Multi-scenario Simulation of the Impact of Land Use Change on the Ecosystem Service Value in the Suzhou-Wuxi-Changzhou Metropolitan Area,China

As the most economically developed metropolitan area in China’s Yangtze River Delta,the rapid changing land use patterns of Suzhou-Wuxi-Changzhou(Su-Xi-Chang) metropolitan area have profound impacts on the ecosystem service value(ESV).Based on the patterns of land use change and the ESV change in Su-Xi-Chang metropolitan area from 2000 to 2020,we set up four scenarios:natural development scenario,urban development scenario,arable land protection scenario and ecological protection scenario,and simulated the impact of land use changes on the ESV in these scenarios.The results showed that:1) the area of built-up land in the Su-XiChang metropolitan area increased significantly from 2000 to 2020,and the area of other types of land decreased.Arable land underwent the highest transfer-out area,and was primarily converted into built-up land.The total ESV of Su-Xi-Chang metropolitan area increased initially then declined from 2000–2020,and the value of almost all individual ecosystem services decreased.2) Population density,GDP per area,night lighting intensity,and road network density can negatively impact the ESV.3) The total ESV loss under the natural development and urban development scenarios was high,and the expansion of the built-up land and the drastic shrinkage of the arable land contributed to the ESV decline under both scenarios.The total ESV under arable land protection and ecological protection scenarios increases,and therefore these scenarios are suitable for future land use optimization in Su-Xi-Chang.This study could provide a certain reference for land use planning and allocation,and offer guidance for the rational allocation of land resources.

The Impact of The Three-Dimensional Cultivation Model on the Development of the Suzhou Tea Industry:Estimating Value of Output Per Acre and Diversified Sales Models

This article explores the impact of the three-dimensional cultivation mode on the development of the Suzhou tea industry,focusing on the diversified estimation of the value of output per acre and sales mode.It introduces the history and traditional cultivation practices of tea in Suzhou,as well as the current challenges and problems faced by the industry.An in-depth analysis was conducted on the overview and improvement plans of the three-dimensional cultivation mode,covering relevant technical methods.Based on this analysis,the impact of the three-dimensional cultivation on the value of output per acre was studied and predicted.Its potential and advantages were explored and compared with the effectiveness of traditional cultivation models.Additionally,the impact of the three-dimensional cultivation mode on sales was analyzed,examining its market adaptability and competitiveness,as well as its advantages in expanding sales channels and market coverage.The study also focused on the promoting effect of diversified sales models on the Suzhou tea industry,including direct consumption market development,tea processing product development and promotion,and the integration of tea culture and the tourism industry.To ensure sustainable development,the article evaluates the environmental impact,economic feasibility,social benefits,and farmer benefits of the three-dimensional cultivation model.Finally,the prospects for the development of the Suzhou tea industry were discussed,and the positioning and response strategies of the threedimensional cultivation model were proposed.

Distribution of pathogenic bacteria and antimicrobial sensitivity of eye infections in Suzhou

AIM:To investigate the types of bacteria in patients with eye infections in Suzhou and their drug resistance to commonly used antibacterial drugs.METHODS:The clinical data of 155 patients were retrospectively collected in this study,and the pathogenic bacteria species and drug resistance of each pathogenic bacteria were analyzed.RESULTS:Among the 155 patients(age from 12 to 87 years old,with an average age of 57,99 males and 56 females)with eye infections(160 eyes:74 in the left eye,76 in the right eye and 5 in both eyes,all of which were exogenous),71(45.81%)strains were gram-positive bacteria,23(14.84%)strains were gram-negative bacteria and 61(39.35%)strains were fungi.Gram-positive bacteria were highly resistant to penicillin and erythromycin(78.87%and 46.48%respectively),but least resistant to vancomycin at 0.Gram-negative bacteria were highly resistant to cefoxitin and compound sulfamethoxazole(100%and 95.65%respectively),but least resistant to meropenem at 0.Comparison of the resistance of gram-positive and gram-negative bacteria to some drugs revealed statistically significant differences(P<0.05)in the resistance of both to cefoxitin,cotrimoxazole,levofloxacin,cefuroxime,ceftriaxone and ceftazidime,and both had higher rates of resistance to gram-negative bacteria than to gram-positive bacteria.The distribution of bacterial infection strains showed that Staphylococcus epidermidis was the most common strain in the conjunctiva,cornea,aqueous humor or vitreous body and other eye parts.Besides,Fusarium and Pseudomonas aeruginosa were also among the most common strains of conjunctival and corneal infections.CONCLUSION:Gram-positive bacteria are the dominant bacteria in eye infections,followed by gram-negative bacteria and fungi.Considering the resistance of gramnegative bacteria to multiple drugs,monitoring of bacteria should be strengthened in eye bacterial infections for effective prevention and control to reduce complications caused by eye infections.

