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| 1 | Arsenic mitigates cadmium toxicity in rice seedlings显示文摘 | Yonghong Sun Zhaojun Li Bin Guo Guixin Chu Changzhou Wei Yongchao Liang | 2008 | Environmental and Experimental Botany2008，，3： | 2 |
| 2 | Soil microbial activity and community structure as affected by exposure to chloride and chloride-sulfate salts显示文摘Mixed or chloride salty ions dominate in saline soils, and exert wide-ranging adversely affect on soil biological processes and soil functions. The objectives of this study were to(1) explore the impacts of mixed(0, 3, 6, 10, 20 and 40 g Cl~–/SO_4^(2–)salt/kg dry soil) and chloride(0, 1.5, 3, 5, 8 and 15 g Cl~– salt/kg dry soil) salts on soil enzyme activities, soil physiological functional(Biolog) profiles and microbial community structure by using soil enzymatic, Biolog-Eco microplates as well as denaturing gradient gel electrophoresis(DEEG) methods, and(2) determine the threshold concentration of soil electronic conductivity(EC_(1:5)) on maintaining the functional and structural diversity of soil microbial community. The addition of either Cl~– or mixed Cl~–/SO_4^(2–)salt obviously increased soil EC, but adversely affected soil biological activities including soil invertase activity, soil microbial biomass carbon(MBC) and substrate-induced respiration(SIR). Cl~– salt showed a greater deleterious influence than mixed Cl~–/SO_4^(2–)salt on soil enzymes and MBC, e.g., the higher soil MBC consistently appeared with Cl~–/SO_4^(2–)instead of Cl– treated soil. Meanwhile, we found that SIR was more reliable than soil basal respiration(SBR) on explaining the changes of soil biological activity responsive to salt disturbance. In addition, microbial community structures of the soil bacteria, fungi, and Bacillus were obviously affected by both salt types and soil EC levels, and its diversity increased with increasing of mixed Cl~–/SO_4^(2–)salt rates, and then sharply declined down after it reached critical point. Moreover, the diversity of fungal community was more sensitive to the mixed salt addition than other groups. The response of soil physiological profiles(Biolog) followed a dose-response pattern with Cl~–(R^2=0.83) or mixed Cl~–/SO_4^(2–)(R^2=0.89) salt. The critical threshold concentrations of salts for soil physiological function were 0.45 d S/m for Cl~– and 1.26 d S/m for Cl~–/SO_4^(2–), and those for soil microbial community structural diversity were 0.70 d S/m for Cl~– and 1.75 d S/m for Cl~–/SO_4^(2–). | ZHANG Qianqian Steven A WAKELIN LIANG Yongchao CHU Guixin | 2018 | Journal of Arid Land2018，10，5： | 2 |
| 3 | Role of silicon in enhancing resistance to freezing stress in two contrasting winter wheat cultivars显示文摘 | Yongchao Liang Jia Zhu Zhaojun Li Guixin Chu Yanfang Ding Jie Zhang Wanchun Sun | 2008 | Environmental and Experimental Botany2008，，3： | 1 |
| 4 | Effects of Magnetic Water Irrigation on the Growth, N Uptake and Antioxidant Enzyme Activities of Cotton Seedlings显示文摘A hydroponic experiment was carried out to investigate the effects of magnetic water irrigation on the growth, nutritionalstatus and antioxidant enzyme activity of cotton seedlings. Four levels of magnetic-treated water irrigation (0, 100, 300 and 500 mT)and three levels of salt stress (0, 100 and 200 mM NaCI) were applied. Salt stress adversely affected the dry weight, nutrient uptakeand antioxidant enzyme activities of cotton seedlings. Magnetic-treated water irrigation significantly increased cotton seedling dryweight. Cotton seedling dry weight increased by 14%, 22% and 29% under the treatments of 100, 300 and 500 mT magnetic waterirrigation, respectively, compared with the control, at a salt stress level of 100 mM NaC1. Moreover, magnetic water irrigationimproved N uptake, but did not significantly affect P and K uptake. Magnetic water irrigation significantly increased the activity ofsuperoxide dismutase (SOD), peroxidase (POD) and the proline content compared to the control (0 roT). Irrigation with magneticwater could be a promising technique in agriculture, especially under salt stress conditions. A suitable magnetic intensity of 300 mTis recommended. | Yanju Gao Yanfei Sun Ruixi Zhang Guixin Chu | 2017 | Journal of Agricultural Science and Technology(B)2017，7，1： | 1 |
| 5 | Structuraland functional response of soil microbiota to addition ofplant substrate are moderated by soil Cu levels显示文摘 | Steven A W Chu Guixin Broos K | 2010 | Biol-ogy and Fertility of Soils2010，46，4： | 1 |
