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Chinese Academy of Sciences Institutional Repositories Grid
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生态环境研究中心 [3]
地理科学与资源研究所 [1]
新疆生态与地理研究所 [1]
水生生物研究所 [1]
地球化学研究所 [1]
烟台海岸带研究所 [1]
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OAI收割 [8]
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学位论文 [3]
期刊论文 [3]
SCI/SSCI论文 [1]
会议论文 [1]
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2019 [3]
2018 [1]
2016 [1]
2015 [1]
2013 [1]
2010 [1]
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Spectral insight into thiosulfate-induced mercury speciation transformation in a historically polluted soil
期刊论文
OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 卷号: 657, 期号: 1, 页码: 938-944
作者:
Liu, Ting
;
Wang, Jianxu
;
Feng, Xinbin
;
Zhang, Hua
;
Zhu, Zongqiang
  |  
收藏
  |  
浏览/下载:293/0
  |  
提交时间:2019/07/01
Thiosulfate
Mercury fractionation
Bioavailability
Environment risk management
Spectral insight into thiosulfate-induced mercury speciation transformation in a historically polluted soil
期刊论文
OAI收割
Science of The Total Environment, 2019, 卷号: 657, 页码: 938-944
作者:
Ting Liu
;
Jianxu Wang
;
Xinbin Feng
;
Hua Zhang
;
Zongqiang Zhu
;
Shenggao Cheng
  |  
收藏
  |  
浏览/下载:102/0
  |  
提交时间:2020/05/12
Thiosulfate
mercury Fractionation
bioavailability
environment Risk Management
食用蔬菜能吸收和积累微塑料
期刊论文
OAI收割
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者:
李连祯
;
周倩
;
尹娜
;
涂晨
;
骆永明
  |  
收藏
  |  
浏览/下载:144/0
  |  
提交时间:2020/06/17
微塑料
生菜
聚苯乙烯微球
吸收
积累
健康风险
microplastics
lettuce
polystyrene microbeads
uptake
accumulation
human health risk
Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.
基于生态风险管控的污水库治理 技术体系与管理对策研究 —— 以雄安唐河污水库为例
学位论文
OAI收割
北京: 中国科学院生态环境研究中心, 2018
作者:
马铭锋
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收藏
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浏览/下载:22/0
  |  
提交时间:2020/07/24
生态风险
风险管控
污水库
环境 管理
雄安唐河
Ecological Risk, Risk Control, Sewage Reservoir, Environment Management, Xiongan Tang River
松花江流域沿岸土地利用变化与水环境风险管理研究
学位论文
OAI收割
博士, 北京: 中国科学院研究生院, 2016
作者:
谭立波
收藏
  |  
浏览/下载:42/0
  |  
提交时间:2017/07/18
沿岸土地利用,水环境,生态威胁,风险管理,松花江流域
riverside land use, water environment, ecological threat, risk management, Songhua River Basin
The management in response to marine oil spill from ships in China: A systematic review
SCI/SSCI论文
OAI收割
2015
作者:
Xiong S. G.
;
Long, H. L.
;
Tang, G. P.
;
Wan, J.
;
Li, H. Y.
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2015/12/09
Equipment stockpiles
Emergency response plan
Crew quality
Capability
building
Coastal environmental management
Sustainable coastal
development
risk
impact
sea
environment
accident
strait
damage
区域大气颗粒物环境风险模拟、评估与管理研究——以秦皇岛港区域为例
学位论文
OAI收割
博士, 北京: 中国科学院研究生院, 2013
张晓春
收藏
  |  
浏览/下载:86/0
  |  
提交时间:2014/10/28
区域环境 大气颗粒物 数学模拟 环境风险 环境管理
regional environment
atmospheric particulate matter
mathematical modeling
environment risk
environment management
R&D of comprehensive evaluation system of ecological environment in Tarim River basin
会议论文
OAI收割
2010 International Conference on Management and Service Science, MASS, Wuhan, China, 2010
Bao
;
An-Ming1
;
2
;
Liu
;
Hai-Long3
;
Chen
;
Yun-Hao1
;
Xi2
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2011/08/23
Arid regions - Degradation - Ecology - Information systems - Management science - Monitoring - Risk analysis - Risk assessment - Rivers - Vegetation - Watersheds - Analysis and evaluation - Arid area - Comprehensive evaluation system - Current situation - Degradation index - Density index - Ecological environments - Ecological risk assessment - Ecological risks - Ecological water demand - Environment quality - Environmental information systems - Evaluation system - Land degradation - Landscape ecology - Natural vegetation - Phreatic - Pollution loads - Professional analysis - Research and development - Restoration index - Risk indices - System building - System functions - Tarim River basin - Theoretical study - Vegetation coverage - Water regulation