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Three trillion trees on earth – study

John Kerr posted in on September 3rd, 2015.

There are more than 3 trillion trees on Earth today, but since the start of human civilization the total number of trees has on earth has almost halved, according to new research by an international team of scientists including New Zealanders. The study, published today in Nature, churned through more than 400,000 measured tree density […]

Greening the red zone in Christchurch

John Kerr posted in on July 19th, 2012.

Christchurch researchers have retrospectively analysed the Canterbury quakes from the perspective of urban forest management, highlighting the important role trees and greenspaces played during the earthquakes. In the research article, published this week in the journal Urban Forestry & Urban Greening, researchers point out how rows trees acted as sheltering barricades against falling debris and […]

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Trees grow faster in hot inner-cities

John Kerr posted in on May 7th, 2012.

A study by Kiwi and US researchers, published in Tree Physiology, shows that warmer urban nights can increase tree growth. Native red oak seedlings, planted in Central Park, New York, put on eight times more biomass in one summer, than those planted in close-by suburban and rural areas. The hypothesis that increased growth was due to […]

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