Ask to write a 450-word composition about visiting Chen Shan Botanical Garden.

Introduction to Botanical Garden Shanghai Chen Shan Botanical Garden is located in the north of Songjiang New Town, Songjiang District, Shanghai, within the scope of Sheshan National Tourism Resort, starting from Sheshan Central River in the east, Chen Da Road in the west, Huachen Highway in the south, and Shenzhuan Highway (west of Chenshantang) and Shetiankun Highway in the north. It is about 1600 meters wide from east to west and about 1500 meters long from north to south. The planned area is 2,076,300 square meters. Shanghai Chen Shan Botanical Garden is a comprehensive botanical garden, which integrates scientific research, popular science and sightseeing, and is jointly built by Shanghai Municipal Government, China Academy of Sciences and State Forestry Administration. The whole park covers an area of about 207 hectares and consists of four functional areas: central exhibition area, plant protection area, five continents plant area and peripheral buffer area. There are 26 botanical gardens in the central exhibition area. The central exhibition area and the periphery of Chen Shan Plant Protection Area are surrounded by a green ring with a total length of 4,500m and an average height of 6m. The Green Ring not only shows the representative adaptive plants in Europe, Africa, America and Oceania, but also connects three buildings: a comprehensive building, a scientific research center and an exhibition greenhouse. Chen Shan Botanical Garden, with the theme of "Plants and Health", is not only a base for plant science research and popular science education, but also provides a scenic spot for the general public with flowers, waterfowl flying, endless fun and yearning. You will see a very different botanical garden. More than 200 hectares of Chen Shan Botanical Garden: A 4.5-kilometer-long "green ring" surrounds the park and is the peripheral structure of the word "garden". Standing on the green ring of 10 meters, the garden scenery in the whole "basin" is unobstructed: nearby is Chenshan Mountain with an altitude of 7 1.4 meters. In the "basin", the island is a special plant garden ... there is a pool of blue waves in the distance, along a winding cave. Going out, my eyes flew down, and tens of thousands of square meters of deep pit gardens appeared in front of reporters. Look at the completed botanical garden area, with 20 hectares of water network; Covering an area of 1.30 hectares, full of green, a garden of camphor trees, is planted with various exotic flowers and grasses everywhere. At present, Chen Shan Botanical Garden, with 9,000 species of plants, aims to collect 30,000 species of plants around the world, becoming a milestone project of the World Botanical Garden in 2 1 century. Shape: One ring, one mountain, two pits and several small islands. Chen Shan Botanical Garden has a unique terrain. Around the park is a huge "green ring", which is the outer frame of the word "garden". Not only defines the space inside and outside the park, but also makes the scattered land in the park form a whole. The "green ring" is a trapezoid more than 10 meters above the ground. They are all formed by piling up soil, and various facilities such as office buildings, ticket offices and restaurants are hidden in the trapezoid. Standing on the "green ring" with a circumference of 4.5 kilometers, the basin-shaped park is unobstructed. Plants flourish on Chenshan Mountain at an altitude of 7 1.4 meters, and plants flourish on Sheshan Mountain a little further away. The other radicals of the word "garden" represent the mountains, water and plants in the park. Chenshan Mountain is an isolated mountain in Sheshan Mountain System, with an oval base and an area of 20 hectares. Due to quarrying here for many years, artificial cliffs with a height of 50-60 meters have been formed in the southwest and east of Chenshan Mountain. There are two pits in Chen Shan Botanical Garden, which are "masterpieces" left by digging rocks underground. Now, after cleaning, the pit is filled with a pool of clear water. It is said that the deepest part is more than 20 meters. Although there is no pit depth of the Shenkeng Hotel, it is quite "deep". Because the rainwater flowing down from the mountain every year is equivalent to evaporated water, a certain water level is maintained in the pit all the year round. A considerable number of plants in the park are planted on small islands, forming a plant-specific garden. For example, the rose garden is the rose island, the fern garden is the fern island, and there are also willow island and fir island. The islands are connected by bridges or floating boards, and the lake that "contains" these islands is called "West Lake", which is very interesting. Each island has a different ecological microenvironment. When you set foot on a fern island, you will feel that the ground is wet, because most ferns like wet environment. Strange: Only 1 plant is left in the wild. For many years, Chen Shan Botanical Garden has been searching for plants that can be used as "treasures of town halls" all over the world. These "treasures" are mainly concentrated in rare botanical gardens and gardens in East China. In the rare botanical garden, there is an "inconspicuous" small tree, namely Acer truncatum. There are only 7 species of plants in Tianmu Mountain, no more than 200 species in the world, and 5 species in Chen Shan Botanical Garden. Even rarer is Putuo Carpinus, a deciduous tree unique to the flora of China and even East China. "Because the distribution is affected by human activities and geological evolution, the self-propagation rate of seeds is extremely low, and there are only 1 species of wild plants left in Putuo Mountain. Since 