The research was conducted on the rangeland portion of the Texas Tech University Campus and on the Muleshoe National Wildlife Refuge, during the summers of 1992, 1993, and 1994.
Two objectives were stated for this study: (1) to estimate spatial differences of infiltration rates, sediment concentration in runoff, and interrill erosion under grass and shrub cover in the Southern High Plains, and (2) to find soil and plant characteristics that influence infiltration, sediment concentration in runoff, and interrill erosion. Type and amount of vegetation are important factors in maintaining high infiltration rates and lower interrill erosion on rangeland watersheds. Different water and soil losses can occur at zones under plants, bare ground areas, and transition zones between plants and bare ground. The mesquite coppice dunes form stabilized spots where wildlife abounds. Arid and semiarid environments in the southwestern United States and northern Mexico have significant spatial and temporal variations in hydrologic and erosion processes. Coppice dunes have been reported in many parts of the world (e.g., Dougill and Thomas, 2006 Kidron and Zohar, 2016 Langford, 2000 Tengberg, 1995 Wang et al., 2006). The white gypsum sands of the Salt Basin Dunes rise 100 feet from the desert.
Also, water that does not infiltrate and becomes surface runoff is the primary force for erosion on those watersheds. On most rangeland watersheds, water is the limiting factor to plant production. Nebkha or Coppice Dunes Nebkha dunes (also known as coppice dunes) are simple dunes that form around vegetation, primarily on the sand sheet.
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