城镇密集区节约型生态园林植物配置研究

以金堂公园东区方案设计为例,分析了当今节约型生态园林植物配置存在的问题,并从植物种类选择、植物分区配置、生物多样性、养护管理等方面探讨了节约型生态园林的植物配置。     

成都中心城区滨河绿道场景营造策略探析

当前,“场景营城”成为新时代城市高质量发展的重要指导理念,本研究结合公园城市建设理念,以成都中心城区锦江绿道段节点规划为例,通过“场景营城”的视角,从“生态场景、休闲场景、文化场景、消费场景”四方面分析总结绿道场景营造策略,探究成都公园城市的绿道场景表达,以期探索新时代城市中心城区绿道规划创新实践路径。     

浅析奥姆斯特德的理论内容与源头

大多数的文献认为,奥姆斯特德对波士顿公园系统的规划,是"绿道"思想的源头。早期的绿道规划以奥姆斯特德和他在1867年所完成的波士顿公园体系为代表,其形成的绿地系统长达25km,也被看作是第一条真正意义上的绿道。     

城市公园绿道景观规划设计探究

城市公园是城市建设中非常重要的组成部分,随着城市公园的免费开放,已不再是少数富人的私人花园,而成为市民户外休闲娱乐的重要场所之一,但随着公园与人们日常生活联系越来越紧密,公园游览的人数激增,使用需求也在发生着变化,城市公园已渐渐不能满足现代人们的活动需求,越来越迫切地需要提档升级,公园绿道景观需通过更有效的设计解决公园建设与使用的矛盾。公园绿道景观在一定程度上提升了居民的生活质量,探究了城市公园的绿道景观建设,为城市公园设计和建设提供有效的理论依据,极具现实意义。探讨了城市公园绿道景观规划设计,旨在帮助城市充分利用公园空间,有效改善环境质量,从而构建生态环保且可持续发展的城市。     

城市绿道生态设计手法的应用

城市绿道是指沿着河流、溪谷等自然景观和生态区域环境建立的人工廊道,城市绿道连接了自然景区、生态保护区、城市主要公园和城市生活区,人们在工作、生活之余可在城市绿道休闲、交往,此外,城市绿道对完善城市生态功能具有重要作用。研究了城市绿道生态设计手法应用,以期能够为城市绿道建设提供参考。     

城市绿道使用情况及现存问题——以深圳南山区城市绿道为例

城市绿道是一种处于城市当中人为介入使用的,但与自然相交融的一种自然廊道,它连接城市里的广场、公园、名胜古迹和自然风景区等。为了使城市绿道能够更加充分地被市民和旅游者使用,本文以深圳南山区城市绿道为例,通过多次多时段地调查南山区绿道的使用情况,且综合以上调查分析深圳南山区绿道的现存问题。通过对深圳南山区现存的问题分析提出一系列的改造意见,提及未来城市绿道的展望。     

河南周口市中心城区绿道规划设计

周口市中心城区绿道建设发展滞缓,市民对休闲、健身慢行系统的要求日益迫切,绿道规划设计及规范化建设尤其重要。文章以《周口市绿地系统规划2004-2020》为依托,结合中心城区实际,以沙河、颍河、贾鲁河为带状主线,贯穿绿道绿廊,串联各公园绿地,形成网格化生态绿道体系,并以各种园林植物营造生态良好、清新宜人的慢行长廊,让市民充分享受绿色福祉,迅速提升周口对外城市形象。     

基于绿道理论的西安大都市圈城市公园系统构建研究

在分析西安大都市圈建设背景及其城市绿地与公园建设现状的基础上,基于绿道理论探讨与城市公园系统融合的构想,提出绿道理论视角下的城市公园系统构建策略,在构建城市公园系统的同时,促进西安大都市圈历史文化遗址保护、风景旅游规划、城市老街巷的协同发展。     

浅析绿道文化性表达——以深圳市龙华区人才绿道为例

近年来,我国许多城市都将绿道作为城市建设与发展的重点,绿道空间增加了百姓的获得感和幸福感,不仅能诠释品质生活,更能体现城市温度。人才绿道文化性表达从突显人才精神的方向出发,使所展示的人才精神与自然绿道相融合,设计中避免枯燥乏味的政策标语,避免功绩化的展示方式,避免阅读式的科普方式,避免具象化的人才信息,以最自然的方式打造一条城市与自然交汇、科技与智能彰显、人才与文化融合,穿梭于山林中的人文艺术休闲带。以深圳市龙华区人才绿道为例,浅析绿道文化性表达方式,为其他公园、绿道突出文化性表达的项目提供新的思路与经验。     

天津经济技术开发区城市绿化植物配置调查与分析

通过对天津开发区东区具有代表性的开放公园、居住区花园和街头绿地植物配置的调查,从造景的特点去分析植物配置层次,总结出各类绿地的植物配置模式及配置种类,为今后开发区周边区域的绿化提供一定的借鉴.     

