North American tree-ring fire-scar site descriptions

Fire size and severity continue to increase across large parts of North America, driven by a combination of climate change and effects of human land use. Instrumental records are too short to fully understand patterns, trends, and drivers of fire that are necessary to model future fire. Tree-ring fire scars provide centuries-long records of fire regimes, including fire frequency, season, size, and fire-climate relationships. We compiled fire-scar site descriptions from greater than 100 researchers across the continent to produce the first North American tree-ring fire-scar network. These data provide descriptive information for all known tree-ring fire-scar sites in North America. Data fields include location, name, area and species sampled, years of the tree-ring fire-scar chronology, and references.

北美多数区域的火灾规模与严重程度持续加剧，这一趋势由气候变化与人类土地利用的共同影响驱动。现有器测记录时长过短，无法全面厘清火灾的格局、趋势与驱动因子，而这些信息正是模拟未来火灾情景所必需的核心依据。树木年轮火灾疤痕（tree-ring fire scar）可提供长达数百年的火灾制度（fire regime）记录，涵盖火灾发生频率、季节、规模以及火灾与气候的关联关系。我们联合北美地区逾100名研究人员，收集了火灾疤痕样地的描述数据，构建了首个北美树木年轮火灾疤痕网络（North American tree-ring fire-scar network）。本数据集为北美所有已知的树木年轮火灾疤痕样地提供了标准化描述信息，数据字段涵盖样地位置、名称、采样区域与树种、树木年轮火灾疤痕年表的覆盖年份，以及相关参考文献。