以中国红树林主要分布地区——海南、广东、广西、福建的13个红树林区为研究对象,对沉积物中硫的分布特征及相关影响因素进行了分析。中国红树林地区沉积物中硫含量为0.009%--0.809%,平均含量为0.214%,远高于非红树林生长地区沉积物中硫的平均含量。海南、广东、广西、福建四省区红树林沉积物中硫的平均含量分别为:0.34%、0.19%、0.20%、0.18%。13个地区含硫量高低顺序为:三亚、东寨港、云霄、钦州、俄湾、姚家屿、高桥、山口、大冠沙、北仑河口、福田、洛阳桥、浮宫。各个不同红树林地区沉积物中的硫含量差异显著。硫含量与有机质含量、盐度显著正相关,与PH值显著负相关。土壤粒度组成以及铁含量对土壤中全硫含量有一定的影响。Thirteen important mangrove areas including Hainan,Guangdong,Guangxi,Fujian were studied,and distribution and influential factors of sulfur were discussed.Total Sulfur(TS) content ranged 0.009%--0.809%,with an average value of 0.214%,which was much higher than that in the sediments without mangrove.The TS concentrations in Hainan,Guangdong,Guangxi and Fujian were: 0.34%,0.19%,0.20% and 0.18% respectively.The order of TS concentration in sediments of these mangrove wetlands decreased: Sanya>Dongzhaigang>Yunxiao>Qinzhou>Ewan>Yaojiayu>Gaoqiao>Shankou>Daguansha>Beilunhekou>Futian>Luoyangqiao>Fugong.Organic matter and salinity correlated significantly with the TS concentration in sediments;pH correlated negatively with the TS concentration.Size fraction and iron content also influenced TS concentration in sediments.国家自然科学基金项目(40676064;305301502
