Untitled Page 1 Page 2 GEOMORPHOLOGY OF DESERT DUNES Sand dunes cover up to a
quarter of many desert regions. Determining the factors that determine their shape, size and …

Rangelands cover 70% of the world's land surface, and provide critical ecosystem services
of primary production, soil carbon storage, and nutrient cycling. These ecosystem services …

The flow dynamics within and immediately above an artificial plastic vegetation canopy are
measured in the field and wind tunnel. Artificial plants created from wooden dowels and …

Standing vegetation, for its disturbance to the near-surface airflow, is widely used in the arid
and some semi-arid lands over the world to control wind erosion. Knowledge of drag …

Aeolian processes are of particular importance in dryland ecosystems where ground cover
is inherently sparse because of limited precipitation. Dryland ecosystems include grassland …

Plants can reduce the effects of wind erosion on erodible surfaces by absorbing momentum
near sandy surfaces. We used models having the same cross-sectional shape as three …

Tropical ecosystems are undergoing unprecedented rates of degradation from deforestation,
fire, and drought disturbances. The collective effects of these disturbances threaten to shift …

Inducing biological soil crust (biocrust) development is an appealing approach for dust
mitigation in drylands due to the resistance biocrusts can provide against erosion. Using a …

Although the effectiveness of windbreaks in reducing wind speed and sediment transport is
highly dependent on the efficiency of individual elements, few field studies have evaluated …

The reduction of vegetation by wildfire can subject stable soil surfaces to increased aeolian
transport. Vegetation and associated microtopography function as surface roughness …