Artful Application of Garden Plants in Classical Suzhou Gardens

Defi nition of plant landscaping and features of plant landscaping in classical Suzhou gardens were introduced, the forms of combining plants and buildings, rockeries and waterscapes were analyzed by elaborating selection of plant species and plant furnishings. In addition, manifestation of artistic beauty of the classical Suzhou gardens was explored, and protective measures were given.

Seasonal Variations in Birth Weight in Suzhou Industrial Park

Many environmental factors have been shown to adversely influence birth weight,and new insight has been gained into＇seasonal programming＇.We studied a total of 23,064 infants.The mean birth weight varied across seasons.Logistic regression analysis was used to obtain the crude and adjusted odds ratios（ORs）for dichotomous outcomes（e.g.,macrosomia,low birth weight）.

Ecosystem services value of wetland in Suzhou Taihu Lake

Based on a comprehensive analysis on various classifications of natural resource values,this paper summarizes an ecological services system of constructed wetland(CW) ecosystems for the accounting of ecological economic value.With the research,the wetland ecosystem services can be classified into six categories,that is waste treatment,food and material production,water supply,gas regulations,disturbance and water regulations,habitat and refuge provision.For decision making in terms of environmental economics for wetland construction,ecosystem services value for the wetland in Suzhou Taihu Lake National Tourist and Holiday Resort is accounted for 7,088,769 USD/yr through Environmental Economics Analysis.Ecosystem services value of waste treatment is 825,000 USD/yr,that of food and material production is 1,430 USD/yr,that of water supply is 4,752,000 USD/yr,that of gas regulation is 2,251USD/yr,that of disturbance and water regulations is 1,3721 USD/yr,and that of habitat and refuge provision value is 1,494,367 USD/yr.The ecosystem services values of a pilot constructed wetland in Suzhou are compared with those of other wetlands as a mean and of a typical human-interfered wetland in Wenzhou of China.Results show that in both finite and infinite time horizons considered,the wetland in Suzhou Taihu Lake National Tourist and Holiday Resort has the largest services value.This paper analyzes all the probability that may weaken the value of the Suzhou Taihu Wetland in order to provide some advices for the wetland protection.

Analysis on the Climatic Change Characteristics of the Snow Cover Days and Its Influence Factors in Suzhou during Recent 50 Years

[Objective] The research aimed to study climatic variation characteristics of snow cover days and its influence factors in Suzhou of Anhui Province during recent 50 years. [Method] According to annual snow cover days and correlated data in Suzhou during 1961-2010, by using linear trend method, accumulative anomaly and complete correlation coefficient method, etc., the climatic variation characteristics of snow cover days and its influence factors in Suzhou were analyzed. [Result] In recent 50 years, the snow cover period in Suzhou presented shortened trend. Except days of snow cover (≥20 cm), the annual snow cover days at each thickness all showed varying degrees of decrease trend. The annual snow cover days had wavy decline trend, and the decline amplitude was 0.84 d/10 a. From the 1960s to prior period of the 1970s, the annual snow cover days presented increase trend. From middle and later periods of the 1970s to middle period of the 1980s, the snow cover days was less and gradually increased from later period of the 1980s to the early 1990s. From middle period of the 1990s to 2003, it entered into less snow period again. From 2004 to now, it presented oscillation of snowy and less-snow alternating. The main climatic factor which affected annual snow cover days in Suzhou was average temperature. The second one was average surface temperature. [Conclusion] The research provided theoretical basis for analyzing climate variation in Suzhou under the background of global climate warming.