2005, Chen Shan Botanical Garden has been devoted to the technical research of artificial propagation of Putuo Carpinus, and has successfully obtained more than 40 sexually propagated offspring, and introduced them into the origin to cultivate its natural population. Other "treasures" in the Botanical Garden include Neolitsea Zhoushan, Red Bean Tree, Chimonanthus praecox, Chimonanthus praecox and Taxus chinensis. Meilai, Hamamelis, tapiscia sinensis, Dictyophora, Bole, Blueberry and Fokienia hodginsii, which are called "Buddha's Light Trees" by Zhoushan locals. Everyone: The goal is to collect 30,000 kinds of plants around the world. In the process of construction, Chen Shan Botanical Garden sent plant variety collection teams to all parts of the world, looking for all kinds of plants with economic, scientific and horticultural value. Now, there are 9,000 kinds of plants growing in every corner of the garden. The goal of Chen Shan Botanical Garden is to collect 30,000 kinds of plants. Because it is located in East China, the most growing plants in Chen Shan Botanical Garden are naturally East China. There are about 4000 species of plants in East China, some of which grow on high mountains and are difficult to collect. At present, Chen Shan Botanical Garden has 1500 species of plants in East China, making it the largest botanical garden in East China. There are many kinds of plants in the park, including Magnoliaceae, rose, cherry blossom, apple, iris, aquatic plants, xerophytes and herbs. Among them, there are some distinctive plants such as Neolitsea Zhoushan, which grow on the island. The greenhouse building in Chen Shan Botanical Garden is the highlight and symbol of the whole Botanical Garden. It consists of three independent greenhouses (A, B and C). The building areas are 55,265,438+0 square meters, 4,320 square meters and 2,767 square meters respectively. The upper part adopts reticulated shell structure, which forms the spatial whole stress system of aluminum alloy structure. The curtain wall has a unique shape and constitutes a light and magnificent picture. After the completion of three curved greenhouses at the end of this year, the plant species will be more abundant. Fun: drilling caves, watching waterfalls and enjoying the mine garden. Due to the unique terrain, Youchenshan Botanical Garden is quite interesting. After coming to Dongkeng at the foot of the mountain, you can see that there are rocks and medicinal plants everywhere at the foot of the mountain. They can grow in the cracks of rocks or in the harsh environment of mud and stones, and they are worthy of being tenacious rock plants. After visiting the Rock Medicine Botanical Garden, you can see an entrance in the mountain, from which you can cross the mountain and reach Xikeng. There is no hole in the mountain. This hole was blown out with dynamite. As soon as I entered the cave, I felt suddenly dark, and the light intensity was just enough for lighting. In the cave, there are enough roads for four or five people to walk side by side, and there are footsteps from time to time. The most steps are a row of more than ten steps, and the slope is not big. Just out of the cave, I looked up and saw a waterfall about 30 meters from the top of Chenshan Mountain "flying down" and falling into a deep pool, and suddenly it was filled with fog. After crossing the "first sight", I stepped on the slightly swaying pontoon bridge on the water, bypassed the island in the deep pool and came to another world-the mine garden. In the garden, February orchids and other grass flowers are in full bloom, and it is another scene to climb the "flower viewing platform" to enjoy the mine garden. Visitors can climb the top of Chenshan Mountain along the cliff plank road, overlooking the mine garden and deep pool, which is another kind of landscape. Blind people can also visit botanical gardens. In Chen Shan Botanical Garden, there is a botanical garden for the blind. It is shaped like a grain of rice, so it is called "one meter sunshine". The plants planted in the garden are non-toxic and spineless, but they have obvious olfactory characteristics and unique plant morphology. As long as you smell and touch it gently, with the help of listening to Chinese, English, Braille and phonetic systems, the blind can also know many plants. Chen Shan Botanical Garden was approved to cover an area of 207 hectares. Except for Chen Shan, which is 765,438+0.4m, the base is relatively flat, with rivers and highways divided. The planning idea of the design combination is to deconstruct the word "Yuan" in Chinese seal script, which is full of distinctive China characteristics. The outer frame of the word "garden" is designed as a green ring, which is used to define the space inside and outside the botanical garden and make the scattered land form a whole; The three parts respectively represent the mountains, water and plants in the Botanical Garden, which embodies the landscape characteristics of the water towns in the south of the Yangtze River. Chen Shan Botanical Garden serves the ecological construction in Shanghai, and its huge ecological benefits will be gradually reflected in the future. Botanical Garden Features Chen Shan Botanical Garden, the first collection museum of native plants in East China, focuses on the collection and display of native plants in East China. The long-term goal is to collect 30,000 kinds of plants. At present, more than 9000 kinds of plants with different characteristics have been collected, and the number of native plants in East China ranks first in the country. Since 2005, Chen Shan Botanical Garden has sent collection teams around the world to collect various plants with economic, scientific and horticultural values. Collect Magnoliaceae, Rosa, Cherry