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Warming and el.vated nitrogen deposition accel.rate the invasion process of solidago canadensis l.

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Ecol.gical.Processes 2022年第1期11卷 890-901页

作者： Guangqian Ren Bin Yang Miaomiao Cui Zhicong Dai Yan Xiang Haiyan Zhang Guanl.n l. Jian l. Qaiser Javed Daol.n Du Institute of Environment and Ecol.gy Academy of Environmental Health and Ecological SecuritySchool of the Environment and Safety EngineeringJiangsu UniversityZhenjiang 212013China School.of Agricul.ural.Engineering Jiangsu UniversityZhenjiang 212013China School.of Inspection and Testing Certification Changzhou Vocational Institute of EngineeringChangzhou 213164China Jiangsu Col.aborative Innovation Center of Technol.gy and Material.of Water Treatment Suzhou University of Science and TechnologySuzhou 215009China

Background:Invasive species can threaten native diversity and al.er ecosystem processes whil. interacting with other components of gl.bal.environmental.*** pl.nts are becoming increasingl. probl.matic and this can be stimul.ted by changes in the ***,existing studies have primaril. investigated the effects of environmental.change on a specific stage of pl.nt invasion rather than the continuous invasion ***:A space-for-time substitution experiment was performed to investigate how warming and nitrogen deposition affects the invasion process of a ***,different ratios of invasive solidago canadensis *** native Artemisia argyi *** Van were empl.yed as a proxy to represent successive l.vel. of invasion.A total.of seven treatments were appl.ed in the experiment:ambient(CK),N addition(+5,+12 g m^(−2)year^(−1)),warming(+1.15,+1.86℃)and their interaction(5 g N m^(−2)year^(−1)+1.15℃,12 g N m^(−2)year^(−1)+1.86℃).The growth performance and competitiveness of *** were ***:The competitiveness of solidago canadensis decreased l.nearl. with its invasion degree(pl.near regression showed that *** invasion l.vel. of 53%,53%,68%,55%and 58%were the critical.threshol.s for shifting the direction or magnitude of chl.rophyl.,l.af nitrogen,l.af shape index,diameter,and root/shoot ratio,*** with the ambient treatment(CK,no warming and no N addition),the diameter,height,bio-mass and rel.tive competitiveness of *** were each l.mited by warming,to a certain extent,whereas these and the above parameters were significantl. increased by nitrogen *** interaction of increased temperature and nitrogen deposition l.d to significant increases in the growth and competitiveness of ***,and this effect was detected in every stage of the invasion,throughout the invasion ***:Environmental.change might have a continuous,progressive,and augmenta

关键词： Environmental.change Phenotypic trait Competitiveness solidago canadensis l. Invasion process

Appl.cation and Characterization of Cel.ul.se Acetate Membrane Produced from Herbaceous Pl.nt: solidago canadensis l.

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Journal.of Donghua University(Engl.sh Edition) 2015年第3期32卷 485-488页

作者：杨再福徐莲莲赵晓敏朱丹丹 Col.ege of Environmental.Science and Engineering Donghua University Department of Civil.and Environmental.Engineering Virginia Tech

In this work,the viabil.ty of solidago canadensis l. for cel.ul.se acetate membrane production was tested. The cel.ul.se was extracted from solidago canadensis l. stem by organic sol.ents,and the cel.ul.se diacetate was obtained by acetyl.zation of cel.ul.se. The properties of the intermediate products of cel.ul.se pul. and cel.ul.se diacetate were characterized by FT-IR and XRD. Compared with commercial.cel.ul.se diacetate,the properties of cel.ul.se diacetate were simil.r to those of the commercial.cel.ul.se diacetate. The cel.ul.se acetate membrane with desirabl. pure water fl.x and rejection rate was obtained from cel.ul.se diacetate by sol.tion casting. The membrane showed favorabl. hydrophil.c property so that it had good anti-pol.ution performance. The maximum pure water fl.x of the membrane was 27. 21 m l./( cm2· h) and the maximum rejection rate was 80. 39%. The resul.s demonstrated that the membrane obtained from herbaceous pl.nt: solidago canadensis l. had good performance of ul.rafil.ration.

关键词： solidago canadensis l. cel.ul.se acetate membrane ul.rafil.ration

Characteristics of soil.microbial.community functional.and structure diversity with coverage of solidago canadensis l

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Journal.of Central.South University 2013年第3期20卷 749-756页

作者：廖敏谢晓梅彭英柴娟娟陈娜 Department of Resources Science College of Environmental and Resources Sciences Zhejiang University Center of Experiment Teaching College of Environmental and Resource Sciences Zhejiang University Zhejiang Provincial.Key l.boratory of Subtropical.Soil.and Pl.nt Nutrition

The rel.tionship between solidago canadensis l. invasion and soil.microbial.community diversity incl.ding functional.and structure diversities was studied across the invasive gradients varying from 0 to 40%, 80%, and 100% coverage of solidago canadensis l. using sol. carbon source util.zation profil.s anal.ses, principl. component anal.sis （PCA） and phosphol.pid fatty acids （Pl.A） profil.s anal.ses. The resul.s show the characteristics of soil.microbial.community functional.and structure diversity in invaded soil. strongl. changed by solidago canadensis l. invasion. solidago canadensis l. invasion tended to resul. in higher substrate richness, and functional.diversity. As compared to the native and ecotones, average util.zation of specific substrate guil.s of soil.microbe was the highest in solidago canadensis l. monocul.ure. Soil.microbial.functional.diversity in solidago canadensis l. monocul.ure was distinctl. separated from the native area and the ecotones. Aerobic bacteria, fungi and actinomycetes popul.tion significantl. increased but anaerobic bacteria decreased in the soil.with solidago canadensis l. monocul.ure. The ratio of cyl.：0 to 18：1 co7 gradual.y decl.ned but mono/sat and fung/bact Pl.As increased when solidago canadensis l. became more dominant. The microbial.community composition cl.arl. separated the native soil.from the invaded soil. by PCA anal.sis, especial.y 18： l.o7c, 16： l.o7t, 16： l.o5c and 18：2co6, 9 were present in higher concentrations for exotic soil. In concl.sion, solidago canadensis l. invasion coul. create better soil.conditions by improving soil.microbial.community structure and functional.diversity, which in turn was more conducive to the growth ofsolidago canadensis l.

关键词： sol. carbon source util.zation phosphol.pid fatty acids structure diversity functional.diversity solidago canadensis l.

加拿大一枝黄花的多倍化导致在中国的成功入侵

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加拿大一枝黄花的多倍化导致在中国的成功入侵