| 6 | Role of silicon in enhancing resistance to freezing stress in two contrasting winter wheat cultivars显示文摘 | Yongchao Liang Jia Zhu Zhaojun Li Guixin Chu Yanfang Ding Jie Zhang Wanchun Sun | 2008 | Environmental and Experimental Botany2008，，3： | 1 |
| 7 | Sulfur-induced dynamic reconstruction of iron-nitrogen species for highly active neutral oxygen reduction reactions显示文摘The neutral oxygen reduction reaction(ORR)has attracted tremendous attention for its broad prospects in next-generation power storage systems.However,the extremely sluggish cathodic reaction process and the limited cognition of the reaction mechanism greatly hinder its practical application.Here,we demonstrate a dynamic reconstruction behavior induced by sulfur of the iron-nitrogen(Fe-Nx)species in neutral solution.Our developed FeS_(1)N_(3)-OH configuration effectively optimizes the reaction kinetics by regulating the adsorption energy of oxygen intermediates for central catalytic sites.Consequently,this structure exhibits over 363%enhancement in ORR mass activity compared to the pristine FeN_(4) sites under neutral electrolyte.Moreover,a neutral zinc-air battery assembled with this electrocatalyst reached an ultrahigh peak power density(81.2 mW cm^(−2)),robust stability(more than 100 h)as well as superior tolerance to extreme environments(operating between−20°C and 60°C),representing a critical breakthrough for neutral ORR exploration and application. | Wenjie Wang Tianpei Zhou Kai Zhang Chun Wang Xiang Shi Lin Wang Qinghua Liu Yang Wang Qiyang Jiao Guixin Ma Chen Ye Yi Xie Xiaojun Wu Wangsheng Chu Changzheng Wu | 2022 | Science China Chemistry2022，65，12： | 0 |
| 8 | Alterations of soil aggregates and intra-aggregate organic carbon fractions after soil conversion from paddy soils to upland soils:Distribution,mineralization and driving mechanism显示文摘Investigating the impacts of soil conversion on soil organic carbon(OC) content and its fractions within soil aggregates is essential for defining better strategies to improve soil structure and OC sequestration in terrestrial ecosystems. However, the consequences of soil conversion from paddy soil to upland soil for soil aggregates and intra-aggregate OC pools are poorly understood. Therefore, the objective of this study was to quantify the effects of soil conversion on soil aggregate and intra-aggregate OC pool distributions. Four typical rice-producing areas were chosen in North and South China, paired soil samples(upland soil converted from paddy soil more than ten years ago vs. adjacent paddy soil) were collected(0–20 cm) with three replicates in each area. A set of core parameters(OC preservation capacity, aggregate carbon(C) turnover, and biological activity index) were evaluated to assess the responses of intra-aggregate OC turnover to soil conversion. Results showed that soil conversion from paddy soil to upland soil significantly improved the formation of macro-aggregates and increased aggregate stability. It also notably decreased soil intra-aggregate OC pools, including easily oxidized OCa(EOCa), particulate OCa(POCa), and mineral-bound(MOCa) OC, and the sensitivity of aggregate-associated OC pools to soil conversion followed the order: EOCa(average reduction of 21.1%) > MOCa(average reduction of 15.4%) > POCa(average reduction of 14.8%). The potentially mineralizable C(C_(0)) was significantly higher in upland soil than in paddy soil, but the corresponding decay constant(k) was lower in upland soil than in paddy soil. Random forest model and partial correlation analysis showed that EOCa and pH were the important nutrient and physicochemical factors impacting k of C mineralization in paddy soil,while MOCa and C-related enzyme(β-D-cellobiohydrolase) were identified as the key factors in upland soil. In conclusion, this study evidenced that soil conversion from paddy soil to upland soil increased the percentage of macro-aggregates and aggregate stability, while decreased soil aggregate-associated C stock and k of soil C mineralization on a scale of ten years. Our findings provided some new insights into the alterations of soil aggregates and potential C sequestration under soil conversion system in rice-producing areas. | Longfei KANG Jiamei WU Chunfeng ZHANG Baoguo ZHU Guixin CHU | 2024 | Pedosphere2024，34，1： | 0 |
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