稳定碳同位素技术在北京市公园湖泊沉积物有机质来源分析与评价中的应用

生态学杂志

稳定碳同位素技术在北京市公园湖泊沉积物有机质来源分析与评价中的应用

王春雨^1,2,郭庆军^1**,朱光旭^1,2,Marc Peters¹,杨俊兴¹,张晗芝^1,2,魏荣菲^1,2,田丽艳^1,2,万鹰昕³

(¹中国科学院地理科学与资源研究所环境修复与资源工程研究室，北京 100101； ^2中国科学院大学，北京 100049； ³北京联合大学，北京 100191)

出版日期:2014-03-10 发布日期:2014-03-10

Applying stable carbon isotope techniques to detect different sources of organic matters in lake sediments from Beijing parks.

WANG Chun-yu^1,2, GUO Qing-jun^1**, ZHU Guang-xu^1,2, PETERS Marc¹, YANG Jun-xing¹, ZHANG Han-zhi^1,2, WEI Rong-fei^1,2, TIAN Li-yan^1,2, WAN Ying-xin³

(¹ Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; ² University of Chinese Academy of Sciences, Beijing 100049, China; ³College of Applied Arts and Science, Beijing Union University, Beijing 100191, China)

Online:2014-03-10 Published:2014-03-10

摘要/Abstract

摘要：

湖泊是陆地水圈的重要组成部分，湖泊沉积物是水体污染物的源和汇，北京湖泊生态环境和环境质量评价越来越受关注。本研究对2012—2013年北京市19个公园湖泊表层沉积物中δ¹³C_org、C/N值及TOC、TON含量进行分析，探讨了湖泊生产力分布、湖泊营养输入、表层沉积物营养含量以及各沉积物有机质来源。结果表明，湖泊表层沉积物由于存在地域差异，δ¹³C_org、C/N、TOC、TON含量的差别较大、湖泊生产力与营养水平各不相同；通过有机指数评价法推断，所研究的湖泊中只有3个湖泊较清洁，其他均受到不同程度的有机污染；结合δ¹³C_org（-27.6‰～-22.1‰）和C/N（8.2～58.1）2个特征值对沉积物进行有机质来源的定性及半定量分析，推断出北京市公园湖泊有机质大多来源为污水有机质，应主要从控制污水输入方面降低湖泊污染风险。

关键词: 小麦条锈病, 气象等级预测, 盆地冬繁区

Abstract: Lake sediment can be a source as well as a sink of water pollutants and, hence, represents an important factor in lake ecology. Thus, more and more attention has been paid on the water quality of Beijing park lakes and the chemical characteristics of the sediments. This study detected variations in δ¹³C_org, C/N ratios, TOC and TN contents in the sediments from 19 Beijing park lakes collected in 2012 and 2013. The analyses focused on the sources of organic matter, the productivity and the eutrophic status of the lakes. The results showed that the δ¹³C_org and C/N values, and TOC and TON concentrations were significantly different among superficial sediments from different lakes, and the productivity and the eutrophic status of the lakes were also different. The sediments of three lakes showed minor contamination, whereas the other lakes were characterized by higher degrees of organic pollution. According to the δ¹³C_org values (-27.6‰ to -22.1‰) and C/N ratios (8.2-58.1), the sedimentary organic matter was mainly derived from sewage. Hence, the pollution of the lakes could be lowered by controlling the discharge of wastewater.

Key words:

wheat stripe rust, meteorological grade forecast, winter reproductive area in Sichuan Basin.

王春雨1,2,郭庆军1**,朱光旭1,2,Marc Peters1,杨俊兴1,张晗芝1,2,魏荣菲1,2,田丽艳1,2,万鹰昕3. 稳定碳同位素技术在北京市公园湖泊沉积物有机质来源分析与评价中的应用[J]. 生态学杂志.

WANG Chun-yu1,2, GUO Qing-jun1**, ZHU Guang-xu1,2, PETERS Marc1, YANG Jun-xing1, ZHANG Han-zhi1,2, WEI Rong-fei1,2, TIAN Li-yan1,2, WAN Ying-xin3. Applying stable carbon isotope techniques to detect different sources of organic matters in lake sediments from Beijing parks.[J]. cje.