Grazing in California's Mediterranean Multi-Firescapes

Lynn Huntsinger,Sheila Barry

doi:10.3389/fsufs.2021.715366

Abstract

The California landscape is layered and multifunctional, both historically and spatially. Currently, wildfire size, frequency, and intensity are without precedent, at great cost to human health, property, and lives. We review the contemporary firescape, the indigenous landscape that shaped pre-contact California's vegetation, the post-contact landscape that led us to our current situation, and the re-imagined grazing-scape that offers potential relief. Vegetation has been profoundly altered by the loss of Indigenous management, introduction of non-native species, implantation of inappropriate, militarized, forest management from western Europe, and climate change, creating novel ecosystems almost always more susceptible to wildfire than before. Vegetation flourishes during the mild wet winters of a Mediterranean climate and dries to a crisp in hot, completely dry, summers. Livestock grazing can break up continuous fuels, reduce rangeland fuels annually, and suppress brush encroachment, yet it is not promoted by federal or state forestry and fire-fighting agencies. Agencies, especially when it comes to fire, operate largely under a command and control model, while ranchers are a diverse group not generally subject to agency regulations, with a culture of autonomy in decision-making and a unit of production that is mobile. Concerns about potential loss of control have limited prescribed burning despite landowner and manager enthusiasm. Agriculture and active management in general are much neglected as an approach to developing fire-resistant landscape configurations, yet such interventions are essential. Prescribed burning facilitates grazing; grazing facilitates prescribed burning; both can reduce fuels. Leaving nature “to itself” absent recognizing that California's ecosystems have been irrecoverably altered has become a disaster of enormous proportions. We recommend the development of a database of the effects and uses of prescribed fire and grazing in different vegetation types and regions throughout the state, and suggest linking to existing databases when possible. At present, livestock grazing is California's most widespread vegetation management activity, and if purposefully applied to fuel management has great potential to do more.

Highlights

THE LANDSCAPE OF MARSOn September 9, 2020 we woke up to red skies in our home along the San Francisco Bay
We review the contemporary firescape, the indigenous landscape that shaped pre-contact California’s vegetation, the post-contact landscape that led us to our current situation, and the re-imagined grazing-scape that offers potential relief
While professional foresters and agency land managers once considered intentional burning a hostile act and damaging to forests, and livestock grazing a danger to ecosystems, there is considerable evidence that with good management, neither of these things is true

Summary

INTRODUCTION

On September 9, 2020 we woke up to red skies in our home along the San Francisco Bay. California’s wildfire crisis is partly a function of society’s activities at multiple scales: globally, with the economic and political drivers that feed climate change, nationally, with social attitudes, norms, and values and subsequent policies and practices for land management and conservation, as related to science, fire, and traditional knowledge; statewide, in policies for land use and management; county and municipal level, a locus of land use planning and policy; and locally, with the activities of landowners and residents in fire-prone areas It is a function of a novel climate interacting with a mix of native and abundant non-native vegetation, and the loss of anthropogenic fire regimes that shaped the vegetation for thousands of years.

A Deadly and Costly Landscape

Findings

CONCLUSIONS