Development of Pinus radiata in South Australia from age 10 to 35 y. Black line illustrates the development of stand thinned on 5 occasions (solid black symbols Υ) from 1800 to 167 stems· ha− 1. Grey lines illustrate three similar stands thinned from 1800 to 230 (middle line) and 140 stems· ha− 1 (outermost lines), and points filled grey indicate stocking < 180 stems· ha− 1. Data courtesy of Dr JW Leech, Woods and Forests Department, South Australia.