城市生产绿地规划和建设若干问题探析

在阐述生产绿地相关概念的基础上,从城市绿地规划和经营管理两个层面对城市生产绿地规划和建设的现状、存在问题等进行分析,并结合重庆市荣昌县县城绿地系统规划案例,试图提出较为科学的生产绿地布置原则与对策。     

天津市宁河城区绿地系统规划

在天津宁河县城区总体规划的前提下,根据宁河县城区的现状进行的绿地系统规划,从指导思想、目标、原则、范围及绿地的总体布局和分项规划等方面对该规划进行介绍。该规划不仅可以规范和指导宁河县城区的绿地环境建设、提高城市环境质量,而且还是实现宁河建设绿色宜居城区目标的重要保障。     

小城镇园林绿地系统规划

随着我国经济的快速发展,我国的城市化进程也在不断加快。本文将从小城镇园林绿地建设的意义、现状等多个方面对小城镇园林绿地系统规划进行分析。     

城市园林绿地规划的相关探讨

城市园林建设中绿地规划是其关键组成部分,通过绿地规划能有效改善城市整体环境,提升城市的环境品质及人们生活舒适度,是关乎人们健康生活的重要工作。本文阐述了城市园林绿地规划的内涵与原则,分析了城市园林绿地规划的主要目标,并就城市园林绿地规划方案做了重要论述。     

做好城市园林绿地规划的几点思考

现代园林绿地规划是现代城市生态建设的战略任务内容之一。主要从园林绿地在城市发展的角度上作以简述,同时明确了园林绿地对城市生态建设的的意义与作用,提出了园林绿地规划的实践原则,以及对不同的城市园林绿地建设类型提出了相关设计思路与建议。     

绿地规划红线内障碍物建筑的实际操作与研究

为进一步推进上海公园绿地建设,按照上级部门要求的既定发展目标,加快进入施工建设阶段,确保各项绿化工程准时完工。然而通过长期研究发现,已在绿地规划红线内的建筑拆除与搬迁成为绿地建设及时推进的拦路虎,是当今城市绿地建设的重要攻关课题。分析绿地障碍物的原因,提出了绿地规划红线内建筑拆除与搬迁的措施方法与建议思路。     

现代城市绿道规划建设探究

随着社会的不断发展,人们对于城市绿化建设要求越来越高,城市绿道应运而生。通过对珠三角绿道规划体系的研究,从实际情况出发,介绍现代城市绿道的概念、类型、功能以及规划结构,并探讨绿地规划建设的意义。     

城市绿地系统的生态规划

从二十世纪八十年代开始.景观生态学理论迅速发展起来,并通过景观生态学与规划科学的结合.诞生了景观生态规划理论,以信息社会为背景的景观生态规划,是在将规划设计对象视为一个整体生态系统进行分析评价.对景观的各元素进行安排和协调.本文应用景观生态规划的理论.来研究城市绿地的规划与设计方法,并提出我国目前绿地建设中存在的问题和解决途径.     

海绵城市对城市绿地规划建设的影响探析

根据我国国情和城市水环境、雨水系统管理等问题,提出构建海绵城市体系——低影响开发雨水系统。城市绿地由于对雨水具有鲜明的截留、渗透、存储及净化等功能,使其成为实现海绵城市目标的载体之一。在中国掀起海绵城市建设实践的浪潮推动下,势必对城市绿地规划建设产生深远影响。文章围绕海绵城市建设特征、海绵城市与城市绿地的关系及海绵城市对城市绿地规划建设的影响等进行探讨,重点针对海绵城市对城市绿地规划建设的影响,从绿地规划观念、绿地类型、绿地功能、绿地系统整体布局结构、绿地规划指标、绿地建设技术及规划规范和标准等方面提出见解。     

城市绿地彩化规划初探——以赣州市中心城区绿地彩化规划为例

建设城市彩色生态景观,能进一步丰富城市园林绿地系统的植物多样性和色彩多样性,提升园林绿化植物色彩和形态的审美性,给城市带来充满活力的新形象,创造优美的人居环境。我国的城市绿化建设,普遍正面临着从"绿化"到"彩化"的转型,以赣州市彩化规划为例,从顶层设计层面指导彩化规划建设,填补绿地彩量控制的空白,为城市绿化彩化建设提供借鉴。     

