Study on Conceptual Planning of Group Landscapes in Urban Core Areas—A Case Study of Conceptual Landscape Planning of the Core Area in Shuangsong Group,Wanzhou District of Chongqing City,China

The planning site was divided into a spatial structure of"one center,one corridor,two axes,two belts and three communities"and traffic system designed to a 3-grade road system of"artery,secondary artery and by-pass".Meanwhile,a 3-ring structure of the planning site was constructed:diffusion waterfront landscape belt,waterfront pathway and core eco-green island.Finally,the planning concepts for major ecological constructions were given.This study tried to explore the group eco-landscape pattern in urban core areas so as to provide a strategic instruction for the regional sustainable development.

Relationship between NO_2 Concentration and Meteorological Factors in the Urban Area of Wanzhou District

Firstly,the daily variations of NO2 concentration in the urban area of Wanzhou in 2012 were analyzed,and then the relationship between NO2 concentration and meteorological factors（ precipitation,atmospheric pressure,wind speed,temperature,relative humidity and sunshine hours） was discussed. Finally,the multiple linear regression equation was established to predict NO2 concentration. The results showed that NO2 concentration in the urban area of Wanzhou did not exceed 80 μg /m3in most days from January 1 to December 31 in 2012. Among the six meteorological factors,NO2 concentration correlated significantly with three meteorological factors,that is,NO2 concentration correlated negatively with atmospheric pressure and wind speed but positively with relative humidity. NO2 concentration in the urban area of Wanzhou could be predicted using the multiple linear regression model. According to the rose diagram of wind directions,the wind blowing from the NNW was dominant in the urban area of Wanzhou.

Composition and Analysis of Urban Skyline in Lakefront Region of Wanzhou District in Chongqing Municipality

Through field investigation in Wanzhou District, Chongqing Municipality, this paper analyzed current situation of city skyline in the lakefront region, proposed the existing problems and gave corresponding approaches for improvement.

Primary Investigations on Yangtze River Bank Slope Stability in Wanzhou for the Three Gorges Reservoir Project

This paper investigates the main factors contributing to bank slope failures, such as the structure of rock and soil, water level change, bank slope gradient, vegetation, weathering and human activities. Based on these investigations, the bank slope failure models are analyzed. The stability of bank slopes in Wanzhou is investigated using geological surveying, 2D resistivity imaging surveying, excavated trenches and other methods. Finally, the disasters of bank slope failures in Wanzhou were investigated in detail. The results show that instability problems might occur in 60.38 km of bank slopes when the water level rises to 175 m. It is suggested that 37.8 km of unstable bank slopes should be stabilized, and 14.2 km of unstable banks should be moved or avoided after further geological surveying and reconnaissance. These results provide scientific basis and reliable data for the government to develop the third geodisaster prevention plan for the Three Gorges reservoir.

Study on Optimization of Tourism Resources in Wanzhou District,Chongqing Municipality Based on Eco-conserving Division

On the basis of analyzing current situation of tourism resources in ecological conservation zones of Wanzhou District, this study explored causes of the tourism resource problems, and proposed corresponding suggestions for the optimization of local tourism resources against the background of ecological civilization construction and integrated multiple planning.

Simulation Analysis on Navigation Indexes of Wanzhou Yangtze River Highway Bridge after the Anti-Collision Device Construction by Ship Model Test

After the anti-collision facility construction of Wanzhou Yangtze River Highway Bridge, the conditions of navigation in bridge area are complex. In order to study the navigation conditions of the reach and layout optimization measures, ensuring the safety of the ship navigation test has been carried out on the ship model navigation in the bridge area. According to the requirements of the maximum safety limit of the ship model test, the paper puts forward the best route, the control method and the difficulty of navigation through the analysis of the test results, and finally gives the recommendations and suggestions.

