Cool insights for a hot world: trees and forests recycle water

Anyone who has walked outside on a sunny day knows that forests and trees matter for temperature, humidity and wind speed. Planting trees speaks to concerns about climate change, but the directly important aspects of the tree-climate relationships have so far been overlooked in climate policy where it relates to forest.

That, at least, is the conclusion of a new review. The authors suggest that the global conversation on trees, forests and climate needs to be turned on its head: the direct effects via rainfall and cooling may be more important than the well-studied effects through the global carbon balance.

Yet, current climate policy only recognizes the latter. While farmers understand that trees cool their homes, livestock and crops, they had to learn the complex and abstract language of greenhouse gasses and carbon stocks if they wanted to be part of climate mitigation efforts. Not anymore, if the new perspectives become widely accepted.Read more

Research cuts a potential new path to faster, cheaper tropical forest restoration: Thinning

A perfusion of pioneers in a regenerating part of the Harapan Rainforest in Sumatra, Indonesia. Photo By Rhett Harrison/ICRAF
A perfusion of pioneers in a regenerating part of the Harapan Rainforest in Sumatra, Indonesia. Photo By Rhett Harrison/ICRAF

A common way to restore a degraded forest is to plant seedlings and nurture these into full trees. Indeed, to most people restoration and tree-planting (with native species) are virtually synonymous. Planting and nurturing tree seedlings over a wide area, however, can be an expensive and labour-intensive affair. Not to mention the decades or even centuries it takes before seedlings grow into trees.

Another common path to restoration is to simply protect a degraded forest from further degradation, often by fencing it off. Over time, lost tree cover will return through natural regeneration. This option is a relatively inexpensive, but it can also take centuries to achieve full restoration and the environmental benefits it brings.

Read more. . .

Fig trees throw down a lifeline to a healthier planet

Fig trees were here when dinosaurs first roamed the planet. And today, just as they did 80 million years ago, Ficus species continue to bring nourishment, shade, water and numerous other gifts to people and plants. What’s more, these trees may help us claw our way out of the ecological conundrums we currently find ourselves in—deforestation, species loss, and even climate change.

In a gripping 224 pages of eloquent writing, Mike Shanahan’s first book, ‘Ladders to Heaven: How fig trees shaped our history, fed our imaginations and can enrich our future’, brings us the fascinating story of fig trees. From the age of dinosaurs, to pre-history and the age of exploration, and into the present times, the reader learns how these trees shaped the planet and fascinated philosophers, conquerors and commoners alike. Read more. . .

The right tree for the right place: vegetationmap4africa v2 includes smartphone app

Tree enthusiasts on the move can now identify species as they go, and at the same time gain a deeper understanding of their natural environment, thanks to a new version of vegetationmap4africa (www.vegetationmap4africa.org).

Field testing of the new vegetationmap4Africa App. Photo by Roeland Kindt/ICRAF
Field testing of the new vegetationmap4Africa App. Photo by Roeland Kindt/ICRAF

The new version of the map (ver. 2.0), which has been developed by the World Agroforestry Centre (ICRAF), the University of Copenhagen and partners, was launched on 7 September 2015 at the XIV World Forestry Congress in Durban. The map is expected to help those involved in landscape restoration to make better decisions on suitable tree and shrub species to.. Read more…

Forests and society a major theme at the XIV World Forestry Congress

Forest give food and oxygen, stabilize land, improve water quality and availability, reduce the effects of climate change, and provide spaces for cultural activities, reflection and enjoyment.

Convened by the United Nations Food and Agriculture Organization (FAO) and hosted in Durban by the Government of South Africa, the XIV World Forestry Congress (#Forests2015 on twitter) 7-11 September 2015, will have a strong focus on young people, women and local communities in defining a vision for a sustainable future of forests and forestry. Read more. . .