U.S. Forest Service publishes report on effects of drought on forests and rangelands in the United States

The U.S. Forest Service recently released a new report, Effects of Drought on Forests and Rangelands in the United States: A Comprehensive Science Synthesis, that provides a national assessment of peer-reviewed scientific research on the impacts of drought on U.S. forests and rangelands. The report examines ways to understand and mitigate the effects of drought on forests and rangeland.

The report was edited by Forest Service scientists in partnership with Duke University, and authored by 77 scientists from the Forest Service, other federal agencies, research institutions, and universities across the United States.

The abstract for the report follows.

“This assessment provides input to the reauthorized National Integrated Drought Information System (NIDIS) and the National Climate Assessment (NCA), and it establishes the scientific foundation needed to manage for drought resilience and adaptation. Focal areas include drought characterization; drought impacts on forest processes and disturbances such as insect outbreaks and wildfire; and consequences for forest and rangeland values. Drought can be a severe natural disaster with substantial social and economic consequences. Drought becomes most obvious when large-scale changes are observed; however, even moderate drought can have long-lasting impacts on the structure and function of forests and rangelands without these obvious large-scale changes. Large, stand-level impacts of drought are already underway in the West, but all U.S. forests are vulnerable to drought. Drought-associated forest disturbances are expected to increase with climatic change. Management actions can either mitigate or exacerbate the effects of drought. A first principal for increasing resilience and adaptation is to avoid management actions that exacerbate the effects of current or future drought. Options to mitigate drought include altering structural or functional components of vegetation, minimizing drought-mediated disturbance such as wildfire or insect outbreaks, and managing for reliable flow of water.”

Reference 

Vose, J.M., J.S. Clark, C.H. Luce, and T. Patel-Weynard, eds. 2016. Effects of drought on forests and rangelands in the United States: A comprehensive science synthesis. General Technical Report WO-93b. Washington, DC: U.S. Department of Agriculture, Forest Service. http://www.treesearch.fs.fed.us/pubs/50261