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海洋牧场多水层溶解氧在线监测系统的构建及应用 期刊论文
海洋环境科学, 2020, 卷号: 39, 期号: 6, 页码: 909-917
作者:  付龙文;  杜志强;  高歌;  孙西艳;  陈令新
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marine ranching  multi-water layer  dissolved oxygen  online monitoring system  海洋牧场  多水层  溶解氧  在线监测系统  
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：495/0  |  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.  
多层纤维球生物滤池净化工厂化养殖循环水处理 期刊论文
河海大学学报. 自然科学版, 2019, 卷号: 47, 期号: 4, 页码: 304-309
作者:  吕剑;  于晓斌;  张宇轩;  武君
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工厂化循环水养殖  多层纤维球滤料  生物滤池  污染物去除效果  多级复氧  同步硝化和反硝化  Recirculating Aquaculture System  Multi-layer Fiber Ball Filter  Biological Filter  Effect Of Biological Removal  Multi-level Reaeration  Simultaneous Nitrification And deNitrification  
考虑湿地精细分类的全球海岸带土地利用/覆盖遥感分类系统 期刊论文
热带地理, 2018, 卷号: 38, 期号: 06, 页码: 866-873
作者:  侯婉;  侯西勇
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海岸带  土地利用/覆盖  湿地分类  遥感  分类系统  全球  coastal zone  land use and land cover  wetland classification  remote sensing  classification system  globally  
海水淡化膜集成系统的发展现状及优势分析 期刊论文
膜科学与技术, 2017, 卷号: 37, 期号: 6, 页码: 129-135
作者:  周宗尧;  胡云霞;  刘中云;  Edo Bar Zeev
收藏  |  浏览/下载：195/0  |  提交时间：2020/07/07
reverse osmosis  forward osmosis  pressure retarded osmosis  seawater pretreatment  power generation  desalination  integrated membrane system  反渗透  正渗透  压力延迟渗透  膜法预处理  盐差发电  海水淡化  膜集成系统  
山东半岛北部海洋动力环境的高频地波雷达观测 期刊论文
海洋科学, 2017, 卷号: 41, 期号: 5, 页码: 85-92
作者:  唐诚;  郑向阳;  李艳芳;  刘欣;  张华
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high frequency ground wave radar  the Northern Shandong Peninsula coast  ocean dynamic environment  coupledocean- atmosphere-wave-sediment transport modeling system(COAWST)  地波雷达(ground wave radar, WERA)  山东半岛北部  海洋动力环境  海洋-大气-波浪耦合沉积输运模型(coupled-ocean-atmosphere-wave-sediment transport modeling system, COAWST)