基于GC-IMS分析泡椒味万州烤鱼堂食过程的“三层次”风味变化

为分析泡椒味万州烤鱼堂食过程中风味的变化,采用气相色谱-离子迁移谱(GC-IMS)技术结合偏最小二乘判别分析(PLS-DA)探究其堂食过程中3个阶段的整体风味差异性及关键的风味标志物。结果显示:在3个阶段中共筛选出65种差异性风味成分,基于这些成分的PLS-DA模型能够有效区分各阶段的风味,呈现“三层次”风味分明的特点;变量投影重要性分析表明,乙酸异戊酯、乙酸芳樟酯、香茅醛(D)、2-乙基-5-甲基吡嗪、丁酸丁酯、己醇、2,6-二甲基吡啶、2-丁醇、1-辛烯-3-醇、2-庚醇、丁酸异丁酯、乙酸乙酯、2-甲基-2-戊烯醛、3-蒈烯、2,5-二甲基吡嗪共15种风味成分是区分泡椒味万州烤鱼堂食过程中“三层次”风味的潜在风味标志物。该研究深入挖掘万州烤鱼风味特征,为提升万州烤鱼品牌价值和制定万州烤鱼风味标准提供了有力的支持。

三峡库区万州古红桔产业现状及高质量发展对策

为了破解万州古红桔产业化发展难题,调研组以万州区为例,通过运用文献调查法、问卷法、访谈法相结合的方式对万州古红桔产业发展现状进行了专项调查。对调查结果进行系统剖析,总结万州古红桔产业发展的现状和存在的问题,并从提质增效、产学研合作、三产融合、品牌培育、人才和社会化服务方面提出助推其高质量发展的建议。

基于定量描述分析法评价万州不同品种绿茶香气和滋味特征

【目的】对万州区不同品种绿茶的香气和滋味进行分析与评价,为探索万州绿茶感官特征、筛选优质绿茶适制品种、工艺优化及产品研发等提供参考。【方法】运用定量描述分析法对万州6个品种共13个绿茶样品的香气和滋味进行了分析评价。通过Panel Check软件检验了评价员区分样品能力、重复性和评价小组感官描述的一致性,以主成分分析结合差异分析方法对13个绿茶样品的香气和滋味特征进行了研究。【结果】‘安吉白茶’和‘中黄1号’品种所制绿茶的感官属性表现最好,滋味甘鲜,主显栗香、嫩香、土豆香;而‘福选9号’和‘福鼎大白茶’品种所制绿茶主显清香和花香;部分川中小叶群体种资源所制绿茶在鲜味和甜味表现较好。【结论】通过对万州不同绿茶香气和滋味特征的分析与评价,梳理了特定品种绿茶的感官特征,认为万州这6个品种绿茶的感官属性与其品种关系密切。

逆流挽舟法论治溃疡性结肠炎

溃疡性结肠炎是一种常见疾病,但因其病程迁延难愈且病机仍未明确而被世界卫生组织列为难治性疾病之一。溃疡性结肠炎可对患者身心及生活造成较大影响。目前西医治疗主要以药物消炎、缓解症状等为主,但均不宜长久使用。清代喻嘉言创立的“逆流挽舟”治法对改善溃疡性结肠炎症状有明显效果,但现代临床使用较少,故笔者对“逆流挽舟”法的起源思想及其作用机制作一论述,以期为临床医师提供更多溃疡性结肠炎中医辨证论治思路。