惠州市城市绿道启动段规划设计浅析

惠州市城市绿道启动段是《珠三角区域绿道网（惠州段）规划》编制的重要组成部分,是惠州市城市绿道建设的首条示范段,规划全线利用道路两侧的人行道、非机动车道和绿化用地建设绿道,并完善升级沿途绿道环境景观。该文以城市绿道建设背景为引线,分析了城市绿道的现状概况,规划了城市绿道的整体思路,部署了城市绿道的具体设计,着力将它打造成集休闲、健身、生态于一体的绿色通道,使之成为惠州市城市绿道建设崭新的亮点、焦点和示范点。     

Incorporating landscape diversity into greenway alignment planning

As an important factor of scenic quality and biodiversity along a greenway, landscape diversity has yet to receive as much attention as it deserves. In the practice of greenway alignment planning, it usually gives way to the primary consideration of land suitability. In this article, we aim to make up this missing link. Upon the new concepts and measurement of linear landscape diversity and cellular landscape diversity, we proposed greenway potential index incorporating land suitability and landscape diversity. The greenway potential index was combined with connectivity analysis to connect path between a future greenway’s origin and destination that meets both land suitability and landscape diversity requirements. Specially, with Wuchang (Wuhan City, China) as a case study area, we proposed three greenway alignment planning scenarios respectively according to the criteria of suitability, diversity and the synthesis of them. Markedly differences were revealed between the results of suitability greenways and diversity greenways. The results indicate that the tripartite model we proposed is capable of planning a connecting path between a future greenway’s origin and destination that not only meets land suitability requirements for greenway construction, but also incorporates as many landscape types of significant difference as possible.     

Measuring patterns and mechanism of greenway use – A case from Guangzhou,China

In the context of recent studies that have begun to establish a more quantifiable understanding of the use of urban greenways, this paper presents a preliminary investigation into the patterns in which a greenway is used and the mechanism behind the pattern of use of the greenway. Factors of the location, economic situation, environment and social background have been measured and analyzed in the use intensity model to interpret their impact on the use intensity of different sections of a greenway. The results suggest that use of the Waterfront Greenway in Guangzhou is highly impacted by population density, employment density, nearby service provision and the connectivity of the greenway to other parts of the city. In this case, the use intensity model with indicators such as location, economic, environmental and social factors has been shown to be applicable to the evaluation of the use of the greenways. Results from the case study suggest that providing greenways close to the residential zones, employment centers and key public services such as hospitals and schools will increase greenway use. The surrounding network system of a greenway must be carefully considered and designed to improve the linking of the greenway to other parts of the city, to increase the number of potential visitors to the greenway.     

城乡绿道建设探析——以广东珠三角绿道建设为例

绿道是源自欧美发达国家的先进理念,绿道建设基本不占用建设用地,符合建设低碳城市的发展要求。近几年绿道建设率先在我国广东珠三角地区开展,随后在全国各地快速发展起来,全面提升了城乡居民的生活质量,完善了城市功能,强化了地方风貌特征。文章在综合分析国内外绿道建设与研究相关文献的基础上,以广东珠三角绿道建设为例,着重对绿道建设的生态功能、游憩功能进行了探析,并针对当前绿道建设存在的问题提出建议。     

Casual evaluation of the effects of a large-scale greenway intervention on physical and mental health: A natural experimental study in China

Many cross-sectional studies have supported the health benefits of urban greenways. However, the causal relationship between urban greenway intervention and residents’ physical and mental health remains unclear. Furthermore, the potential dose-response effect by distance to a greenway intervention remains unknown. This study explored the impact of a large-scale urban greenway intervention (construction of a 102-km-long East Lake Greenway in Wuhan, China) on the health outcomes of residents by using a natural experimental research design. We collected data before and after the intervention (in 2016 and 2019, respectively) from 1,020 participants living within a 5-km street-network distance from the entrances of this greenway. The average age of the participants was approximately 50, and most of them were married. More than half of the participants were female, currently employed, and had received a college education or above. Mixed-effects difference-in-difference (DID) models were used while controlling for individual and neighbourhood covariates. The results showed that the East Lake Greenway had a positive effect on the self-reported mental health of residents who lived within 2 km, and these benefits decreased with distance. The physical health benefit was insignificant. To increase the health benefits of urban greenways, more effort should be made to improve the accessibility of greenways and the surrounding environment. We also advocate that future natural experiments should explore the distance-varying dose-response effect of green space interventions on health outcomes.     

居住区绿道网络与景观规划的融合

随着房地产业的发展,与之配套的园林环境也得到了长足的发展,居住区的园林环境也应转向关注人的生存状态和生活质量,重视居住区园林设计的生态性、娱乐性和文化性,使居住者生活在一个充满自然生机和精神文化的、人与自然和谐共存的健康住区中.现从绿色通道的概念和特征入手,通过对绿色通道在规划阶段中所扮演的角色提出了我国居住区景观规划中融合绿道网络思想的几点启示.     

