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| 1 | Quantifying the adsorption and uptake of CuO nanoparticles by wheat root based on chemical extractions显示文摘Extensive application of metal nanoparticles is attracting more attention because of their potential environmental risks.Many studies have focused on the uptake of metal nanoparticles (NPs) by plant,but the adsorption of nanoparticles on root surface is often mistakenly regarded as their uptake.This study optimized the methods to distinguish the adsorption and uptake of CuO-NPs on the wheat root by applying different metal competing ions (Na +,Mg 2+,and La 3+ ),surfactant (i.e.,sodium dodecyl benzene sulfonate,SDBS),or complexing agents like NaOAc and Na 4 EDTA,as well as ultrasonic technique.The results indicated that some CuO-NPs is strongly adsorbed on the plant root surface,and part of them by mechanical adhesion.Competing ions could not desorb the CuO-NPs from the root surface,while NaOAc and Na 4 EDTA well dissolved the adsorbed CuO-NPs.In addition,the uptake and adsorption of CuO-NPs increased with increasing exposure concentrations of CuO-NPs in the range of 5-200 mg/L.The amount of CuO-NPs adsorption is always lower than that of their uptake. | Dongmei Zhou Shengyang Jin Lianzhen Li Yu Wang Nanyan Weng | 2011 | Journal of Environmental Sciences2011，23，11： | 3 |
| 2 | Subcellular Cd distribution and its correlation with antioxidant enzymatic activities in wheat ( Triticum aestivum ) roots显示文摘 | Li Dandan Zhou Dongmei Wang Peng Weng Nanyan Zhu Xiangdong | 2010 | Ecotoxicology and Environmental Safety2010，，4： | 1 |
| 3 | What drives the change of nitrogen and phosphorus loads in the Yellow River Basin during 2006-2017?显示文摘The Yellow River Basin (YRB) plays a very important role in China’s economic and social development and ecological security.In particular,the ecosystem of the YRB is sensitive to climate change.However,the change of nutrient fluxes in this region during the past years and its main driving forces remain unclear.In this study,a hydrologic model R System for Spatially Referenced Regressions on Watershed Attributes (RSPARROW) was employed to simulate the spatio-temporal variations in the fluxes of total nitrogen (TN) and total phosphorus (TP) during the period of 2006-2017.The results suggested that the TN and TP loads increased by 138%and 38%during 2006-2014,respectively,and decreased by 66%and 71%from 2015 to 2017,respectively.During the period of 2006-2017,the annual mean fluxes of TN and TP in the YRB were in the range of 3.9 to 591.6 kg/km^(2)/year and 1.7 to 12.0 kg/km^(2)/year,respectively.TN flux was low in the upstream area of the Yellow River,and presented a high level in the middle and lower reaches.However,the flux of TP in Gansu and Ningxia section was slightly higher than that in the lower reaches of the Yellow River.Precipitation and point source are the key drivers for the inter-annual changes of TN loads in most regions of the YRB.While the inter-annual variations of TP loads in the whole basin are mainly driven by the point source.This study demonstrates the important impacts of climate change on nutrient loads in the YRB.Moreover,management measures should be taken to reduce pollution sources and thus provide solid basis for control of nitrogen and phosphorus in the YRB. | Jiaqi Zheng Xianghui Cao Chunzi Ma Nanyan Weng Shouliang Huo | 2023 | Journal of Environmental Sciences2023，，4： | 1 |
| 4 | Evaluating mechanisms for plant-ion (Ca2+, Cu2+, Cd2+ or Ni2+) interactions and their effectiveness on rhizotoxicity显示文摘 | Peng Wang Dong-Mei Zhou Willie J. G. M. Peijnenburg Lian-Zhen Li Nanyan Weng | 2010 | Plant and Soil (-)2010，，1： | 1 |
| 5 | Subcellular Cd distribution and its correlation with antioxidant enzymatic activities in wheat ( Triticum aestivum ) roots显示文摘 | Li Dandan Zhou Dongmei Wang Peng Weng Nanyan Zhu Xiangdong | 2010 | Ecotoxicology and Environmental Safety2010，，4： | 1 |
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