Coastal mangrove forests are at risk of being submerged due to sea-level rise (SLR). However, mangroves have persisted with changing sea levels due to a variety of biotic and physical feedback mechanisms that allow them to gain and maintain relative soil surface elevation. Therefore, mangrove’s resilience to SLR is dependent upon their ability to build soil elevation at a rate that tracks with SLR, or well-enough to migrate inland. Anthropogenic disturbances, such as altered hydrology and eutrophication, can degrade mangrove forest health and compromise this land building process, placing mangroves at greater risk. Much of Florida’s mangroves are adjacent to highly urbanized areas that produce nutrient-loaded runoff. This study assesses how experimental nutrient inputs in the eutrophic Caloosahatchee Estuary influence the soil surface elevation change (SEC) in two distinct mangrove zones. Annual rates of SEC were reduced by phosphorus additions and differed by mangrove zone, ranging from 0.67 ± 0.59 to 2.13 ± 0.61 and 4.21 ± 0.58 to 6.39 ± 0.59 mm year⁻¹ in the fringe and basin zone, respectively. This suggests that eutrophication can reduce the maximum potential SEC response to SLR and that a mangrove forest’s vulnerability to SLR is not uniform throughout forest but can differ by mangrove zone.

由于海平面上升（SLR），沿海红树林面临被淹没的风险。然而，由于各种生物和物理反馈机制使红树林能够获得并维持相对的土壤表面海拔，因此它们一直持续不断地变化着海平面。因此，红树林对 SLR 的恢复能力取决于它们以跟随 SLR 的速度增加土壤高度的能力，或者足以向内陆迁移的能力。人为干扰，例如水文变化和富营养化，可能会降低红树林的健康状况，并损害土地建设过程，使红树林面临更大的风险。佛罗里达州的大部分红树林毗邻高度城市化的地区，这些地区产生富含营养的径流。本研究评估了富营养化卡卢萨哈奇河口的实验养分输入如何影响两个不同红树林区的土壤表面海拔变化（SEC）。 SEC的年速率因磷的添加而降低，并且因红树林区而异，边缘区和盆地区的范围分别为0.67±0.59至2.13±0.61和4.21±0.58至6.39±0.59毫米年⁻¹ 。这表明富营养化可以降低 SEC 对 SLR 的最大潜在响应，并且红树林对 SLR 的脆弱性在整个森林中并不均匀，但可能因红树林区域而异。