How are ideas about change conveyed in "The Forest Hit By Modern Use"?

In "The Forest Hit By Modern Use", Les Murray conveys ideas about change in many ways. It conveys the ideas that changes made by man can be unnatural and that changes can have destructive effects on the environment. In the poem, the destruction from deforestation is described. It is clear to see that Les Murray is strongly against deforestation and believes that our forests are being exploited.
Throughout the whole poem, there is imagery dealing with the unnaturalness of the changes caused by man. In the second stanza, "Dense growth that were always underbrush expand in the light" shows th…