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China's urban waterfront green space ecological planning and design content and methods?

Through the analysis of the role of riverfront green space in the city and the current problems faced by the construction of urban riverfront green space, put forward the basic principles of urban riverfront green space planning and design, and put forward specific methods for the treatment of the landscape components of the waterfront green space. Urban riverfront green space is an important resource in urban development, which has extremely important value in improving the quality of urban environment and enriching regional landscape. Because it is at the edge of land and water, the riverfront area has the richest landscape information, which is often the most beautiful area of a city, and is the most important part of the formation of urban landscape characteristics. At the same time, the riverfront green space with its superior hydrophilicity and comfort to meet the needs of modern people's life, entertainment, leisure and other needs, which is the characteristics of other urban environments can not be compared. City construction, planning first. And the planning and design of urban waterfront green space, can not just stay in the traditional design mode, should be from a deeper, broader level to understand and grasp, especially from the perspective of landscape ecology, from the perspective of man and nature **** to analyze the construction of the riverfront green space into the urban ecosystem protection planning, digging out the urban riverfront area of the large ecological functions and recreational functions. This paper analyzes the traditional waterfront green space construction process deficiencies, puts forward should be in the traditional planning and design methods on the basis of the introduction of ecological planning and design methods, to meet the requirements of the new period of the construction of waterfront green space, and from the ecological planning and design principles of the waterfront green space, waterfront green space of each landscape component dealing with the specific design method to start, the theoretical framework of the ecological planning and design of the waterfront green space for research, in order to For the future planning, design and construction of urban riverfront green space to play a certain reference and reference role.

1 The traditional urban waterfront green space construction process problems Due to the limitations of understanding and *** disconnect between the management departments, in the current transformation of the riverfront area in most cities, different departments focus on different, such as water conservancy departments only emphasize the water system's function of flood control, water transportation, irrigation, etc., the water system as an engineering entity rather than the urban public **** space to look at, less consideration for the psychological and physiological needs of the people. Psychological and physiological needs. In the engineering measures on the urban water system more than the use of cutting straight, stone berms, high bank, etc., this move can indeed meet the needs of the use of functionality, but as an important part of the urban public **** space of the rivers, lakes, etc., this treatment has ignored many slow or imperceptible negative impacts will bring a series of irreparable losses to the development of the city. Mainly manifested in: 1 closed hard artificial barge changed the natural characteristics and important ecological functions of the natural formation of the river shoreline. Such as yangzhou ancient canal, the original river on both sides of the slurry masonry stone barge and granite railing enclosure, so that the ancient canal waterway into only simple utilitarian value of flood control, transportation channel. This simple and hard treatment limits the ecological protection and environmental purification of the water system in the urban space, and causes serious defects for the formation of rich and diverse urban riverfront landscape ecosystem. 2 vertical steep artificial masonry, barge, so that the riverfront area space becomes cold lack of interest in life indifference to the space, the people and water apart, make it unattainable. For example, the Huangpu River, Shanghai Bund section due to flood control and other functional requirements, the river on both sides of the 3 ~ 7m high barge masonry is just like two high walls hard and dull, so that the river landscape lack of spirit and change, and the later transformation of Pudong Lujiazui along the waterfront green space on the break of the original shoreline, set up the public waterfront activity space, both rich in waterfront landscapes, but also to meet the public close to the water, pro-water requirements. 