Greenway service supply and public demand in Guangzhou city,China

Small-size green spaces contain convenient service capabilities for urban residents and satisfy the daily needs of citizens for high-quality ecological products. A greenway is a kind of linear green space, which can create a beautiful and livable environment in a high-density urban area. This study explored whether the services provided by the greenway can meet the daily needs of urban residents for green space in Guangzhou, a mega city in south China. Based on the Analytic Hierarchy Process (AHP) method and the entropy weight (EW) method, both the coupling coordination degree model and spatial autocorrelation analysis were adopted to quantify and determine the coordination degree of greenway service supply and public demand in Guangzhou. The results showed that the comprehensive score of the greenway service supply (GSS) subsystem and the public demand (PD) subsystem in Guangzhou was 0.3865 ± 0.08 and 0.3778 ± 0.03 (mean±s.e., n = 11), respectively. The GSS subsystem score was slightly higher than that of PD subsystem (P > 0.05), indicating that the two subsystems had no significant differences. The supply and demand subsystem of ten districts (excluding Conghua) in Guangzhou achieved different levels of coordination, and the average coupling coordination degree was 0.5885, suggesting that the districts were barely balanced at the city level. The Moran's I value was 0.580, indicating that the coupling coordination degree had significant positive global spatial autocorrelation and showed a spatial agglomeration effect. Furthermore, the local Moran’s I spatial autocorrelation showed that three districts (i.e., Yuexiu, Haizhu and Liwan) formed a high supply-high demand cluster and a spatial difference was detected when coupling the GSS and PD in Guangzhou. Therefore, we proposed the differentiated optimization strategies based on the results of the coupling coordination degree and the development status of each district and the entire city. This knowledge can better guide the subsequent construction and development of greenway in Guangzhou and may be useful for adjacent cities in Asia-Pacific region.     

The effects of urban greenway environment on recreational activities in tropical high-density Singapore: A computer vision approach

The urban greenway has been increasingly recognised as an important type of green infrastructure especially for land-scarce, densely-populated cities to efficiently provide their residents with continuous public spaces close to nature for recreation. Nevertheless, empirical studies on urban greenways and their recreational use rarely focus on high-density environment. Moreover, most research endeavours in this field are also largely confined to the subtropical climate, whereas much of the world’s future urban growth is projected to occur in the form of high-density mega-cities in much of tropical South and Southeast Asia. In view of these gaps, this study proposes a new approach that employs Computer Vision tools to examine the effects of the greenway’s physical environment on recreational activities, taking tropical Singapore as the test bed. The semantic segmentation model, PSPNet and the action detection model, ACAM are adapted and applied in conjunction with geographical information system tools to measure the greenway’s physical environment and people’s recreational activity at the human scale, and analyse their relationships. The result reveals a pattern that sees the clustering of different types of recreational activities at different time periods. It also reveals the relationships between recreational activities and specific environmental features, which were observed to have influenced the overall spatial distributions of the recreational activities. The finding also corroborates the design strategies for Singapore’s future urban greenways and offers a reference for engaging community groups to participate in the maintenance of urban greenways.     

绿道理念在风景名胜区规划中的探索——以辽宁鞍山市玉佛山风景名胜区为例

绿道是将分散的绿色空间进行联通,形成综合性的绿色网络通道,在环境保护、经济利益、美学上具有重要作用。如今,人们逐渐认识到绿道建设的重要性,开始进行绿道的建设与研究。针对玉佛山风景区内绿地之间相互独立、分散,缺少系统性的连接和更为宏观的有机规划的分析,对在风景区线性绿色开放空间的规划设计中如何贯彻绿道设计理念,实现生态、游憩及社会文化等功能的有机结合,做出有益探索。     

苹果退绿叶斑病毒组织印迹的免疫法检测与定位

用组织培养技术将富士苹果茎尖外植体建立在ＭＳ培养基中,形成试管苗。取４—６周龄的茎与愈伤组织,徒手切取约１ｍｍ厚的横切面,印迹在硝化纤维膜上。印迹组织经封闭后,与ＣＬＳＶ碱性磷酸酶标抗体反应。对反应结果进行显色。感染ＣＬＳＶ的印迹组织呈紫色反应,正常组织无显色反应。结果表明,该方法十分容易检测印迹组织中的ＣＬＳＶ。带毒愈伤组织较茎的显色反应敏感,显色反应时间仅为茎的一半（１５ｍｉｎ）。ＣＬＳＶ在愈伤组织中有两种分布情况：一是所有组织均有显色反应;二是呈不均匀分布。ＣＬＳＶ在茎组织中有三种分布情况：第一,除髓部外,表皮、皮层及维管系统中均有分布;第二,不均匀分布,ＣＬＳＶ集中分布于表度组织中,在皮层及韧皮部仅有少量分布;第三,“嵌合”分布,即同一种组织中部分组织带毒,部分为正常组织。