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| 1 | Variations in leaf litter decomposition across contrasting forest stands and controlling factors at local scale显示文摘Aims litter decomposition is a critical pathway linking the above-and belowground processes.However,factors underlying the local spatial variations in forest litter decomposition are still not fully addressed.We investigated leaf litter decomposition across con-trasting forest stands in central China,with objective to determine the spatial variations and controlling factors in forest floor leaf lit-ter decomposition in relation to changes in forest stands in a tem-perate forest ecosystem.Methods leaf litter decomposition was studied by using litterbag method across several typical forest stand types in baotianman Nature reserve,central China,including pure stands of Quercus aliena var.acuteserrata,Q.glandulifera var.brevipetiolata and Q.vari-abilis,respectively,and mixed pine/oak stands dominated by Pinus armandii and Q.aliena var.acuteserrata,as well as stands of pure Q.aliena var.acuteserrata trees ranging in stand age from~40 to>160 years.measurements were made on litter mass remaining and changes in litter chemistry during decomposition over a 2-year period,along with data collections on selective biotic and environmental factors.a reciprocal transplant experiment involv-ing Q.aliena var.acuteserrata and Q.variabilis was concurrently carried out to test the occurrence of‘home-field advantage(HFa)’in local forests when only considering contrasting oak tree spe-cies.Correlation analyses and path analyses were performed to identify the dominant drivers and their relative contributions to variations in leaf litter decomposition.Important findingssignificant variations were found in the rate of leaf litter decomposi-tion among stands of different tree species but not among stand age classes.The values of decay constant,k,varied from 0.62 in Q.aliena var.acuteserrata stands to 0.56 in Q.variabilis stands.The reciprocal litter transplant experiment showed that the rate of leaf litter decom-position was on average 5%slower in home-fields than on recipro-cal sites.Path analysis identified litter acid-unhydrolyzable residue(AUR)to N ratio,soil microbial biomass carbon(MBC),soil pH and soil organic carbon(SOC)as most prominent factors controlling the rate of leaf litter decomposition,collectively accounting for 57.8%of the variations;AUR/N had the greatest negative effect on k value,followed by weaker positive effects of SOC and MBC.our findings suggest that tree species plays a primary role in affecting forest floor leaf litter decomposition by determining the litter quality,with site environment being a secondary factor contributing to the local vari-ations in leaf litter decomposition in this temperate forest ecosystem. | Juan Wang Yeming You Zuoxin Tang Shirong Liu Osbert Jianxin Sun | 2015 | Journal of Plant Ecology2015，8，3： | 6 |
| 2 | Changes in soil organic carbon contents and fractionations of forests along a climatic gradient in China显示文摘Background: Soil organic carbon(SOC) is a large reservoir of terrestrial carbon(C); it consists of different fractions of varying complexity and stability. Partitioning SOC into different pools of decomposability help better predict the trend of changes in SOC dynamics under climate change. Information on how physical fractions and chemical structures of SOC are related to climate and vegetation types is essential for spatial model ing of SOC processes and responses to global change factors.Method: Soil samples were col ected from multiple representative forest sites of three contrasting