3 river water quality pollution is serious, the lack of scientific and effective means of governance. Many cities due to the lack of strict management of industrial and domestic sewage, discharged directly into the city's internal rivers, so that the original clear water into the "black water river", stinking ditch, such a river without treatment, not only can not improve the urban environment, but will become a new source of pollution. At present, China's use of waterfront plants to manage water pollution technology has been a great development. Chengdu, Sichuan living water park is a successful example, it uses the fuji river, south river channel transformation out of a large area of waterfront shallow, planting a large number of aquatic, marsh plants, through the plant absorption, filtration and degradation of pollutants in the water. This method of using waterfront wetland plants to purify water quality has the characteristics of low cost, long effect and multi-functionality compared with the common sewage treatment plant. This idea is worth learning for the transformation of urban waterfront green space. 4 planning and design and local culture is out of touch, the landscape lacks personality. A lot of urban waterfront space design, the designer lacks of urban history, cultural heritage of the full excavation and the basis of the current situation of the full analysis, copy the general design mode, so that the construction of the waterfront landscape is bound to "a thousand cities one side", lack of characteristics and vitality. For the transformation of urban waterfront area landscape, if you want to completely change its function and landscape deficiencies, improve the construction of urban riverfront landscape ecological system, *** decision-makers must first solve the following problems: First, the coordination *** management of inter-departmental work, the organization of water conservancy departments, water transport and transportation departments, gardening departments, urban planning departments, environmental protection departments, etc., to carry out a comprehensive environmental assessment, to achieve multi-objective Concurrently. Secondly, the comprehensive management of water quality pollution of watercourses. Riverside area of openness, accessibility are built on the basis of good water quality conditions, if the face of serious pollution, emitting a stench of the river, and then good waterfront space, I am afraid that no one is willing to approach. In short, the new period of urban riverfront green space environment transformation, must be a new concept to re-examine the city of this valuable resource, from the whole city landscape system to the waterfront landscape construction, the public's activities led to the water's edge. To do this, the first should start from the planning and design, follow the scientific planning principles and reasonable design means, the use of ecological planning and design concepts of urban waterfront green space planning and design, so that the city's waterfront green space really become an organic part of the urban landscape.

2 The essence of ecological planning and design

2.1 The concept of ecological planning and design Eco-planning and design in the field of landscape design is still in its infancy, and the interpretation of its concepts are also different. To summarize, generally contains the following one or two aspects: 1 application of ecological principles to guide the planning and design; 2 so that the results of the planning and design in the maximum protection of the environment at the same time must meet the human landscape and functional needs. At present, the "ecological planning and design" of landscape gardening does not have a clearer concept, a complete theoretical basis and clear principles and standards, which need to be enriched and improved through further research and continuous practice. 2.2 Connotation of Ecological Planning and Design Traditional planning and design is generally based on the premise of human needs, functional, artistic and socio-cultural principles, to meet the physiological, safety, social and self-esteem needs of contemporary people. Compared with traditional planning and design concepts, ecological planning and design give more consideration to the needs of sustainable urban development, i.e., meeting the needs of the present generation without jeopardizing the needs of the development of future generations. For the latter, traditional planning and design basically seldom consider, ecological planning and design is to fill this gap and appeared. Of course, under the current social conditions, the lack of natural resources and the level of science and technology can not provide sufficient support for ecological planning and design, ecological planning and design can not completely replace or evolve into conventional planning and design tools. Designers often adopt an eclectic or reformist approach, i.e., combining with traditional planning and design methods to meet the needs of recent urban development while strengthening the protection of the ecological environment and introducing the viewpoint of sustainable development, forming a more demanding design method attached to the traditional design methods. But it can be predicted that, with the development of society, ecological planning and design methods will be generally adopted, then, ecological planning and design is no longer attached to the traditional planning and design, but with the traditional planning and design into one of the "conventional" design techniques.

