米兰体育app下载 亚马逊三角洲新颖的红树林环境和组成

引用

Bernardino AF、Mazzuco ACA、Souza FM、Santos TMT、Sanders CJ、Massone CG、Costa RF、Silva AEB、Ferreira TO、Nóbrega GN、Silva TSF 和 Kauffman JB (2022) 亚马逊三角洲的新颖红树林环境和组成。当前生物学，32 (16)，第 3636-3640.e2 页。 https://doi.org/10.1016/j.cub.2022.06.071

摘要
巴西的淡水洪泛区（várzeas 和 igapós）森林和咸水红树林都是丰富且详细描述的生态系统。1 然而，亚马逊三角洲存在着有趣且独特的湿地森林，在淡水潮汐环境中生长着大片红树林。与上游的漫滩森林不同，这些生态系统的水文主要由 4-8 m 的大潮汐以及亚马逊河的大量淡水排放驱动。我们探索了亚马逊三角洲（00°52ʹ N 至 01°41ʹ N）上的这些红树林，发现地表水盐度始终如一5; soil pore water salinity in these mangrove forests ranged from 0 nearest the Amazon mouth to only 5–11 at the coastal margins to the north (01°41ʹ N, 49°55′ W). We also recorded a unique mix of mangrove-obligate (Avicennia sp., Rhizophora mangle) and facultative-wetland species (Mauritia flexuosa, Pterocarpus sp.) dominating these forests. This unique mix of plant species and soil porewater chemistry exists even along the coastal strands and active coastlines of the Atlantic Ocean. Part of these unique mangroves have escaped current global satellite mapping efforts, and we estimate that they may add over 180 km2 (20% increase in mangrove area) within the Amazon Delta. Despite having a unique structure and function, these freshwater-brackish ecosystems likely provide similar ecosystem services to most mangroves worldwide, such as sequestering large quantities of organic carbon, protection of shoreline ecosystems from erosion, and habitats to many terrestrial and aquatic species (monkeys, birds, crabs, and fish).

关键字
亚马逊三角洲；红树林；湿地；蓝碳；海洋生态学；海洋学

期刊
当代生物学：第 32 卷，第 16 期

• 亚马逊三角洲新颖的红树林环境和组成