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Water pollution in Canterbury in New Zealand has become a notable environmental issue due in a large part to the burgeoning dairy industry. Water resources are under the jurisdiction of the Canterbury Regional Council (Ecan) under the Resource Management Act (RMA), and water abstraction and use for irrigation requires a resource consent. There is opposition to new irrigation schemes since they are seen to exacerbate water pollution. The municipal water supply for Christchurch, sourced from the aquifers beneath the city, is untreated. This is unusual for a city of its size. ==Background== Due to the rain shadow effect of the Southern Alps the rainfall in Canterbury is lower than many other parts of the country at 500–700 mm per year. Water from melting snow and ice and from rainfall drain into the predominantly braided rivers on the Canterbury Plains. The rivers recharge the aquifers beneath the plains. The Canterbury Region was traditionally arable and livestock farming but there have been a large number of dairy conversions in the region. In recent years there has been a huge expansion in dairy farming throughout the South Island. Dairy farming requires the intensive use of water and it is placing a high demand on water resources in the Canterbury Region. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Water pollution in Canterbury, New Zealand」の詳細全文を読む スポンサード リンク
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