Soil-plant-livestock-weather relationships of a range ecosystem: interactive timeshare regression and simulation model approaches

TitleSoil-plant-livestock-weather relationships of a range ecosystem: interactive timeshare regression and simulation model approaches
Publication TypeThesis
Year of Publication1973
AuthorsRussell JWilliam
Number of Pages94
Date Published1973
UniversityNew Mexico State University
CityLas Cruces, New Mexico
Thesis TypeM.S. Thesispp
Call Number00277
Keywordsdissertation, dissertations, grass productivity,model, grazing management,model, model,grass productivity, productivity,model, theses, thesis
AbstractData from Pasture Nine, Jornada Experimental Range, New Mexico, were used in regression and simulation modelling approaches to predicting perennial grass growth for use in management. These approaches served to illustrate the capabilities of timeshare computer facilities and APL (A Programming Language). Results of various regressions of the relationships of precipitation, days of soil moisture levels, and yield and cover of perennial grasses were used to heuristically develop a simulation model. Plotting the model output against the actual yields, although not statistically significant, gave promising results. The addition of parameters for evapo-transpiration could result in a valid model.