引江济太调水河段悬浮颗粒物中磷的形态与分布研究

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• 英文论文题名：Study of Forms and Distributions of Particulate Phosphorus in the River Reach: Diversion from the Yangtze River to the Tai Lake
• 论文作者：秦延文 ; 郑丙辉 ; 韩超南 ; 马迎群 ; 张雷 ; 杨晨晨
• 英文论文作者：Yanwen Qin ; Binghui Zheng ; Chaonan Han ; Yingqun Ma ; Lei Zhang ; Chenchen Yang ; State Environment Protection Key Laboratory of Estuary and Coastal Environment ; Chinese Research Academy of Environmental Sciences
• 年：2013
• 作者机构：中国环境科学研究院国家环境保护河口与海岸带环境重点实验室;
• 论文关键词：引江济太 ; 长江 ; 望虞河 ; 贡湖 ; 颗粒态磷 ; 形态 ; 分布
• 英文论文关键词：diversion from the Yangtze River to the Tai Lake ; the Yangtze River ; the Wangyu River ; the Gong Lake ; particulate phosphorus ; form ; distribution
• 会议召开时间：2013-12-26
• 会议录名称：2013年水资源生态保护与水污染控制研讨会论文集
• 语种：中文
• 分类号：X52
• 学会代码：HJKP
• 会议名称：2013年水资源生态保护与水污染控制研讨会
• 会议地点：中国黑龙江哈尔滨
• 主办单位：中国环境科学学会、环境保护部环境规划院、哈尔滨工业大学、哈尔滨师范大学、中国科学院南京地理与湖泊研究所
• 学会名称：中国环境科学学会
• 页数：8
• 文件大小：1266k
• 原文格式：D
• 会议级别：全国

摘要

2013年8月引江济太调水期间,采集调水河段长江-望虞河-贡湖表层水样,经0.45μm滤膜过滤处理得到悬浮颗粒物样品,开展悬浮颗粒物中磷形态(弱吸附态磷、可提取态有机磷、铁结合态磷、自生磷灰石磷、碎屑磷和非活性磷)的含量及空间分布特征研究。结果表明,长江-望虞河-贡湖段水体悬浮颗粒物中颗粒态总磷的含量范围为284.85μg/g-1814.12μg/g,主要以碎屑磷和非活性磷形态赋存,其含量之和平均占颗粒态总磷含量的56.95%。颗粒态总磷、自生磷灰石磷、碎屑磷和非活性磷含量的空间分布特征为"望虞河起始段>长江>望虞河入贡湖处>贡湖内",其与调水过程中颗粒物沉降作用及自然来源磷的输入有关。贡湖内悬浮颗粒物中弱吸附态磷、可提取态有机磷、铁结合态磷含量低于长江、望虞河段,然而其3者含量之和占颗粒态总磷的质量分数高于长江段,这跟贡湖内水体中藻类生长情况相对于长江比较旺盛有关。
surface water were collected from the Yangtze River, the Wangyu River and the Gong Lake during diversion from the Yangtze River to the Tai Lake in August 2013, and were filtered through 0.45μm filter membranes to get samples of suspended particulate matters. The phosphorus in the suspended particulate matters were divided into six forms, which were exchangeable phosphorus(Ex-P), exchangeable organic phosphorus(Ex-Org-P), iron-bound phosphorus(Fe-P), authigenic phosphorus(Ca-P), detrital phosphorus(HCl-P), and refractory phosphorus(Res-P), and their concentration distributions were analyzed. The results indicated that the concentration range of the total phosphorus in the study area was 284.85μg/g~1814.12μg/g.The HCl-P and Res-P were the main forms and their sum concentration took up 56.95% of the total phosphorus of particulate matters. The space distribution characteristics of the total phosphorus of particulate matters, the Ca-P, the HCl-P, the Res-P were influenced by settlement actions of particulate matters during diversion process and inputs of natural phosphorus sources, and their concentrations in the study area showed the following decreasing order: the primary section of the Wangyu River > the Yangtze River > the Wangyu River falling into the Gong Lake > the Gong Lake. The concentrations of Ex-P, Ex-Org-P and Fe-P in the Gong Lake were lower than concentrations in the Yangtze River and the Wangyu River. However, the sum percentage of the Ex-P, Ex-Org-P and Fe-P taking up the total phosphorus of particulate matters in the Gong Lake, was higher than that of percentage in the Yangtze River. This was related to more excessive phytoplankton growth in the Gong Lake than the Yangtze River.

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