Exercise for Health Suzhou Initiative

It is necessary to move forward the health threshold,and establish a new model of the coordination of sports,health and other government departments and the participation of the whole society.The"Healthy China-Exercise for Health Summit Forum"was held in Suzhou on August 20.

On “Native Ecological View” of Suzhou Classical Gardens

On the basis of reviewing and concluding relevant data, and construction practices of eco-garden city, origination, theoretic foundation and structural model of "native ecological view" of Suzhou classical gardens were analyzed comprehensively.

Genetic polymorphism of MCP-1-2518,IL-8-251 and susceptibility to acute pancreatitis:A pilot study in population of Suzhou,China

AIM： To study the relationship between MCP-1-2518A/ G, IL-8-251A/T polymorphism and acute pancreatitis （AP） in the Han population of Suzhou, China. METHODS： A case-control study was conducted to compare the distribution of genotype and genetic frequency of MCP-1-2518A/G, IL-8-251A/T gene polymorphism among AP （n = 101）, including mild AP （n = 78） and severe AP （n = 23） and control healthy individuals （n = 120） with polymerase chain reaction- restriction fragment length polymorphism （PCR-RFLP） and DNA sequencing, and analyze the relationship between the MCP-1-2518A/G, IL-8-251A/T gene polymorphism and the susceptibility to AP. RESULTS： Significant differences were found in the distribution of genotype of MCP-1-2518A/G between the healthy control group and mild AP group （χ^2 = 32.015, P 〈 0.001）, the same was evident between the healthy control group and severe AP group （χ^2 = 12.932, P 〈 0.05） in Suzhou. However, no difference of genotypic distribution was noted between MAP and SAP （Z2 = 0.006, P = 0.997）. The genetic frequencies of G allele in mild AP were 72.4% （113/156） and 76.1% （35/46） in severe AP, both were higher than the controls, 47.1% （113/240） （χ^2 = 24.804; P 〈 0.001, and 4,2 = 13：005; P 〈 0.001）, but no difference was found between severe AP and mild AP （χ^2 = 0.242, P = 0.623）. No difference was found in the distribution of genotype of IL-8-251A/T between the healthy control group and AP group neither in the frequency of A and T allele. CONCLUSION： The MCP-1-2518 AA genotype of the population in Suzhou may be a protective genotype of AP, while one with higher frequency of G allele is more likely to suffer from pancreatitis. But the genotype of AA and the frequency of G allele could not predict the risk of severe AP. No correlation is found between the IL-8-251 polymorphism and the liability of AP.

Urban Heat Island and Boundary Layer Structures under Hot Weather Synoptic Conditions:A Case Study of Suzhou City,China

A strong urban heat island （UHI） appeared in a hot weather episode in Suzhou City during the period from 25 July to 1 August 2007. This paper analyzes the urban heat island characteristics of Suzhou City under this hot weather episode. Both meteorological station observations and MODIS satellite observations show a strong urban heat island in this area. The maximum UHI intensity in this hot weather episode is 2.2℃, which is much greater than the summer average of 1.0℃ in this year and the 37–year （from 1970 to 2006） average of 0.35℃. The Weather Research and Forecasting （WRF） model simulation results demonstrate that the rapid urbanization processes in this area will enhance the UHI in intensity, horizontal distribution, and vertical extension. The UHI spatial distribution expands as the urban size increases. The vertical extension of UHI in the afternoon increases about 50 m higher under the year 2006 urban land cover than that under the 1986 urban land cover. The conversion from rural land use to urban land type also strengthens the local lake-land breeze circulations in this area and modifies the vertical wind speed field.