3 urban waterfront green space ecological planning and design principles

3.1 to maintain the integrity of the site and continuity of the urban waterfront green space construction to stand outside the waterfront green space, from the entire urban green space system and even the entire urban system and other higher-order system to study the problem. Like what the ancient Chinese military said: the good game player, planning the potential; not good game player, planning the son. The "potential" is the development trend of the whole area. The formation of the river is a natural force of the process of integrated action, this process constitutes a complex system, a factor in the system will affect the change of the landscape as a whole. Therefore, in the waterfront landscape planning and construction, first of all, the waterfront green space should be considered as a system, from the perspective of the region, with a systematic point of view of the all-round planning, rather than the river and the large regional space is divided into separate considerations. 3.2 Comply with the ecological characteristics of the base site and reduce human interference and damage Any modification on the earth's surface will have an impact on it, but this does not mean that human beings will withdraw from the biosphere and stop building, but should recognize the causes and magnitude of the impacts of human construction on the ecosystems, and reduce or avoid such impacts through design. Maintain the resilience of the ecosystem, so that the environment is full of vitality and vigor. Any landscape ecosystem has a specific material structure and ecological characteristics, presenting spatial heterogeneity, planning and design should be carried out before a systematic analysis of the base site, considering the base site of the climate, hydrology, topography and geomorphology, vegetation, as well as wildlife and other ecological elements of the characteristics of the ecological factors, and in the process of planning and design to comply with these ecological characteristics, to minimize anthropogenic interference and damage. 3.3 ecology, landscape, flood control and other multi-functional balance of urban waterfront improvement is not simply to solve the problem of water transportation, flood control and other functions, should also include the improvement of the water ecological environment, improve the water quality of rivers and lakes, increase the recreational opportunities for waterfront green space and landscape effect, enhance the economic value of the land around the waterfront area, and so on a series of issues. Only from a certain point of view. Will be biased, resulting in losses, so we must take into account, overall coordination. Waterfront landscape planning and construction must be guided by system engineering, under the premise of meeting the basic use function, reasonable consideration of landscape, ecological and other needs, the waterfront green space into a multi-functional composite urban public **** space, in order to meet the diversified needs of modern urban life. 3.4 green as the main, ecological priority urban waterfront green space in the city important ecological function requirements, mainly through the plant to complete, which determines the planning and construction of urban waterfront space, must be based on the principles of landscape ecology, simulation of natural river shoreline natural ecological community structure, green as the main body of the plant landscape as the main body of the plant, emphasizing the native species as the main, taking into account the biodiversity of the plant community The main body of greening is plant landscape, emphasizing on native tree species, taking into account the biodiversity of plant communities, and utilizing natural materials to create a natural and interesting waterfront landscape. Planning and design should be to protect biodiversity, increase landscape heterogeneity, emphasize the landscape personality, promote the natural energy back to the circle, frame the urban habitat corridor, realize the sustainable development of the landscape and other aspects as the main content of the ecological planning of the waterfront green space to be embodied. 3.5 Landscape combined with culture, highlighting the local characteristics Natural landscape improvement and cultural landscape humanities landscape protection is the combination of urban waterfront green space reflecting the city's historical and cultural heritage, highlighting the cultural connotation of the waterfront green space and local landscape characteristics of the important means. Especially for some famous city with profound history and culture, fully excavate the city's historical and cultural characteristics, the use of landscape performance methods to express, to maintain the continuity of the city's historical lineage, is an important principle of ecological planning and design of the waterfront green space, which restores and improves the vitality of the waterfront landscape, enhance the local characteristics of the waterfront green space, cultural, interesting and so on are of great significance.

