of
> residential urban / suburban neighborhoods with homes on one acre or
> smaller plot of land. Generally considered suburban areas that have
> uniform size and spacing of structures, linear driveways, and lawn
> areas. Plot of land may contain small buildings such as single-family
> housing units; farm out buildings, and large sheds.
>
> 2.3 *Residential- high density* -- all lands devoted to housing more
> than one family on a permanent or semi-permanent basis, group living
> situations, and their associated grounds. Includes; apartments,
> apartment complexes, duplexes, tri plexes, attached row houses,
> condominiums, trailer parks, retirement homes, and residential hotels.
>
> 2.4 *Non-residential developed* -- Any "developed" area or feature
> which is used for a purpose other than human habitation. Includes
> commercial, retail and services, offices, transportation (i.e., roads
> at least 125 feet wide), industrial sites, communications and
> utilities, airports, and schools.
>
> **2.5** *Mixed Urban* -- developed areas which have such a mixture of
> residential and non-residential features where no single feature meets
> the minimum mapping unit specification. This category is used when
> more than one-third of the features in an area do not fit into a
> single category. Often applicable in the central, urban-core area of
> cities.
>
> 2.6 *Golf Courses* -- Structures, associated grounds, driving ranges,
> and
>
> interspersed natural areas used for the game of golf.
>
> **2.7** *Urban Vegetation / Park Land / Cemeteries* -- 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. Characteristic land cover features: Parks,
> athletic fields, cemeteries, zoos, landscaped areas, and natural
> grasses occurring around airports and industrial sites.
>
> 3 Barren Land --
>
> Barren Land is land of limited ability to support life and in which
> less than one-third of the area has vegetation or other cover. In
> general, it is an area of thin soil, sand, or rocks. Vegetation, if
> present, is more widely spaced and scrubby than that in the Shrub and
> Brush category of Rangeland. Unusual conditions, such as a heavy
> rainfall, occasionally result in growth of a short- lived, more
> luxuriant plant cover. Wet, non-vegetated barren lands are included in
> the Non-forested Wetland category. Land may appear barren because of
> man\'s activities. When it may reasonably be inferred from the data
> source that the land will be returned to its former use, it is not
> included in the Barren category but classified on the basis of its
> site and situation. Agricultural land, for example, may be temporarily
> without vegetative cover because of cropping season or tillage
> practices. Similarly, industrial land may have waste and tailing
> dumps, and areas of intensively managed forestland may have clear-cut
> blocks evident. When neither the former nor the future use can be
> discerned and the area is obviously in a state of land use transition,
> it is considered to be Barren Land, in order to avoid inferential
> errors. Level II categories of Barren Land are: Dry Salt Flats,
> Beaches, Sandy Areas other than Beaches; Bare Exposed Rock; Strip
> Mines, Quarries, and Gravel Pits; Transitional Areas; and Mixed Barren
> Land.
>
> 3.1 *Non-Mechanical Disturbed or Transitional* -- Land in an altered
> non-vegetated state that, due to disturbances by non-mechanical means,
> is in transition from cover type to another. Non-mechanical
> disturbances include wind, floods, fire, animals and other related
> sources.
>
> 3.2 *Mechanical Disturbed or Transitional* - Land in an altered
> non-vegetated state that, due to disturbances by mechanical means, is
> in transition from one cover type to another. Mechanical disturbances
> including; forest clear cutting, earthmoving, scarping, chaining,
> reservoir draw down, or other related human-induced changes to the
> land surface.
>
> 3.3 *Quarries/Strip Mines/Gravel Pits -* Areas of extractive mining
> activities with significant surface disturbance. Vegetative cover and
> overburden are removed for the extraction of deposits such as coal,
> iron ore, limestone, copper, sand and gravel, or building and
> decorative stone. Current mining activity does not need to be
> identifiable. Inactive or unreclaimed mines and pits are included in
> this category until another land cover or land use has been
> established. Includes strip mines, open-pit mines, quarries, borrow
> pits, oil and gas drilling sites, and gravel pits with their
> associated structures, waste dumps, and stockpiles.
>
> 3.5 *Bare Rock/Sand* *-* Includes bare bedrock, natural sand beaches,
> sand bars, deserts, desert pavement, scarps, talus, slides, lava, and
> glacial debris.