A survey of HIV infection and related high-risk factors among men who have sex with men in Suzhou,Jiangsu,China

A cross-sectional study using the snowball sampling method was conducted in May 2008 to investigate human immunodeficiency virus （HIV） infection status and related high risk factors among men who have sex with men （MSM） in Suzhou city of Jiangsu province. The researchers carried out a face-to-face questionnaire interview among MSM, and collected their blood samples to test for HIV and other sexually transmitted diseases （STDs）. Among the 280 respondents, 91.1% had homosexual acts in the past 6 months and 87.5% had multiple homosex- ual partners; 46.4% had heterosexual sex in the past 6 months and 33.1% had multiple heterosexual partners. The rate of continued condom use was 44.3% in homosexual sex in the past 6 months, while the rate in heterosexual sex was 33.9%. Laboratory test results showed that the prevalences of HIV and syphilis were 7.1% （20/280） and 15.0% （42/280）, respectively, but no HCV-positive person was found. In the multivariate logistic regression model, subjects with a monthly income of more than RMB $ 1,000 （OR=4.83,95% CI=1.44-16.22）, subjects who often went to bars for sexual partners （OR=2.25, 95%CI=1.21-4.20）, and subjects who had more than one sexual partner in the past 6 months （OR=0.49, 95%CI=0.25-0.97） and had sex with fixed sexual partners in the past 6 months （OR=0.42, 95%CI=0.25-0.75） were significantly associated with the rate of continued condom use in homosexual sex in the past 6 months. Unprotected sex and multiple sexual partners were more common among MSM in Suzhou city; furthermore, the prevalences of HIV infection and syphilis were relatively high. HIV preventive measures should be designed to address these risk factors and control the spread of HIV among MSM.

A Study on the Countermeasures of Modern Agricultural Development from a Perspective of E-commerce——A Case of Suzhou,China

Based on the fact that e-commerce promotes the development of modern agriculture,the paper summarizes the present situation of agri-cultural e-commerce through related materials.Taking Suzhou city as an example,the paper analyzes the features of modern agriculture.And themodern agriculture is characterized with apparent industrialization and scaled requirements,the branded and particular agriculture has more advan-tages,leisure agriculture is the very special one.In order to upgrade the degree of agricultural industrialization of Suzhou,promote the communica-tion of agricultural information and sales of products and lower the risks of agricultural production,the e-commerce countermeasures of modern agri-culture have been put forward.Firstly,strengthen the network construction of agricultural information.Secondly,carry out the agricultural e-com-merce business by B2B model.Thirdly,construct the e-commerce platform of leisure agriculture.Fourthly,construct the e-commerce platform ofmodern agriculture.Fifthly,perfect the logistics distribution network of agricultural products of Suzhou.The last point is to accelerate the e-com-merce training of farmers and the introduction of talents.

Planning and Design of Suzhou Sanjiaozui Wetland Park

Suzhou Sanjiaozui Wetland Park takes the protection of wetland eco-environment system as the core content,highlights regional characteristics of wetland landscapes,and designs leisure,entertainment,science popularization and education projects according to the functional orientations and actual conditions.The design ensures the effective protection and reasonable utilization of wetland resources.

Value and Development Countermeasures for Modern Agriculture in Suzhou

With advance of urbanization and industrialization, modern agricultural development in Chinas economic developed areas (CEDAs) is greatly restricted by traditional concept. To speed up the development of modern agriculture in CEDAs, this paper takes Suzhou City as an example from theories supporting modern agricultural development. It demonstrates agriculture in CEDAs plays an important role in adjusting supply of agricultural and sideline products, reserving rural labor employment, protecting ecological environment, increasing farmers income, and passing on agricultural culture. It contends that CEDAs should take reserving basic farmland as prerequisite; take adequate supply of primary agricultural products, protection of living environment, maintenance of agricultural landscape, and inheritance of farming culture as objectives; establish perfect modern agricultural system through firmly setting up modern agricultural value concept; increase local public finance input; increase agricultural functional value from technical and management levels, to realize increase of farmers income, promote sustainable development of agriculture, promote integrated urban and rural development, as well as harmonious development of human and nature.

