Landscape Evaluation and Restoration Planning

Hessburg, Paul F.; Salter, R. Brion; Reynolds, Keith M.; Dickinson, James D.; Gaines, William L.; Harrod, Richy J.

doi:10.1007/978-3-642-32000-2_7

Cited by 1 publication

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“…The work of Everett et al (1994aEverett et al ( , 1994b was roughly tripled in a subsequent project, the 50 million ha Interior Columbia Basin Ecosystem Management Project (ICBEMP, Hann et al, 1997;Hessburg et al, 1999aHessburg et al, , 1999cHessburg et al, , 2000aRaphael et al, 2001), which is home to extensive MSForests. Subsequently, Hessburg and others (Gärtner et al, 2008;Hessburg et al, 1999bHessburg et al, , 1999dHessburg et al, , 2004Hessburg et al, , 2013Hessburg et al, , 2014Reynolds and Hessburg, 2005) developed operational decision support tools for estimating departures of contemporary landscape pattern conditions from both HRV and climate change analogue conditions for the mid21st century, which they called the future range of variation (FRV, Hessburg et al, 2013Hessburg et al, , 2014Hessburg et al, , 2015. Spatially explicit prescriptions for restoring patterns of large landscapes are derived from these landscape evaluations.…”

Section: The Importance Of Understanding the Historical Range Of Varimentioning

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Tamm Review: Management of mixed-severity fire regime forests in Oregon, Washington, and Northern California

Hessburg

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Perry

et al. 2016

Forest Ecology and Management

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a b s t r a c tIncreasingly, objectives for forests with moderate-or mixed-severity fire regimes are to restore successionally diverse landscapes that are resistant and resilient to current and future stressors. Maintaining native species and characteristic processes requires this successional diversity, but methods to achieve it are poorly explained in the literature. In the Inland Pacific US, large, old, early seral trees were a key historical feature of many young and old forest successional patches, especially where fires frequently occurred. Large, old trees are naturally fire-tolerant, but today are often threatened by dense understory cohorts that create fuel ladders that alter likely post-fire successional pathways. Reducing these understories can contribute to resistance by creating conditions where canopy trees will survive disturbances and climatic stressors; these survivors are important seed sources, soil protectors, and critical habitat elements. Historical timber harvesting has skewed tree size and age class distributions, created hard edges, and altered native patch sizes. Manipulating these altered forests to promote development of larger patches of older, larger, and more widely-spaced trees with diverse understories will increase landscape resistance to severe fires, and enhance wildlife habitat for underrepresented conditions.Closed-canopy, multi-layered patches that develop in hot, dry summer environments are vulnerable to droughts, and they increase landscape vulnerability to insect outbreaks and severe wildfires. These same patches provide habitat for species such as the northern spotted owl, which has benefited from increased habitat area. Regional and local planning will be critical for gauging risks, evaluating trade-offs, and restoring dynamics that can support these and other species. The goal will be to manage for heterogeneous landscapes that include variably-sized patches of (1) young, middle-aged, and old, closedcanopy forests growing in upper montane, northerly aspect, and valley bottom settings, (2) a similar diversity of open-canopy, fire-tolerant patches growing on ridgetops, southerly aspects, and lower montane settings, and (3) significant montane chaparral and grassland areas. Tools to achieve this goal http://dx

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