[1]高进长,龙翼,张信宝,等.长寿湖水库沉积物有机碳的垂直变化特征[J].水土保持研究,2016,23(05):80-84.
　GAO Jinchang,LONG Yi,ZHANG Xinbao,et al.Characteristics of Vertical Variation of Organic Carbon in the Sediment of Changshouhu Reservoir, China[J].Research of Soil and Water Conservation,2016,23(05):80-84.
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长寿湖水库沉积物有机碳的垂直变化特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年05期 页码: 80-84 栏目: 出版日期: 2016-10-28
Title:
Characteristics of Vertical Variation of Organic Carbon in the Sediment of Changshouhu Reservoir, China
作者:
高进长1,2, 龙翼1, 张信宝1, 贺秀斌1, 王铭烽1,2
1. 中国科学院 水利部 成都山地灾害与环境研究所 山地表生过程与生态调控重点实验室, 成都 610041;
2. 中国科学院大学, 北京 100049
Author(s):
GAO Jinchang1,2, LONG Yi1, ZHANG Xinbao1, HE Xiubin1, WANG Mingfeng1,2
1. Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Ministry of Water Resources, Chengdu 610041, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
沉积物; 有机碳; 垂直变化; 长寿湖水库
Keywords:
sedimentation; organic carbon; vertical variation; Changshouhu Reservoir
分类号:
X524;S153.6+2
摘要:
为揭示长寿湖水库沉积物有机碳的垂直变化特征，采用重力采样器采集水库沉积泥沙，测定了沉积物样品的容重、颗粒组成、总有机碳（TOC）等。结果表明：自1956年水库建成后，长寿湖水库采样点沉积物的厚度为92 cm，年均沉积深度为1.59 cm。沉积物颗粒粒径随深度减小呈现出先变细，再变粗，表层变细的变化趋势。沉积物中TOC平均含量为14.14 g/kg，从建库开始，采样点沉积物中TOC的含量变化趋势是先减小；随着人类活动的加剧导致土地利用发生较大变化，如退耕还林、城市化进程加快等，特别是水面上肥水网箱养鱼等活动，使沉积物中TOC含量逐渐增加；在2004年长寿湖水库全面禁止肥水养鱼后，TOC含量逐渐减小。研究长寿湖水库沉积物有机碳的垂直变化，对认识水库沉积物物理性质、沉积历史及沉积物与人类活动的关系有重要的意义。
Abstract:
To examine the characteristics of vertical variation for organic carbon in the sediment of Changshouhu Reservoir, deposit sediment was collected by using gravity sampler and bulk density, particle sizes and total organic carbon (TOC) were measured. Since the completion of the Changshouhu Reservoir in 1956, the siltation sediment thickness was 92 cm and the annual average sediment depth was 1.59 cm in the sediment deposit of Changshouhu Reservoir. The particle sizes were thinner gradually in the sediment, and increasingly coarser then thinner in the surface. The measured mean content of TOC was 14.14 g/kg in the sampling site. Since 1956, the trend of the content of TOC decreased, and gradually increased from the late 1980s for the change of land-use such as returning farmland to forest and urbanization in the Longxi catchment and especially the cages fish farming and fertilizer fish farming in the Chagnshouhu reservoir, and decreased gradually in 2004 when the ban for fertilizer framing fish was initiated. In addition, the present results would be helpful for studying the history of sediment and future controlling eutrophication in the Changshouhu Reservoir.

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备注/Memo

收稿日期:2015-10-08;改回日期:2015-10-21。
基金项目:中国科学院西部行动计划（KZCX2-XB3-09）；国家科技支撑计划（2011BAD31B03）；国家自然科学基金（41101259，41201275）
作者简介:高进长(1984-),男,河南安阳人,博士,研究方向为土壤侵蚀与水土保持。E-mail:jzhgao@imde.ac.cn
通讯作者:龙翼(1976-),男,湖北黄冈人,副研究员,主要从事土壤侵蚀与水土保持研究。E-mail:longyi@imde.ac.cn

更新日期/Last Update: 1900-01-01