干旱区生态环境知识资源中心(Arid): 呼伦湖沉积物有机碳的分布特征

Arid

	呼伦湖沉积物有机碳的分布特征
其他题名	Characteristics of Organic Carbon Distribution in the Sediment of Hulunhu Lake, China
	宋文杰 1; 何江 1; 高际玫 2; 吕昌伟 1; 王维 1; 张家震 1
来源期刊	农业环境科学学报
ISSN	1672-2043
出版年	2011
卷号	30 期号:11 页码:2336-2340
中文摘要	以内蒙古高原湖泊呼伦湖为对象，开展了湖泊沉积物有机碳的分布特征研究。结果表明:呼伦湖沉积物中总有机碳(TOC)含量范围为9.18~61.68g·kg~(-1)，平均34.64g·kg~(-1);重组碳(HFOC)含量范围为9.02~61.47g·kg~(-1)，平均34.32g·kg~(-1);轻组碳(LFOC)含量范围为0.02~0.86g·kg~(-1)，平均0.32g·kg~(-1)。TOC在空间分布上呈现从北西向南东逐渐递减的趋势。表层沉积物中C/N的平均值为20.35，表明呼伦湖中有机质的多源性。
英文摘要	The total organic carbon(TOC) plays an important role in carbon cycles. TOC can be divided into light-fraction organic carbon(LFOC) and heavy-fraction organic carbon(HFOC) using the density fraetionation technique recently, LFOC consists of visible partly decomposed plant material at various stage of decomposition, includes spore, seed, animal and microbial debris and some soil minerals particle associated with plant debris. It is a good indicator for labile organic carbon. And HFOC consists of humus, existing as stable carbon pool. This study was carried out about the characteristics organic carbon distributions in the sediment of Hulunhu lake, which is the shallow lake in arid areas within the Mongolian Plateau. The results indicated that the content of TOC ranged from 9.18 to 61.68 g·kg~(-1), with the average of 34.64 g·kg~(-1); the content of HFOC ranged from 9.02 to 61.47 g·kg~(-1), with the average of 34.32 g·kg~(-1); and the content of LFOC ranged from 0.02 to 0.86 g·kg~(-1), with the average of 0.32 g·kg~(-1). The content of TOC showed a decreasing trend from northwest to southeast in spatial distribution. The mean C/N ratio of the sediment was 20.35 in the surface sediments of Hulunhu lake, Which meant that the source of organic matter was diverse.
中文关键词	有机碳 ; 分布 ; 沉积物 ; 湖泊
英文关键词	organic carbon:distributions sediment lake
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:4387695
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226818
作者单位	1.内蒙古大学环境与资源学院, 呼和浩特, 内蒙古 010021, 中国; 2.内蒙古环境监测中心站, 呼和浩特, 内蒙古 010011, 中国
推荐引用方式 GB/T 7714	宋文杰,何江,高际玫,等. 呼伦湖沉积物有机碳的分布特征[J],2011,30(11):2336-2340.
APA	宋文杰,何江,高际玫,吕昌伟,王维,&张家震.(2011).呼伦湖沉积物有机碳的分布特征.农业环境科学学报,30(11),2336-2340.
MLA	宋文杰,et al."呼伦湖沉积物有机碳的分布特征".农业环境科学学报 30.11(2011):2336-2340.