The rapid development of urban sculpture has increasingly become an important part of environmental art and the expression of urban image. Sculpture materials are mostly natural stone, artificial stone, wood, metal, cement and new materials such as plastic, rubber, stainless steel, aluminum alloy, gold copper, glass fiber reinforced plastic, etc. In order to cater to the trend of people's "returning to nature", break through the stereotype of traditional sculpture "steel and cement", enrich the environmental space, better protect and beautify the environment, reflect the meaning of sculpture, and make the urban landscape more attractive and cultural and artistic taste, "green sculpture" came into being at the historic moment, quietly sweeping all countries in the world. It refers to the artistic image with different postures and vivid charm, which is carefully cultivated and pruned by various green plants, especially trees. It combines garden and sculpture art, skillfully integrates the theme of "people, animals and nature" into beautifying the urban environment, and has a wonderful effect of shaping a beautiful image of the city and protecting the urban environment. The green sculptures are generally novel in design and rich in meaning. The overall style is beautiful and grand, full of modern flavor. Green sculptures are not only rich in materials, but also can release oxygen needed by human beings, absorb carbon dioxide, purify air, regulate air humidity, and bring health and artistic enjoyment to the city.

Circular sculpture, also known as three-dimensional sculpture, refers to non compressed three-dimensional sculpture that can be viewed from multiple directions and angles. Sculpture is the overall expression of art on the sculpture. The viewer can see all sides of the object from different angles. It requires the sculptor to carve from the front, back, left, right, top, middle and bottom. The techniques and forms of round sculpture are also varied, including realistic and decorative, concrete and abstract, indoor and outdoor, shelf and large city sculpture, colored and non colored, etc; The contents and themes of the sculptures are also rich and colorful, which can be characters, animals or even still life; The materials are more colorful, including stone, wood, metal, clay, gypsum, textiles, paper, plants, rubber, etc. It is mostly used in fountains, gardens and indoors. Because the round sculpture works are very three-dimensional, vivid, lifelike and vivid, the selection of stone materials is strict. First of all, we should design the shape of the sculpture, and pay special attention to the fact that the sculpture must have a proper proportion with the real object from length to width to thickness.

Copper casting is an important part of Chinese traditional culture and art. Copper casting has a long history and mature technology. The process of casting copper is more complicated than that of forging copper, and the artistic creation has a good recovery. Therefore, it is suitable for becoming the material of fine works and is very popular with artists, especially figure sculpture. But it is easy to oxidize, so pay more attention to maintenance. Each cast copper artwork is made through 11 complex and rigorous processes, which include traces of traditional handicrafts, lines and modern technology of precision casting. Cast copper is put into the sintering furnace and sintered at 1000 ℃ - 1150 ℃ according to different metal materials. The copper liquid is immediately cast into the ceramic shell. After cooling, the outer ceramic shell is broken, and the copper product rough embryo is peeled out.

At present, most of the most influential sculptures in China and the West are made of copper. For example, Rodin's "The Thinker", "The Bronze Age", and "The Statue of Liberty", the world's top sculptures are mostly made of copper. The lines are suitable for sculpture because of the texture, plasticity, unlimited specifications, and rich color texture of copper, which are also jade sculptures The effect that wood carving and stone carving can't achieve is that jade carving can only make very small works because of the limitation of materials. Because of the limitation of wood carving technology, there is no precedent for large outdoor sculptures. The inheritor, whose bronze carving has opened a new chapter in the 5000 year history of copper.

Most of the jades mentioned in daily life refer to nephrite, and there are many kinds of nephrite products. Generally, they refer to white sheepskin jade, white jade, topaz, purple jade, black jade, jasper, sapphire, ruby and northeast Xiuyu produced in Xinjiang. In the jade carving, the white jade with sheepskin is fine in texture and strong in luster, as white as sheepskin, which can be called "the king of nephrite" and "the crown of white jade". In addition, Nanyang jade, Lantian jade, Hotan jade, agate, crystal, coral, turquoise, lapis lazuli, etc., all belong to the category of nephrite. Later, due to the opening of the Silk Road, the jade produced in Hotan, Xinjiang, was unanimously recognized and began to play a leading role in the processing of royal, official and folk jade. Nephrite gradually evolved into a synonym for hotan jade.

1. Traditional green sculpture shaping: directly pruning the plants with garden art. There are simple geometric shaping (such as sphere, cube, pyramid, cylinder), complex geometric shaping (layered shaping, spiral shaping, etc.), animal shaping and various peculiar shaping (automobile shaping, aircraft shaping, abstract and free shaping, etc.). ascend a height GRC Building Common plants include pine and cypress, privet, boxwood, national locust, elm, etc. 2. Grafting: taking a certain plant as the rootstock, grafting plants with different impressions on it, and then making artistic processing of its shapes, such as polychrome chrysanthemum bonsai, polychrome rose bonsai, polychrome peach, polychrome plum, polychrome crabapple, etc. Such as cliff chrysanthemum, tower chrysanthemum, animal shaped chrysanthemum, etc. 2.1 Single plant green sculpture refers to the sculpture formed entirely by one plant or one plant with multiple colors or by grafting multi-color plants. The sculpture has a long viewing period and simple operation. For example, tree sculptures can be kept for a long time only by special pruning, without considering flower changing and water spraying, and the maintenance management is simple. 2.2 Double plant green sculpture refers to the sculpture shaped by two different kinds of plants. The sculpture has a long viewing period and a strong three-dimensional sense, and usually uses the complementary and mutually reinforcing advantages of two plants for modeling. Such as evergreen and deciduous plants, broad-leaved and coniferous plants, lianas and herbs, as well as different colors, species, branches and leaves, such as leaf color, flowers and fruits, branches and stems. 2.3 Mixed plant green sculpture refers to sculpture with three or more kinds of plants. GRC Building customized The sculpture has a short viewing period and complicated operation, but it is highly ornamental and lifelike. The common ones are large three-dimensional sculptures, some animal shaped sculptures elaborately composed of flowers, leaves and fruits of different plants according to design requirements, such as peacock, red crowned crane, panda, etc; Or symbolic sculptures with certain cultural connotation and city image, such as idiom allusion sculptures (learning to walk in Handan, dancing at the smell of chickens), Olympic seal, football World Cup, etc.