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Archive: Waiology June 2014

What makes wetlands wet lands?

Waiology • Feb 04, 2013

By Daniel Collins The simple answer is, of course, water. But that says little about the natural history of wetlands, or what physical conditions are necessary to maintain, restore or even engineer them. For that, we need to take a closer look at wetland hydrology. Wetlands are tracts of land that are water-logged at least seasonally. They may be spongy … Read More

Happy World Wetlands Day!

Waiology • Feb 02, 2013

By Daniel Collins Halfway through Waiology’s series for World Wetlands Day we’ve already learned a lot about New Zealand wetlands and efforts to study and restore them. But today being the day, how about you actually visit one? I’ll be at Christchurch’s Travis Wetland. And then come back for more articles in the coming week. In the meantime, here … Read More

Why measure carbon budgets in NZ peat wetlands?

Waiology • Jan 31, 2013

By Dave Campbell In 1769 Captain James Cook’s Endeavour anchored at the mouth of the Waihou River near the present-day town of Thames. Cook’s naturalist, Joseph Banks, was impressed by the evident resources within the vast swamp forest that covered the lower Hauraki Plains: …The Noble timber, of which there is such an abundance, would furnish plenty of materials either … Read More

World Wetlands Day at Lake Serpentine, site for proposed National Wetlands Centre

Waiology • Jan 30, 2013

By Shonagh Lindsay The Rotopiko/Serpentine complex, a headwater of the Waikato River at Ohaupo south of Hamilton, is steadily being developed by the National Wetland Trust as the site of New Zealand’s National Wetland Centre, a showcase for wetland education, training and research. To celebrate World Wetlands Day, the Trust will launch work on the National Wetland Centre … Read More

The state of Canterbury’s coastal wetland vegetation

Waiology • Jan 29, 2013

By Philip Grove Canterbury has a wide variety of wetland types in a range of landscapes from the mountains and high country through to the foothills, plains and the coast. The biological productivity of coastal wetlands and their ecological importance in the life cycles of many native fish and birds is well recognised. A national database of inland freshwater wetlands … Read More

From “swamps” to “wetlands”: The transformation of wetlands as both conceptual and physical landscapes

Waiology • Jan 28, 2013

By Catherine Knight The boardwalk through the wetland at Papaitonga, south of Levin, Horowhenua (photo: C. Knight). Through time, not only has our environment been transformed, but also the way we perceive it and the words we use to describe it. No example illustrates this better than the “swamp” to “wetland” transformation. When European settlement of New Zealand began … Read More

The use of dicyandiamide (DCD) to control nitrogen pollution in NZ

Waiology • Jan 25, 2013

By Bob Wilcock For the last 20 years New Zealand has been undergoing a rapid expansion in dairy farming, driven by commodity prices. New Zealand’s dairy exports, although small on a global scale of production, comprise 30-40% of internationally traded dairy products and are a major component of our gross domestic product (roughly 3%). Dairy farming is an intensive form … Read More

2012 in review

Waiology • Dec 21, 2012

By Daniel Collins Another year has come and gone, and with it more science of New Zealand water’s shared near and far. As I look back, with this handy Wordle below, it’s no surprise that “water” got mentioned a lot. Other common words in this year’s posts include “groundwater”, “Canterbury”, “flow”, “rainfall”, “recharge” and “snow”. All very important topics. Read More