What people are saying - Write a review
We haven't found any reviews in the usual places.
What Must Be Done?
Soil and Soil Formation in Arid Regions
47 other sections not shown
Other editions - View all
Environmental Effects of Off-Road Vehicles: Impacts and Management in Arid ...
R. H. Webb,H. G. Wilshire
No preview available - 2011
Algodones Dunes Ambrosia dumosa animals annual arid areas biomass Bureau of Land California Desert Canyon Chapter cover creosote bush crusts cycleway damage density depth desert pavement desert soils desert varnish disturbed dune buggy dune buggy sounds ecosystems effects environment environmental erosion rates Figure germination gully habitats Hymenoclea salsola impact increase infiltration intensity kg ha-1 Land Management Larrea tridentata lizard measured ment Mojave Desert monitored motorcycle Motorcycle Industry Council natural occur off-road vehicles ORV activity ORV areas ORV facilities ORV users perennial perennial plants plant protection public lands rainfall recovery recreational Report result revegetation road rock runoff sacrifice areas sand dunes scrub sediment seed seedlings shrubs slopes soil compaction species SPLs surface tion trails transects transmission line types U.S. Bureau U.S. Department U.S. Forest Service U.S. Geological Survey U.S. government undisturbed Valley Vasek vegetation wildlife Wilshire wind erosion