Dr Gabriel Hemery (born 13 December 1968) is an English forest scientist (silvologist) and author. He co-founded the Sylva Foundation with Sir Martin Wood, a tree and forestry charity established in 2009.
Career.
He began his career at the Northmoor Trust, now named the Earth Trust, in Oxfordshire. He later became Director of Development for the Botanical Society of Britain and Ireland, returning to forestry to establish the Forestry Horizons think-tank in 2006. He is currently Chief Executive of Sylva Foundation, which he co-founded with Sir Martin Wood in 2009.
He has played an active role in the Institute of Chartered Foresters where he is a Fellow.
During 2011, he co-founded the ginger group "Our Forests" with other prominent environmentalists, including Jonathon Porritt and Tony Juniper, to provide a voice for the people of England in the future of the country's public forests.
In 2022, he was elected Chair of the Forestry and Climate Change Partnership
 which exists to help Britain's trees, woods, and forests to be resilient and adapt to a changing climate.
With co-author Sarah Simblet he wrote a contemporary version of John Evelyn's Sylva – "The New Sylva" – published by Bloomsbury in April 2014.
He has written several fiction works including with Unbound Publishing ( ) "Green Gold: The Epic True Story of Victorian Plant Hunter John Jeffrey"; a biographical novel describing the true story of an expedition to North America by Victorian botanist John Jeffrey between 1850 and 1854. He has also written two short story collections and a poetry anthology.
He is currently working on a series of guidebooks to British forests published by Bloomsbury, the first of which was "The Forest Guide: Scotland" published April 2023.
In late 2023, his latest book "The Tree Almanac 2024" will be published by 
(Robinson Books, part of Little, Brown Book Group, with the Foreword written by Tracy Chevalier.
Forestry research.
He designed and established a new woodland and centre for hardwood forestry research; Paradise Wood.
He was a founding member of the British and Irish Hardwoods Improvement Programme establishing a number of forestry field trials across the UK and Ireland (e.g.). 
He gained a DPhil degree at the Department of Plant Sciences at the University of Oxford on the genetic improvement of walnut. His research took him to the walnut fruit forests of Kyrgyzstan where he collected thousands of Juglans regia seeds for field trials back in the UK. He then researched and published numerous articles pertaining to the silviculture (e.g.) and genetic improvement of walnut.
He initiated an agroforestry research project in the mid-1990s, combining free-range broiler chicken with newly established woodland.
References.
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