Vertical Distribution Characteristics of Phosphorus Fractions in the Sediments from Aobao in Lianhuan Lake

CAO Weiwei1; XIAO Haifeng1; ZANG Shuying2

doi:10.13870/j.cnki.stbcxb.2017.02.046

您当前的位置：

首页 >

文章列表页 >

Vertical Distribution Characteristics of Phosphorus Fractions in the Sediments from Aobao in Lianhuan Lake

更新时间：2024-11-07

- Vertical Distribution Characteristics of Phosphorus Fractions in the Sediments from Aobao in Lianhuan Lake
- Vol. 31, Issue 2, Pages: 279-286(2017)
- 作者机构：
  
  1. 哈尔滨师范大学地理科学学院,哈尔滨,150025
  2. 哈尔滨师范大学，黑龙江省普通高等学校地理环境遥感监测重点实验室,哈尔滨,150025
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2017.02.046
  CLC： X524
- Published：2017
- 稿件说明：
移动端阅览
CAO Weiwei1, XIAO Haifeng1, ZANG Shuying2. Vertical Distribution Characteristics of Phosphorus Fractions in the Sediments from Aobao in Lianhuan Lake[J]. 2017, 31(2): 279-286.
DOI：

CAO Weiwei1, XIAO Haifeng1, ZANG Shuying2. Vertical Distribution Characteristics of Phosphorus Fractions in the Sediments from Aobao in Lianhuan Lake[J]. 2017, 31(2): 279-286. DOI： 10.13870/j.cnki.stbcxb.2017.02.046.

摘要

应用SMT连续提取法对连环湖敖包泡北部（AB1）和南部（AB2）柱状沉积岩芯中磷形态的含量和垂向分布特征进行对比分析，结合沉积岩芯年代测定，探讨了该湖区沉积物中磷的演化特征与人为污染历史以及内源磷的释放风险。结果表明，AB1、AB2沉积物中磷形态的含量和垂向变化不同，AB1沉积物中各形态磷含量均高于AB2，且随深度变化波动较大。20世纪40年代中期至1981年，AB1沉积物各形态磷和OM含量波动较大；AB2沉积物中Ca-P、IP、TP含量呈先增加后减少之势，Fe/Al-P、OP、OM含量变化较稳定。1981—2009年，AB1沉积物Ca-P、IP、OM含量变化较小，Fe/Al-P、OP、TP含量相对波动较大；AB2沉积物Ca-P、Fe/Al-P、TP含量不同程度上先增加后减少，IP、OP、OM含量变化均呈增加趋势。连环湖敖包泡沉积物磷人为来源以工业废水、居民生活污水和农药化肥的流失为主。湖泊北部磷含量高于南部，这与人类活动强度密切相关，敖包泡北部附近村落密集而南部没有村落。应用单一因子标准指数法对湖泊表层沉积物磷素进行生态风险评价表明，湖区北部表层沉积物总磷含量超标，存在一定的安全风险，同时AB1沉积物上部较底部活性磷（Fe/Al-P和OP）增加较多、且活性磷（Fe/Al-P和OP）是AB1沉积物磷增加的主要形态，因此连环湖敖包泡沉积物中磷向上覆水体释放的风险增加，对湖泊水体的富营养化的影响应予以关注。

Abstract

The contents and vertical distribution of phosphorus fractions were analysed comparatively for core sediment samples taken from north sampling site for Core AB1 and south sampling site for Core AB2 of Aobao Lake in Lianhuan Lake using the SMT sequential extraction method. With the dating approach

the evolution characteristics and polluted history of phosphorus and the risk of phosphorus release in lake sediments were discussed. The results showed that the contents and vertical distribution of phosphorus fractions in Core AB1 and Core AB2 varied and the contents of phosphorus fractions in Core AB1 were higher than those in Core AB2

with fluctuations significantly with the depth. During the mid—1940s and 1981

the contents of phosphorus fractions and OM in Core AB1 showed large fluctuations; the contents of Ca-P

and TP in Core AB2 first increased and then decreased

while the contents of Fe/Al-P

and OM relatively constant. During 1981 to 2009

the contents of Ca-P

and OM changed less and the contents of Fe/Al-P

and TP showed relatively large fluctuation in Core AB1; the contents of Ca-P

Fe/Al-P

and TP first increased and then decreased to different degrees and the contents of IP

and OM tended to increase in Core AB2. The sources of phosphorus in core sediments of Aobao Lake were mainly from industrial wastewater

sewage

and the loss of pesticides and fertilizers. The content of phosphorus in the north of lake was higher than that in the south

which was closely related with human activity. There were several villages in the northern part of Aobao Lake but none in the southern part. By using single single factor standard index method

the assessment of ecological risk of phosphorus in surface sediments showed that the content of total phosphorus in the northern part of lake exceeded the standard and showed a certain safety risk. Meanwhile

active phosphorus (Fe/Al-P and OP) in the upper part of sediment showed a greater increase than that at the bottom of Core AB1

and active phosphorus (Fe/Al-P and OP) were the dominant fractions of the increasing phosphorus sedimentation in Core AB1. It was indicated that phosphorus in the sediment in Aobao Lake would release more easily to the overlying water

and the effect on the eutrophication of lake water should be given attention.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Phosphorus Fractions and Temporal-Spatial Distribution Characteristics in Sediments from Rongcheng Swan Lake

Research on Influence of Ditch Sediments Purifying Nitrogen from Water under Drying and Wetting Conditions

Source Analysis and Pollution Evaluation of Carbon, Nitrogen and Phosphorus in River Sediments of the Weihe River in Shaanxi Province

Soil Nutrient Status and Sediment Pollution Characteristics of Linfen Wetland Park After Rehabilitation

Related Author

SONG Peng-peng

HOU Jin-zhi

GAO Li

ShI Yan-Xi

ZHANG Yan

YAN Bai-xing

HE Qilin

ZHANG Fengbao

Related Institution

SONG Peng-peng1,HOU Jin-zhi1,GAO Li1,SHI Yan-xi2(1.Ocean School,Yantai University,Yantai,Shandong 264005,2.College of Resource and Environment,Qingdao Agricultural University,,)

ZHANG Yan1,2,YAN Bai-xing1(1.Key Laboratory of Wetland Ecology and Environment,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Changchun 130012,2.Graduate University of Chinese Academy of Sciences,)

中国科学院研究生院,北京1000492. 中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室

State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling

University of Chinese Academy of Sciences

⁰