climatic zones(i.e. cool temperate, warm temperate, and subtropical) in eastern China. Measurements were made on SOC contents and physical fractions of the 0–20 cm soil layer, and the chemical composition of SOC of the 0–5 cm soil layer, along with measurements and compilation of the basic site and forest stand variables. The long-term effects of temperature, litter inputs, soil characteristics and vegetation type on the SOC contents and factions were examined by means of 'space for time substitution' approach and statistical analysis.Result: Mean annual temperature(MAT) varied from 2.1 °C at the cool temperate sites to 20.8 °C at the subtropical sites. Total SOC of the 0–20 cm soil layer decreased with increasing MAT, ranging from 89.2 g·kg^(-1) in cool temperate forests to 57.7 g·kg^(-1) in subtropical forests, at an average rate of 1.87% reduction in SOC with a 1 °C increase in MAT.With increasing MAT, the proportions of aromatic C and phenolic C displayed a tendency of decreases, whereas the proportion of alkyl C and A/O-A value(the ratio of alkyl C to the sum of O-alkyl C and acetal C) displayed a tendency of increases. Overall, there were no significant changes with MAT and forest type in either the physical fractions or the chemical composition. Based on the relationship between the SOC content and MAT, we estimate that SOC in the top 20 soil layer of forests potentially contribute 6.58–26.3 Pg C globally to the atmosphere if global MAT increases by 1 °C–4 °C by the end of the twenty-first century, with nearly half of which(cf. 2.87–11.5 Pg C) occurring in the 0–5 cm mineral soils.Conclusion: Forest topsoil SOC content decreased and became chemical y more recalcitrant with increasing MAT,without apparent changes in the physical fractions of SOC. | Xiaolu Sun Zuoxin Tang Michael G.Ryan Yeming You Osbert Jianxin Sun | 2019 | Forest Ecosystems2019，6，1： | 4 |
| 3 | Cloning and expression pattern of a Smad3 homolog from the pearl oyster, Pinctada fucata显示文摘几转变生长因素贝它(TGF ) 总科成员从软体动物被识别了。在脊椎动物在骨头形成上表明小径的 TGF 的重要效果把线索给信号 transduction 机制并且牡蛎的壳怎么被形成。不管多么,什么样的调停人,并且怎么涉及表明小径的软体动物的 TGF 他们在软体动物玩功能很好没由于 genomic 信息和失败的缺乏被解释建立牡蛎房间线。如果我们知道了染色体顺序,也就是说,我们能用 BLAST 程序(http://gffzz16a62c593b5540cehcwovbwxvv5u560v0.ffgz.tsg.suse.edu.cn/)寻找 TGF 总科成员,并且如果我们建立了软体动物的房间,排队我们能 transfect 房间感兴趣的基因并且在另外的基因的表达式层次上检测它的影响,例如矩阵蛋白质。因此,调查是否在软体动物有类似的 TGF 小径,许多重要调停人应该被识别。在这份报纸,我们报导编码从珍珠牡蛎被孤立的一个 Smad3 相当或相同的事物(指明的 Pf-Smad3 ) 的 cDNA, Pinctada fucata。顺序排列证明 Pf-Smad3 包含 aDNA-bindingMH1 领域和一个 Runx2/Cbfa1-bindingMH2 领域,并且在脊椎动物与 Smad3 蛋白质分享极其高的类似。然而,在果蝇和 Caenorhabditis elegans 的 Smad 蛋白质与另外的 Smad3 蛋白质很不同。反向的抄写聚合酶链反应结果显示 Pf-Smad3 mRNA 在成年大头针无所不在地被表示。fucata 并且在不同发展阶段在不同层次被表示。在 situ 杂交,结果证明 Pf-Smad3 mRNA 主要在中间的褶层的外部上皮的房间和外部褶层的内部上皮的房间被表示,特别在沟附近。这些结果建议 Pf-Smad3 可能参加许多生理的过程,包括 biomineralization,在牡蛎。 | Yujuan Zhou Zuoxin He Qing Li Liping Xie Rongqing Zhang | 2008 | Acta Biochimica et Biophysica Sinica2008，40，3： | 4 |
| 4 | Simulation and Experimental Study on the Effect of Dispersants on Soot Aggregation显示文摘Diesel engine technology innovation causes excessive soot accumulated in engine oil.Due to its detrimental effect on lubricant and diesel engine,improving the dispersibility of engine oil to restrain soot aggregation efficiently is the key technique for formulations.In this study,the aggregation of soot and interaction between dispersant and soot were investigated by molecular dynamic simulation.It was found that the molecular interaction between the dispersant and the soot aggregation system had a significant influence on disrupting the soot aggregation.Bis-PIBSI was more beneficial to having more interaction sites with soot molecules,while the