基于Budyko假设的三峡库区蓄水前后径流变化归因识别

[目的]径流在气候变化和人类活动的共同影响下发生变化,探索径流时空演变规律及其原因对水库科学调度及水资源的可持续利用具有重要指导意义。[方法]基于三峡库区“腹心”万州段1960-2019年的气象水文数据,首先采用Mann-Kendall趋势检验、Pettitt突变分析和小波分析对三峡库区蓄水前后径流的时空演变特征进行分析,最后采用2种Budyko水热耦合平衡方程,定量计算气候变化和人类活动对径流变化的影响率。[结果](1)研究区年径流量呈显著下降趋势(|z|>2.58),2003年(三峡库区蓄水年)出现拐点,随后年内分配更加均匀。(2)与蓄水前相比较,蓄水后气候变化和人类活动对研究区年径流减少的贡献率为27.9%~29.2%和70.8%~72.1%。(3)人类活动主要通过改变土地利用类型和建设水利工程影响流域年径流量,林地、建设用地面积的增加和三峡库区的建设影响研究区水文循环过程使年径流量减少。[结论]研究结果定量描述人类活动对径流变化的影响,对下一阶段三峡库区水资源管理提供理论支撑。

基于多源数据的山地县域绿色基础设施网络构建及修复策略——以重庆市万州区为例

以重庆市万州区为研究区,以生物多样性为切入点,综合运用形态学空间格局分析(MSPA)和最小累积阻力模型(MCR),识别GI网络中心(hubs)和连接廊道(links),结合图论、电路理论及几何形态学划分重要性等级,提取廊道上的生态夹点区域,并针对山地城镇的典型生态问题提出对应的精细化保护与修复策略。结果表明:1)万州区内网络中心42处,总面积996.35 km^(2),占研究区总面积的28.83%,总体“东密西疏”,形成“一屏三带、散点分布”的格局;2)连接廊道80条,总长度292.97 km,呈现“东强西弱、东短西长”的分布特征;3)生态夹点142处,占廊道长度的9.60%,主要分布于东部。据此,将网络中心分为连绵涵养区、重点保护区和独立修复区制定分区修复策略;将连接廊道分为关键廊道、重要廊道和一般廊道制定分级修复策略;对不同用地类型组合方式的生态夹点区域制定精准修复策略。

李白与万州:研究现状与拓展路径

至迟在宋代典籍中,李白曾读书于万州太白岩就有了记载。与之相关的是,万州本地有许多与李白有关的文化遗迹,许多文人留下了关于李白与万州的诗文。但学界对李白在万州的研究,尚存在文献资料发掘整理有限、研究时间短、研究对象单一等缺失。为此,有必要全面搜集整理散佚的相关文献史料以形成资料汇编,进一步考察李白在万州的游踪,研究万州传说中的李白遗迹,弘扬与传承李白带给万州的历史文化遗产。

2009—2022年重庆市万州区空气质量变化趋势研究

了解重庆市万州区空气质量的变化,对于三峡库区区域生态环境保护有积极意义。通过对重庆市万州区2009—2022年PM10、SO2、NO2浓度及2017—2022年PM2.5、O3、CO浓度的实测资料进行MannKendall非参数检验,分析了长时间序列空气质量变化特征。结果表明:PM10、PM2.5、SO2、CO浓度呈显著下降趋势,O3、NO2浓度变化趋势不显著;[NO2]/[SO2]比呈显著上升趋势,大气氧化性增强,表明应强化NO2、臭氧前体物的防控。PM2.5是空气污染主要因子,以冬秋季为甚;次之为O3,以夏春季影响明显。

万州与李白:研究困局与突围路径

万州自古便是长江流域重要的港口城市,与诗仙李白有着深厚的历史渊源。对李白与万州关系的考辨而言,学者们根据李白的游踪及其诗文,推测出李白曾在青年时期、流放夜郎时期以及遇赦出峡之际经过万州,具有一定的合理性。对于李白是否曾读书于万州太白岩,历来的观点颇为复杂,但不认可者居多,因而将李白读书于万州太白岩视为传说或许更为妥当。关于万州与李白之关系的两大问题的梳考,揭示了万州与原型李白关系研究的困局所在。而突围路径是尊重万州“历史原型”类李白、“诗艺造型”类李白的材料相对薄弱的实际情况,偏重于对“传说特型”类李白的梳理、考辨与价值的辨析。

