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United States Department of Agriculture

Agricultural Research Service

Research Project: Assessment, Conservation and Management of Rangelands in Transition

Location: Northwest Watershed Management Research

Title: An efficient sampling protocol for sagebrush/grassland monitoring

Authors
item Larson, Larry -
item Louhaichi, Mounir -
item Clark, Patrick
item Johnson, Douglas -

Submitted to: International Grasslands Congress
Publication Type: Proceedings
Publication Acceptance Date: February 22, 2013
Publication Date: September 15, 2013
Citation: Larson, L.L., Louhaichi, M., Clark, P., Johnson, D.E. 2013. An efficient sampling protocol for sagebrush/grassland monitoring. International Grasslands Congress. 2:877-878.

Interpretive Summary: Monitoring the health and condition of rangeland vegetation can be very time consuming and costly. An efficiency but rigorous sampling protocol is needed for monitoring sagebrush/grassland vegetation. A randomized sampling protocol was presented for geo-referenced, nadir photographs acquired using digital charting techniques in extensive rangeland areas (e.g., ecological sites). This protocol holds great potential for reducing the field time and labor costs which currently preclude resource managers from conducting full and rigorous assessments of rangeland health and condition.

Technical Abstract: Monitoring the health and condition of rangeland vegetation can be very time consuming and costly. An efficiency but rigorous sampling protocol is needed for monitoring sagebrush/grassland vegetation. A randomized sampling protocol was presented for geo-referenced, nadir photographs acquired using digital charting techniques in extensive rangeland areas (e.g., ecological sites). Digital charting allows for rapid field collection of imagery data and provides systematic coverage of the area of interest. Random sampling among the acquired imagery provides statistical rigor to the monitoring results. This random sampling protocol holds great potential for reducing the field time and labor costs which currently preclude resource managers from conducting full and rigorous assessments of rangeland health and condition.

Last Modified: 7/22/2014
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