A planted and a natural stand that started colonizing a coastal lagoon after an artificial channel permanently connected it to the sea were studied in Brazil’s Southwestern Atlantic coast to assess the ecological role of emerging mangrove forests and the ecological changes of the supporting ecosystems (i.e., coastal lagoon). In 15 years, the natural mangrove stand area increased 12 times, and the planted stand 95 times in 6 years, covering 25 and 1.9 ha, respectively. Although the natural and planted stands have different ages (approximately 42 and 6 years, respectively), their species richness and relative abundance are similar but differ in tree size. Consequently, above-ground and roots biomasses were higher in the natural stand. Compared to other mangroves from the Neotropical region, the studied mangroves’ biomass and carbon stock were lower. Nevertheless, since 2003 it sequestered 4,063.1 ± 894 Mg of carbon dioxide (CO₂) from the atmosphere, only considering the forest biomass, which is equivalent to 0.03‰ of the Brazilian industrial emissions in 2016. The colonization of the lagoon by mangroves resulted in changes in the ecosystem state. This ecological change imposes an understanding of the new environment’s function and dynamic to support management practices and prevent and solve conflicts among local players.

在巴西西南大西洋沿岸，研究了人工和永久性人工林，该人工林永久性地将人工泻湖永久性地连接到海洋之后，该人工林和人工林开始在沿海泻湖中定殖，以评估新兴红树林的生态作用和辅助生态系统（即沿海生物）的生态变化。泻湖）。在15年中，天然红树林的林分面积增加了12倍，而在6年中种植的林分达到95倍，分别覆盖了25公顷和1.9公顷。尽管天然林和人工林的年龄不同（分别为42岁和6年），但它们的物种丰富度和相对丰度相似，但树木大小不同。因此，天然林中地上和根系的生物量较高。与新热带地区的其他红树林相比，所研究的红树林的生物量和碳储量较低。₂）从大气中，仅考虑森林生物量，这相当于2016年巴西工业排放量的0.03‰。红树林对泻湖的定殖导致生态系统状态发生变化。这种生态变化使人们对新环境的功能和动态有了了解，以支持管理实践并防止和解决本地参与者之间的冲突。