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.

The Landscape Design of Roads Afforestation of Jiangnan New District in Mudanjiang Municipality

Based on road characters in Jiangnan New District in Mudanjiang Municipality,four typical roads were selected to carry out road afforestation design with consideration of local building features and local vegetations,in order to integrate both of landscape effects,in terms of improving and beautifying city environment,and of ecological effects,such as filtering air,reducing temperature,increasing humidity,and reducing noise.

Composition of Garden Road System in Urban Park

Based on the idea of system,the paper had analyzed components of garden road system in urban park and their relations from the perspective of function,pattern and facility,and established framework of garden road system for guidance of garden road construction.After introduction of the connotation of garden road system,its attributes were summarized which were isolated elements,integrated collection,clear level and dynamic development;and its functional composition had been concluded from the aspects of practical function and social function.Practical functions contained traffic organization and guidance tour,space division and landscape composition,facility organization and habitat improvement.Social functions consisted of communication and education function.The pattern of garden road system had been introduced in terms of pattern elements,level structure and layout form.Facilities of garden road system had been classified into five categories covering rest facilities,ornamental facilities,light facilities,display facilities and service facilities.

Spatio-temporal Pattern of Ecosystem Pressure in Countries Along the Belt and Road: Combining Remote Sensing Data and Statistical Data

Building a Green Silk Road by integrating the Sustainable Development Goals(SDGs) is one of the Belt and Road Initiative(BRI) visions, but the BRI faces enormous challenge that is the conflict between economic development and ecological sustainability.Understanding the current scale and trend of the impact of human activities on the ecosystem is the preliminary work to ensure that human activities do not exceed the ecological carrying capacity under the BRI. This study evaluated the ecosystem pressure in countries along the Belt and Road(B&R) from 2000–2017 based on the supply-consumption balance relationship of ecological resources. Net primary productivity(NPP) is taken as the measure of ecological resources, and the supply level and consumption intensity of ecological resources is estimated based on remote sensing data and statistical data, respectively. Results show that thirteen countries with overconsumed ecological resources concentrated in the West Asia/Middle East. Although the intensity of the ecological resource consumption correlated with ecological resource endowments, the ecosystem pressure was determined by social development dependence on the ecological resources at the same ecological resource endowments level. Nearly 80% of countries along the B&R suffered from significantly increased(P < 0.05) ecosystem pressure during 2000–2017, since most of the countries along the B&R were developing countries,and their economic development was highly dependent on ecological resources. Some West Asia/Middle East countries successfully mitigated the ecosystem pressure by importing feed for livestock. Likewise, the Southeast Asian islands benefitted from the import of agricultural products. The results highlight that the BRI should reduce the dependence of social development demands on local ecological resources by international trade for ensuring the increasing ecosystem pressure trend within the ecological carrying capacity.

Ecological Landscape Road Design

With the Traveling Road in Ma＇anshan as an example, natural and human-made plants are both used to create a four-dimensional space considering plant layers and colors. Besides, the relationships between landscape and eco-environment, input and output, and construction and maintenance should be well coordinated in order to make sure sustainable development of road afforestation. On the other hand, landscaping of the Road as a whole should be guaranteed by coordinating functional regions along roads to make sure benign evolvement of urban greening system. Finally, the principle of people first ensures road landscaping to better serve the city socially, culturally and economically. The central greenbelt combines rule and nature and match shrub and arbor to shape a linear landscape sequence in order to maximize road functions and ecological benefits and build ecological landscape-oriented roads.

Maintenance Measures of Urban Road Landscaping

Functions of urban road greening were analyzed firstly,and then problems in the maintenance of urban road greening were discussed. Finally,measures to strengthen the maintenance of urban road greening were put forward,such as strictly controlling design and construction,strengthening greening supervision,enhancing greening maintenance and management and improving maintenance measures,and strengthening the prevention and control of pests and diseases in road greening.

Research on Micro Technology of Microclimate Environment in Urban Green Space Based on Humanization Concept

To create a comfortable microclimate environment,the design methods of green layout and green structure of four common forms of urban green space(park green space,road green space,waterfront open green space,and green space between houses)were discussed,and the modes"concentric three rings"and"three-layer sandwich cake",as well as the matching principles of three-dimensional green elements of trees and shrubs with lawn and hard matrix elements,were proposed.

The Safe Distance Between Road Lighting Fixtures and Street Trees

The road lighting system and the road greening system, which are mutually interrelated and independent, are two important parts in the urban road environment. Unreasonable road lighting is easy to induce light pollution and has a great negative impact on the physiology and growth of garden plants in the urban green space. In this paper, 21 kinds of common tree species in the urban green space of Zhengzhou were selected as the research object, and the photosynthetic physiological parameters of landscape trees under the LED light source were observed using LI-6400 Photosynthesis System. This paper attempted to find the critical point for initiating photosynthesis of different types of tree species under a certain light source and then calculated the safe distance between lighting fixtures and landscape trees. The results showed that road lighting interfered with the photosynthetic physiological activities of the surveyed trees, affecting the normal dormancy of the plants at night; the sensitivity of different tree species to night lighting was different, and there were some differences in the light compensation points, so the corresponding safe distance was also different. It is hoped that this study can provide a valuable reference and scientific basis for urban road greening and lighting design.

“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。