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Spatio-temporal evolution and influencing factors of urban green development efficiency in China

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Journal of Geographical Sciences 2020年第5期30卷 724-742页

作者： ZHOU liang ZHOU Chenghu CHE Lei wang bao Faculty of Geomatics Lanzhou Jiaotong UniversityLanzhou 730070China State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China School of Architecture and Urban Planning Nanjing UniversityNanjing 210093China Northwest Institute of Eco-Environment and Resources CASLanzhou 730000China

To resolve conflicts between development and the preservation of the natural environment,enable economic transformation,and achieve the global sustainable development goals(SDGs),green development(GD)is gradually becoming a major strategy in the construction of an ecological civilization and the ideal of building a"beautiful China",alongside the transformation and reconstruction of the global *** on a combination of the concept and implications of GD,we first used the Slacks Based Model with undesirable outputs(SBM-Undesirable),the Theil index,and the spatial Markov chain to measure the spatial patterns,regional differences,and spatio-temporal evolution of urban green development efficiency(UGDE)in China from 2005 to ***,by coupling natural and human factors,the mechanism influencing UGDE was quantitatively investigated under the framework of the human-environment *** results showed that:(1)from 2005 to 2015,the UGDE increased from 0.475 to 0.523,i.e.,an overall increase of 10%.In terms of temporal variation,there was a staged increase,with its evolution having the characteristics of a"W-shaped"pattern.(2)The regional differences in UGDE followed a pattern of eastern>central>*** different types of urban agglomeration,the UGDE had inverted pyramid cluster growth characteristics that followed a pattern of"national level>regional level>local level",forming a stable hierarchical scale structure of"super cities>mega cities>big cities>medium cities>small cities".(3)UGDE in China has developed with significant spatial agglomeration ***-efficiency type cities have positive spillover effects,while low-efficiency cities have negative *** types of urban evolution processes have a path dependence,and a spatial club convergence phenomenon exists,in which areas with high UGDE are concentrated and drive low UGDE elsewhere.(4)Under the framework of regional human-environment interaction,the degree of human and soc

关键词： green development efficiency green city green economy spatial scale sustainable development goals(SDGs)

St udy on Hsp90 Expression in Different Tissues and Its Antibody in Serum of Chickens Infected with Marek's Diseases

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Journal of Integrative Agriculture 2014年第6期13卷 1355-1362页

作者： LI Yu-bao LI Juan wang Zhi-liang LIU Si-dang School of Agriculture Liaoche ng University School of Veterinary Medicine Shandong Agricultural University China Animal Health and Epidemiology Center

To investigate the dynamic change of heat shock protein 90 （Hsp90） in the genesis and development of tumor, we successfully established tumor animal model using Marek’s disease and then determined the location of Hsp90 in the tumor tissue using immunohistochemistry method, the antibody titer level of Hsp90 in the serum and the expression level in the tissue using enzyme-linked immunosorbent assay （ELISA） method. Our result showed that Hsp90 location in the tumor tissue was signiifcantly associated with the tumor cell and most in the cytoplasm of the tumor cell, and Hsp90 expression level in the tissue and the antibody titer level in the serum was most signiifcantly increased with the development of tumor. This is the ifrst report to show the presence of Hsp90 in tumor tissues induced by the Marek’s disease, with its expression correlated to the tumoral grading. These data may also be valuable for developing new molecular anti-cancer therapies.

关键词： heat shock protein 90 Marek's disease immunohistochemistry expression antibody titer level

Partition of polycyclic aromatic hydrocarbons on organoben-tonites from water

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Journal of Environmental Sciences 2001年第2期13卷 129-136页

作者： CHEN bao-liang ZHU Li-zhong Department of Environmental Science Zhejiang UniversityHangzhou 310028China

A series of organobentonites synthesized by exchanging organic ration such as dodecyltri-methylammonium ( DTMA), benzyldimethyltetradecylammonium (BDTDA), cetyltrimethyl-ammonium (CTMA), octodeyltrimethylammonium (OTMA) on bentonite The optimal condition, properties and mechanisms for the organobentonites to sorb phenanthrene, anthracene, naphthalene, acenaphthene in water were investigated in detail. The partition behavior was determined for four polycyclic aromatic hydrocarbons (PAHs), such as naphthalene, phenanthrene, anthracene and acenaphthene, from water to a series of organobentortites. The interlayer spacings and organic carbon contents of organobentonites, removal rate and sorption capacities for organobentonites to treat phenanthrene, anthracene, naphthalene, acenaphthene were correlated to the length of alkyl chains and the amounts of ration surfactant exchanged on the bentonite. Phenanthrene, anthracene, naphthalene, and acenaphthene sorption to organobentonites were characterized by linear isotherms, indicating solute partition between water and the organic phase composed of the large alkyl functional groups of quaternary ammonium rations. PAHs distribution coefficients (K-d) between organobentonites and water were proportional to the organic carbon contents of organobentonites. However, the partition coefficients ( K-oc) were nearly constants for PAHs in the system of organobentonite-water. The K-ocx of phenanthrene, anthracene, naphthalene, acenaphthene were 2.621 x 10(5), 2.106 x 10(5), 2.247 x 10(4), 5.085 x 10(4), respectively. The means K-oc values on the organobentonites are about ten to twenty times larger than the values on the soils/sediments, what is significant prerequisite for organobentonite to apply to remediation of pollution soil and groundwater. The sorption mechanism was also evaluated from octanol-water partition coefficients and aqueous solubility of PAHs. The correlations between 1gK(oc) and 1gK(ow), 1gK(oc) and 1gS for PAHs in th

