Diversity and Application of Herbaceous Flowers in Urban Road Greening in Hefei City

In urban road greening,the planting of ground cover flowers is essential,and herbaceous flowers are an important part.Through the investigation on the diversity of herbaceous flowers in urban road green spaces of Hefei City,the types,colors,application frequency and planting of herbaceous flowers in urban road green spaces were statistically analyzed,and the application forms of herbaceous flowers in the road greening of Hefei City were studied.The characteristics and problems of herbaceous flowers in the road greening of Hefei City were found,and some development suggestions were put forward.

Road Greenbelt Design of Zhangye City

Road greenbelt design is one of the important parts in urban road system.Zhangye City's road greenbelt design,relying on the general planning concept,namely,'water leads to green space,green space blends the city',emphasizes the harmonious relation between the greenbelt and ecological environment.The concept is adopted to guide the green design of the major roads,subsidiary roads,and trunk roads.It will offer some references for the similar engineering design.

On the Green Road

China’s automakers look to energy-savinghybrid vehicles as a hedge against high fuel prices china’s automotive manufacturersalready have won over some ofthe country’s most hard-nosedauto consumers to the nascenthybrid vehicles market—taxi drivers.

Effects of Light Source in Road Green Spaces on the Growth of Picea koraiensis in Harbin

With Picea koraiensis as the research object which have similar growth vigor in a same habitat, the photosynthetic rate, transpiration rate, chlorophyll content, weight of dry-matter and leaf color change of Picea koraiensis in different lighting conditions were determined. Environment without light sources was taken as the control group. The results showed that different light sources and different distances from light sources to plants had diversified impact on the photosynthetic physiology of Picea koraiensis. Among these different color lights, green light had the least influence on Picea koraiensis, yellow light and purple light had greater influence.

The road map for green development of Western China

China has made some remarkable achievements in sustainable development,but the constant deterioration of the overall trend of the environment has not yet been effectively curbed.To achieve the goal of sustainable development,we must first ensure coordination and coherence of national development goals in different areas and adhere to green development road.To achieve the objectives related to green development,and to clarify the direction of green development in the next 20years,a road map is needed to guide and coordinate the process.This paper describes the concept of the green development road map,introduces a green development road map for the western region,and further elaborates it The road map clarifies the objectives and guiding principles of green development in the western region,points the areas that deserve more concern and institutional innovation,and builds a green development monitoring and evaluation(M&E)framework.Finally,the paper provides corresponding policy recommendations based on the established road map.

Study on Road Greening in the Main Urban Area of Chongqing City Based on Plant Diversity

The greening situation of 242 road greenbelts in 7 administrative regions in the main urban city of Chongqing City was investigated by field survey, and the plant composition, application frequency, species richness and diversity of plants used for road greening in the main urban area were analyzed. The results show that there were 105 species of plants used for road greening(not including seasonal flowers displayed temporarily) in the main urban area of Chongqing City, belonging to 80 genera, 47 families. Among them, there were 95 species of woody plants and 10 species of perennial herbs, accounting for 90.47% and 9.53% of the total number respectively. Some suggestions were put forward according to the current situation and problems of road greening in the main urban area of Chongqing City.

Functions, Selection and Collocation of Greening Plants in the Construction of Ecological Roads

From the perspective of ecological construction of roads, the reduction and purifying effects of greening plants on noise, raising dust and automobile exhaust, selection principles of arbors, shrubs, ground cover plants and herbaceous fl owers, and the methods of collocating arbors shrubs and grass in the construction of ecological roads were discussed in this study.

Green Road Construction Technologies in Guangzhou

Total road pavement in Guangzhou reaches 77×10~6m^2.Its huge maintenance and potential rehabilitation calls for a green road system.This paper presents a discussion,first about green road construction technologies together with their applications and development like reclaimed asphalt pavement,rubberized asphalt pavement,and warm mix asphalt; and then,about the key obstacles for promotion and activities,primarily for green road promotion,in the perspectives of the current technical and application situations in China and separately in Guangzhou.Based on environmental and conditional analysis,as well as a development expectation from an industrial viewpoint,this paper creates a development trend of green road technologies.

Integrating Green Tourism of Jiangxi Province into “One Belt and One Road” Strategy

"One Belt and One Road" is a signifi cant move of China to further deepen reform and opening up and improve economic development, and also a key working point of the future national development. This paper, on the basis of study on "One Belt and One Road" strategy and current situation of green tourism in Jiangxi, proposed that green tourism in Jiangxi could integrate into the construction of "One Belt and One Road" from the four perspectives of information flow, cultural flow, traffic flow and regional collaboration flow, which contributed to the implementation of national strategies, promoted green tourism development of Jiangxi, and showed the "exceptionally beautiful scenes" of Jiangxi.

