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浏览/检索结果: 共28条，第1-10条 帮助

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Can the Soil Salinity be Retrieved Using GNSS Interferometric Reflectometry Data? 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2024, 卷号: 17, 页码: 10612-10620
作者:  Yang, Ting;  Wang, Jundong;  Sun, Zhigang
  |  收藏  |  浏览/下载：17/0  |  提交时间：2024/07/12
Anthropogenic activities change population heat exposure much more than natural factors and land use change: An analysis of 2020-2100 under SSP-RCP scenarios in Chinese cities 期刊论文  OAI收割
SUSTAINABLE CITIES AND SOCIETY, 2023, 卷号: 96, 页码: 11
作者:  He, Tong;  Wang, Nan;  Tong, Yindong;  Wu, Feng;  Xu, Xinliang
  |  收藏  |  浏览/下载：24/0  |  提交时间：2023/10/09
Spatiotemporal heterogeneity in associations of national population ageing with socioeconomic and environmental factors at the global scale 期刊论文  OAI收割
JOURNAL OF CLEANER PRODUCTION, 2022, 卷号: 373, 页码: 13
作者:  Wan, Qin;  Tang, Zhangying;  Pan, Jay;  Xie, Mingyu;  Wang, Shaobin
  |  收藏  |  浏览/下载：49/0  |  提交时间：2022/11/09
When one cannot bypass the byproducts: Plastic packaging waste embedded in production and export 期刊论文  OAI收割
JOURNAL OF INDUSTRIAL ECOLOGY, 2022, 页码: 15
作者:  Gao, Xiang;  Dall'erba, Sandy;  Ellison, Brenna;  Avelino, Andre F. T.;  Yang, Cuihong
  |  收藏  |  浏览/下载：21/0  |  提交时间：2023/02/07
Willingness of tobacco farmers to accept compensation for tobacco crop substitution in Lichuan City, China 期刊论文  OAI收割
TOBACCO CONTROL, 2021, 页码: 6
作者:  Wan, Xinyu;  Jin, Jianjun;  Ran, Shenghong
  |  收藏  |  浏览/下载：17/0  |  提交时间：2022/09/21
Willingness of tobacco farmers to accept compensation for tobacco crop substitution in Lichuan City, China 期刊论文  OAI收割
TOBACCO CONTROL, 2021, 页码: 6
作者:  Wan, Xinyu;  Jin, Jianjun;  Ran, Shenghong
  |  收藏  |  浏览/下载：18/0  |  提交时间：2022/09/21
Improved Global Maps of the Optimum Growth Temperature, Maximum Light Use Efficiency, and Gross Primary Production for Vegetation 期刊论文  OAI收割
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES, 2021, 卷号: 126, 期号: 4, 页码: e2020JG005651
作者:  Chen, Yongzhe;  Feng, Xiaoming;  Fu, Bojie;  Wu, Xutong;  Gao, Zhen
  |  收藏  |  浏览/下载：13/0  |  提交时间：2022/02/11
Mapping global impervious surface area and green space within urban environments 期刊论文  OAI收割
SCIENCE CHINA-EARTH SCIENCES, 2019, 卷号: 62, 期号: 10, 页码: 1591-1606
作者:  Kuang, Wenhui
  |  收藏  |  浏览/下载：45/0  |  提交时间：2020/05/19
Mapping global impervious surface area and green space within urban environments 期刊论文  OAI收割
SCIENCE CHINA-EARTH SCIENCES, 2019, 卷号: 62, 期号: 10, 页码: 1591-1606
作者:  Kuang, Wenhui
  |  收藏  |  浏览/下载：12/0  |  提交时间：2020/05/19
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：147/0  |  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.