关键词： organobentonites polycyclic aromatic hydrycarbons partition

Sorption of 1-naphthol by plant cuticular fractions

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Journal of Environmental Sciences 2007年第10期19卷 1214-1220页

作者： CHEN bao-liang LI Yun-gui Department of Environmental Science Zhejiang University Hangzhou 310028 China

The contribution of aliphatic-rich plant biopolymer to sorption of hydrophobic organic compounds is significantly important because of their preservation and accumulation in the soil environment, but sorption mechanism is still not fully understood. In this study, sorption of 1-naphthol by plant cuticular fractions was examined to better understand the contributions of respective fraction. Toward this end, cuticular materials were isolated from the fruits of tomato by chemical method. The tomato cuticle sheet consisted of waxes （6.5 wt%）, cuticular monomer （69.5 wt%）, and polysaccharide （24.0 wt%）. Isotherms of 1-naphthol to the cuticular fractions were nonlinear （N value （0.82 - 0.90）） at the whole tested concentration ranges. The K∞/Kow ratios for bulk cuticle （TC1）, dewaxed cuticle （TC2）, cutin （TC4）, and desugared cuticle （TC5） were larger than unity, suggested that tomato bulk cuticle and cutin are much powerful sorption medium. Sorption capability of cutin （TC4） was 2.4 times higher than the nonsaponifiable fraction （TC3）. The 1-naphthol interactions with tomato cuticular materials were governed by both hydrophobic-type interactions and polar （H-bonding） interactions. Removal of the wax and polysaccharide materials from the bulk tomato cuticle caused a significant increase in the sorption ability of the cuticular material. There was a linear negative trend between K∞ values and the amount of polysaccharides or fraction＇s polarities （（N＋O）/C）; while a linear positive relationship between K∞ values and the content ofcutin monomer （linear R^2 = 0.993） was observed for present in the cuticular fractions. Predominant sorbent of the hydrophobic organic compounds （HOCs） in the plant cuticular fraction was the cutin monomer, contributing to 91.7% of the total sorption of tomato bulk cuticle.

关键词： plant cuticle 1-naphthol sorption cutin monomer

Chemical behavior of organic compounds in the interface of water/dual-cation organobentonite

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Journal of Environmental Sciences 2002年第1期14卷 12-19页

作者： CHEN bao liang ZHU Li zhong Department of Environmental Science Zhejiang UniversityHangzhou 310028China.

The sorption behavior of polar or ionizable organic compounds, such as p nitrophenol, phenol and aniline, in the water/organobentonite systems is investigated. Both adsorption and partition occur to the sorption of organic compounds to dual cation organobentonites. The separate contributions of adsorption and partition to the total sorption of organic compounds to dual cation organobentonites are analyzed mathematically in the first time. The factors to the contributions are also discussed. The results indicated that the contribution of adsorption and partition is related to the composition and ratio of dual cation surfactants exchanging onto the bentonite. The sorption of organic compounds to dual cation organobentonite is dominated by adsorption at low concentrations and by partition at high concentrations, making the organobentonites powerful sorbents for organic contaminants over wide range of concentrations.

关键词： dual-cation organobentonite p-nitrophenol phenol aniline sorption behavior

Satellite remote sensing reveals overwhelming recovery of forest from disturbances in Asia

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 46-51页

作者： Yiying Zhu Hesong wang Anzhi Zhang School of Ecology and Nature Conservation Beijing Forestry UniversityBeijingChina Key Laboratory of Regional Climate and Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Forestry and Landscape Architecture Xinjiang Agricultural UniversityUrumqiChina

Forest ecosystems play key roles in mitigating human-induced climate change through enhanced carbon uptake;however,frequently occurring climate extremes and human activities have considerably threatened the stability of *** the same time,detailed accounts of disturbances and forest responses are not yet well quantified in *** study employed the Breaks For Additive Seasonal and Trend method-an abrupt-change detection method-to analyze the Enhanced Vegetation Index time series in East Asia,South Asia,and Southeast *** approach allowed us to detect forest disturbance and quantify the resilience after *** showed that 20%of forests experienced disturbance with an increasing trend from 2000 to 2022,and Southeast Asian countries were more severely affected by ***,95%of forests had robust resilience and could recover from disturbance within a few *** resilience of forests suffering from greater magnitude of disturbance tended to be stronger than forests with lower disturbance *** summary,this study investigated the resilience of forests across the low and middle latitudes of Asia over the past two *** authors found that most forests exhibited good resilience after disturbance and about two-thirds had recovered to a better state in *** findings of this study underscore the complex relationship between disturbance and resilience,contributing to comprehension of forest resilience through satellite remote sensing.

