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Ca Saturation Determines Crop Growth in Acidic Ultisols Derived from Different Parent Materials
期刊论文
EURASIAN SOIL SCIENCE, 2021, 卷号: 54, 期号: 8, 页码: 1215-1227
作者:
Zhou, Shiwei
;
Liang, Wenjun
;
Zeng, Tingting
;
Liu, Xiao
;
Meng, Ling
;
Bi, Xiaoli
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Adobe PDF(1218Kb)
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浏览/下载:735/295
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提交时间:2021/10/21
exchangeable Ca
Al ratio
Chinese cabbage
wheat
pot experiments
soil acidity
Source identification of chromium in the sediments of the Xiaoqing River and Laizhou Bay: A chromium stable isotope perspective
期刊论文
ENVIRONMENTAL POLLUTION, 2020, 卷号: 264, 页码: 114686
作者:
He, Xiaoqing
;
Chen, Guojun
;
Fang, Ziyao
;
Liang, Wenjian
;
Li, Boda
;
Qin, Liping
;
Chen, Guojun
;
Li, Boda
;
Tang, Jianhui
;
Sun, Yongge
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Adobe PDF(828Kb)
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浏览/下载:543/290
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提交时间:2021/12/01
Chromium contamination
Chromium isotopes
River sediments
The Xiaoqing River
Leaching experiments
The influences of phytohormones on triacylglycerol accumulation in an oleaginous marine diatom Phaeodactylum tricornutum
期刊论文
JOURNAL OF APPLIED PHYCOLOGY, 2019, 卷号: 31, 期号: 2, 页码: 1009-1019
作者:
Chu, JL
;
Li, Y
;
Cui, YL
;
Qin, S
Adobe PDF(1665Kb)
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浏览/下载:453/103
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提交时间:2020/07/08
Phaeodactylum tricornutum
Triacylglycerol
Phytohormones
Single-factor experiments
Response surface experiments
食用蔬菜能吸收和积累微塑料
期刊论文
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
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浏览/下载:536/0
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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.
Public Attitudes on Funding Oil Pollution Cleanup in the Chinese Bohai Sea
期刊论文
JOURNAL OF COASTAL RESEARCH, 2016, 页码: 207-213
作者:
Liu, X
;
Pan, GC
;
Wang, YB
;
Yu, X
;
Hu, XK
;
Zhang, H
;
Tang, C
;
Liu, X (reprint author), Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Prov Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China. Email:
[email protected]
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Adobe PDF(1920Kb)
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浏览/下载:801/388
  |  
提交时间:2016/11/30
Oil Spill
Contingency Management
Choice Experiments
Willingness To Pay
Coastal Resources
Managing coastal area resources by stated choice experiments
期刊论文
ESTUARINE COASTAL AND SHELF SCIENCE, 2010, 卷号: 86, 期号: 3, 页码: 512-517
作者:
Liu, Xin
;
Wirtz, Kai W.
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Adobe PDF(486Kb)
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浏览/下载:1205/345
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提交时间:2011/07/14
Oil Spill
Integrated Coastal Zone Management
Contingency Management
Stated Choice Experiments
Willingness To Pay
Coastal Resources
Content-based image retrieval using optimal feature combination and relevance feedback
会议论文
ICCASM 2010 - 2010 International Conference on Computer Application and System Modeling, Proceedings, 2010-10-22
Zhao,Lijun
;
Tang,Jiakui
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Adobe PDF(1394Kb)
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浏览/下载:1173/447
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提交时间:2011/07/22
Computer Applications
Content Based Retrieval
Experiments
Support Vector Machines
Willingness to pay among households to prevent coastal resources from polluting by oil spills: A pilot survey
期刊论文
MARINE POLLUTION BULLETIN, 2009, 卷号: 58, 期号: 10, 页码: 1514-1521
作者:
Liu, Xin
;
Wirtz, Kai W.
;
Kannen, Andreas
;
Kraft, Dietmar
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Adobe PDF(882Kb)
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浏览/下载:1589/590
  |  
提交时间:2011/07/05
Oil Spill
Contingency Management
Choice Experiments
Willingness To Pay
Coastal Resources
无权访问的条目
专著
作者:
Roger G. Petersen
Adobe PDF(27934Kb)
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浏览/下载:338/4
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提交时间:2014/12/26
Influence of temperature and pressure on maturation processes—I. Preliminary report
期刊论文
Organic Geochemistry, 1986, 卷号: 10, 期号: 40546, 页码: 331-337
Cs. Sajgó1
;
J. McEvoy2
;
G.A. Wolff3
;
* and Z.A. Horváth
Adobe PDF(583Kb)
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浏览/下载:363/0
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提交时间:2011/07/22
Pressurized Heating Experiments
Maturation
Vitrinite Reflectance
Hydrocarbon Generation
Configurational Isomerisation
Aromatisation
Hopanes
Hopenes
Sterenes
Steranes