By Chris Schnepf
Blister rust has to have very high humidity to successfully infect white pine needles. Photo: John Schwandt.
When it comes to climate change, many people focus on raw physics: how much more precipitation or less, the number of frost free days, how many days a year above or below certain temperatures, the length of the fire season, etc. These dimensions are all important to reflect on and study, but it may be that some of the most significant climate change effects could be things we can’t even imagine – what some people might refer to as “global weirding.” Continue reading
Matthew C. Reeves, U.S. Forest Service, Rocky Mountain Research Station
Forage variability is expected to increase even further in the future, enhancing the need for flexibility in managing grazing on rangelands in the Pacific Northwest. Photo: Darrell Kilgore.
The amount of annual net primary production on rangelands forms the forage base upon which livelihoods and billions of dollars of commerce depend. Land managers and livestock producers in the Pacific Northwest deal with high year-to-year variations in net primary production, which often varies 40% between years due to changes in the amount of precipitation from one year to the next. And in the future, it is widely expected that climate change will lead to further increases in year-to-year variability, creating both challenges and opportunities for ranchers in the region. We therefore need to understand the longer-term changes in how net primary production and resulting forage production will vary, so we can explore new options that provide increased flexibility to ranchers and managers. Continue reading
By Paris Edwards, USDA Northwest Climate Hub and Amy Garrett, Oregon State University Extension
Dry farming trial at the Oregon State University Oak Creek Center for Urban Horticulture. Photo: Amy Garrett, taken on July 27th, 2020.
In parts of the maritime Pacific Northwest, climate conditions work well for dry farming, a set of soil preparation and management techniques that allow for growing food with little to no supplemental water. Dry farming has a long history of practice in the West, but a recent resurgence in popularity can be linked to water access challenges, drought, and uncertain future climate conditions. Dry farming fruits and vegetables requires a set of techniques that are evolving as the global network and local community of experts continues to expand and innovate together. So how is the reemergence of dry farming in the Northwest unfolding, and what does it have to offer growers and consumers? Continue reading
Emily Jane Davis, Assistant Professor and Extension Specialist, Oregon State University Extension, & Sonia A. Hall, Center for Sustaining Agriculture and Natural Resources, Washington State University
Annual invasive grasses like cheatgrass, here appearing with a typical reddish tint, increase fuel loads and favor bigger fires, especially as the climate changes. Photo: Darrell Kilgore.
Wildfires in rangeland systems across the western United States, including the intermountain Northwest, are not going away. If anything, research and climate change modeling suggest that wildfire activity will continue to increase (Abatzoglou and Kolden 2011), and conditions support expansion of the annual invasive grasses, like cheatgrass, that increase fuel loads and favor bigger fires (Bradley et al. 2016). Yet wildfires are already an issue in these rangelands systems, for ranchers, natural resource managers, and conservationists worried about species like Greater sage grouse. So, tools that are helping make a difference now can become the path forward for addressing these issues in the future as well.
Wildfire impacts cross ownership boundaries, and ranchers are often closest to fires when they start. In the sagebrush steppe landscapes of eastern Oregon and Idaho, growing numbers of ranchers participate in Rangeland Fire Protection Associations (RFPAs) to help minimize these impacts. Continue reading
By James Ekins, Ph.D., University of Idaho Extension
IDAH2O citizen scientists learning how to collect good stream data. Participants return home with a more sophisticated understanding of stream processes and are better prepared to explain stream health to neighbors and elected representatives, contributing to community learning. Photo: James Ekins.
Understanding and managing natural resources and agricultural processes are complex tasks, especially in a rapidly changing world. Community resilience has been described as the “existence, development, and engagement of community resources by community members to thrive in an environment characterized by change, uncertainty, unpredictability and surprise (Magis 2010).” One important ingredient for achieving community resilience is community learning, the idea that groups of people build and share norms, values, beliefs, and understandings of the world around them. Overall, the better a community communicates, the greater its ability to develop values and norms that lead to adaptive capacity (the ability of people to engage in activities that influence resilience). Different ways of knowing enable different capacities; communities assemble knowledge from multiple sources, along with local (place-based) cultural adaptations, to adapt to change.
