@article {51664, title = {Matric potential of clay loam soils on arid rangeland in southern New Mexico}, journal = {Journal of Range Management}, volume = {42}, number = {5}, year = {1989}, note = {Permission to post articles granted by the Society for Range Management; www.rangelands.org.}, month = {September 1, 198}, pages = {386-392}, abstract = {

The matric potential of soil water is presented for 6 clay loam sites on floodplains of arid rangelands. Gypsum resistance blocks impregnated with plaster of paris were placed at 6 soil depths to 122 cm. At 4 locations, blocks were placed inside and outside a buried sheet metal cylinder so that estimates could be obtained of matric potential due to precipitation and due to precipitation plus run-in. The average annual precipitation during the approximate 20-year study period was 242 mm, slightly above the long-time average. Haplargids dominated by tobosa [Hilaria mutica (Buckl.)Benth.] had a greater probability of the matric potential>=-1.5 MPa (wet soil) than the Calciorthids dominated by burrograss (Scleropogon brevifolius Phil.). The probability of matric potential>=-1.5 MPa (wet soil) was as great or greater in winter as during the summer growing season. The factors affecting matric potential were amount and nature of precipitation, amount of run-in water, soil and vegetation type, position on the landscape, and microrelief.

}, keywords = {precipitation, probabilities, soil matric potential, soil texture}, doi = {10.2307/3899545 }, url = {/files/bibliography/345.pdf}, author = {C.H. Herbel and Gibbens, Robert P.} }