Data: the nature of soil Blue Carbon varies across mangrove geomorphic settings

We sampled distinct mangrove coastal typologies spanning 36 degrees in latitude and 45 degrees in longitude across the Indo-West Pacific biogeographic region. We constrained our investigation to Rhizophora spp. mangroves, which is noteworthy for its ubiquitous occurrence in mangroves throughout the tropical world (Tomlinson 1986). We studied four types of mangrove settings: a delta setting, an estuary setting, a terrestrial open coast setting, and a karstic open coast setting . The delta setting (Can Gio mangrove) was located in the south of Vietnam (10°30′ N, 106°52′ E); the karstic open coast setting (Dumbéa sur mer mangrove) was in the French overseas territories of New Caledonia (22° 8' S, 166° 26' E). The terrestrial estuary and open coast terrestrial settings (Halloran and North Stradbroke mangroves) were located on the east coast of Australia (27° 31' S, 153° 27' E). At each site, we extracted soil cores from below the Rhizophora spp. mangrove forest, between 1 to 2 meters from a Rhizophora spp. tree trunk at 0-20 cm and 80-100 cm soil depth.本研究在印太生物地理区（Indo-West Pacific biogeographic region）内，选取跨越36个纬度跨度与45个经度跨度的多样红树林海岸类型开展采样。本研究将调查对象限定为红树属（Rhizophora spp.）红树林，该类群因在全球热带红树林中广泛分布而广受关注（Tomlinson，1986）。本研究共涵盖四类红树林生境：三角洲生境、河口生境、陆域开阔海岸生境与喀斯特开阔海岸生境。其中三角洲生境为芹苴红树林（Can Gio mangrove），位于越南南部（北纬10°30′，东经106°52′）；喀斯特开阔海岸生境为杜美亚滨海红树林（Dumbéa sur mer mangrove），地处法国海外领地新喀里多尼亚（南纬22°8′，东经166°26′）。陆域河口与陆域开阔海岸生境（哈洛兰与北斯特拉布鲁克红树林，Halloran and North Stradbroke mangroves）坐落于澳大利亚东海岸（南纬27°31′，东经153°27′）。在每个采样点，本研究均从红树属（Rhizophora spp.）红树林下方、距离红树属植株树干1~2米范围内的土壤中采集岩心样品，采样土层分别为0~20 cm与80~100 cm。