|
|||||
|
|
| 天津汉沽海域表层沉积物中P的赋存特征分析 | |
| 引用本文： | 赵迪,侯立军,宗海波,丁平兴,张淑芳,张宇铭. 天津汉沽海域表层沉积物中P的赋存特征分析[J]. 海洋环境科学, 2012, 31(2): 176-180 |
| 作者姓名： | 赵迪 侯立军 宗海波 丁平兴 张淑芳 张宇铭 |
| 作者单位： | 1. 华东师范大学河口海岸国家重点实验室,上海,200062 2. 国家海洋环境监测中心,辽宁大连,116023 3. 中国海洋大学海洋环境学院,山东青岛,266100 |
| 基金项目： | 海洋公益性行业科研专项经费项目，国家自然科学基金，中央高校基本科研业务费专项基金，河口海岸学国家重点实验室科研业务经费 |
| 摘 要： | 利用连续分级提取方法,对天津汉沽海域表层沉积物中P的含量水平、赋存形态、及其生物有效性进行了分析。结果表明:表层沉积物中TP的含量在525.68×10-6～688.39×10-6之间,平均含量约为618.18×10-6,其中86.98%以IP的形式存在;而在IP中,FA-P是其主要的赋存形态,平均约占TP的59.54%;IP含量范围为48.52×10-6～146.72×10-6,平均约占TP的13.02%。P的生物有效性分析结果显示,潜在的生物有效P主要包括Ads-P、Fe-P和OP等3种赋存形态,而天津汉沽海域表层沉积物中潜在的生物有效P含量约为465.87×10-6～609.79×10-6,平均约占沉积物TP的89.14%,表明研究区域内沉积物具有很强的释P潜力。 |
| 关 键 词： | 沉积物 磷 赋存形态 生物有效性 汉沽海域 |
Species of phosphorus in surface sediments from the sea area of Hangu in Tianjin |
|
| ZHAO Di , HOU Li-jun , ZONG Hai-bo , DING Ping-xing , ZHANG Shu-fang , ZHANG Yu-ming. Species of phosphorus in surface sediments from the sea area of Hangu in Tianjin[J]. Marine Environmental Science, 2012, 31(2): 176-180 | |
| Authors: | ZHAO Di HOU Li-jun ZONG Hai-bo DING Ping-xing ZHANG Shu-fang ZHANG Yu-ming |
| Affiliation: | 1.State Key Laboratory of Estuarine and Coastal Research,East China Normal University,Shanghai 200062,China;2.Center of National Marine Environmental Monitoring,Dalian 116023,China;3.College of Physical and Environmental Oceanography,Qingdao 266100,China) |
| Abstract: | Species,contents and bioavailability of phosphorus in surface sediments from the sea area of Hangu in Tianjin were investigated using a sequential phosphorus extraction method.The results showed that the total phosphorus in the surface sediments were 525.68×10-6～688.39×10-6 and were dominated by inorganic phosphorus which on average accounted for 86.98% of total phosphorus.Among the species of inorganic phosphorus,detrital phosphorus was its dominant form which on average occupied 59.54% of total phosphorus.It was also found that bioavailable phosphorus in sediments mainly included loosely adsorbed phosphorus,Fe-bound phosphorus and organic phosphorus.Bioavailable phosphorus at the study area varied from 465.87 10-6 to 609.79×10-6,accounting for 89.14% of the sedimentary phosphorus pool.This observation reflected that sediments from the sea area of Hangu had a strong ability of release phosphorus into the pelagic water. |
| Keywords: | sediment phosphorus species bioavailability sea area of Hangu |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |