干旱区生态环境知识资源中心(Arid): 黄河中游表层沉积物中无机磷的化学形态研究

Arid

	黄河中游表层沉积物中无机磷的化学形态研究
其他题名	Chemical Forms of Inorganic Phosphorus in Sediments in the Middle of the Yellow River
	李北罡; 郭博书
ISSN	1672-2043
出版年	2006
卷号	25 期号:6 页码:1607-1610
中文摘要	采用连续浸提法对黄河中游不同粒级表层沉积物中无机磷的各种存在形态进行了研究.结果发现,黄河中游表层(5 cm)沉积物中总无机磷的含量范围为1187.08～1 467.98 mug·g-1,平均为1 360.68 mug·g-1;在所有不同粒级的表层沉积物中Ca-P含量占总无机磷的绝大部分,Fe-P含量极微,各形态无机磷含量的高低顺序为:钙结合态磷(Ca-P)、闭蓄态磷(Obs-P)、铝结合态磷(AlP)、吸附态磷(Ads-P)和铁结合态磷(Fe-P);除Ca-P(Fe-P不确定)外,其他各形态磷的的含量均随沉积物粒度变细而增高.
英文摘要	The paleo-productivity of some sea waters and fresh water was controlled by phosphorus, affecting the carbon dioxide flux between sea and air. Phosphorus in the ocean is transported from river and with the sand dust, phosphorus circulation in northern waters of our eountry follows the way of western region desert in Inner Mongolia - sandstorm- Yellow River- Yellow River mouth-Yellow Sea and constitutes a part of the world phosphorus circulation. The desert along the upper stream banks of Yellow River is the source of phosphorus in the Yellow River, and solid partieles of the Yellow River become a carrier of phosphorus transport. To understand the cycling of phosphorus in the northern waters of China and its effect on paleo-productivity, it is important to obtain a better insight into the behavior of phosphorus in Yel- low River sediments. Inorganic phosphorus of various forms and different particle sizes in sediments of the middle of the Yellow River were studied with the sequential extraction method. The result showed that the concentration of total inorganic phosphorus in the surface sediments of the middle of the Yellow River ranged from 1 187.08 to 1 467.98 mug·g^- 1, with the average value 1 360.68 mug·g^- 1. Ca-P was found to he the major phosphorus form in the total inorganie phosphorus in the sediments with different particle sizes and Obs-P the second, Al-P and Ads- P the third, Fe-P existed in minor quantities. Except Ca-P, the contents of all other phosphorus forms increased with sample particle size decreasing.
中文关键词	黄河中游 ; 沉积物 ; 无机磷 ; 形态 ; 粒度
英文关键词	the middle part of the Yellow River sediments inorganic phosphorus forms particle size
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:2644787
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219977
作者单位	内蒙古师范大学化学与环境科学学院, 呼和浩特, 内蒙古 010022, 中国
推荐引用方式 GB/T 7714	李北罡,郭博书. 黄河中游表层沉积物中无机磷的化学形态研究[J],2006,25(6):1607-1610.
APA	李北罡,&郭博书.(2006).黄河中游表层沉积物中无机磷的化学形态研究.,25(6),1607-1610.
MLA	李北罡,et al."黄河中游表层沉积物中无机磷的化学形态研究".25.6(2006):1607-1610.

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