area of developed space with low usage intensity developed, low intensity An area of a planet's surface which is primarily covered by cultivated or anthropically maintained vegetation and by constructed or manufactured objects and materials covering up to approximately half its extent. Such areas are used for low intensity purposes such as accommodating collections of single-family residential units. This area is in contact with an atmospheric column extending from the planetary boundary layer to the planet's exosphere with little to no physical obstruction. NLCD:22 According to the NLCD 2011, areas of developed space under low intensity usage are dominated by vegetation such as lawn grasses and include collections of single-family housing units. Further, it is asserted that "impervious surfaces", most likely referring to concrete and related substances, cover between than 20 - 49% of the area. Such thresholds - which are themselves fuzzy - are not strictly asserted in this definition. This class is in need of refinement, particularly in linking to other entities in the ontology. This would be helped by more clear listings of entities included in this classification. However, the class is suitable for use in annotating remotely sensed land types. nlcd2011 area of developed space