Establishment of grasses on roadside debris slopes

Ice-driven creep on Martian debris slopes

[1] Accumulations of rocky debris at the base of bedrock escarpments on Mars have mean inclinations of 20 , well below the angle of repose ( 35 ). These inclinations decrease with increasing latitude, suggesting a climatic influence. We present evidence that these low inclinations are the result of gravitational creep driven by repeated deposition and sublimation of ground ice. We estimate the ...

Investigating Predictors of Plant Establishment During Roadside Restoration

Ecological restoration on roadsides confers several ecological benefits, but also poses significant challenges. Native plants used in restoration efforts must survive compacted soil, harsh microclimates, prolific invasive species, and pollution from road salts and vehicle emissions. Criteria for both site and species selection need to be developed to assist practitioners in restoring roadside e...

Identifying and Addressing Soil Property Issues Affecting Roadside Vegetation Establishment

Relationship between Heavy Metal Concentrations in Soils and Grasses of Roadside Farmland in Nepal

Transportation activities can contribute to accumulation of heavy metals in roadside soil and grass, which could potentially compromise public health and the environment if the roadways cross farmland areas. Particularly, heavy metals may enter the food chain as a result of their uptake by roadside edible grasses. This research was conducted to investigate heavy metal (Cu, Zn, Cd, and Pb) conce...

Release of Roadside Native Perennial Grasses following Removal of Yellow Starthistle

The ecological benefits of a roadside native perennial grass stand are :ompromised when invasive species become estab· lished. We evaluated the potential to regenerate existing native perennial grass stand5 populat~d with yellow starthistle (Centaurea solstitialis) on a roadside planting in the lowland hills of t1e interior Coast Range of northern California. The experiment was designed to dete...