Literature Review on the Effects of Prescription Fire on theEcology of Site 300

Preston, R

关键词: ANIMALS;    BURNS;    CALIFORNIA;    ECOLOGY;    ENVIRONMENTAL IMPACTS;    EVALUATION;    FIRES;    GRAMINEAE;    HAZARDS;    LAWRENCE LIVERMORE NATIONAL LABORATORY;    PLANTS;    RANGELANDS;   

DOI  :  10.2172/1021553
RP-ID  :  LLNL-SR-473494
PID  :  OSTI ID: 1021553
Others  :  TRN: US201118%%36

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Lawrence Livermore National Laboratory has historically conducted prescription burns across approximately 2,000 acres of Site 300 on an annual basis to safeguard test facilities and operations from the risk of wildfire encroachment. Prescription burns began in 1960, and although fire frequency varies among the designated burn areas, all have been burned at least once. A patchwork of native perennial grassland communities and associated special-status plant and animal populations occur onsite in many areas that have been receiving these treatments. Because the size and locations of prescription burns may shift in coming years, an evaluation is warranted to determine how these shifts may affect listed biota, including rare plants, and the distinct ecological conditions present on the site. This report presents the results of a literature review conducted by ICF International (ICF) to collect basic information on native perennial grasslands in California, the influence of fire on these grasslands, and management tools for restoring and maintaining them. The objective of this study was to review the scientific literature on California native grasslands and summarize the current state of knowledge pertaining to the possible effects -- both beneficial and detrimental -- of prescribed fire on the ecology of Site 300. The results of this review are intended to inform future management practices that may be carried out at Site 300 to maintain the plant and wildlife communities and to ensure that the ecological conditions benefit the special-status species that inhabit the Site. This review is also intended to identify a study approach to investigate changes over the next 10 years in the burned areas and in areas where burning will be discontinued.