关键词： Forest ecosystem Enhanced vegetation index Breaks for additive seasonal and trend method Disturbance Resilience

Effective regeneration of high-performance anode material recycled from the whole electrodes in spent lithium-ion batteries via a simplified approach

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Green Energy & Environment 2021年第5期6卷 725-733页

作者： Long Ye Chunhui wang liang Cao Hougui Xiao Jiafeng Zhang bao Zhang Xing Ou National Engineering Laboratory for High Efficiency Recovery of Refractory Nonferrous Metals School of Metallurgy and EnvironmentCentral South UniversityChangsha410083China

Along with the extensive application of energy storage devices,the spent lithium-ion batteries(LIBs)are unquestionably classified into the secondary resources due to its high content of several valuable ***,current recycling methods have the main drawback to their tedious process,especially the purification and separation ***,we propose a simplified process to recycle both cathode(LiCoO_(2))and anode(graphite)in the spent LIBs and regenerate newly high-performance anode material,CoO/CoFe2O4/expanded graphite(EG).This process not only has the advantages of succinct procedure and easy control of reaction conditions,but also effectively separates and recycles lithium from transition *** 98.43%of lithium is recovered from leachate when the solid product CoO/CoFe2O4/EG is synthesized as anode material for *** the product exhibits improved cyclic stability(890 mAh g^(-1) at 1 A g^(-1) after 700 cycles)and superior rate capability(208 mAh g^(-1) at 5 A g^(-1)).The merit of this delicate recycling design can be summarized as three aspects:the utilization of Fe impurity in waste LiCoO_(2),the transformation of waste graphite to EG,and the regeneration of anode *** approach properly recycles the valuable components of spent LIBs,which introduces an insight into the future recycling.

关键词： Spent lithium ion battery Regenerating Anode material Succinct procedure High-added value

Synthesis,Structure,Luminescence and Thermal Stability Properties of a New(3,4)-Connected 2D Zn Coordination Polymer

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Chinese Journal of Structural Chemistry 2020年第10期39卷 1835-1840,1743页

作者： wang Hai-Peng wang Hong-liang LI bao-Long School of Chemistry and Environmental Engineering Shanxi Datong UniversityDatongShanxi 037009China Institute of Materials Science&Department of Chemistry Xinzhou Teachers UniversityXinzhouShanxi 034000China State and Local Joint Engineering Laboratory for Functional Polymeric Materials College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

A new zinc coordination polymer{[Zn2(ttmb)2(dca)4(H2O)].H2O}n(1.H2O)was synthesized by the reaction of 1,3,5-tris(1,2,4-triazol-1-ylmethyl)benzene(ttmb),Zn(Ⅱ)salt and sodium dicyanamide(Na(dca)).The structure of the title compound was determined by single-crystal X-ray diffraction,elemental analyses and IR spectra.1 exhibits a(3,4)-connected 2D double-layer network with the point symbol of{63}{(66}.The solid-state luminescence shows a strong emission band at 485 nm upon excitation at 384 *** thermal stability properties were also studied.

关键词： coordination polymer structure (3 4)-connected luminescence thermal stability properties

Velocity and turbulence characteristics in an open channel with multi-row staggered vegetation patches

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Journal of Hydrodynamics 2021年第5期33卷 1035-1044页

作者： Hong-sheng Fu Dan wang Wen-qi Li bao-liang Ren Ke-jun Yang State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan UniversityChengdu 610065China

A staggered distribution of vegetation is very common in nature,which might significantly affect the flow *** investigate its impact,three rows of staggered vegetation groups are designed under seven different working *** horizontal and vertical distances between the vegetation groups are constant,while the vegetation density is *** flow field is measured by the acoustic Doppler velocimeter(ADV).It is indicated that both the patch exit velocity and the steady wake velocity decrease with the increase of the density,which is also related to the vegetation *** for the first patch,the upstream adjustment regions of all patches are diminished to some extent,due to the effect of the contralateral *** steady wake region also shows a decreasing trend,with a reduction of 0.5D each time when the water flows through the *** means that the flow structure is also affected by the number of vegetation *** intensity of the turbulence increases along the channel and has a non-axisymmetric distribution similar to that of the *** Karman vortex street generated by the patches on the same side would merge into a larger vortex *** on its intensity,the vegetation at the back has different effects on the vortex street.

关键词： Velocity turbulence intensity staggered vegetation patches Karman vortex street open channel