Land cover maps provide information to help managers best understand the current landscape. By nature of their patchy distributions and frequently small extents wetlands, riparian habitats and rare habitat types can be the most frequently missed types. Mechanical disturbances include forest clear-cutting, earthmoving, scraping, chaining, reservoir drawdown, and other similar human-induced changes. For combinations where the NLCD 2011 cover class was not consistent we used the vegetation and LANDFIRE disturbance information to label that unique combination. The combination dataset allowed each analyst to visualize the distribution of the pixels within the un-assigned combinations and evaluate the potential source of difference between the two dates. 2006. The data series are used in a … 2011) boundary data derived from the USGS Watershed Boundary Dataset (USGS NGTOC 2011) was used to label a subset of the pixels in a combination to a new land cover class. For example, for pixels mapped as Atlantic Coastal Plain Dry and Dry-Mesic Oak Forest in the 2001 GAP map that were mapped as deciduous forest in the NLCD 2011 map, the original 2001 ecological system call was left unchanged. Land use and land cover are often related, but they have different meanings. As such, there are cases where the Ecological System land cover class may have remained “unchanged” but the general land cover class had changed between 2001 and 2011. The expression continues to be used by the United States Bureau of Land Management. Therefore, the 2001 and 2011 land cover maps should not be used to quantify change directly. Use 7zip or another compression program to open these files. Int. The New Zealand Land Cover Database (LCDB) is a multi-temporal, thematic classification of New Zealand's land cover. The NVC levels provide the user with a variety of options allowing the choice of making a map of the Continental U.S. with eleven classes at the NVC Class level to 583 classes at the Ecological system level. Land cover maps represent spatial information on different types (classes) of physical coverage of the Earth's surface, e.g. 2015), and 2010 LANDFIRE disturbance data (Nelson et al. The datasets were assembled by Inez Fung, Elaine Matthews, and associates during 1984-1991. Land-Cover data is a crucial reference dataset that informs a wide variety of activities ranging from environmental planning and protection, economic development, compliance monitoring, enforcement, and strategic decision making. to other Ecological Systems. After each analyst completed the update for a geoarea, a second individual reviewed the resulting land cover classification. Features used to delineate National Vegetation Classification (NVC) levels, Class: dominant general growth forms adapted to basic moisture, temperature, and/or substrate or aquatic, Subclass: global macroclimatic factors driven primarily by latitide and continental postion, or reflect overriding substrate or  aquatic condtions, Formation: global macroclimatic conditions as modified by altitide, seasonality of precipitation, substrates, hydrological conditions, Division:  continental differences in mesoclimate, geology, substrates, hydrology, disturbance regimes, Macrogroup: sub-continental to regional differences in mesoclimate, geology, substrates, hydrology, disturbance regimes, Group: regional differences in mesoclimate, geology, substrates, hydrology, disturbance regimes. Corine Land Cover (CLC) ist ein europaweiter Datensatz zur Landbedeckung. For land cover mapping, explanatory variables are the spectral and ancillary data sets and the response variable is the land cover classes (see Lowry et al. Data sources. The data are provided as a 30 m by 30 m raster. This information is important for decision makers, planners, researchers, private interests and others: U.S. Geological Survey Gap Analysis Program, 20160513, GAP/LANDFIRE National Terrestrial Ecosystems 2011: U.S. Geological Survey, https://doi.org/10.5066/F7ZS2TM0. Jimenez, S. Martinuzzi, S., W. A. gould, O. M. Ramos-González agencies and Ecological Management,. Updating before use or may be inappropriate for use Frederick Edward Clements that has its closest modern equivalent vegetation... Or disturbed classes 1: land cover ( CLC ) inventory is a pain various scales in! Provide information to label that unique combination were assembled by Inez Fung, Elaine,. 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