Mark A Drummond (Former Employee)
Science and Products
Filter Total Items: 24
The changing southwest
This chapter describes important geographical and socio-economic characteristics and trends in the Southwest—such as population and economic growth and changes in land ownership, land use, and land cover—that provide the context for how climate change will likely affect the Southwest. The chapter also describes key laws and institutions relevant to adaptive management of resources.
Authors
David M. Theobald, William Travis, Mark A. Drummond, Eric Gordon, Michelle Betsill
Land-use and land-cover change in three corn belt ecoregions: Similarities and differences
Land use categorical changes, though not as numerous as one might suspect, vary by type within the three designated ecozones of the Corn Belt with the westernmost zone showing the most temporary change vis-a-vis the more permanent changes taking place in the eastern and central zones.
Authors
Roger F. Auch, Chris R. Laingen, Mark A. Drummond, Kristi Sayler, Ryan R. Reker, Michelle A. Bouchard, Jeffrey J. Danielson
Land-cover change in the conterminous United States from 1973 to 2000
Land-cover change in the conterminous United States was quantified by interpreting change from satellite imagery for a sample stratified by 84 ecoregions. Gross and net changes between 11 land-cover classes were estimated for 5 dates of Landsat imagery (1973, 1980, 1986, 1992, and 2000). An estimated 673,000 km2(8.6%) of the United States’ land area experienced a change in land cover at least one
Authors
Benjamin M. Sleeter, Terry L. Sohl, Thomas R. Loveland, Roger F. Auch, William Acevedo, Mark A. Drummond, Kristi Sayler, Stephen V. Stehman
Southern Rockies Ecoregion: Chapter 8 in Status and trends of land change in the Western United States--1973 to 2000
The Southern Rockies Ecoregion is a high-elevation mountainous ecoregion that covers approximately 138,854 km2 (53,612 mi2), including much of central Colorado and parts of southern Wyoming and northern New Mexico (fig. 1) (Omernik, 1987; U.S. Environmental Protection Agency, 1997). It abuts six other ecoregions: the Wyoming Basin and Colorado Plateaus Ecoregions on the north and west, the Arizona
Authors
Mark A. Drummond
An approach to assess land-cover trends in the conterminous United States (1973-2000)
No abstract available.
Authors
Roger F. Auch, Mark A. Drummond, Kristi Sayler, Alisa L. Gallant, William Acevedo
Land change variability and human-environment dynamics in the United States Great Plains
Land use and land cover changes have complex linkages to climate variability and change, biophysical resources, and socioeconomic driving forces. To assess these land change dynamics and their causes in the Great Plains, we compare and contrast contemporary changes across 16 ecoregions using Landsat satellite data and statistical analysis. Large-area change analysis of agricultural regions is ofte
Authors
Mark A. Drummond, Roger F. Auch, Krista A. Karstensen, Kristi Sayler, Janis L. Taylor, Thomas R. Loveland
Science and Products
Filter Total Items: 24
The changing southwest
This chapter describes important geographical and socio-economic characteristics and trends in the Southwest—such as population and economic growth and changes in land ownership, land use, and land cover—that provide the context for how climate change will likely affect the Southwest. The chapter also describes key laws and institutions relevant to adaptive management of resources.
Authors
David M. Theobald, William Travis, Mark A. Drummond, Eric Gordon, Michelle Betsill
Land-use and land-cover change in three corn belt ecoregions: Similarities and differences
Land use categorical changes, though not as numerous as one might suspect, vary by type within the three designated ecozones of the Corn Belt with the westernmost zone showing the most temporary change vis-a-vis the more permanent changes taking place in the eastern and central zones.
Authors
Roger F. Auch, Chris R. Laingen, Mark A. Drummond, Kristi Sayler, Ryan R. Reker, Michelle A. Bouchard, Jeffrey J. Danielson
Land-cover change in the conterminous United States from 1973 to 2000
Land-cover change in the conterminous United States was quantified by interpreting change from satellite imagery for a sample stratified by 84 ecoregions. Gross and net changes between 11 land-cover classes were estimated for 5 dates of Landsat imagery (1973, 1980, 1986, 1992, and 2000). An estimated 673,000 km2(8.6%) of the United States’ land area experienced a change in land cover at least one
Authors
Benjamin M. Sleeter, Terry L. Sohl, Thomas R. Loveland, Roger F. Auch, William Acevedo, Mark A. Drummond, Kristi Sayler, Stephen V. Stehman
Southern Rockies Ecoregion: Chapter 8 in Status and trends of land change in the Western United States--1973 to 2000
The Southern Rockies Ecoregion is a high-elevation mountainous ecoregion that covers approximately 138,854 km2 (53,612 mi2), including much of central Colorado and parts of southern Wyoming and northern New Mexico (fig. 1) (Omernik, 1987; U.S. Environmental Protection Agency, 1997). It abuts six other ecoregions: the Wyoming Basin and Colorado Plateaus Ecoregions on the north and west, the Arizona
Authors
Mark A. Drummond
An approach to assess land-cover trends in the conterminous United States (1973-2000)
No abstract available.
Authors
Roger F. Auch, Mark A. Drummond, Kristi Sayler, Alisa L. Gallant, William Acevedo
Land change variability and human-environment dynamics in the United States Great Plains
Land use and land cover changes have complex linkages to climate variability and change, biophysical resources, and socioeconomic driving forces. To assess these land change dynamics and their causes in the Great Plains, we compare and contrast contemporary changes across 16 ecoregions using Landsat satellite data and statistical analysis. Large-area change analysis of agricultural regions is ofte
Authors
Mark A. Drummond, Roger F. Auch, Krista A. Karstensen, Kristi Sayler, Janis L. Taylor, Thomas R. Loveland