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| 1 | Aging effect on the mobility and bioavailability of copper in soil显示文摘Aging effect on the mobility and bioavailability of copper(Cu) was investigated using a spiked soil with different incubation periods from 3 to 56 d.Wheat was planted and earthworms were cultured separately in the incubated soils.The mobility of Cu in soil was evaluated by a chemical fractionation scheme and the toxicity and bioavailability were assessed by measuring the biomass and Cu concentration in tissues.Results showed that aging had a significant effect on Cu fraction distribution,of which Cu tended to incorporate from the exchangeable into more stable fractions such as the reducible and oxidisable fractions.However,aging had little effect on Cu bioavailability to wheat and earthworm.Comparing the soil being incubated for 3 d and 56 d,Cu concentration in wheat roots decreased from 14.5 to 12.8 mg/kg,and no significant changes in Cu concentration were observed in both wheat shoots and earthworms.The Cu concentration was around 2.0 and 50 mg/kg for wheat shoots and earthworms,respectively,irrespective of soil incubation time.The CaCl2-extractable Cu had a linear relationship with Cu concentration in wheat roots(R2 = 0.65,P < 0.05),but no linear relationship can be found for wheat shoots and earthworms.Biological control may be more crucial for Cu accumulation in organism than the changes in soil Cu fraction caused by aging. | LU Anxiang ZHANG Shuzhen QIN Xiangyang WU Wenyong LIU Honglu | 2009 | Journal of Environmental Sciences2009，21，2： | 3 |
| 2 | Groundwater vulnerability assessment and feasibility mapping under reclaimed water irrigation by a modified DRASTIC model 显示文摘 | Wu Wenyong Yin Shiyang Liu Honglu | 2014 | Water Resources Management2014，28，： | 1 |
| 3 | Radiation, radiation dosimetry and biophysical models of space radiation effects显示文摘 | Cucinotta F A Wu Honglu Shavers M R | 2003 | Dosimetry and Biophysical models of space radiation effects Gravitational and Space Biology Bullutin2003，16，2： | 1 |
| 4 | A new model for head loss assessment of screen filters developed with dimen- sional analysis in drip irrigation systems 显示文摘 | Wenyong WU Wei CHEN Honglu LIU | 2014 | Irrigation and Drainage2014，，63： | 1 |
| 5 | ZnO纳米线负载Pd_1单原子催化剂催化若干反应性能的考察(英文)显示文摘将孤立的Pd原子分散到ZnO纳米线(NWs)上作为单原子催化剂(SACs),并考察了它们在若干反应中的催化性能.Pd_1/Zn O SAC对甲醇蒸汽重整制氢反应表现出高的活性、稳定性和CO_2选择性.该催化剂体系对CO和H_2的氧化也具有高活性,但在富氢物料中CO优先氧化反应中的催化剂性能较差,这主要是由于在Zn O负载的Pd_1原子上H_2氧化的强竞争反应所致.常压下在Pd_1/ZnO SAC上就可发生逆水汽变换反应.该系列催化反应测试结果清楚地表明,选择合适金属与载体对开发分子催化转化用单原子催化剂至关重要. | Jia Xu Yian Song Honglu Wu Jingyue Liu | 2017 | Chinese Journal of Catalysis2017，38，9： | 0 |
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