“一带一路”倡议对绿色产品贸易的影响——基于双重机器学习方法的分析

推动绿色“一带一路”建设是“一带一路”倡议的重要内容,更是实现“双碳”目标的重要载体。本文通过匹配法国国际经济研究中心(CEPII)世界贸易数据库、世界银行数据库等,运用双重机器学习方法分析了“一带一路”倡议实施对沿线国家绿色产品贸易的影响作用。研究发现,“一带一路”显著促进了沿线各国绿色产品贸易发展;该效应具有异质性,相比较而言,对经济增速较低、创业环境优越、法治环境好、海上丝绸之路以及与中国邻近的沿线国家绿色产品贸易作用更显著;该效应发挥作用的机制为政策沟通和民心相通的“软联通”,以及设施联通、贸易畅通和资金融通的“硬联通”;拓展分析表明,注意力配置和制度相近会扩大“一带一路”倡议对沿线国家绿色产品贸易的促进效应,且这种作用在绿色产品出口和进口方面均显著为正。此外,本文还特别发现“一带一路”倡议显著促进了沿线国家绿色产品贸易网络地位的提升。基于此,本文提出如下对策:一是优化完善绿色“一带一路”的顶层设计;二是着力发挥“软联通”和“硬联通”的积极作用;三是制定差异化绿色产品贸易发展策略。

中国在全球气候治理领域的战略传播:路径、内容及影响

作为向国际社会展示气候政策、承诺和成就的重要传播策略,战略传播在提升中国气候政策国际影响力以及塑造中国治理形象方面发挥了重要作用。借助组织传播、人际传播、媒介传播等多元的战略传播路径,中国在全球气候治理领域的政策、立场及治理成效得到了全方位、立体化的对外宣示。这种宣示既很好地传递了中国“天人合一”的气候治理理念,也积极引导了全球气候治理议程。以绿色“一带一路”的战略传播为例,它不仅展示了中国在全球气候治理和可持续发展方面的引导力,也体现了中国在国际合作、公众参与和应对全球挑战方面的努力。实践表明,中国的气候治理及战略传播经验可以帮助发展中国家更好地应对气候变化挑战,同时也在全球气候治理进程中发出自己的声音。

“公转铁”政策对京津冀绿色物流效率的影响

为落实绿色发展理念,促进京津冀物流业高质量发展,有效发挥“公转铁”政策对绿色物流效率的提升效应,在系统梳理“公转铁”政策促进绿色物流效率理论机制的基础上,用2010—2020年京津冀地区面板数据,通过双重差分模型、广义双重差分模型和中介效应模型,研究“公转铁”政策对绿色物流效率的促进效应以及作用机制。研究发现,“公转铁”政策在京津冀地区的实施对提升绿色物流效率具有显著的促进效应,并且该效应在经过稳健性检验后依旧成立;政策实施力度对绿色物流效率存在显著的影响,绿色物流效率随着政策实施力度增强而不断提升;“公转铁”政策通过改变物流企业的运输方式偏好,增强铁路运输对公路运输的替代作用,提升绿色物流效率;绿色物流效率提升还受到铁路设施水平、区域建设水平、经济水平、创新能力等多种因素的影响。因此,京津冀绿色物流效率提升,应该考虑多种因素的综合影响,以多层次和系统性支撑政策推动“公转铁”政策的实施;以改变承担社会物流活动企业运输偏好为导向;充分考虑当地内外部环境,结合产业结构、创新能力等因素调整“公转铁”政策实施力度。

数字贸易网络对绿色经济发展的影响研究——基于“一带一路”沿线国家的实证分析

近些年,绿色经济发展已经成为共建“一带一路”的主题与共识,数字贸易为“一带一路”沿线国家的经济高质量发展提供了强劲动力。基于2007—2021年“一带一路”沿线38个国家双边数字贸易数据,采用社会网络分析法构建数字贸易网络模型,并对样本国家绿色经济发展水平测算,实证检验一国数字贸易网络对绿色经济发展的影响。结果表明:(1)数字贸易网络对绿色经济发展具有积极正向影响,一国数字贸易网络中心性的提升及网络联系强度的增大有利于绿色经济发展;(2)数字贸易网络特征对绿色经济发展的影响存在数字基础设施水平的门槛效应。网络中心性对绿色经济发展的影响存在双重门槛;(3)数字贸易网络联系强度对绿色经济发展的影响存在单一门槛,只有达到一定的数字基础设施水平,一国数字贸易网络联系强度对于绿色经济发展的促进作用才会显现。

考虑碳排放的市政道路绿色施工评价研究

【目的】有效减少施工过程中的碳排放量,优选出绿色施工水平较高的市政道路建造方案,提升市政道路科技创新和绿色建造水平。【方法】从碳减排的角度出发,针对市政道路绿色施工综合评价问题,结合市政道路施工的特点,建立了市政道路绿色施工评价体系和标准,构建了基于组合赋权的灰色关联模型,在综合主、客观权重基础上进一步运用灰色关联法计算各指标和各路段施工方案的灰色关联度,分析比较绿色施工水平。【结果】该研究建立的市政道路绿色施工评价体系具有适用性,通过长沙市某市政道路各路段的施工建造方案对所提出的模型进行了验证,其结果与实际情况相符,据此确定了一套合理的市政道路绿色施工方案。【结论】基于组合赋权的灰色关联理论在市政道路绿色施工评价中的应用具有可行性和科学性,并为市政道路绿色施工方案设计提供了参考依据。