4 Methods and contents of ecological planning and design of urban waterfront green space Ecological planning and design to meet the needs of sustainable development as the principle, in order to comply with the ecological environment of the base site, saving material and energy, protecting biodiversity and improving plant ecological efficiency as the standard. On the basis of traditional design methods, the ecological design principles and methods are used as a guide to reanalyze, evaluate, organize and improve the conventional design, so that the two circle back and forth to form the final plan. Urban waterfront green space is a complex area containing water and land, rich in landscape and ecological information. The ecological planning and design of the waterfront green space mainly includes the design and treatment of the green space internal composite plant communities, landscape architectural sketches, road pavement system, waterfront barge and other basic elements. 4.1 Positioning of landscape style and architecture, sketches set Waterfront green space to meet the public rest, landscape and point landscape and other functional requirements, need to set a certain landscape architecture, sketches, generally commonly used landscape architectural types, including: pavilion, porch, trellis, water pavilion, tea house, dock, pagoda building, tower, etc.; commonly used landscape sketches, including: sculpture, rockery, stone, benches, balustrades, signage and so on. Waterfront green space in the building, sketches of type and style selection is mainly based on the green space of the landscape style of the positioning to decide, in turn, the waterfront green space of the landscape style is also through the landscape architecture, sketches to be embodied. The landscape style of waterfront green space mainly includes two categories of classical landscape style and modern landscape style, among which, the classical landscape style of waterfront green space is often in the form of antique and retro, reflecting the historical and cultural characteristics of the city, and expresses the historical and cultural connotation of the city through the recovery of the historical monuments and the reproduction of the representative culture of the city, which is usually applicable to the historical and cultural heritage of the historical and cultural city or the historical protection area. The style is usually applicable to some historical and cultural cities or historical protection areas with deep historical and cultural heritage. For example, in the planning of Yangzhou City's Ancient Canal Riverside Scenic Belt, since Yangzhou is a national historical and cultural city with a history of more than 2,000 years, and since the Ancient Canal runs through the city's historical protection area, the landscape style of this riverside green space is positioned to reflect Yangzhou's "Ancient Canal Culture" as the core, and through the restoration of cultural monuments along the Ancient Canal, the style of this riverside green space is positioned to reflect the "Ancient Canal Culture", Protection and construction. Recreate the former prosperity of the ancient canal and style, riverfront green space inside and around the building are typical of Yangzhou "Hui" architectural style is given priority to. For some emerging cities or regions, the positioning of the waterfront green space landscape style is often based on the overall requirements of urban construction will choose a modern style of landscape, through sculpture, trellis, fountains and other landscape architecture, sketches to reflect. For example, Shanghai huangpu river lujiazui along the riverfront green space and suzhou industrial park jinji lake side of the lake green space, although Shanghai, suzhou is also for the historical and cultural city, but due to the pudong and suzhou industrial park are new modern city area, so in the choice of landscape style still choose modern landscape style is the main, through the modern style of the landscape architecture, vignettes reflecting the characteristics of the city and the trajectory of development. Of course, the choice of landscape style of waterfront green space, the key lies in the coordination with the overall style of the city or region. The setting of architectural vignettes should be small in size and decentralized in layout, and the architectural vignettes should be integrated into the general environment of the green space, so as to design a work with vitality rich in local characteristics. 4.2 Waterfront space processing and vertical design As a "land and water edge" of the waterfront green space, mostly open space, the design of its space often takes into account the external street air landscape and water landscape, people's site and viewing point location processing has a variety of modes, of which there are several representative of the following: peripheral space (street) ornamental; Greenland Internal space (roads, squares) viewing, touring, resting; waterfront viewing; water viewing, play; waterside viewing and so on. In order to achieve multi-level three-dimensional viewing effect, generally in the vertical direction, along the waterfront to set the ribbon space, connecting the landscape nodes (generally every 300 ~ 500m set a landscape node), constituting a vertical landscape sequence. Vertical design considerations of the ribbon landscape sequence of undulating changes in height, the use of terrain stacking and vegetation configuration changes in the landscape constitutes a beautiful and varied forest canopy line and skyline, the formation of vertical rhythm and rhythm; in the horizontal, the need for