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1988—2015年马六甲海峡岸线时空变化特征分析 期刊论文
海洋科学, 2019, 卷号: 43, 期号: 08, 页码: 17-28
作者:  张玉新;  宋洋;  侯西勇
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海岸线变化  自然岸线  人工岸线  开发利用强度  马六甲海峡  港口  
海岸带环境中大塑料和微塑料的组成、鉴别及来源研究 ——以黄海桑沟湾为例 学位论文
工学硕士, 中国科学院烟台海岸带研究所: 中国科学院大学, 2019
作者:  赵新月
Adobe PDF(5314Kb)  |  收藏  |  浏览/下载:478/5  |  提交时间:2019/06/27
大塑料  微塑料  源清单  源识别  桑沟湾  
海藻及其生物基材料对典型环境内分泌干扰物的去除作用与影响机制研究 学位论文
工学博士, 中国科学院烟台海岸带研究所: 中国科学院大学, 2019
作者:  张翠
Adobe PDF(21125Kb)  |  收藏  |  浏览/下载:542/3  |  提交时间:2021/01/13
海藻  环境内分泌干扰物  生物地球化学行为  海藻凋萎物  藻基材料  
人工鱼礁研究现状及未来展望 期刊论文
海洋科学, 2019, 卷号: 43, 期号: 04, 页码: 81-87
作者:  李东;  侯西勇;  唐诚;  张华
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人工鱼礁  流场效应  监测管理  价值评估  可持续发展  
1982-2014年中国沿海地区归一化植被指数(NDVI)的变化及其对极端气候的响应 期刊论文
地理研究, 2019, 页码: 15
作者:  王晓利;  侯西勇
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NDVI  沿海地区  NDVI  时空变化  极端气温  极端降水  相关性  spatial- temporal dynamic  extreme temperature  extreme precipitation  correlation  coastal area  
曹妃甸围填海工程对近海环境的影响综述 期刊论文
海洋科学, 2019, 卷号: 43, 期号: 02, 页码: 82-90
作者:  李东;  侯西勇;  张华
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曹妃甸  围填海  近海环境  可持续发展  
微藻对高硫酸盐及重金属模拟废水的处理与机理研究 学位论文
工学博士, 中国科学院大学: 周浩媛, 2019
作者:  周浩媛
Adobe PDF(3189Kb)  |  收藏  |  浏览/下载:692/4  |  提交时间:2019/07/09
微藻  生物膜  硫酸盐  重金属  Rab反应器  
生物炭和黄腐酸对滨海滩涂盐碱地土壤性质的提升 期刊论文
中国农业科技导报, 2019, 卷号: 21, 期号: 8, 页码: 115-121
作者:  孙运朋;  杨劲松;  姚荣江;  陈小兵
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生物炭  黄腐酸  水稳性团聚体  滩涂围垦  Biochar  Fulvic Acid  Water Stable Aggregate  Tideland Reclamation  
1980~2017年环渤海海岸线和围填海时空演变及其影响机制 期刊论文
地理科学, 2019, 卷号: 39, 期号: 6, 页码: 997-1007
作者:  魏帆;  韩广轩;  韩美;  张金萍;  栗云召;  赵建民
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环渤海  围填海  海岸线  分形维数  动态监测  The Bohai Rim  Sea Reclamation  Shoreline  Fractal Dimension  Dynamic Monitoring  
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
收藏  |  浏览/下载:527/0  |  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.