中国科学院机构知识库网格系统: 检索

Uptake time and enrichment mechanism of rare earth elements in deep-sea bioapatite 期刊论文 OAI收割
CHEMICAL GEOLOGY, 2024, 卷号: 669, 页码: 10
作者: Xu, Yonghang; Li, Dongyi; Yang, Yang Alexandra; Chen, Jian; Zhao, Siyu

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收藏 | 浏览/下载：11/0 | 提交时间：2025/04/01

Rare earth elements and yttrium Bioapatite Uptake time Enrichment mechanism Northwestern Pacific and northwestern Indian Ocean

Plant phenology changes and drivers on the Qinghai-Tibetan Plateau 期刊论文 OAI收割
Nature Reviews Earth & Environment, 2022, 卷号: 3, 期号: 10, 页码: 633-651
作者: Miaogen Shen; Shiping Wang; Nan Jiang; Jianping Sun; Ruyin Cao

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收藏 | 浏览/下载：41/0 | 提交时间：2022/10/25

Vegetation Green-up Land-surface Phenology Delayed Spring Phenology Time-series Data Climate-change Nitrogen Addition Autumn Phenology Carbon Uptake Reproductive Phenology Altitudinal Gradient

Asymmetric response of soil methane uptake rate to land degradation and restoration: Data synthesis 期刊论文 OAI收割
GLOBAL CHANGE BIOLOGY, 2020, 页码: 13
作者: Wu, Junjun; Chen, Qiong; Jia, Wei; Long, Chunyan; Liu, Wenzhi

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收藏 | 浏览/下载：31/0 | 提交时间：2020/10/04

afforestation deforestation methane uptake soil microenvironment time since land use change upland soils

Concurrent and Lagged Effects of Extreme Drought Induce Net Reduction in Vegetation Carbon Uptake on Tibetan Plateau 期刊论文 OAI收割
REMOTE SENSING, 2020, 卷号: 12, 期号: 15, 页码: 19
作者: Ye, Chongchong; Sun, Jian; Liu, Miao; Xiong, Junnan; Zong, Ning

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收藏 | 浏览/下载：17/0 | 提交时间：2021/03/18

extreme drought net reduction in vegetation carbon uptake concurrent and lagged effects recovery time

Concurrent and Lagged Effects of Extreme Drought Induce Net Reduction in Vegetation Carbon Uptake on Tibetan Plateau 期刊论文 OAI收割
REMOTE SENSING, 2020, 卷号: 12, 期号: 15, 页码: 19
作者: Ye, Chongchong; Sun, Jian; Liu, Miao; Xiong, Junnan; Zong, Ning

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收藏 | 浏览/下载：18/0 | 提交时间：2021/03/18

extreme drought net reduction in vegetation carbon uptake concurrent and lagged effects recovery time

Bioavailability of dissolved organic nitrogen and its uptake by Ulva prolifera: Implications in the outbreak of a green bloom off the coast of Qingdao, China 期刊论文 OAI收割
MARINE POLLUTION BULLETIN, 2019, 卷号: 140, 页码: 563, 572
作者: Cui, Zheng-guo; Xiu, Bin; Liang, Sheng-kang; He, Xing-liang; Wang, Xin-ke

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收藏 | 浏览/下载：107/0 | 提交时间：2019/09/09

Dissolved organic nitrogen Uhler prolifera Bioavailability Stable isotopes Uptake rate Turnover time

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

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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.

An improved high spatial and temporal data fusion approach for combining Landsat and MODIS data to generate daily synthetic Landsat imagery 期刊论文 OAI收割
Information Fusion, 2016, 卷号: 31, 页码: 14-25
作者: Wu, Mingquan; Wu, Chaoyang; Huang, Wenjiang; Niu, Zheng; Wang, Changyao

收藏 | 浏览/下载：31/0 | 提交时间：2017/04/24

TIME-SERIES DATA VEGETATION PHENOLOGY DECIDUOUS FOREST SPRING PHENOLOGY NORTH-AMERICA CARBON UPTAKE INTERANNUAL VARIABILITY TIBETAN PLATEAU COVER CHANGE NDVI DATA

A Series RCL Circuit Theory for Analyzing Non-Steady-State Water Uptake of Maize Plants SCI/SSCI论文 OAI收割
2014
Zhuang J.; Yu G. R.; Nakayama K.

收藏 | 浏览/下载：31/0 | 提交时间：2014/12/24

root water stomatal conductance soil-water hydraulic architecture atmosphere continuum seasonal-changes nutrient-uptake dynamic-model time-series sap flow

Substantial amounts of carbon are sequestered during dry periods in an old-growth subtropical forest in South China SCI/SSCI论文 OAI收割
2013
Yan J. H.; Liu X. Z.; Tang X. L.; Yu G. R.; Zhang L. M.; Chen Q. Q.; Li K.

收藏 | 浏览/下载：47/0 | 提交时间：2014/12/24

Gross primary productivity Net ecosystem productivity Old-growth forest Respiration Temporal pattern net ecosystem exchange interannual climate variability tropical rain-forest hydraulic redistribution environmental controls deciduous forest co2 exchange water-uptake time scales term