不同土壤对下凹式绿地对城市道路中雨水的调蓄拦污效果分析

本文研究了红壤土、黄棕壤土和黑壤土三组实验装置分别对COD(化学需氧量)、NH4+-N(总氮)、PO43--P(总磷)、和SS(总悬浮物)的去除效果,实验结果表明:红壤土对COD和NH4+-N的处理效果稍优于其他两种土壤,而对于PO43--P的去除,三种土壤之间并没有明显的区别,黄棕壤土对SS去除效果稍高,为88.79%。由此可以得出结论:决定下凹式绿地土壤类型的影响因素并非取决于土壤自身的拦污程度,而是工程施工时土壤取用的便利性和土壤对绿地植物生长的适宜性。

基于生态恢复的西南山区高速公路路域景观设计——以巫镇高速公路为例

我国西南山区高速公路普遍存在桥隧比大,土建创面大,视觉感受差,景观不连续等问题。巫镇高速线位穿山跨沟,多为桥隧相接和隧道群,针对巫镇高速沿线现状,中分带、隧道、互通、路侧边坡特点,提出相应的生态恢复方案,并采用自然恢复、人工种植、生态袋绿化+喷播有机材绿化等方法,在满足车辆顺畅、安全通行的基本要求上,运用接近自然、无强烈人工痕迹的绿化方式来缓解公路与环境的冲突,保护和恢复路域生态自然,达到自然景观与再造景观的和谐统一。

基于云物元的寒区公路绿色施工评价体系研究

脆弱性冻土生态环境与寒区公路建设存在复杂的博弈关系,二者相互制约、相互影响,为践行绿色低碳公路的战略目标,科学构建一套寒区公路绿色施工评价体系,是十分迫切且重要的。鉴于此,文章基于文献调查法和德尔菲法进行寒区公路绿色施工评价指标体系的构建,运用改进的三标度层次分析法对评价指标权重进行确定,将云模型引入到物元可拓评价模型,建立各评价指标正态云评价语言云参数,实现模糊性指标评价语言从定性到定量的转换,通过MATLAB多次仿真计算评价指标与各评价等级间隶属度,运用最大隶属度原则判断寒区公路绿色施工评价等级。对黑龙江省多年冻土区呼玛至十八站段公路项目进行绿色施工评价,得到“Ⅳ”级评价结果,绿色施工发展态势较好。对比模型计算结果与项目实际绿色施工情况得,绿色施工模型评价结果与项目绿色施工实际开展状况相吻合,证实了建立的指标体系与评价模型的科学合理性,可为同类寒区公路项目开展绿色施工评价提供一定的借鉴。

数据驱动道路绿化:基于街景的多维品质评估

旨在通过人本视角和品质提升来改善城市设计和政策中的道路绿化品质。选取苏州主城区48个街道,采用道路平均NDVI、PGVI及日常活动网络可达性3个指标进行城市道路绿化品质的多维度评估,并筛选具有高网络可达性且低绿量的道路。进一步对3类低绿化品质道路进行绿化布局与设计成因分析。结果表明,通过提高道路邻近绿量和通透性、增加人行道和车道的绿化面积、转换视角创造立体绿化空间等措施,可以有效提高城市道路绿化品质。研究成果可为城市绿化规划设计提供有益参考。

基于DPSIR-GEES的寒区改扩建绿色公路评价研究——以黑龙江省为例

以黑龙江省改扩建公路作为研究对象,构立DPSIR-GEES模型,从公路建设与政府、经济、环境、社会关系的角度,建立寒区改扩建绿色公路评价研究体系.通过SPSS和MATLAB软件,运用博弈论组合理论将变异系数法和熵权法求出的权重组合综合赋权.采用障碍度模型进行横向分析,由逼近理想值排序法模型纵向分析.最终得到障碍度最大的5个指标因子:旅游服务、线性规划、土体冻融侵蚀、人性化、信息运行和管理服务.公路项目总体绿色度水平:丹东—阿勒泰公路呼十、黑卧、逊黑工程段改扩建绿色度水平较高,评定等级为“绿色”,前锋农场—嫩江公路工程段在建设过程中绿色度有所欠缺,评定等级为“浅绿”.

绿色生态理念下城市道路设计方法研究

随着“双碳”目标的提出,在绿色生态视角下进行道路设计成为必然。文章以实际项目为例,介绍了项目概况,从生态体系、道路生态改造、断面和路面设计等方面探讨了城市道路设计中绿色生态理念的应用,以期为相关研究提供参考。