例释风景园林在农业规划中不可或缺的作用

从风景园林学专业与农业规划关联程度切题,以农业园区规划案例的形式,剖析风景园林在农业规划中的精彩演绎,阐述风景园林学在农业规划中不可或缺的作用。     

风景名胜区控制性详细规划编制方法初探

随着旅游业的兴盛,风景名胜区在资源保护与旅游开发之间的矛盾日渐突出。总体规划具有宏观特性,难以指导景区的实际建设,国家尚无明确的风景名胜区控制性详细规划（以下简称风景区控规）编制法规;国内许多风景区直接套用城市控规的编制办法来编制风景区控规,依此指导风景区的实际建设必将存在大量问题。从风景区控规编制过程中出现的问题出发,对风景区控规的编制方法、内容体系等进行探讨,让更多的从业人员开始重视风景区控规相关理论的研究,最终促成国家层面的风景区控规规范的出台,使风景区管理者有法可依、有章可寻。     

以体验式旅游为主导的旅游规划模式——以广西防城港冲黄沟景区为例

旅游规划作为旅游业发展的一个重要环节,正不断寻求适应新时代要求的规划模式,以体验式旅游为主导的旅游规划成为新的热点.文章从体验的视角思考旅游景区的规划模式,结合广西防城港冲黄沟景区规划案例,探讨在旅游景区规划各个环节中如何实现体验的规划视角.     

Getting farming on the agenda: Planning,policymaking, and governance practices of urban agriculture in New York City

How and why is urban agriculture taken up into local food policies and sustainability plans? This paper uses a case study of urban agriculture policymaking in New York City from 2007 to 2011 to examine the power-laden operation of urban environmental governance. It explores several ‘faces of power,’ including overt authority, institutionalized ‘rules of the game,’ and hegemony. It also investigates how multiple actors interact in policymaking processes, including through the construction and use of broad discursive concepts. Findings draw upon analysis of policy documents and semi-structured interviews with 43 subjects engaged in food systems policymaking. Some municipal decision-makers questioned the significance of urban agriculture, due to the challenges of quantifying its benefits and the relative scarcity of open space in the developed city. Yet, these challenges proved insufficient to prevent a coalition of civic activists working in collaboration with public officials to envision plans on food policy that included urban agriculture. Actors created the ‘local/regional food system’ as a narrative concept in order to build broad coalitions and gain entry to the municipal policy sphere. Tracing the roll-out of plans reveals the way in which both the food systems concept and specific policy proposals were repeated and legitimized. Unpacking the dynamics of this iterative policymaking contributes to an understanding of how urban environmental governance happens in this case.     

Importance of urban street tree policies: A Comparison of neighbouring Southern California cities

Research points to numerous benefits provided by urban street trees including qualitative and quantitative public health, economic, and environmental advantages for a city and its residents. As with other key aspects of city management that help develop municipal success, urban forestry requires foresight, commitment and planning that lead to effective policies and strategies. Good street tree management based on effective policies can maximise street tree benefits. Poorly conceived policies or the absence of effective policies can lead to the opposite result. A case study of the neighbouring cities of Loma Linda and Redlands, California illustrates this difference. The urban tree care and protection policies in these two cities have evolved differently. The differences may be attributable to contrasting municipal commitments to preservation and to best-practice management principles. Based on a comparative analysis of street tree policies of the two cities, it can be concluded that a local culture favouring tree protection and reflective guidelines and policies can result in proactive and successful management of an urban forest. Such policies also include provision for gathering data essential for strategic tree planting, care and removal.     

Can green roofs help with stormwater floods? A geospatial planning approach

Increasing urbanization, impervious space, and the impact of climate change are threatening the future of cities. Nature-based solutions, specifically urban green infrastructures, are seen as a sustainable strategy to increase resilience against extreme weather events, including the escalating occurrence of stormwater runoff flooding. Consequently, urban planners and decision-makers have pushed their efforts toward implementing green infrastructure solutions to reduce the impact of stormwater floods. Among others, green roofs help store water and decrease stormwater runoff impacts on a local scale. This research aims to investigate the effect of surface permeability and green roof implementation on reducing stormwater flooding and subsequently provide urban planners with evidence-based geospatial planning recommendations to improve urban resilience in Helsinki. First, we modeled the current impact of stormwater flooding using the Arc-Malstrom model in Helsinki. The model was used to identify districts under high stormwater flood risk. Then, we zoomed in to a focus area and tested a combination of scenarios representing four levels of green roof implementation, two levels of green roof infiltration rates under 40-, 60-, 80-, 100 mm precipitation events on the available rooftops. We utilized open geographic data and geospatial data science principles implemented in the GIS environment to conduct this study. Our results showed that low-level implementation of green roofs with low retention rates reduces the average flood depth by only 1 %. In contrast, the maximum green roof scenario decreased most of the average flood depth (13 %) and reduced the number of vulnerable sites. The proposed methodology can be used for other cities to develop evidence-based plans for green roof implementations.     

