Over the past 30 years, Dr. Belnap’s work has focused on dryland and rangeland ecosystems. Because many types of land uses can reduce the fertility and stability of these ecosystems, her research focus on how these lands can be managed sustainably. Specifically, her work highlights the central role biological soil crusts play in dryland ecosystems.
She has also been actively engaged in studies on how climate change will affect drylands ecosystems and in developing adaptation options for people using and managing these lands. Dr. Belnap has been involved in many creative, successful, and cost-effective restoration efforts aimed at reducing soil erosion and restoring plant productivity using local materials and labor. Her research efforts have been conducted around the world, including Iceland, Australia, China, Mongolia, Antarctica, the western U.S., Kenya, Tanzania, Ethiopia, Zimbabwe, and South Africa. She has led many large interdisciplinary teams and excels at bringing people together, having published over 260 peer-reviewed articles and has had over 300 collaborators during her career. She travels extensively throughout the world, training federal, state, and private land managers/pastoralists on best management practices for dryland ecosystems. She has served on National Academy panels and participates in many other professional capacities as well. In 2008, she was recognized by the ESA as one of the most outstanding ecologists in the United States. In 2010 and 2013, she received awards as one of the outstanding women in science award from the US Department of Interior. In 2015, she was elected a Fellow of ESA.
Membership/Participation in Professional Societies
American Bryological and Lichenological Society
American Institute for Biological Sciences
Ecological Society of America (past Chair, Soil Ecology Section)
Ecological Society of America Governing Board
Soil Ecology Society (past President)
Soil Science Society of America
Science and Products
Southwest Energy Exploration, Development, and Reclamation (SWEDR)
Approximately 35% of the US and approximately 82% of DOI lands are “drylands” found throughout the western US. These lands contain oil, gas, oil shale, shale oil, and tar sand deposits and the exploration for and extraction of these resources has resulted in hundreds of thousands of operating and abandoned wells across the West. These arid and semi-arid lands have unique soil and plant communities...
Biological Soil Crust ("Biocrust") Science
Biological soil crusts (biocrusts) are commonly found on the soil surface in arid and semi-arid ecosystems (collectively called drylands). Biocrusts can consist of mosses, cyanobacteria, lichens, algae, and microfungi, and they strongly interact with the soil. These organisms or consortium of disparate organisms, depending on the specific biocrust, are important to the functioning of ecosystems...
Drylands are highly vulnerable to climate and land use changes: what ecosystem changes are in store?
Improper land use during drought has been a major driver of land degradation in drylands globally, especially in the western U.S. Increasing aridity in western U.S. drylands under future climates will exacerbate risks associated with drought and land use decisions. This project provides critical observational, experimental, and modelling evidence to support our DOI partners with decision processes...
Wind Erosion and Dust Emissions on the Colorado Plateau
Wind erosion of soils and dust emissions are a significant resource management challenge on the Colorado Plateau. Loss of topsoil and associated aeolian sediment (wind-driven sediment) movement can lead to reduced soil fertility as well as abrasion and burial of vegetation. Dust in the atmosphere poses a threat to human health, visual resources, and regional water supplies (due to interactions...
Long-Term Vegetation Change on the Colorado Plateau
The Colorado Plateau, centered around the four corners area of the Southwest, and includes much of Arizona, Utah, Colorado, and New Mexico, is a large and important component of U.S. drylands. This important home to mountains, desert basins, dramatic canyons, arid woodlands, and grasslands is also one of North America’s most rapidly warming hot spots, with rates of warming of up to 2-3° C within...
The Dry Valleys of Antarctica: Mapping the Effects of Human Trampling on Soils
Increasing numbers of people would like to visit the Dry Valleys of Antarctica. However, many nations have signed a treaty to protect the natural resources there as much as possible. Likely impacts include the aesthetic impact of long-lasting trails and increased wind erosion that deposits sediment on glaciers and sea ice. This project will identify areas able to withstand human trampling...
Chronic Drought Impacts on Colorado Plateau ecosystems (Rain-Out Experiment)
In drylands, chronic reductions in water availability (press-drought) through reduced precipitation and increased temperatures may have profound ecosystem effects, depending on the sensitivities of the dominant plants and plant functional types. In this study, we are examining the impacts of moderate, but long-term chronic drought using a network of 40 drought shelters on the Colorado Plateau...
Colorado Plateau Extreme Drought in Grassland Experiment (EDGE)
In drylands, short-term extreme droughts can have profound ecosystem effects, depending on the timing (seasonality) of drought and the sensitivities of the dominant plants and plant functional types. Past work suggests that cool season drought may disproportionately impact regionally important grass and shrub species. In this study, we are examining the impacts of extreme seasonal drought on...
