Saintilan Neil, Lymburner Leo, Wen Li, Haigh Ivan D, Ai Emma, Kelleway Jeffrey J, Rogers Kerrylee, Pham Tien Dat, Lucas Richard
School of Natural Sciences, Macquarie University.
Department of Planning and Environment.
Sci Adv. 2022 Sep 16;8(37):eabo6602. doi: 10.1126/sciadv.abo6602. Epub 2022 Sep 14.
Long-phase (interannual) tidal cycles have been shown to influence coastal flooding and sedimentation, but their role in shaping the extent and condition of tidal wetlands has received little attention. Here, we show that the 18.61-year lunar nodal cycle, popularly termed the "lunar wobble," is a dominant control over the expansion and contraction of mangrove canopy cover over much of the Australian continent. Furthermore, the contrasting phasing of the 18.61-year lunar nodal cycle between diurnal and semidiurnal tidal settings has mediated the severity of drought impacts in northern bioregions. Long-phase tidal cycles regulate maximum tide heights, are an important control over mangrove canopy cover, and may influence mangrove ecosystem services including forest productivity and carbon sequestration at regional scales.
长期（年际）潮汐周期已被证明会影响沿海洪水和沉积，但它们在塑造潮汐湿地范围和状况方面的作用却很少受到关注。在这里，我们表明，通常被称为“月球摆动”的18.61年月球交点周期，是澳大利亚大陆大部分地区红树林冠层覆盖范围扩张和收缩的主要控制因素。此外，日潮和半日潮环境中18.61年月球交点周期的不同相位，调节了北部生物区域干旱影响的严重程度。长期潮汐周期调节最大潮高，是红树林冠层覆盖的重要控制因素，并可能影响红树林生态系统服务，包括区域尺度上的森林生产力和碳固存。
