{"thcode":3,"term":{"code":928,"name":"regions","parent":1,"scope":"(a) Large, indefinite portions of the earth's surface. (b) Specified districts or territories. (c) Areas of interest or activity; spheres. (d) Ecology. Parts of the earth characterized by distinctive animal or plant life. [Adapted from American Heritage Dic. of the English Language, 4th ed.]"},"uf":[],"bt":[{"code":1,"name":"Categories","parent":null,"scope":null}],"nt":[{"code":16,"name":"agricultural regions","parent":928,"scope":null},{"code":112,"name":"biogeographic regions","parent":928,"scope":"Geographic regions characterized chiefly by the dominant forms of plant life and the prevailing climate. [Adapted from American Heritage Dic. of the English Language, 4th ed.]"},{"code":212,"name":"climatic regions","parent":928,"scope":"Regions whose ecologic formations result from or are influenced by differences in climate. [Adapted from Glossary of Geology, 4th ed.]"},{"code":221,"name":"coastal zones","parent":928,"scope":"Strips of land (of indefinite width) that extend from the low-tide line inland to the first major change in landform features. [Adapted from Glossary of Geology, 4th ed.]"},{"code":347,"name":"economic regions","parent":928,"scope":null},{"code":599,"name":"land regions","parent":928,"scope":"Use for land areas distinguished from ocean areas as well as general land-based regions without a more specific type designation."},{"code":625,"name":"linguistic regions","parent":928,"scope":null},{"code":646,"name":"map regions","parent":928,"scope":null}],"rt":[{"code":755,"name":"ocean regions","parent":757,"scope":"Use for sub-regions of oceans and seas."}]}