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Home / 2016 / April / 06 / UBC professor examines impact of reforestation on carbon and water
Research

UBC professor examines impact of reforestation on carbon and water

April 6, 2016

UBC Professor of Earth and Environmental Sciences Adam Wei.

UBC Professor of Earth and Environmental Sciences Adam Wei.

A four-year UBC study will look at current forest management practices to determine how harvesting, and natural disturbances—such as wildfires and pest infestations—are affecting the natural balance between carbon and water.

UBC researchers are teaming up with Kelowna-based engineering and environmental consulting firm ECORA and the BC Ministry of Forests, Lands and Natural Resource Operations (FLNRO) to work on the project.

“Water availability and management is one of the greatest challenges facing the world this century,” says principal investigator Adam Wei, who teaches in the Earth and Environmental Sciences department at UBC’s Okanagan campus. “Understanding how forest management affects forest carbon and water resources is important for protecting ecological functions and for mitigating climate change impacts.”

Forest ecosystems store about 86 per cent of the total global vegetation carbon budget. These carbon storage mechanisms have a substantial role in regulating the global carbon balance and directly impact other ecological systems, explains Wei. The four-year UBC project will study the carbon/water relationship in reforested areas in BC’s southern interior region, but the findings can be scalable to any forest environment.

Forests cover more than 40 per cent of the Canadian landscape. In Canada forests and closely-linked watershed ecosystems have undergone significant changes due not only to timber harvesting, but also to other disturbances like the mountain pine beetle infestation and forest fires, of which Canada experiences around 9,000 annually.

All of these disturbances mean a change in how forests manage carbon and water processes. Forests are normally carbon sinks, meaning they absorb carbon dioxide from the atmosphere, but disturbances in the natural ecosystem can switch forests to carbon sources. Many studies have examined how reforestation affects carbon, but the UBC study is unique in that in addition to looking at post-disturbance carbon recovery, it will explore other ecological processes like the effect on watershed hydrology and the coupling between carbon and water across different spatial scales.

“What we see in forest ecosystems is normally a carbon and water trade-off,” says Wei. “More trees means more growth and less water. Fewer trees means less growth and more water. In short, the more water that is present in a forest ecosystem, the less carbon we will find. If there is less water, there is more carbon. Our study will seek to understand the relationship between water and carbon to see if there is a good balance over time. We hope to strengthen our academic and industrial capacity to manage and protect forest carbon and water in Canadian landscapes.”

The research team will include Wei; Kelly Sherman, president of ECORA; Dr. Rita Winkler, senior forest hydrologist with FLNRO; three UBC Okanagan graduate students, and three undergraduate students. Wei will supervise students involved in the study while Sherman’s company will provide technical guidance on forest disturbance, reforestation, and forest carbon modelling processes. Winkler, who manages the Upper Penticton Watersheds, will ensure research sites and long-term data are available for the project.

“The research results will provide significant value to the natural resource management industry in Canada,” says Sherman. “Partnering with UBC on this project means that students have access to hands-on training and technical skills in forest ecology and watershed science, and together we can create a knowledge base and educational resources that benefit students, industry, and all Canadians who rely on effective management of forest resources and watersheds.”

Work on the study gets underway this April. The Natural Sciences and Engineering Research Council of Canada (NSERC) is providing $127,125 over four years through a Collaborative Research and Development Grant. Private-sector partner ECORA is committed to $80,000 over the term of the project.

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Media Contact

Patty Wellborn
Media Relations Strategist
University Relations

The University of British Columbia
Okanagan campus
Tel: 250 317 0293
E-mail: patty.wellborn@ubc.ca

Content type: Media Release
More content from: Earth, Environmental and Geographic Sciences, Irving K Barber School of Arts and Sciences (prior July 2020)

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UBC’s Okanagan campus is an innovative hub for research and learning founded in partnership with local Indigenous peoples, the Syilx Okanagan Nation, in whose traditional, ancestral and unceded territory the campus resides. The most established and influential global rankings all consistently place UBC in the top five per cent of universities in the world, and among the top three Canadian universities.

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