|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Spatial-temporal variations of ecological vulnerability in the Tarim River Basin,Northwest China显示文摘As the largest inland river basin of China,the Tarim River Basin(TRB),known for its various natural resources and fragile environment,has an increased risk of ecological crisis due to the intensive exploitation and utilization of water and land resources.Since the Ecological Water Diversion Project(EWDP),which was implemented in 2001 to save endangered desert vegetation,there has been growing evidence of ecological improvement in local regions,but few studies have performed a comprehensive ecological vulnerability assessment of the whole TRB.This study established an evaluation framework integrating the analytic hierarchy process(AHP)and entropy method to estimate the ecological vulnerability of the TRB covering climatic,ecological,and socioeconomic indicators during 2000-2017.Based on the geographical detector model,the importance of ten driving factors on the spatial-temporal variations of ecological vulnerability was explored.The results showed that the ecosystem of the TRB was fragile,with more than half of the area(57.27%)dominated by very heavy and heavy grades of ecological vulnerability,and 28.40%of the area had potential and light grades of ecological vulnerability.The light grade of ecological vulnerability was distributed in the northern regions(Aksu River and Weigan River catchments)and western regions(Kashgar River and Yarkant River catchments),while the heavy grade was located in the southern regions(Kunlun Mountains and Qarqan River catchments)and the Mainstream catchment.The ecosystems in the western and northern regions were less vulnerable than those in the southern and eastern regions.From 2000 to 2017,the overall improvement in ecological vulnerability in the whole TRB showed that the areas with great ecological improvement increased by 46.11%,while the areas with ecological degradation decreased by 9.64%.The vegetation cover and potential evapotranspiration(PET)were the obvious driving factors,explaining 57.56% and 21.55%of the changes in ecological vulnerability across the TRB,respectively.In terms of ecological vulnerability grade changes,obvious spatial differences were observed in the upper,middle,and lower reaches of the TRB due to the different vegetation and hydrothermal conditions.The alpine source region of the TRB showed obvious ecological improvement due to increased precipitation and temperature,but the alpine meadow of the Kaidu River catchment in the Middle Tianshan Mountains experienced degradation associated with overgrazing and local drought.The improved agricultural management technologies had positive effects on farmland ecological improvement,while the desert vegetation in oasis-desert ecotones showed a decreasing trend as a result of cropland reclamation and intensive drought.The desert riparian vegetation in the lower reaches of the Tarim River was greatly improved due to the implementation of the EWDP,which has been active for tens of years.These results provide comprehensive knowledge about ecological processes and mechanisms in the whole TRB and help to develop environmental restoration measures based on different ecological vulnerability grades in each sub-catchment. | BAI Jie LI Junli BAO Anmin CHANG Cun | 2021 | Journal of Arid Land2021，13，8： | 3 |
| 2 | Evaluation of substrates for zinc negative electrode in acid PbO_2–Zn single flow batteries显示文摘An investigation was performed on the suitability of carbon materials, metallic lead and its alloys as substrates for zinc negative electrode in acid Pb O2–Zn single flow batteries. The zinc deposition process was carried out in the medium of 1 mol·L-1H2SO4 at room temperature. No maximum current appears on the potentiostatic current transients for the zinc deposition on lead and its alloys. With increasing overpotential, the progressive nucleation turns to be a 3D-instantaneous nucleation process for the resin-graphite composite. Hydrogen evolution on the graphite composite is effectively suppressed with the doping of a polymer resin. The hydrogen evolution reaction on the lead is relatively weak, while on the lead alloys, it becomes serious to a certain degree. Although the exchange current density of zinc deposition and dissolution process on the graphite composite is relatively low,the zinc corrosion is weakened to a great extent. With the increase of deposition time, zinc deposits are more compact. The cyclings of zinc galvanostatic charge–discharge on the graphite composite provide more than90% of coulombic and 80% of energy efficiencies, and exhibit superior cycling stability during the first 10 cycles. | Junli Pan YuehuaWen Jie Cheng Junqing Pan Shouli Bai Yusheng Yang | 2016 | Chinese Journal of Chemical Engineering2016，24，4： | 2 |
| 3 | Antimicrobial effect and membrane-active mechanism of tea polyphenols against Serratia marcescens显示文摘 | Shumin Yi Wei Wang Fengling Bai Junli Zhu Jianrong Li Xuepeng Li Yongxia Xu Tong Sun Yutang He | 2014 | World Journal of Microbiology and Biotechnology2014，，2： | 2 |
