A5064810267- Aeolian processes and effects
- Soil erosion and sediment transport
- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Geology and Paleoclimatology Research
- Rangeland and Wildlife Management
- Atmospheric and Environmental Gas Dynamics
- Tree Root and Stability Studies
- Fire effects on ecosystems
- Rangeland Management and Livestock Ecology
- Pasture and Agricultural Systems
- Hydrology and Sediment Transport Processes
- Climate change impacts on agriculture
- Peatlands and Wetlands Ecology
- Remote Sensing and LiDAR Applications
- Ecology and Vegetation Dynamics Studies
- Plant Water Relations and Carbon Dynamics
- Biocrusts and Microbial Ecology
- Soil Geostatistics and Mapping
- Soil Carbon and Nitrogen Dynamics
- Plant responses to elevated CO2
- Species Distribution and Climate Change
- Plant Ecology and Soil Science
- Exercise and Physiological Responses
- Sports Performance and Training
Agricultural Research Service
2016-2025
New Mexico State University
2016-2024
Research Network (United States)
2022
United States Department of Agriculture
2022
Yellow River Institute of Hydraulic Research
2021
Henan University
2021
Cold Regions Research and Engineering Laboratory
2021
U.S. Army Engineer Research and Development Center
2021
United States Army
2021
United States Army Corps of Engineers
2021
Transitions from semiarid grassland to shrubland states are among the most widely recognized examples of regime shifts in terrestrial ecosystems. Nonetheless, processes causing grassland–shrubland transitions and their consequences incompletely understood. We challenge several misconceptions about these desert grasslands, including that (a) they currently controlled by local livestock grazing drought events, (b) represent severe land degradation, (c) restoration is impossible....
Abstract Anthropogenic land use and cover change, including local environmental disturbances, moderate rates of wind‐driven soil erosion dust emission. These human‐dust cycle interactions impact ecosystems agricultural production, air quality, human health, biogeochemical cycles, climate. While the impacts activities management on aeolian processes can be profound, are often complex assessments anthropogenic loads at all scales remain highly uncertain. Here, we critically review drivers...
Wind erosion and blowing dust threaten food security, human health ecosystem services across global drylands. Monitoring wind is needed to inform management, with explicit monitoring objectives being critical for interpreting translating information into management actions. should establish quantitative guidelines determining the relationship of indicators benchmarks that reflect tolerable production levels considering impacts to, example, processes, species, agricultural systems well-being....
Establishing mineral dust impacts on Earth's systems requires numerical models of the cycle. Differences between optical depth (DOD) measurements and modelling cycle emission, atmospheric transport, deposition indicate large model uncertainty due partially to unrealistic assumptions about emission frequency. Calibrating DOD typically in North Africa, are routinely used reduce magnitude. This calibration forces modelled emissions match but may hide correct magnitude frequency events at...
Abstract Soil carbon stores amount to 54% of the terrestrial pool and twice atmospheric pool, but soil organic ( SOC ) can be transient. There is an ongoing debate about whether soils are a net source or sink carbon, understanding role aeolian processes in erosion, transport deposition rudimentary. The impacts erosion by wind on global budget, its importance for accounting remain largely unknown. Current losses based assumption that content eroded material same as parent soils. However,...
Abstract The Great Basin of the western United States is experiencing dramatic increases in wildfire and Bromus species invasion that potentially accelerate wind erosion plant community change. We used a model parameterized for rangelands standard ecological monitoring data sets collected at 10,779 locations from 2011 to 2019 characterize potential Basin, assess relationships between factors affecting erosion, quantify effects invasive on aeolian horizontal sediment flux, Q . There were 403...
Soil erosion can have a multitude of negative impacts on agroecosystems and society there remains an urgent need for tools to support its management. Quantitative benchmarks based holistic understanding processes, ecosystem function, land use objectives be used with monitoring data models inform assessments make objective actionable decisions about However, managers currently lack framework establishing benchmarks. Here, we present evaluation different approaches quantitative soil ecological...
Abstract Soil erosion redistributes soil organic carbon ( SOC ) within terrestrial ecosystems, to the atmosphere and oceans. Dust export is an essential component of (C) dioxide CO 2 budget because wind contributes C cycle by removing selectively from vast areas transporting dust quickly offshore; augmenting net loss systems. However, contribution rates release sequestration poorly understood. Here, we describe how emission omitted national accounting, underestimated source may accelerate...
Accelerated soil erosion occurs when anthropogenic processes modify soil, vegetation, or climatic conditions causing rates at a location to exceed their natural variability. Identifying where and accelerated is critical first step toward its effective management. Here we explored how assessments structured in the context of ecological sites (a land classification based on soils, landscape setting, potential) vegetation states (plant assemblages that may change due management) can inform...
Abstract Representation of surface roughness effects on aeolian sediment transport is a key source uncertainty in wind erosion models. Drag partitioning schemes are used to account for by scaling the soil entrainment threshold ratio shear stress elements that vegetated land surface. This approach does not explicitly configuration, which may be important flux. Here we investigate significance configuration transport, ability drag approaches represent effects, and implications model accuracy....
Drylands are characterised by patchy vegetation, erodible surfaces and erosive aeolian processes. Empirical modelling studies have shown that vegetation elements provide drag on the overlying airflow, thus affecting wind velocity profiles altering dynamics desert surfaces. However, these significantly complicated a variety of factors, including turbulence, porosity pliability effects. This has resulted in some uncertainty about effect sediment transport drylands. Here, we review recent...
Indicators of vegetation cover and structure are widely available for monitoring managing rangeland wind erosion. Identifying which indicators most appropriate managers could improve erosion mitigation restoration efforts. Vegetation directly protects the soil surface from erosive winds reduces erosivity by extracting momentum air. The portion that is protected adequately described fractional ground indicators. However, aerodynamic sheltering effects vegetation, more important than water...
Two decades of drought in the southwestern USA are spurring concerns about increases wind erosion, dust emissions, and associated impacts on ecosystems, agriculture, human health, water supply. Different avenues investigation into primary drivers erosion have yielded mixed results depending spatial temporal sensitivity evidence. We monitored passive aeolian sediment traps from 2017 to 2020 across eighty-one sites near Moab, Utah understand patterns flux. At measurement sites, we collated...
Abstract Understanding the effects of windbreaks on aeolian sediment transport rates, and size distribution sediments transported through them, is important for designing to optimize their wind erosion mitigation benefits. This field study determines upwind ( x = −100 m), within 100 256 m) downwind 448 560 (where distance from first row windbreak) a multi‐row Tamarix windbreak as basis further investigation influence vegetation characteristics. The volumetric percentage grains around peaks...