Strand, M. A. 1973. Models relating to terrestrial mineral cycling--progress report. Seattle: University of Washington; Coniferous For. Biome Internal Rep. 111. 10 p.
Although no formal project in mineral cycling was defined for 1972,three modeling efforts were begun: calcium cycling at Cedar River, litterdecomposition, and miombo ecosystem. The calcium cycling model is a simplecompartment model and was developed as a practice exercise. It demonstratesthe inadequacy of linear-donor control formulation for describing the transferof a non--limiting nutrient. The litter decomposition model is used toexamine the processes related to the incorporation of organic material intothe soil horizons. It is a nonlinear model using difference equations ona one week time resolution. It has not yet been coupled to mineral release.The miombo ecosystem model follows the flux of carbon through a centralAfrican ecosystem. It demonstrates the seasonal changes in biomass invarious vegetation and animal components.