different elevations in the arrangement of the waterfront, waterfront space, waterfront space cross-section processing should be considered in a comprehensive manner, such as the water level, water flow, tidal flooding, traffic, landscape and ecological requirements, so we have to Take a multi-layer complex section structure. This kind of compound section structure is divided into outside low inside high type, outside high inside low type, middle high both sides low type and so on several kinds. The low-level waterfront space is designed according to the normal water level and is allowed to be flooded when the flood season comes every year. These two levels of space can form an open space with good hydrophilicity. The high-level steps are used as a flood control levee for the one-in-a-millennium flood. Each level of space utilizes various means of vertical liaison to form a three-dimensional space system. Waterfront green space land space and water space usually exists a large height difference, due to landscape and ecological needs, to avoid the traditional block stone barge flat and hard feeling, waterfront space can be used in the following sectional forms for processing. 1 natural gentle slope type: usually applies to the wider waterfront space, between land and water through the natural gentle slope terrain, weakening the sense of height difference between land and water, the formation of natural spatial transition, terrain slope is generally less than the base of the soil natural angle of repose. The slope of the terrain is generally smaller than the natural resting angle of the soil of the base site. The waterfront can be set up as an excursion trail, combined with the planting of plants to form a naturally curved waterfront, forming a natural ecological, open and expansive waterfront space. 2 Terrace type: for the water and land height difference is large, green space and not very open area, can use the terrace type to weaken the sense of space height difference, to avoid the hard transition. That is, the total height difference through the multi-storey terrace solution, each layer of the terrace can be designed according to the need for platforms, paving or planting space, between the terrace through the steps to communicate the upper and lower levels of traffic, combined with the planting design to block the hard retaining wall masonry, the formation of inward-looking waterfront space.  3 pick out type: for the open water, can be used in this form of treatment, through the design of water or water platform, stacks to meet the requirements of people pro-water, distant viewing requirements. Pro level platform, trestle surface elevation generally refer to the water level of the water body design, usually according to the condition of the water body, higher than the normal water level O.5 ~ 1.Om, if the wind and waves in the region, may be appropriate to raise, under the premise of safety, as close as possible to the surface of the water is appropriate. Pick out of the platform, stacks in the deeper areas of the water depth should be set railing, when the water depth is shallow, you can not set railing or the use of bench railing enclosure. 4 introduction type: this type refers to the introduction of water into the interior of the green space, combined with the terrain elevation relationship to organize dynamic water features, constitute landscape nodes. The principle is to use the flow of the water body of personal life, with the water pump as the power, the lower river, lake in the water pump to the upper green space, through the waterfall, streams, water features such as waterfall form and then flow back to the lower body of water, the formation of water back to the circle of the water itself. This use of terrain elevation relationships to complete the construction of dynamic water features than simple protective barge or retaining wall practice is much more scientific and beautiful, but because of the cost and maintenance and other reasons, only applies to regional landscape nodes, should not be used on a large scale. 4.3 The design of waterfront green space plant ecological community Plant is the main means to restore and improve the ecological function of waterfront green space, to the ecological benefits of green space as the main goal, on the basis of the traditional plant landscape, in addition to focusing on plant ornamental requirements, but also combined with the vertical design of the terrain, simulating the formation of the water system of the formation of the natural process of the formation of the typical geomorphological features, such as estuaries, shoals, wetlands, etc. to create a suitable terrain environment for the waterfront plants, so as to create a suitable terrain environment for waterfront plants. To restore the ecological quality of the urban waterfront area as the goal, the structure of green space plant community is considered comprehensively. In addition, natural vegetation elements are introduced in waterfront ecologically sensitive areas, such as building waterfront ecological protection zones in suitable areas and establishing a variety of wildlife habitats, etc., so as to establish a complete waterfront green ecological corridor. 