Local Planning Considerations for the Wildland - Structural Intermix in the Year 2000 1
نویسنده
چکیده
California's foothill counties are the scene of rapid development. All types of construction in former wildlands is creating an intermix of wildland-structures-wildland that is different from the traditional "urban-wildland interface." The fire and structural environment for seven counties is described. Fire statistics are compared with growth patterns from 1970 to 1985. Potentials for the year 2000 are suggested. California planning law is overviewed in relation to development. Local governments and fire services have underutilized existing authorities in describing and mitigating fire impacts in the intermix. Productive ways of improving mitigation requirements are suggested. A stronger planning-related partnership between fire services and local government is called for. Recommendations are made in the areas of legislative improvements, applied research, and strategic fire pre-planning. The study is presented from the perspective of a retired fire management specialist who is now a County Planning Commissioner. The presence of structures in wildland areas of California has been a continuing fire problem for over 60 years. As population and development increase, so do the cost and loss impacts of wildland-structural fire. Whether structure fire spreads to wildlands, or wildland Presented at the Symposium on Wildland Fire 2000, April 27-30, 1987, South Lake Tahoe, California. Planning Commissioner, County of Tuolumne. California. fire ignites structures, the complexities of wildland fire management are drastically increased by all forms of development. The problem has mushroomed in seven California "foothill" or "Mother Lode" counties used as a study area. Fifteen years (1970 to 1985) of history confirm that fire trends follow population increases. Those trends indicate that a significant impact has already occurred. Growth predictions to the year 2000 indicate that greater impacts are ahead. The study area represents a change in character of the wildland-structural relationship from "interface" to "intermix." Former boundary definition between structural encroachment and wildlands has essentially been lost; structures are now present on a random or matrix pattern throughout large areas. The intermix adds another dimension of difficulty to fire suppression, increases costs and losses, and presents additional threat to public safety. Neither local government nor fire services have adequately recognized this problem. Unacceptable adverse impacts will undoubtedly occur in the future unless changes are made in both fire management and local planning procedures.
منابع مشابه
Human influence on California fire regimes.
Periodic wildfire maintains the integrity and species composition of many ecosystems, including the mediterranean-climate shrublands of California. However, human activities alter natural fire regimes, which can lead to cascading ecological effects. Increased human ignitions at the wildland-urban interface (WUI) have recently gained attention, but fire activity and risk are typically estimated ...
متن کاملThe wildland-urban interface raster dataset of Catalonia
We provide the wildland urban interface (WUI) map of the autonomous community of Catalonia (Northeastern Spain). The map encompasses an area of some 3.21 million ha and is presented as a 150-m resolution raster dataset. Individual housing location, structure density and vegetation cover data were used to spatially assess in detail the interface, intermix and dispersed rural WUI communities with...
متن کاملStructural Wildland Intermix1
According to the California Fire Census, more than 390 of about 1,000 separate fire departments currently claim to have an urban wildland interface problem. These communities range in size from small fire districts to metropolitan fire departments. The census contains numerous data elements that reflect both the prevention and suppression capacity of the California Fire Service. This document c...
متن کاملPhysics-based Modeling of Wildland-urban Interface Fires
This paper addresses the development of a practical physics-based model for fires in the wildland-urban intermix. These fires arise when wildland burning invades the built environment. Fire models for ignition and spread must consider individual fuel elements of both vegetation and structures in order to assess fire risk of developed properties. Successful prediction of wildland fire spread has...
متن کاملA Consideration of Collective Memory in African American Attachment to Wildland Recreation Places
This study examines the effect of race on place attachment to wildland areas. It is generally assumed that African Americans have a more negative impression of wildlands, compand to white ethnic groups. Studies from past decades report that blacks show less aesthetic preference for wildland, unstructured environments and are also less environmentally aware than whites. While it is assumed that ...
متن کامل