USGS | Land Portal

Localização

Sunrise Valley Drive Reston
Estados Unidos
US
Working languages: 
inglês

We provide science about the natural hazards that threaten lives and livelihoods, the water, energy, minerals, and other natural resources we rely on, the health of our ecosystems and environment, and the impacts of climate and land-use change. Our scientists develop new methods and tools to enable timely, relevant, and useful information about the Earth and its processes.

USGS Resources

Exibindo 1 - 3 de 3
Library Resource

Une Fenêtre sur un Monde en Pleine Évolution

Relatórios e Pesquisa
Dezembro, 2016
África Ocidental
Library Resource

A Window on a Changing World

Relatórios e Pesquisa
Dezembro, 2016
África Ocidental
Library Resource
Documentos e Resumos de Políticas
Outubro, 2002
Global

It is important for land managers and technical assistance specialists to be able to assess the health of rangelands in order to know where to focus management efforts. The complexity of ecological processes, and the inherent expense of directly measuring site integrity, suggests a need for an evaluation process that focuses instead on biological and physical attributes. In a collaborative effort, the USGS, ARS, BLM, and NRCS have jointly developed a system in which 17 indicators are used to gauge three attributes of rangeland health.

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