Weed Occurrence and Chemical Control Test in Public Lawn of Suzhou Urban Area of China

Weed occurrence and damage in public green lawn of Suzhou urban area was assessed using five-grade weed visual survey method. The occurrence and damage of weeds in public green lawn of Suzhou City was very common. There were totally 67 species of weeds in green lawn, with the density of 6.5 plant/m^2, the relative abundance of 7.6%, the relative coverage of 10.3%, the relative height and the occurrence frequency of 100%, and the overall damage level of weeds was above the forth level. There were 14 species of major weeds causing damage, and 15 species of weeds were found to pose regional damage. Haloxyfop-R-methyl or Ping＇an-14 could be applied to control grassy weeds in clover lawns, with the herbicidal effect above 90%. MCPA, fluroxypyr, or clopyralid could be administra- ted alone to control broadleaf weeds in Cynodon dactylon or Festuca elata lawn, with the herbicidal effect above 85%. Since the weed species in weed communities of lawn were different, the types of herbicides should be targeted, or SD additives could be added to improve the herbicidal effect.

Structural Analysis of Green Infrastructure in Suzhou Dushu Lake Higher Education District

Green infrastructure (GI) is ecological supporting system for the sustainable development of urban construction,and plays an important role in promoting the urban ecological economic and social development.In this paper,Suzhou Dushu Lake Higher Education District is taken as an example,and landscape ecological resources in Dushu Lake Higher Education District are analyzed on the basis of field investigation.Combining with the relevant theory of green infrastructure,structure of GI in Suzhou Dushu Lake Higher Education District is analyzed and evaluated from hubs,links and sites,and the corresponding optimization strategy is put forward.

"Ten Thousand"Project to Cultivate the Professional Quality of Medical and Nursing Students:A Case Study of Suzhou Vocational and Technical College of Health

With the continuous development of the economy and the continuous improvement of people's requirements for the quality ofmedical care, medical staffs in hospitals need to have good professional qualities to better provide quality services for patients.Higher vocational colleges are an important training base for medical and nursing skilled personnel in China, but most medicaleducation focuses on students' professional knowledge and skills education, often neglecting the cultivation of professional quality.Taking Suzhou Vocational and Technical College of Health as an example, in this paper, a preliminary analysis of the currentsituation of training medical and nursing students' professional literacy in higher vocational colleges based on the "ten thousand"project was carried out, and its importance and significance discussed.

The influence of professional identity and ageism on turnover intention in nursing homes: a cross-sectional study from suzhou, China

Purpose:The aim of this study is to evaluate the influence of professional identity and ageism on turnover intention of nurses employed in nursing homes.Methods:From April to May 2019,a cross-sectional study was designed to investigate 410 nurses in nursing homes by random cluster sampling using a questionnaire.Descriptive analyses,t-tests,one-way ANOVA,Pearson’s correlation and multiple regression were performed for data analyses.Results:The scores of ageism,professional identity and turnover intention were57.91±11.06,106.93±16.22 and 15.98±3.47.Ageism was a positive predictor with turnover intention and professional identity was a negative predictor of turnover intention.Female,monthly income and the love for working in nursing homes impacted the turnover intention.Conclusions:Cultivating nurses’professional identity and reduce the ageism of nurses towards the elderly can reduce turnover intention.

食品中多环芳烃的来源、污染状况与检测分析

多环芳烃(polycyclic aromatic hydrocarbons,PAHs)是一类持久性的有机污染物,具有致癌、致畸、致突变等毒性,广泛存在于食品、特别是烟熏食品中,过量摄入将严重危害人体健康。许多国家通过制定严格的限量标准、加强检验检测等措施对食品中的PAHs进行防控,但随着工业化的快速发展,煤、石油等燃料的大量使用,食品中PAHs污染的问题依然突出,其在食品中仍普遍被检出,已成为影响食品安全的主要风险来源之一,关于食品中PAHs的污染来源、监测分析和检测技术等方面的研究也日益增多。本文概述了PAHs对农作物的影响,分析了食品中PAHs的主要来源和污染状况,从样品前处理和测定分析两个方面,综述了食品中PAHs的主要检测技术,评述了其优缺点,并提出了今后研究工作的建议,以期为食品中PAHs的监测分析、预防控制和深入研究提供参考。