Tagged: Ecohydrology

Thirsty trees and water yields: Vegetation, water and a changing climate - Waiology

Waiology Oct 23, 2014

By Cate Macinnis-Ng Future climate projections predict that some parts of New Zealand will become drier with droughts being more severe and frequent. This is particularly true for the north and eastern parts of the country. We know that soil moisture availability will decline due to reductions in rainfall and increased evaporative demand will lead to faster transfer of … Read More

Plants in the water cycle - Waiology

Waiology Jun 30, 2011

By Daniel Collins When you think about hydrology, the first things that come to mind are often rain and rivers, not plants. But plants have a significant effect on how much rain actually reaches the rivers. We see this most readily in the reduction in river flow when grassland is replaced by shrubland or forest. Low flows, mean flow and … Read More

Land use hydrology paradox in Central Texas - Crikey Creek

Daniel Collins Apr 13, 2010

When it comes to conversion of grassland to shrubs or trees, the typical story goes like this. More rainfall is caught be the foliage and evaporated straight back into the air. Higher rates of transpiration deplete soil moisture faster, and deeper roots inhibit drainage of water from soil to aquifer. This story is typical because … Read More

Euro geoscience conference enters the blogosphere - Crikey Creek

Daniel Collins Apr 08, 2010

I’ll be heading to Vienna at the end of the month for the European Geoscience Union conference, to give a talk on large-scale ecohydrology. Wondering whether science bloggers have started talking about a meet-up, a google search found the official EGU 2010 conference blog. It’s just got off the ground, offering tips for pending attendees, but I … Read More

System to monitor grape vine water status wins water start-up prize - Crikey Creek

Daniel Collins Mar 09, 2010

Fruition Sciences, based in the US and France, has won the top prize in Imagine H2O‘s competition “to help innovators and entrepreneurs turn great ideas into real-world solutions that ensure available clean water and sanitation.” Fruition showed particular business potential by making significant water savings for nine California grape growers. “Fruition co-founder Sebastien Payen said he saw … Read More

Trickle down carbon sequestration - Crikey Creek

Daniel Collins Nov 20, 2009

Nick Smith has suggested to farmers that they start offsetting their greenhouse gas emissions by planting trees. A risk with this is that planting trees may compromise water supply. Compared with pasture, trees tend to reduce the amount of rainfall that reaches rivers and aquifers. A larger canopy traps more rain as it falls, so it evaporates directly from … Read More

Kenya to evict forest dwellers to increase water supply - Crikey Creek

Daniel Collins Nov 16, 2009

The NYT has a tragic story about a hunter-gatherer group in Kenya that may lose its ancestral forest home. The Kenyan government is gearing up to evict tens of thousands of settlers, illegal or not, from the Mau Forest, the Ogiek’s ancestral home and a critical water source for this entire country. The question is: Will the few thousand … Read More