Restoration of the urban forests of Tokyo and Hiroshima following World War II

The urban forests of Tokyo and Hiroshima were devastated by American bombing during World War II. Approximately 160 km² of Tokyo were burned by more than 100 fire bombings, while an area of 12 km² was leveled and burned by one atomic bomb in Hiroshima. Tokyo's street tree population was reduced from 105,000 to approximately 42,000 by the end of the war. In the years immediately following the war, the street tree population dropped to 35,000 in Tokyo due to a combination of further tree mortality and the cutting of trees for fire wood. No estimates of pre-war street tree populations are available for Hiroshima. Examination of pre- and post-atomic bombing photographs of Hiroshima suggests an even higher percentage of the trees in the city were destroyed. Post-war reconstruction of the urban forests of each city developed along different pathways. Plans for the redevelopment of Tokyo were rejected by the general public who wanted a return to pre-war conditions. Few streets were widened to accommodate traffic and allow for new street tree planting. Plans for new parks were shelved or only partially achieved. Some streets were replanted by private citizens. Initial survival rates of replanting were low. Trees in Tokyo's municipal tree nurseries, which had not been converted to vegetable gardens during the war, were often larger than the optimal size for transplanting, but were used as no other trees were available. A more concerted effort to reconstruct the urban forest came following the 1959 decision to site the 1964 Olympic Games in Tokyo. Many streets were widened and planted with trees. New tree-lined boulevards were also created. In contrast, Hiroshima sponsored an international competition for the design of a Peace Park and a major tree-lined boulevard. Several wide streets were built with space for street trees. Major plans were also drawn to create greenways along the rivers and to build additional parks. Trees were initially donated by local farmers and nearby towns for planting the parks and the boulevard since municipal tree nurseries had been converted to vegetable gardens during the war. Survival rates were very low due to the rubble content of the soil and difficulties in watering the transplanted trees. Strong support from the mayors of Hiroshima contributed to the success of urban forest reconstruction in Hiroshima. The historical significance of the destruction caused by the first atomic bomb to be dropped on an urban area also contributed to Hiroshima citizens' will to reconstruct both the city and its urban forest. Species and location of trees determined the survival of trees after war in both cities. Species with strong resprouting ability and thick bark survived the bombing and fire. In Tokyo trees located in open areas avoided the fire, while in Hiroshima trees standing behind tall concrete buildings were shielded from radiation and the heat wave. In addition to the difficulties faced during the city-wide replanning process, constraints of urban forest recovery included severe financial restriction, short supply of proper large-sized trees for planting and lack of labor for planting and post-planting tree care. Hiroshima used public participation and community involvement to restore the urban greenery successfully and, until today, has maintained a program to conserve the trees that survived the atomic bomb.     

从财务视域分析食用菌产业的生产发展路径

随着食用菌企业数量增多,食用菌价格起伏较大,生产效益不稳定,也对食用菌行业的可持续发展带来巨大挑战。食用菌企业要从财务角度构建食用菌发展的长效格局,合理规划食用菌生产、产品研发和营销等流程,创新生产模式。     

安仁县山塘生态观光果园总体规划

通过对安仁县山塘生态观光果园的指导思想、规划理念、功能分区及其总体规划进行介绍,力求将景观元素与农业生产有机结合,使园区的建设集生态观光、原野休闲、科教示范于一体。     

森林公园体验化景观规划初探——以湖南浏阳大围山森林公园为例

通过体验化设计的途径来探讨森林公园景观规划设计，意在丰富森林公园的功能需求以及设计元素，并就营造吸引游人的体验环境，提出森林公园体验化设计的具体实施方法，使得森林公园的功能丰富多样，营造更加宜人和富有吸引力的环境。