Also, particularly in the first few years after irrigation begins at sites not previously irrigated, additional N can be made available from mineralisation of soil organic matter. While effluent irrigation can increase uptake of N by trees, much of the N is returned to the forest floor in leaves and branches that decompose to again release it to the soil. This chapter provides an overview of the requirements for obtaining a licence to irrigate effluent onto plantations in Australia. It describes the different regulations and procedures in each State as well as environmental protection legislation, risk assessment requirements and appropriate contacts for further information. This chapter provides a listing of more than 220 readily accessible papers and reports dealing with issues related to the irrigation of tree plantations with effluent or saline water in Australia.
Key words following the references provide a guide to their subject matter.
Subject and author indexes are provided to help readers locate publications of interest. This chapter provides definitions for more than 300 technical terms and abbreviations encountered in the Guideline.