1 Selection of greening plant species. In addition to the selection of conventional ornamental tree species, attention should be paid to cultivating local water-tolerant plants or aquatic plants as the main focus, while attaching great importance to the composite vegetation communities along the waterfront, and they are especially important for ecological intertwining zones such as the inter-water zone of the riverbank and the zone within the embankment. The selection of plant species should be based on the landscape, ecology and other requirements, on the basis of the right place and the right tree, but also focus on increasing the diversity of plant communities. The use of different natural conditions of different sections of the differences, configuration of the artificial communities with their own characteristics. Commonly used water, water-resistant plants, including: willow, Metasequoia, fir, Yunnan Huangxin, forsythia, reeds, calamus, cattail, lotus, rhododendron, zeylanchu, water onion, wild rice, water lilies, thousand Qu vegetable, pimpernel, and so on. 2 urban waterfront green space greening should try to use naturalized design, imitating the structure of natural ecological communities. Specific requirements, first, the mix of plants - ground cover, flowers and grasses, the level and combination of low shrubs and tall trees should try to conform to the structural characteristics of the natural vegetation communities along the waterfront; second, the introduction of natural vegetation elements in the ecologically sensitive areas along the waterfront, for example, planting trees to restore the natural woodland in suitable areas, establishing wetlands in estuaries and river bifurcations, the transforming conservation methods to cultivate natural grasslands, and establishing a variety of wildlife habitats. These nature-like ecological communities are highly productive, self-maintaining, easy to manage and have high environmental, social and aesthetic benefits, and at the same time are highly economical in terms of consumption of energy, resources and manpower. 4.4 Design of barge The traditional engineering means of controlling floods are mainly to straighten the curved streams, deepen the sloughs, and reinforce the banks, dams and weirs with concrete, bricks, stones and other materials. These measures have had many negative consequences. The construction of large-scale flood control facilities directly destroys the basis for the survival of riparian vegetation, and the lack of permeability of the concrete berm isolates the berm soil from the upper space of the exchange of water and air and the return loop. The use of ecological planning and design techniques should compensate for these shortcomings and promote the use of ecological barges. Ecological barge refers to the restoration of natural riverbanks or natural riverbanks "permeability" of the artificial barge, which can fully ensure the riverbanks and the water exchange and regulation between the function, at the same time has a certain flood strength. Ecological barge can be generally divided into the following three Figure 3: 1 natural prototype barge: the main use of plants to protect the embankment, in order to maintain the characteristics of the natural embankment, such as waterfront planting of weeping willows, sequoia, aspen, and reeds, calamus and other water-loving characteristics of the plant, the growth of the developed root system to stabilize the embankment, coupled with the flexibility of the willow branches, in line with the water flow, to increase the ability to resist flooding, protection of the embankment. 2 natural barge: not only planting vegetation, but also the use of natural stone, wood bottom, in order to enhance the flood resistance of the embankment, such as the foot of the slope using gabions, piles or slurry stone block bottom, on which there is a certain slope of the earth embankment, slope planting vegetation, the implementation of the combination of trees, shrubs and grasses, solid embankment bank protection. 3 Artificial natural-type barge: on the basis of natural-type berm, and then use reinforced concrete and other materials to ensure a large flood-resistant capacity, such as reinforced concrete columns or water-resistant logs made of trapezoidal box-shaped framework, and into which to put a large stone, or insert a concrete pipe of different diameters, to form a very deep fish nests, and then in the box-shaped framework buried in the large willow branches, poplar branches, etc.; adjacent to the side of the water planting of aquatic plants, such as reeds, irises and other aquatic plants, so that the lush, green grasses grow in the seam. 4.5 Treatment of road system The internal road system of waterfront green space is an important means to constitute the spatial framework of waterfront green space, and it is the main way to contact the green space and water, the green space and the surrounding urban public **** space, the design of modern road of waterfront green space is to create the humanized road system, in addition to providing the public with convenient and fast traffic function and ornamental point, it can also provide the humanized spatial scale, vivid, varied spatial and temporal transformation and spatial sequence. Various spatial and temporal changes and spatial sequences. To achieve such requirements, the waterfront green space internal road system planning and design should follow the following main principles and methods: 1 to provide people and vehicles, harmonious **** survival of the road system, the series of each out, activity plaza, landscape nodes and other internal open space and green space around the street space. Here said people and vehicles diversion refers to the visitors of the walking road system and vehicle use of the road system respectively organization, planning, general walking road system mainly to meet the visitors walk, dynamic viewing and other functions, series of preparation out, activity square, landscape nodes and other internal open space, mainly touring trails, steps, step landing, stepping