| 4 | The source and transport of bioaerosols in the air:A review显示文摘Recent pandemic outbreak of the corona-virus disease 2019(COVID-19)has raised widespread concerns about the importance of the bioaerosols.They are atmospheric aerosol particles of biological origins,mainly including bacteria,fungi,viruses,pollen,and cell debris.Bioaerosols can exert a substantial impact on ecosystems,climate change,air quality,and public health.Here,we review several relevant topics on bioaerosols,including sampling and detection techniques,characterization,effects on health and air quality,and control methods.However,very few studies have focused on the source apportionment and transport of bioaerosols.The knowledge of the sources and transport pathways of bioaerosols is essential for a comprehensive understanding of the role microorganisms play in the atmosphere and control the spread of epidemic diseases associated with them.Therefore,this review comprehensively summarizes the up to date progress on the source characteristics,source identification,and diffusion and transport process of bioaerosols.We intercompare three types of diffusion and transport models,with a special emphasis on a widely used mathematical model.This review also highlights the main factors affecting the source emission and transport process,such as biogeographic regions,land-use types,and environmental factors.Finally,this review outlines future perspectives on bioaerosols. | Wenwen Xie Yanpeng Li Wenyan Bai Junli Hou Tianfeng Ma Xuelin Zeng Liyuan Zhang Taicheng An | 2021 | Frontiers of Environmental Science & Engineering2021，15，3： | 2 |
| 5 | Modular neural networks for predicting settlement during tunneling显示文摘 | Shi jinsheng Ortigao J A R Bai Junli | 1998 | Journal of Geotechnical and Geoenvironmental Engineering ASCE1998，124，5： | 1 |
| 6 | Modular neural net works for predicting settlements during tunneling显示文摘 | Shi Jinsheng Ortigao J A R Bai Junli | 1998 | Journal of Geo-technical and Geo-environmental Engineering ASCE1998，124，5： | 1 |
| 7 | Improving arsenic mobility concentration from As-polluted soils by the functional strains显示文摘Arsenic(As)contamination has become the environment issue of global concern.In China,large area of farmland and the site soil were contaminated by As,which means that suitable remedying methods were urgently needed.Phytoremediation,as one of environment-friendly soil remediation techniques developed in recent years,shows a bright future for the remediation of As contaminated soils.However,phytoremediation efficiency needs to be enhanced further because of low concentration of bioavailable As in the soils.A triangle flask culture experiment was carried out to study the effects of functional species,isolated from As-polluted soils,that could improve As mobility from the soil.These species included two bacilli,B1 and B2(Brevibacillus)and two fungi,F1(Trichoderma),F2(Fusarium).They could transform the concentration of As fractionation in the soil sterilized by the method of60Co-γray.Through the experiment,the concentrations of non-specifically-sorbed and specifically-sorbed As fractionation,and p H value of culture solution with inoculated treatment were higher than that with the control.Especially,the concentration of non-specifically-sorbed As fractionation in the treatment-inoculated species was 2 to 6 times higher than that of non-inoculation treatment.Moreover,two bacilli and two fungi could produce IAA,which was conducive to the plant survival when they were jointly used in remedying the As-contaminated soil. | BAI JianFeng LIN XianGui DAI Jue HUA JianFeng QIN Hua HU JunLi WANG YiMing ZHANG ChengLong WANG JingWei YUAN WenYi | 2015 | Science China Earth Sciences2015，58，8： | 0 |
| 8 | Enhanced electroreduction of CO_(2)to C_(2+)fuels by the synergetic effect of polyaniline/CuO nanosheets hybrids显示文摘Electrochemically converting CO_(2)to value-added multi-carbon(C_(2+))fuels and chemicals is a favorable way to achieve carbon neutrality.Herein,polyaniline/CuO nanosheets(PANI/CuO NSs)hybrid electrocatalysts are developed in order to achieve superior C_(2+)selectivity by imparting PANI functional component to the CuO NSs.The decorated PANI nanoparticles(NPs)can effectively stabilize the*CO intermediates and increase their coverage on the active Cu sites,which facilitates the C-C coupling to form multi-carbon products.Benefiting from the synergetic effect of PANI and CuO NSs,best Faradaic efficiency(FE)for C_(2+)product up to 66.4%at-1.6 V vs.reversible hydrogen electrode(RHE)in a H-cell measurement and 60.0%at 400 mA·cm^(-2) in a flow cell measurement are demonstrated by PANI/CuO NSs-25 sample.More importantly,the C_(2+)selectivity keeps stable even in a continuous measurement time period of 92 h in H-cell measurement.The present study may provide more insights for designing efficient hybrid materials toward superior C_(2+)production from electrocatalytic CO_(2)reduction. | Lian Ma Qinghong Geng Longlong Fan Jun-Xuan Li Dawei Du Junli Bai Cuiling Li | 2023 | Nano Research2023，16，7： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员