| 南海北部渔场表层沉积物中的硫化物 |
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| 引用本文： | 甘居利,李纯厚,贾晓平,王增焕,蔡文贵,吴洽儿.南海北部渔场表层沉积物中的硫化物[J].广东海洋大学学报,2001,21(2):44-47. |
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| 作者姓名： | 甘居利 李纯厚 贾晓平 王增焕 蔡文贵 吴洽儿 |
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| 作者单位： | 中国水产科学研究院南海水产研究所, |
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| 基金项目： | 中国水产科学研究院海洋渔业生态环境与污染监控技术重点开放实验室资助 |
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| 摘 要： | 为了给南海北部渔场的资源和环境保护提供基础数据,用碘量法测定了南海北部陆架区表层沉积物中硫化物含量.结果表明,全部28份样品中硫化物含量为3.3～42.2mg/kg(干重,下同),平均为12.1mg/kg,符合外海含量低的一般规律,明显低于沿岸海湾的含量,远低于日本渔业环境质量标准(200mg/kg)和安全下限值(400mg/kg).硫化物含量在测站间和不同区域间存在一定差异,南北方向呈近岸(13.1mg/kg)略高于离岸(12.1mg/kg)、离岸略高于远岸(11.1mg/kg)的梯度分布,但梯度差异不显著(p＞0.10);东西方向的分布特点是粤西海域(23.7mg/kg)＞海南岛以东(15.3mg/kg)＞台湾浅滩(9.4mg/kg)≈粤东海域(8.7mg/kg)≈珠江口外海域(8.6mg/kg).空间分布不太均匀主要是受沉积物类型的影响,与陆源硫化物输入的关系不大.
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| 关 键 词： | 硫化物 沉积物 渔场 南海北部 |
| 文章编号： | 1007-7995(2001)02-0044-04 |
| 修稿时间： | 2001年1月16日 |
Sulfide in the Sediments of Surface Layer from Northern Fishery Fields of South
China Sea |
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| Gan Juli,Li Chunhou,Jia Xiaoping,Wang Zenghuan,Cai Wengui,Wu Qiaer.Sulfide in the Sediments of Surface Layer from Northern Fishery Fields of South
China Sea[J].Journal of Zhanjiang Ocean University,2001,21(2):44-47. |
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| Authors: | Gan Juli Li Chunhou Jia Xiaoping Wang Zenghuan Cai Wengui Wu Qiaer |
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| Abstract: | In order to protect fishery source and fishery environment, the sulfide contents in the sediments of surface layer from northern South China Sea were determined by means of iodimetry. The sulfide contents (dry weight) in all 28 samples were 3.3 ~44.2 (average 12.1) mg/kg, which were much lower than that in Japanese Fishery Environment Standard (200 mg/kg), in the order of near shore (13.1), off shore ( 12.1) and far from shore (11.1), but the difference between any two of the 3 kinds of shore were not obvious (P>0.10 ). The average content in west Guangdong (23.7 mg/kg) was higher than that in Pearl River Estuary (8.6 mg/kg), east Guangdong (8.7 mg/kg) and Taiwan Bank (9.4 mg/kg). The sulfide contents unevenly distributed in various sampling sites is due to the size and type of sediments, instead of the sulfide input from the land of Guangdong province. |
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| Keywords: | Sulfide Sediments Fishery fields South China Sea |
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