The study, by David Ellison, Martyn Futter and Kevin Bishop at the Swedish University of Agricultural Sciences (SLU), shows that reducing forest area reduces regional and continental rainfall. This needs to be recognized to obtain a fair picture of the forest role in the hydrologic cycle.
“Are forests good for water? An apparently simple question divides scientists in two camps – those who see trees as demanding water and those who see trees as supplying water,” said David Ellison who works in the Future Forests research program studying resource management. “This paper demonstrates that the difference between these two camps has to do with the spatial scale being considered.”
From a local perspective, a tree is a consumer of water. But on a broader regional scale, forests supply the atmosphere with moisture that will become rainfall. Some dry areas depend almost entirely on rain that comes from forest-covered areas via the atmosphere.
The view of forests as a consumer of water influences the EU Water Framework Directive (WFD) which includes strategies for water pricing, but fails to consider the contribution of forests to the water cycle. The same goes for the increasingly popular “Water Footprint”, a tool developed to communicate the water usage of a product or process.
Deforestation and land conversion from forest to agriculture or urbanization will have a negative effect on regional precipitation. On a small scale and in the short run it may not be noticeable. But if the loss of forests continues, there is a risk that both rainfall and water supply will decrease in many places.
Afforestation and reforestation on the other hand could be used as an invaluable climate change adaptation tool to bring increasing moisture to regions where rainfall is on the decline.
David Ellison argues for the need to change the basic view about the importance of forests in the hydrologic cycle in a new article in the influential journal Global Change Biology.
“Forests, whose contribution to the water cycle is crucial for human survival and future well being, should be regarded as a global public good, to be preserved and used for the benefit of all.”
This paper is published in Global Change Biology. To receive a copy, please contact Annika Mossing at Future Forests, SLU, +46 90 7868221, +46 727 103944
Contact the Authors: David Ellison, email@example.com, cell phone 0036-30-929-5246
The Future Forests research programme produces research on which to base strategies for the sustainable use of boreal forests. Future Forests is a Mistra programme, hosted by Swedish University of Agricultural Sciences (SLU). It is a joint initiative between SLU, Umeå University and the Forestry Reserach Institute of Sweden.
Annika Mossing | idw
Forest Management Yields Higher Productivity through Biodiversity
14.10.2016 | Technische Universität München
Farming with forests
23.09.2016 | University of Illinois College of Agricultural, Consumer and Environmental Sciences (ACES)
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
24.10.2016 | Power and Electrical Engineering
24.10.2016 | Life Sciences
24.10.2016 | Life Sciences