<descriptor thcode="2"><thesaurus thcode="2" name="USGS Thesaurus" scope="Topics and methods of scientific study carried out by USGS, with product types, scientific disciplines, geologic time, and types of institutional structure and activities.  Broad and shallow, used to help people find scientific information." creator="U.S. Geological Survey" rights="Public domain" edition="2.0" date="2020-01-09" codetype="number" prefix="topic" uri="https://www2.usgs.gov/science/USGSThesaurus" tblname="term" nonpref="nonpref" relterm="relterm" root_code="1" contact="pschweitzer"><category><term thcode="25" code="29" name="distinct labels" parent="26" scope="Preferred labels (descriptor texts) are distinct within the thesaurus. A concept can be specified either by its unique identifier (code) or by the text of its descriptor."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="13" name="transitive" parent="12" scope="Narrower terms have an &quot;is a&quot; relationship with their broader terms, and generally can be described as part-of, type-of, or instance-of the broader term."/><term thcode="25" code="21" name="disciplines" parent="2" scope="Broad categories of human inquiry or activity, such as scientific disciplines."/><term thcode="25" code="20" name="methods" parent="2" scope="Actions taken to obtain or analyze information"/><term thcode="25" code="19" name="organizational functions" parent="2" scope="Things that organizations do, typically including various types of programs, projects, and services."/><term thcode="25" code="7" name="temporal" parent="2" scope="Terms indicate periods of time, such as chronostratigraphic units, named historical periods or intervals surrounding known historical events, or seasons."/><term thcode="25" code="5" name="theme" parent="2" scope="Terms indicate domains of human concern, such as scientific discipline, societal problems, or characteristics of earth, space, oceans, and living things."/><term thcode="25" code="29" name="distinct labels" parent="26" scope="Preferred labels (descriptor texts) are distinct within the thesaurus. A concept can be specified either by its unique identifier (code) or by the text of its descriptor."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="13" name="transitive" parent="12" scope="Narrower terms have an &quot;is a&quot; relationship with their broader terms, and generally can be described as part-of, type-of, or instance-of the broader term."/><term thcode="25" code="21" name="disciplines" parent="2" scope="Broad categories of human inquiry or activity, such as scientific disciplines."/><term thcode="25" code="20" name="methods" parent="2" scope="Actions taken to obtain or analyze information"/><term thcode="25" code="19" name="organizational functions" parent="2" scope="Things that organizations do, typically including various types of programs, projects, and services."/><term thcode="25" code="7" name="temporal" parent="2" scope="Terms indicate periods of time, such as chronostratigraphic units, named historical periods or intervals surrounding known historical events, or seasons."/><term thcode="25" code="5" name="theme" parent="2" scope="Terms indicate domains of human concern, such as scientific discipline, societal problems, or characteristics of earth, space, oceans, and living things."/></category><altlabel><altlabel>USGSThesaurus</altlabel><altlabel>USGSThesaurus</altlabel></altlabel></thesaurus><term thcode="2" 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."/><uf><usefor name="conservation"/><usefor name="environmental management"/><usefor name="environmental planning"/><usefor name="resource conservation"/><usefor name="resource restoration"/></uf><bt><term thcode="2" code="689" name="management methods" parent="734" scope="Techniques of judiciously controlling or directing resources for a predetermined goal."/><term thcode="2" code="734" name="methods" parent="1" scope="Techniques, methods, procedures, or strategies for research, management, collection, or analysis of scientific information in USGS."/><term thcode="2" code="1" name="Categories" scope="Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."/></bt><nt><term thcode="2" code="2047" name="beach nourishment" parent="776" scope="Transfer of sand from offshore areas to resupply beach areas that have been eroded."/><term thcode="2" code="107" name="biological population management" parent="776" scope="Judicious means of controlling or directing numbers and life conditions of organisms living in a specific locality to achieve a selected goal."/><term thcode="2" code="203" name="controlled flooding" parent="776" scope="The deliberate inundation of land or wetland, or an increase in river flow below dams for restoration or research purposes. Do not confuse with flood control."/><term thcode="2" code="316" name="ecosystem management" parent="776" scope="Means of controlling or directing human practices, species populations, and physical environment within an ecosystem to achieve a selected state of sustainability."/><term thcode="2" code="1357" name="fire control" parent="776" scope="Human intervention to restrict or prevent fires in forests and grasslands."/><term thcode="2" code="773" name="natural resource assessment" parent="776" scope="Estimation of the actual or potential value of natural materials and processes."/><term thcode="2" code="980" name="remediation" parent="776" scope="Methods for decontaminating, reclaiming, and restoring natural resources or reducing the effects of hazards."/><term thcode="2" code="1307" name="water resource management" parent="776" scope="Methods of controlling or directing resources and activities related to water for a predetermined goal."/><term thcode="2" 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."/></nt><rt><term thcode="2" code="2296" name="carbon mineralization" parent="1731" scope="A form of geologic carbon dioxide storage in which it reacts with rocks and minerals to form solid and stable carbonate materials.  Includes mineralization in mafic and ultramafic bedrock, mine tailings, and alkaline industrial wastes at the surface."/><term thcode="2" code="317" name="ecosystem monitoring" parent="375" scope="Recording, evaluating, and actively intervening over time in the interaction of living and nonliving elements in a specific environment."/><term thcode="2" code="777" name="natural resources" parent="1174" scope="Stocks of anything naturally occurring that have a beneficial use for man including economic, nutritional, recreational, aesthetic, and other benefits."/><term thcode="2" code="921" name="population and community ecology" parent="1174" scope="Interactions of a single species (population) or an association of different species (community) occupying a particular region, including their biotic and abiotic environments."/></rt></descriptor>