Rangeland sustainability modeling using soil exposure and soil moisture parameters
Introduction In semi-arid rangelands such as the sagebrush-steppe of southeastern Idaho,USA,the limiting factor for range productivity is moisture,specifically soil moisture ( Thomas and Squires 1991).Furthermore,the degree of soil exposure is a driving indicator of rangeland health (OBrien et al.2003).Modeling rangeland sustainability then requires the use of reliable soil moisture and soil exposure component models as the foundation for all subsequent work.The goal of this study was to develop and assess these soil moisture and soil exposure component models using field observations and measurements coupled with satellite remote sensing classification and geostatistical interpolation techniques.
bare soil soil moisture remote sensing geostatistics
J.Tibbitts K.T.Weber J.Theau T.T.Sankey
GIS Training and Research Center,Idaho State University,Pocatello,Idaho,83209-8104,USA
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）