Lakes of New Zealand
From Infogalactic: the planetary knowledge core
In New Zealand there are 3,820 lakes with a surface area larger than one hectare. The lakes are of varying types and origins. Many of the lakes in the central North Island area are volcanic crater lakes, while the majority of the lakes near the Southern Alps were carved by glaciers. Hydroelectric reservoirs are common in South Canterbury, Central Otago and along the Waikato River.[1]
Statistics
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- Largest lake: Lake Taupo – 616 km2 (238 sq mi)
- Deepest lake: Lake Hauroko – 462 m
There are:
- 41 lakes with a surface area larger than 10 km² (1000 ha)
- 229 lakes greater than 0.5 km² (50 ha)
- 3820 lakes greater than 0.01 km² (1 ha)
Pollution
A trophic level index is used as a measure of the pollution levels of lakes in New Zealand.
Based on the monitoring of 134 lakes it is estimated that one third of New Zealand lakes have high nutrient levels or have poor water quality.[2]
See also
- Rivers of New Zealand
- Water in New Zealand
- List of reservoirs and dams in New Zealand
- Environment of New Zealand
References
- ↑ Nathan, Simon.Types of lake (map), Te Ara – the Encyclopedia of New Zealand, updated 2007-11-05. Accessed 19 December 2007.
- ↑ New Zealand Ministry for the Environment – Trophic Level Index for lakes
Further reading
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