Broad areas of professional practice to make the necessary professional knowledge landscape architects increasingly present a comprehensive and integrated features.Today, many landscape architects will be required for landscape architecture practice, extensive knowledge and  feel a bit embarrassed.Correspondingly, with a variety of different professional backgrounds to participate in the practice of landscape architecture to, of which both traditional gardener, there are architects, urban planners, botanists, geographers, environmental and even painters and artistssculptor.They have their own unique knowledge and the professional advantages of modern landscape architecture makes the richness of the multi-scene, to explore a variety of professional landscape architecture in modern science and art both in deepening and expand the experience of landscape architectural design and methods. 2.3 design elements and design practices to expand         Was used as a multi-purpose practice professional, modern landscape design palette of material also extends to traditional landscape design can not imagine the situation.Landscape Design Plant is no longer the dominant element of the dominant, but rather an alternative landscape materials, land, rocks, water, concrete, bricks, wood, tile, steel, plastic and glass and many naturalartificial material in the modern landscape design can be used, even the local hardware store in a form element plated frog also appears in the modern landscape works.Avant-garde in the small-scale urban garden design, almost no natural landscape materials greatly challenges the traditional definition of the limitations of the landscape.       Landscape design materials with rich phase reflect the persity of modern landscape design practices, from large-scale landscape planning and design of the SAD (Survey - Analysis - Design), highway planning and conservation planning projects in the "Qian Cengbing" modeand "patch - corridor - matrix" model to the modern minimalist garden courtyard design, many rational functionalism, ecology, and art design techniques and the environment beyond the traditional rules of style and design techniques of naturalThe debate, the scope and scale to adapt to a variety of landscape design practice, to meet different design requirements, and created a different landscape image.                               
    3 Evolution       As the landscape is a living, changing organism, like the growth of the modern landscape architecture in the past more than a century as the development of American society as changing, reflecting the social reality of a particular time. 3.1 naturalistic style swing beginning with      
The vast territory the United States, changing the natural landscape to landscape design has almost natural pursuit of naturalism, Olmsted and his followers in a city park system planning and design to promote naturalism, against the pursuit of dignity andclear structure of classicism.Park-style attractions and beautiful natural environment was poor cities in stark contrast to a return to nature to meet the needs of society.However, after the U.S. landscape architecture through the flashy veneer of The Late Victorian Eclectic Landscape, City Beautiful Movement and the revival of classical neo-classical trends and so transform the style of decades and did not get out swinging in the modern society to adapttheir own way. 3.2 Modernism       Before and after World War II, modern art and modern architecture in theory and works under the influence of American modernist landscape architecture in the so-called "Harvard Revolution" after forming.Modernist landscape architecture is not the most positive contribution to the use of new materials, but that function should be the starting point of this concept design, modern landscape architecture and thus out of a beautiful design or landscape type Transcendentalism, to the venue and the reality of the times fit, given the rational application of landscape architecture and greater creative freedom.As Harvard Revolution "James Rose said:" We can not live in the painting, but as a group to design the landscape paintings of our daily lives plundering the region's use of the opportunity."He is most concerned about the use of space, rather than planning the landscape design or so-called order. The leaders of Thomas Church, California school works is not really encouraging the order form, but free design language as well asdesign itself, the venues and the delicate balance between employer requirements. Another master Garrett Eckbo Modern Landscape Design Landscape design is more emphasis on the social scale, emphasizing landscape architecture's role in public life. In his view, "If the designonly consider beautiful, is the lack of inherent rationality of the luxury community. "geometric sense of order most of his works of Dan Kiley also that the mapping design is life itself, the pursuit of the function will produce real art. the best symbol of thisa period of landscape design and environmental care for the landscape architect is Lawrence Halprin, his work reflects the progress of modernism in all aspects of landscape architecture, including the design of the social role of natural systems to adapt to stress, as well as function and process of the formits importance and so on. He's a natural place as a dramatic landscape inspired urban planning of public landscape design, urban landscape is not only beautiful but also recreational place for people to become the city's open space human. 60 years since the 20th century, social democracy, brought about the promotion of public participation in decision-making system changes in all aspects of American society, landscape architecture is also true, but Harpring is a direct supporter of this change and advocates, areHarpring made his company is the design process to adapt to new social realities, through seminars and information feedback, etc. to achieve the wishes of the public involved in the design so that the community was able to landscape design set-up. modern doctrine of the community through landscape architecture designfactors and features to further stress and social realities embarked on the road simultaneously. 3.3 Ecological Ethics       现代景观建筑学英文文献和中文翻译(2):http://www.youerw.com/fanyi/lunwen_34047.html