Tag: climate forests woodlands

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Landowners Can Apply Strategies to Help Forests Adapt to Climate Change

Photo 1: Forest trees get ready for fall on top of Mt. Lemmon in Arizona. Photo credit: Martha Gebhardt.

By Martha Gebhardt, School of Natural Resources and the Environment, University of Arizona

 

Forest vulnerability is expected to increase in decades to come, according to a draft of the National Climate Assessment released in January of 2013. The report stated that as temperatures continue to rise, droughts, insect outbreaks, and wildfires would all occur more regularly. The forestry chapter of …

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Overview of the Effects of Climatic Variability on Forest Ecosystems in the Great Plains Region of the United States

The Global Change Research Act of 1990 requires the U.S. Global Change Research Program (USGCRP) to produce the National Climate Assessment (NCA) for the President and Congress every four years, analyzing the effect of global change on multiple sectors and regions in the United States and projecting major trends forward for up to 100 years. Effects on Climatic Variability and Change on Forest Ecosystems: A Comprehensive Science Synthesis for the U.S. Forest Sector (PNW-GTR-870) serves as the U.S. Forest Service …

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Overview of the Effects of Climatic Variability and Change on Forest Ecosystems in the Midwest United States

The Global Change Research Act of 1990 requires the U.S. Global Change Research Program (USGCRP) to produce the National Climate Assessment (NCA) for the President and Congress every four years, analyzing the effect of global change on multiple sectors and regions in the United States and projecting major trends forward for up to 100 years. Effects on Climatic Variability and Change on Forest Ecosystems: A Comprehensive Science Synthesis for the U.S. Forest Sector (PNW-GTR-870) serves as the U.S. Forest Service …

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Overview of the Effects of Climatic Variability and Change on Forest Ecosystems in the Northeast United States

The Global Change Research Act of 1990 requires the U.S. Global Change Research Program (USGCRP) to produce the National Climate Assessment (NCA) for the President and Congress every four years, analyzing the effect of global change on multiple sectors and regions in the United States and projecting major trends forward for up to 100 years. Effects on Climatic Variability and Change on Forest Ecosystems: A Comprehensive Science Synthesis for the U.S. Forest Sector (PNW-GTR-870) serves as the U.S. Forest Service …

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Overview of Effects of Climatic Variability and Change on Forest Ecosystems in Alaska

The Global Change Research Act of 1990 requires the U.S. Global Change Research Program (USGCRP) to produce the National Climate Assessment (NCA) for the President and Congress every four years, analyzing the effect of global change on multiple sectors and regions in the United States and projecting major trends forward for up to 100 years. Effects on Climatic Variability and Change on Forest Ecosystems: A Comprehensive Science Synthesis for the U.S. Forest Sector (PNW-GTR-870) serves as the U.S. Forest Service …

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Overview of the Effects of Climatic Variability and Change on Forest Ecosystems of the Southwest United States

The Global Change Research Act of 1990 requires the U.S. Global Change Research Program (USGCRP) to produce the National Climate Assessment (NCA) for the President and Congress every four years, analyzing the effect of global change on multiple sectors and regions in the United States and projecting major trends forward for up to 100 years. Effects on Climatic Variability and Change on Forest Ecosystems: A Comprehensive Science Synthesis for the U.S. Forest Sector (PNW-GTR-870) serves as the U.S. Forest Service …

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Overview of the Effects of Climatic Variability and Change on Forest Ecosystems of Northwest United States

The Global Change Research Act of 1990 requires the U.S. Global Change Research Program (USGCRP) to produce the National Climate Assessment (NCA) for the President and Congress every four years, analyzing the effect of global change on multiple sectors and regions in the United States and projecting major trends forward for up to 100 years. Effects on Climatic Variability and Change on Forest Ecosystems: A Comprehensive Science Synthesis for the U.S. Forest Sector (PNW-GTR-870) serves as the U.S. Forest Service …

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There have always been extreme weather events, so why are scientists talking so much about extreme events now?

Recent climate research synthesized in the 2007 and 2014 Intergovernmental Panel on Climate Change Assessment Reports documents that there have been observable changes in extreme weather events over the past fifty years that are consistent with the expected impacts in a warming climate. The report shows that there has been a significant shift towards fewer cold and more heat extremes across many parts of the globe over the past fifty years. The 2014 National Climate Assessment reaffirms that U.S. average …

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Watersheds and Vegetation

Adapted from: Mary Nichols. 2007. Chapter 4: Stream processes in riparian areas. In: G. Zaimes (ed). Understanding Arizona’s Riparian Areas. University of Arizona Cooperative Extension. AZ 1432. Available at http://cals.arizona.edu/pubs/natresources/az1432.pdf
Figure 1. Vegetation found in watersheds can influence channel formation. Trees and fine-stemmed vegetation, such as grasses, influence how water flows, sediment deposition, and channel roughness. Photo by Chris Evans, River to River CWMA. Image courtesy of forestryimages.org.

The relatively dense stands of vegetation found along channels form in response …

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Purple Loosestrife-Lythrum salicaria

Written by D.J. Moorhead and G.K. Douce for Forest Encyclopedia Network
Figure 1. Purple loosestrife is easily recognized in the summer and early fall by its showy spike of purple flowers. Photo by Eric Coombs, Oregon Department of Agriculture, courtesy of forestryimages.org

Purple Loosestrife is a tall, perennial forb that can grow up to 10 feet in height. It is easily distinguished by the abundant, showy spikes of purple flowers that occur at the tops of the plants (Swearingen et …

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