Completing the dryland puzzle: creating a predictive framework for biological soil crust function and response to climate change
Drylands are integral to the Earth system and the present and future of human society. Drylands encompass more than 40% of the terrestrial landmass and support 34% of the world’s human population. Biocrusts are the “living skin” of Earth’s drylands, sometimes dominating the ground cover and figuring prominently in ecosystem structure and function. Biocrusts are a biological aggregate of cyanobact
Evidence for shifts in plant species diversity along N deposition gradients: a first synthesis for the United States
The impacts of nitrogen (N) deposition on plant diversity loss have been well documented across N deposition gradients in Europe, but much less so in the U.S. Published N fertilizer studies suggest losses will occur in the US, but many of these were done at levels of N input that were higher than modeled and measured N deposition, and higher than presumed N critical loads. The recent availability
Climate change and ecohydrology in temperate dryland ecosystems: a global assessment
Water cycling and availability exert dominant control over ecological processes and the sustainability of ecosystem services in water - limited ecosystems. Consequently, dryland ecosystems have the potential to be dramatically impacted by hydrologic alterations emerging from global change, notably increasing temperature and altered precipitation patterns. In addition, the possibility of directly m
Science and Products
- Science
Southwest Energy Exploration, Development, and Reclamation (SWEDR)
Approximately 35% of the US and approximately 82% of DOI lands are “drylands” found throughout the western US. These lands contain oil, gas, oil shale, shale oil, and tar sand deposits and the exploration for and extraction of these resources has resulted in hundreds of thousands of operating and abandoned wells across the West. These arid and semi-arid lands have unique soil and plant communities...Biological Soil Crust ("Biocrust") Science
Biological soil crusts (biocrusts) are commonly found on the soil surface in arid and semi-arid ecosystems (collectively called drylands). Biocrusts can consist of mosses, cyanobacteria, lichens, algae, and microfungi, and they strongly interact with the soil. These organisms or consortium of disparate organisms, depending on the specific biocrust, are important to the functioning of ecosystems...Drylands are highly vulnerable to climate and land use changes: what ecosystem changes are in store?
Improper land use during drought has been a major driver of land degradation in drylands globally, especially in the western U.S. Increasing aridity in western U.S. drylands under future climates will exacerbate risks associated with drought and land use decisions. This project provides critical observational, experimental, and modelling evidence to support our DOI partners with decision processes...Wind Erosion and Dust Emissions on the Colorado Plateau
Wind erosion of soils and dust emissions are a significant resource management challenge on the Colorado Plateau. Loss of topsoil and associated aeolian sediment (wind-driven sediment) movement can lead to reduced soil fertility as well as abrasion and burial of vegetation. Dust in the atmosphere poses a threat to human health, visual resources, and regional water supplies (due to interactions...Long-Term Vegetation Change on the Colorado Plateau
The Colorado Plateau, centered around the four corners area of the Southwest, and includes much of Arizona, Utah, Colorado, and New Mexico, is a large and important component of U.S. drylands. This important home to mountains, desert basins, dramatic canyons, arid woodlands, and grasslands is also one of North America’s most rapidly warming hot spots, with rates of warming of up to 2-3° C within...The Dry Valleys of Antarctica: Mapping the Effects of Human Trampling on Soils
Increasing numbers of people would like to visit the Dry Valleys of Antarctica. However, many nations have signed a treaty to protect the natural resources there as much as possible. Likely impacts include the aesthetic impact of long-lasting trails and increased wind erosion that deposits sediment on glaciers and sea ice. This project will identify areas able to withstand human trampling...Chronic Drought Impacts on Colorado Plateau ecosystems (Rain-Out Experiment)
In drylands, chronic reductions in water availability (press-drought) through reduced precipitation and increased temperatures may have profound ecosystem effects, depending on the sensitivities of the dominant plants and plant functional types. In this study, we are examining the impacts of moderate, but long-term chronic drought using a network of 40 drought shelters on the Colorado Plateau...Colorado Plateau Extreme Drought in Grassland Experiment (EDGE)
In drylands, short-term extreme droughts can have profound ecosystem effects, depending on the timing (seasonality) of drought and the sensitivities of the dominant plants and plant functional types. Past work suggests that cool season drought may disproportionately impact regionally important grass and shrub species. In this study, we are examining the impacts of extreme seasonal drought on...Completing the dryland puzzle: creating a predictive framework for biological soil crust function and response to climate change
Drylands are integral to the Earth system and the present and future of human society. Drylands encompass more than 40% of the terrestrial landmass and support 34% of the world’s human population. Biocrusts are the “living skin” of Earth’s drylands, sometimes dominating the ground cover and figuring prominently in ecosystem structure and function. Biocrusts are a biological aggregate of cyanobactEvidence for shifts in plant species diversity along N deposition gradients: a first synthesis for the United States
The impacts of nitrogen (N) deposition on plant diversity loss have been well documented across N deposition gradients in Europe, but much less so in the U.S. Published N fertilizer studies suggest losses will occur in the US, but many of these were done at levels of N input that were higher than modeled and measured N deposition, and higher than presumed N critical loads. The recent availabilityClimate change and ecohydrology in temperate dryland ecosystems: a global assessment
Water cycling and availability exert dominant control over ecological processes and the sustainability of ecosystem services in water - limited ecosystems. Consequently, dryland ecosystems have the potential to be dramatically impacted by hydrologic alterations emerging from global change, notably increasing temperature and altered precipitation patterns. In addition, the possibility of directly m - Data
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