The regional council's report details the widespread conversions, called agricultural encroachment, on the margins of 24 of the region's braided rivers.

Photo: Wikimedia Commons A regional council report details the widespread conversions, called agricultural encroachment, between 1990 and 2012.

A report by the Canterbury Regional Council has detailed agricultural encroachment on nearly 12,000 hectares of land beside Canterbury's braided rivers, between 1990 and 2012.