As an Extension educator, I wonder how social learning increases a community’s capacity to react and adapt to socio-ecological change. Are we as non-formal educators making a difference? Are our communities more resilient with long term educational processes like multistakeholder collaborative groups, field tours, and public education workshops? How do they result in a community that is better connected, with a broader base of knowledge and common understanding to draw from? Continue reading
By Fidel Maureira, Department of Biological Systems Engineering, Washington State University
Cartoon adapted from https://pixabay.com (free for commercial use; no attribution required).
A few months ago I wrote an article that gave a preview of the work we were conducting, to explore whether Washington State could become the new California in vegetable production as the climate warms. Results from this work are now in, and the answer is… yes, the potential is definitely there. Continue reading
Q&A with Weed Scientist Dr. Ian C. Burke
Ian Burke (top) and Doug Finkelnburg (bottom).
By Doug Finkelnburg, Area Extension Educator, Cropping Systems, University of Idaho Extension
In the book “Advances in Dryland Farming in the Inland Pacific Northwest”, the common weed downy brome or “cheatgrass” is identified as potentially problematic for wheat producers as the climate changes. Downy brome is projected to head earlier in the season and expand its present occupied acreage. Such changes are happening concurrently to broader herbicide resistances being found in Pacific Northwest downy brome populations, a combination that puts increased pressure on weed managers. Curious how these issues interacted, I asked Dr. Ian Burke, Washington State University Weed Scientist and lead author of the Advances chapter “Integrated weed management” about how climate change and herbicide resistance will affect downy brome management. Continue reading
By Sonia A. Hall
Our most recently published case study on resilience to climate change describes Brenda and Tony Richards’ family cow-calf operation in Murphy, Idaho.
Over the last few years at the Center for Sustaining Agriculture and Natural Resources we have developed a range of case studies highlighting individual farmers and ranchers in the Pacific Northwest that are implementing practices or strategies that provide ecological and economic benefits now in addition to increasing resilience to climate change. We’ve discussed some of these case studies in previous AgClimate articles (see those on the use of stripper headers and precision nitrogen). Our most recent series is the Rancher-to-Rancher series, which explores innovative approaches three Pacific Northwest ranchers are using that increase their resilience in the face of a changing climate. Though each case study is specific to the conditions of the particular rancher being profiled, insights and strategies from each case study may be applicable elsewhere.
Check out the most recently published case study, that describes Brenda and Tony Richards’ family cow-calf operation in Murphy, Idaho. Continue reading
Re-posted from Water Current News, WSU Extension
The Entiat Experimental Forest 40 years after a wildfire. Photo Marketa McGuire.
In 1970, when a large lightening caused wildfire started in the Entiat Experimental Forest in north-central Washington, researchers had already collected 12 years of baseline data on three watersheds. Weather and streamflow (including quantity, quality, and timing of water discharge) had all been recorded. This provided a unique opportunity to study the long-term effects of post-fire recovery efforts on hydrology.
Decades after the fire occurred, Ryan Niemeyer, an adjunct professor in Washington State University’s Center for Sustaining Agriculture and Natural Resources, along with his colleagues Kevin Bladon and Rick Woodsmith, began examining the long-term impacts the fire had on the hydrologic system. His findings, recently published in the journal Hydrological Processes, reveal that fire can affect annual stream discharge, peak flows, low flows, and evapotranspiration even 40 years after the burn. Continue reading
By Adrienne Marshall
Late May in the Sierra Nevadas in 2015, a low snowpack year that enabled spring recreation in the high country. Photo: Darren Bagnall.
As an environmental scientist, I’ve done plenty of hiking in the western U.S., always with a map, water bottle and list of water sources. In dry areas it’s always smart to ration water until you get to a new source. Sometimes a stream has dried up for the season, or a pond is too scummy to drink from, so your supply has to stretch further than planned. On one memorable hike, I found that a water source was dry. The next one, three miles later, was dry too. And the one after that had a dead bear carcass in it. While one dry water source was tolerable, several in a row created a serious problem.
Something similar is happening to snow resources in the western United States. Scientists have long known that the warming temperatures associated with climate change are diminishing the region’s snowpack, with more precipitation falling as rain, rather than snow. That’s a problem because snowpack is a critical resource, acting as a natural reservoir that stores winter precipitation. Are we likely to face several low snowpack years in a row? Continue reading