This graph shows a decrease in the amount of water taken from a catchment in the Lammerlaw Range, eastern Otago, between 1980 and 2004. In 1982 the catchment was planted in radiata pine. A study compared it with an adjoining catchment of narrow-leaved snow tussock grassland. By 2004, 22 years after the pines were planted, the pine catchment was producing 37% less water than the tussock grassland catchment.
Te whakamahi i tēnei tūemi
This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.