万州区不同茎瘤芥(榨菜)新品种比较试验

为筛选出适合重庆万州区栽培的茎瘤芥(榨菜)新品种,以当地主栽品种涪杂2号为对照(CK),对6个新品种进行比较试验。结果表明,早圆100天早熟,菜形椭圆,茎叶比值高,瘤茎产量显著优于CK,经济效益高,适合万州区早市鲜菜栽培及大面积推广示范;涪杂5号田间表现良好,叶片产量低于CK,但瘤茎产量高于CK,经济效益良好,较适宜当地种植。

Golden Dragon to Launch a RMB 300 Million Copper Trading Project After Settling Its 80,000-Ton Precise Copper Tube Project In Wanzhou

On the morning of April 19,Golden Dragon Precise Copper Tube Group Inc.held a groundbreaking ceremony for its 80,000-ton precise copper tube project in the Wenzhou Economic and Technological Development Zone.It’s learned that Golden Dragon Group’s Wanzhou precision copper tube project

渗流—织脉:山地城市更新的绿色城市设计路径

【目的】存量更新背景下基于绿色城市设计方法对山地城市进行更新探索,对实现城市与自然协同共生具有理论意义与实践价值。【方法】针对自然要素在山地城市复杂条件下呈现的动态特征,引入渗流力学理论,数字化识别地形、水体、生物3类流要素,解析其内在关联和影响机制,顺应渗流规律提出“织脉”设计路径。【结果】以重庆万州区为证,研究发现水体流与城市界面高密粘连,地形流、水体流在城市颗粒中渗透率低,水体流的孔隙阻力存在季相变化,通过扩大蓝绿空间孔隙度、增加滨水空间浸润区等措施可以提升城市渗透率。【结论】基于渗流力学理论,解释山地城市与自然环境的互动规律,顺应规律发掘设计路径,为山地城市生态空间因地制宜规划提供绿色城市设计方法的思路参考。

场景化引导下的万州大社区建设标准研究

立足万州山地高密城市特点及其转型发展需求,提出了“大社区建设”的基本内涵与建设理念;并借鉴当今国内外社区建设的案例实践,针对万州旧城更新与社区建设面临的“邻里关系隔离、土地利用低效、景观风貌特色不足”等突出问题,最终提出了营建“新形态、新邻里、新服务、新治理”四大场景为核心打造万州大社区新生活愿景的目标驱动下引导社区服务综合体的建设标准,并结合万州空间规划给出了大社区建设行动计划,以满足新形势下万州城市新的空间、产业、景观、治理为一体的社区建设愿景。

重庆市万州植烟区土壤养分现状及施肥区划

万州烟田土壤养分空间变异较大,且缺乏系统研究,制约了万州烟业的发展.为了全面掌握万州区烟田土壤养分现状,2021年选取该区5个乡镇中具有代表性的种植单元土样进行分析,得出该区土壤养分现状,并进行施肥区划及提出相应的施肥方案.结果表明,万州植烟区土壤pH平均值为5.32,75%的土壤呈酸性,酸化较为严重.万州植烟区土壤有机质、碱解氮、有效磷、速效钾、交换性钙和交换性镁适宜的比例分别为30.4%,52.7%,27.6%,25.9%,32.1%和38.7%,从当前烟田土壤养分情况看,土壤有机质较为丰富,碱解氮供应能力良好,有效磷总体适中,速效钾整体偏高.万州植烟区土壤有效铁、有效锰较高,有效锌大多处于适宜范围,土壤有效铜、有效硼、有效钼和水溶性氯缺乏,且各元素空间分布不均.万州植烟区土壤pH值影响土壤交换性钙、镁,进而显著影响土壤阳离子交换量.重庆市万州植烟区应采取“降酸、增碳氮、调磷、减钾、补微”的措施,以土壤养分测定结果为依据,根据施肥区划图,在施肥过程中结合具体区域与地块,科学合理地提出各区域的施肥管理方案,为万州区烤烟产业持续发展提供科学参考方案.