4 Vegetated Land --

> Areas having generally 25% or more of the land or water with
> vegetation. Arid or semi-arid areas may have as little as 5%
> vegetation cover. Excluding Agricultural lands, which are considered
> land use.
>
> 4.1 *Grassland / Natural Herbaceous and Shrub Land -* Areas dominated
> by non-woody plants such as grasses, forbs, ferns, and weeds, either
> native and semi naturalized, or planted. Trees must account for less
> than 25% canopy cover while herbaceous plants dominate all existing
> vegetation. Land where the potential natural vegetation is
> predominantly grasses, grass-like plants, and forbs, and where natural
> herbivory was an important influence in its pre-civilization state.
> Pastures used for grazing animals are to be included under this
> category.
>
> [Example
> Photos](http://www.csc.noaa.gov/crs/lca/class_groups/gl.html) ![](media/image1.png){width="0.3229166666666667in"
> height="0.2708333333333333in"}
>
> Also includes areas where trees have less than 25% canopy cover and
> the existing vegetation is dominated by plants that have persistent
> woody stems, a relatively low growth habit, and which generally
> produce several basal shoots instead of a single shoot. Includes; true
> shrubs, trees that are small or stunted because of environmental
> conditions, desert scrub, and chaparral (usually less than 6 feet in
> height). In the eastern US, include former cropland or pasture lands,
> which are now covered by brush to the extent that they are no longer
> identifiable or usable as cropland or pasture. Clear-cut areas will
> exhibit a stage of shrub cover during the re-growth cycle. Some common
> species, which would be classified as shrub land, are mountain
> mahogany, sagebrush, and scrub oaks.
>
> [Example
> Photos](http://www.csc.noaa.gov/crs/lca/class_groups/ss.html) ![](media/image1.png){width="0.3229166666666667in"
> height="0.2708333333333333in"}
>
> 4.2 *Forest Land --* Tree covered land where trees form at least 10%
> of the canopy cover. The differences between trees and shrubs are
> based on specific type, if known, and height. Generally, if the
> vegetation type cannot be determined with additional, then the height
> of the vegetation will determine if the area will be classified as a
> forest or shrub land. Forest areas will be identified as woody
> vegetation greater than 6 feet tall.
>
> [Example
> Photos](http://www.csc.noaa.gov/crs/lca/class_groups/df.html) ![](media/image1.png){width="0.3229166666666667in"
> height="0.2708333333333333in"}[Example
> Photos](http://www.csc.noaa.gov/crs/lca/class_groups/ef.html) ![](media/image1.png){width="0.3229166666666667in"
> height="0.2708333333333333in"}[Example
> Photos](http://www.csc.noaa.gov/crs/lca/class_groups/mf.html) ![](media/image1.png){width="0.3229166666666667in"
> height="0.2708333333333333in"}
>
> 4.3 *Wetlands --* Areas dominated by saturated soils and often
> standing water. Wetlands vegetation is adapted to withstand long-term
> immersion and saturated, oxygen-depleted soils. These are divided into
> two salinity regimes: Paluatrine for freshwater wetlands and Estuarine
> for saltwater wetlands. These can be further divided into Forested,
> Shrub/Scrub, and Emergent wetlands. Unconsolidated Shores are also
> included as wetlands.

5 Agricultural Land

> *Herbaceous planted --* Areas or herbaceous vegetation planted and/or
> cultivated by humans for agronomic purposes in developed settings. The
> majority of vegetation in these areas is planted and/or maintained for
> the production of food, fiber, feed, or seed. Includes; sod farms,
> legumes, or grass-legume mixtures that are planted by humans for seed
> or hay crops or for landscaping purposes. Features considered under
> this category are row crops, vineyards, orchards, small grains,
> cultivated grasses, and fallow fields. Temporarily flood areas are
> included in this category as well as turf farms.
>
> [Example
> Photos](http://www.csc.noaa.gov/crs/lca/class_groups/cl.html) ![](media/image1.png){width="0.3229166666666667in"
> height="0.2708333333333333in"} [Example
> Photos](http://www.csc.noaa.gov/crs/lca/class_groups/ph.html) ![](media/image1.png){width="0.3229166666666667in"
> height="0.2708333333333333in"}