SGS Pasture Model

Summary

This documents accompanies the second milestone report for project HRZ.120 and the release of the SGS Pasture Model version 3.1.8. (During installation, use the serial number: SGS3.55555.1953.UMLA)

Note that:

• The program version number, 3.1.8, relates to my own programming strategy – it has no meaning in the context of this project!

• Model documentation is given in the “Help” file.

• The default simulation which can be run just by firing up the model and clicking the “Run” button uses generic climatic patterns. This simulation is not meant to be particularly realistic. During the next milestone I’ll be generating simulations from the SGS NE project.

• This program is quite demanding on the computer system. As the program runs it stores a lot of information to allow all the graphs to be drawn and also for the subsequent detailed export of information. The system requirements are mentioned on the web page.

The Schedule in the contract have been completed, with one exception in that specific treatment of leaf and stem components of dry weight has not been incorporated. There are good reasons for this, which are discussed below.

In this document some issues in relation to the work that has been done are considered, simulation output for a simulation based on Greg Lodge’s SGS site is discussed, and some comments are given on future possible work with the Model.