Systematic review of post-fire forest recovery at high latitudes

Through this systematic review, we sought to determine the general
relationship between post-fire tree regeneration densities and latitude in
forests above 40º N/S. We expected regeneration densities post-fire would
decrease with increasing latitude, and that forest regeneration would be
negatively impacted by high burn severities, forest management, harsh site
conditions, and unprotected microsites. We also anticipated that
light-demanding species with adaptations to fire would replace
shade-tolerant species that lack such adaptations post-fire. To achieve
our objective and test our hypotheses, we analyzed 93 articles that
directly measured post-fire regeneration at or above 40º N/S.

本项系统性综述旨在明确北纬/南纬40°以上森林中，火灾后树木更新密度与纬度之间的普遍关联。我们预期，火灾后树木更新密度会随纬度升高而降低，且森林更新会受到高火灾烈度、森林经营措施、严苛立地条件以及无保护微生境的负面影响。同时我们预计，具备火灾适应性的喜光物种，会在火灾后取代缺乏此类适应性的耐阴物种。为达成研究目标并验证上述假设，我们共分析了93篇针对北纬/南纬40°及以上区域火灾后树木更新情况开展直接测量的学术文献。