mono-PIBSI with a high proportion of polar groups had stronger interaction with soot molecules.According to the simulation result,suggestions for use of additives were proposed.Carbon black dispersancy test was exploited to verify the dispersion effect of different dispersants on carbon black.The results indicate that mono-PIBSI and bis-PIBSI added at suitable mixture ratio to lubricant could perform good dispersion ability. | Liu Qiong Wu Zhiqiang Huang Zuoxin Zhang Feng Zhao Yi | 2020 | China Petroleum Processing & Petrochemical Technology2020，22，4： | 2 |
| 5 | A comparison of decomposition dynamics among green tree leaves,partially decomposed tree leaf litter and their mixture in a warm temperate forest ecosystem显示文摘Decomposition dynamics were compared among green tree leaves,partially decomposed tree leaf litter(i.e.,decayed tree leaf litter on forest floor) and a mixture of the two in a warm temperate forest ecosystem in central China to test the influence of litter chemical quality on the degree of decomposition.The study was conducted in situ at two contrasting forest sites,an oak forest dominated by Quercus aliena var.acuteserrata Maxim.,and a mixed pine and oak forest dominated by Pinus armandii Franch.and Q.aliena var.acuteserrata.We found marked differences in the rate of decomposition among litter types at both forest sites;the litter decomposition constant,k,was about 39 % greater at the oak forest site and more than 70 % greater at the pine-oak forest site,for green leaves than for partially decomposed leaf litter.The decomposition dynamics and temporal changes in litter chemistry of the three litter types also greatly differed between the two forest sites.At both forest sites,the higher rate of decomposition for the green leaves was associated with a higher nitrogen(N) content and lower carbon to N ratio(C/N) and acid-unhydrolyzable residue to N ratio(AUR/N).We did not find any nonadditive effects when mixing green leaves and partially decomposed leaf litter.Our findings support the contention that litter chemical quality is one of the most important determinants of litter decomposition in forest ecosystems at the local or regional scale,but the effect of litter chemical quality on decomposition differs between the contrasting forest types and may vary with the stage of decomposition. | Juan Wang Yeming You Zuoxin Tang Xiaolu Sun Osbert Jianxin Sun | 2016 | Journal of Forestry Research2016，27，5： | 2 |
| 6 | Synthesis and characterization of a novel superabsorbent based on chenmically modified pulverized wheat straw and acrylic acid显示文摘 | Liu Zuoxin Miao Yonggang Wang Zhenying | 2009 | Carbohydrate Polymers2009，71，1： | 1 |
| 7 | Generalization of La Salle's theorem显示文摘 | Gan Zuoxin Han Jingqing | 2001 | Ann of Diff Eqs2001，17，2： | 1 |
| 8 | Synthesis and characterization of a novel super-absorbent based on chemically modified pulverized wheat straw and acrylic acid显示文摘 | Liu Zuoxin Miao Yonggang Wang Zhenying | 2009 | Carbohydrate Polymers2009，77，1： | 1 |
| 9 | Rainwater catchment and system efficiency of water storage irrigating greenhouse on hillside fields in hilly semi-arid area显示文摘 | Gao Peng Liu Zuoxin | 2003 | Journal of Experimental Botany2003，54，2： | 1 |
| 10 | Synthesis and characterization of a novel super-absorbent based on chemically modified pulverized wheat and acrylic acid显示文摘 | Liu Zuoxin Miao Yonggang Wang Zhenying | 2009 | Carbohyd Polym2009，77，1： | 1 |
| 11 | Synthesis and Characterization of a Novel Supe>abmrbent Based on Chemically Modified Pulverized Wheat Straw and Acrylic Acid显示文摘 | Liu Zuoxin Miao Yonggang Wang Zhenying | 2009 | Carbohydrate Polymers2009，77，13： | 1 |
