{"thcode":2,"term":{"code":1318,"name":"watershed management","parent":776,"scope":"Controlling and directing the resources and activities associated with the land and streams of a drainage basin to maintain the supply and quality of water and prevent floods, erosions, and other destructive conditions."},"uf":[],"bt":[{"code":776,"name":"natural resource management","parent":689,"scope":"Using a combination of techniques to control or direct the use of resources and limit population size to reach a predetermined goal, such as sustainability."},{"code":689,"name":"management methods","parent":734,"scope":"Techniques of judiciously controlling or directing resources for a predetermined goal."},{"code":734,"name":"methods","parent":1,"scope":"Techniques, methods, procedures, or strategies for research, management, collection, or analysis of scientific information in USGS."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[],"rt":[{"code":353,"name":"erosion","parent":451,"scope":"The process whereby materials of the earth's crust are loosened, dissolved, or worn away and simultaneously moved from one place to another."},{"code":398,"name":"floods","parent":1667,"scope":"Relatively high water that overflows the natural or artificial banks of a stream or coastal area that submerges land not normally below water level."},{"code":1113,"name":"streamflow","parent":1667,"scope":"A type of channel flow, applied to a specific part of surface runoff in a stream, whether or not it is affected by diversion or regulation."}]}