stone, TingBu, trestle, etc. several types of composition; vehicle road system is generally for the larger area of the waterfront green space consider setting. The vehicle road system is generally set for the larger area of waterfront green space consideration, generally small strip waterfront green space using external streets instead of mainly including motorized fire, excursion, maintenance, etc. and non-motorized roads, mainly connecting with the green space adjacent to the periphery of the street space, of which non-motorized roads to meet the needs of tourists using bicycles, tour rickshaws for fun, tours, and exercise. Planning is appropriate according to the environmental characteristics and the use of the requirements of separate organizations, to avoid mutual interference. For example, suzhou jinji lake waterfront green space, due to the open lake, along the lake tour route in addition to consider walking walking sightseeing, but also consider pollution-free battery tour road to meet the needs of tourists long-distance tour, to do each in their own way, do not interfere with each other. 2 to provide comfortable, convenient, attractive tour path. Create diversified activity places. The design of internal roads and places in the green space should follow the principles of comfort, convenience and aesthetics. Among them, the comfortable requirements of the road surface regional relatively flat, in line with the use of the scale of visitors; convenient requirements of the road line design as much as possible to achieve convenience, increase the accessibility of the activities of the place, the modern waterfront green space internal roads to consider the landscape, tour interesting and space creation, the plane of the more curved and natural linear organization of the circular road system, or the use of straight lines and arcs, curves, roads and squares in combination with the forms of Tandem and nodes and communicate with the surrounding street space, surface with the terrain undulation, constitute a variety of forms, different styles of road systems; and beautiful is the basic requirements of the green road design, compared with other roads, garden green internal roads pay more attention to the choice of pavement materials and patterns of decoration to achieve the requirements of aesthetics, generally this decoration is through the changes in the form and pattern of the road surface to obtain through the design of such decorative , creating diversified activity places and road landscape. 3 Provide safe and comfortable waterfront facilities and diverse waterfront walkways to enhance human interaction and sense of place. Waterfront green space is the landscape green space type with the richest natural geomorphic features, and its essential feature is to have open water surface and varied waterfront space. The planning of the internal road system can make full use of these basic geomorphological features to create diversified activity places, such as waterfront excursion paths, platforms extending into the water, piers, trestles, and various forms of excursion paths and resting plazas running through the internal nodes of the green space, combined with railings, benches, steps and other accessories, to provide safe and comfortable waterfront facilities and a variety of waterfront trails, in order to enhance interpersonal communication and create a personalized activity space. Create personalized activity space. Specific design should be combined with environmental characteristics, in the choice of materials, road line, road form and structure, etc. treated separately, the choice of materials to local native materials, mainly permeable materials, to enhance the ecology of the road space, and enhance interpersonal communication and sense of place. 4 Configuration of beautiful road decorative sketches and lighting. Humanized road design in addition to the road's own careful design, but also consider such as benches, signs and other related decorative sketches of the design to meet the needs of visitors to rest and access to information. At the same time, the design of lighting is also an important part of road design, general waterfront green roads commonly used lamps and lanterns, including street lamps main arterial roads, garden lamps excursion branch roads, the level of the platform, floodlights combined with street trees, contour lamps on the level of the platform, trestles, etc., the light set in the evening for visitors to provide illumination at the same time, but also to create a colorful effect of light and shadow.

5 Conclusion Urban waterfront green space ecological planning and design research is a big topic, involving many factors, such as ecology, behavioral psychology, economics, botany, aesthetics, literature ...... are its theoretical reference framework. The problems involved in urban waterfront green space are difficult to be fully articulated, nor can they be realized only by the individual thinking and subjective desire of the gardeners. This paper discusses the necessity of introducing ecological planning and design for the construction of waterfront green space in large and medium-sized cities in China from the perspective of theoretical research, and puts forward the theoretical framework of ecological planning and design of waterfront green space through the analysis of China's current national situation and the summarization of domestic and foreign theories and construction experience, with a view to playing a certain role in reference and reference for the planning, design and construction of urban riverfront green space in the future.

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