| 12 | Printability of calcium phosphate: Calcium sulfate powders for the application of tissue engineered bone scaffolds using the 3D printing technique显示文摘 | Zuoxin Zhou Fraser Buchanan Christina Mitchell Nicholas Dunne | 2014 | Materials Science & Engineering C2014，，： | 1 |
| 13 | Challenges in the Technology Development for Additive Manufacturing in Space显示文摘Instead of foreseeing and preparing for all possible scenarios of machine failures,accidents,and other challenges arising in space missions,it appears logical to take advantage of the flexibility of additive manufacturing for“in-space manufacturing”(ISM).Manned missions into space rely on complicated equipment,and their safe operation is a great challenge.Bearing in mind the absolute distance for manned missions to the Moon and Mars,the supply of spare parts for the repair and replacement of lost equipment via shipment from Earth would require too much time.With the high flexibility in design and the ability to manufacture ready-to-use components directly from a computer-aided model,additive manufacturing technologies appear to be extremely attractive in this context.Moreover,appropriate technologies are required for the manufacture of building habitats for extended stays of astronauts on the Moon and Mars,as well as material/feedstock.The capacities for sending equipment and material into space are not only very limited and costly,but also raise concerns regarding environmental issues on Earth.Accordingly,not all materials can be sent from Earth,and strategies for the use of in-situ resources,i.e.,in-situ resource utilization(ISRU),are being envisioned.For the manufacturing of both complex parts and equipment,as well as for large infrastructure,appropriate technologies for material processing in space need to be developed. | Andrea Zocca Janka Wilbig Anja Waske Jens Günster Martinus Putra Widjaja Christian Neumann Mélanie Clozel Andreas Meyer Jifeng Ding Zuoxin Zhou Xiaoyong Tian | 2022 | Chinese Journal of Mechanical Engineering(Additive Manufacturing Frontiers)2022，1，1： | 1 |
| 14 | Synthesis and characterization of a novel super-absorbent based on chemically modified pulverized wheat straw and acrylic acid显示文摘 | LIU Zuoxin MIAO Yonggang WANG Zhenying | 2009 | Carbohydrate Polymers2009，77，1： | 1 |
| 15 | Syn-thesis and characterization of a novel super-absorbentbased on chemically modified pulverized wheat straw andacrylic acid显示文摘 | Liu Zuoxin Miao Yonggang Wang Zhenying | 2009 | Carbohydrate Polymers2009，77，1： | 1 |
| 16 | Rainwater Catchment and System Efficiency of Water Storage Irrigating Greenhouse on Hillside Fields in Hilly Semi-arid Area显示文摘 | Liu Zuoxin Gao Peng | 2003 | Journal of Experimental Botany2003，54，： | 1 |
| 17 | Subsurface drip irrigation scheduling for cucumber ( Cucumis sativus L) grown in solar greenhouse based on 20 cm standard pan evaporation in Northeast China显示文摘 | Zhenying Wang Zuoxin Liu Zikun Zhang | 2009 | Scientia Horticulturae2009，123，1： | 1 |
| 18 | Synthesis and characterization of a novel super-ab- sorbent based on chemically modifed pulverized wheat straw and acrylic acid显示文摘 | LIU ZUOXIN MIAO YONGGANG WANG ZHENYING | 2009 | Carbohydrate Polymers2009，77，1： | 1 |
| 19 | Synthesis and characterization of a novel super-absorbent based on chemically modified pulverized wheat straw and acrylic acid显示文摘 | Zuoxin Liu Yonggang Miao Zhenying Wang Guanghua Yin | 2008 | Carbohydrate Polymers2008，，1： | 1 |
| 20 | A Continuous Crustal Stress Monitoring Method for Earthquake Prediction显示文摘 | Zuoxin Cai | 2008 | Pure and Applied Geophysics (-)2008，，9： | 1 |
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