Blossom, Apple, Iris, Aquatic Plants, Xerophytes, Herbs, Economic Plants, Rare and Endangered Plants and Greenhouse Plants extensively, and maintain and record them in a scientific way. Among them, the collection of endemic plants on the island is a major feature of Chen Shan Botanical Garden. At present, the endemic plants in the island have been successfully collected, including Cinnamomum putuo, Litsea neolitsea, Quercus putuo and Vitex simplicifolia. It is not only a plant species with obvious protection significance, but also a wild species with strong ornamental value. Cinnamomum putuo and Neolitsea Zhoushan are evergreen trees of Lauraceae, which are unique islands and unknown native plants in Shanghai. They are only distributed in Zhoushan Archipelago, Sheshan Island and Jinshan Island in China and Zhejiang, and are of great value for studying the geographical evolution, flora status and endemism of East China Sea islands. Due to the narrow distribution and the activities of the islanders, the living conditions of these two plants in the wild are worrying. In order to fully understand its wild resources, in recent years, Chen Shan Botanical Garden has investigated its main distribution islands, carried out ex situ conservation research, and established an ex situ conservation site based on genetic diversity on the northern slope of Chenshan Mountain. These two plants grow well in the nature reserve. Among them, Neolitsea Zhoushan is called "Buddha's Light Tree" by local people because its new leaves are covered with reddish-brown hair and shine in the sun. With the promotion of local religious figures, this kind of tree is more and more recognized and protected by the island residents. Carpinus putuo is a deciduous tree in betulaceae, which is unique to the flora of China and even East China. Because the distribution of this plant is strongly influenced by human activities and geological evolution, the self-propagation rate of seeds is extremely low, and only 1 wild plant exists in Putuo Mountain, Zhejiang Province. Since 2005, Chen Shan Botanical Garden has been committed to tackling key technical problems of artificial reproduction, and has successfully obtained more than 40 sexually propagated offspring. Breeding a large number of offspring, returning to the place of origin and cultivating its natural population are the key points for the future research and protection of this species in Chen Shan Botanical Garden. Other endemic tree species in Chen Shan Botanical Garden are: red bean tree, Acer truncatum, Prunus humilis, Chimonanthus praecox and Taxus chinensis. Taxus chinensis var. mairei, witch hazel, cortex pseudolaricis, bole tree, orchid tree, Fokienia hodginsii, etc. Among them, Acer truncatum is a relic tree species, with 7 plants in Tianmu Mountain alone, no more than 200 plants in the world, and 5 plants in Chen Shan Botanical Garden. Witch hazel is a golden winter flower variety. He's adzuki bean tree is also a special plant in the Botanical Garden, which is widely called "adzuki bean tree" because of its red seeds. Its tall figure, rounded tree shape and evergreen seasons have become a landscape along the Chen Shan Lake. Specimen collection that highlights the basic details of the botanical garden has also achieved initial results. Up to now, 654.38+00000 wax leaf specimens have been collected. It will continue to increase with the collection of plants in the future. The 26 characteristic parks with their own characteristics are the core exhibition contents of the whole park. According to the basic setting of characteristic gardens in the World Botanical Garden and the geographical and climatic characteristics of Chen Shan Botanical Garden, there are 26 characteristic gardens (23 were initially built during the trial opening period, and the greenhouse will be opened to tourists at the end of 20 10). In the central plant exhibition area, by shaping unique habitats suitable for different plants, plants are collected, planted and landscaped to form rich landscapes with different styles, distinct seasons and different trails. Among them, mine garden, blind botanical garden, aquatic botanical garden and rock medicine garden are quite distinctive. Chen Shan used to be a place where building stones were mined. After the quarry on the west side was mined in the mountains, it was dug deep underground, leaving a deep pit in the quarry site. In the construction of Chen Shan Botanical Garden, according to the principle of ecological restoration, a mine garden with peculiar landforms, many mountains and waterfalls and four distinct seasons was built through the transformation of existing deep pools, pits, terraces and cliffs. The mine garden consists of Jinghu District, Taitai District, Wanghua District and Shentan District. Garden design combines post-industrial elements, Chen Shan culture and the characteristics of botanical gardens. Jinghu area reflects Chenshan Mountain, as if water and sky are the same color. Parts of Taiwan Province are covered with rusty steel plates and strewn at random with bluestone steps, showing the fortitude of rocks. Many ground cover flowers are planted in Wanghua District, and there are colorful flowers all year round. More than 65,438+0,500 kinds of plants have been planted in this area alone. The altar area is even more ingenious. There is a waterfall landscape with a hanging water curtain and mist, and below it is the deep pit of the quarry site. Visitors can walk down the winding cliff plank road from the entrance structure embedded in the cliff, visit the surface of the deep pool, cross the "first line sky" dug by Liang Shi, bypass the isolated island in the pool along the floating bridge, enter the mountain tunnel running through Dongyan Medicinal Botanical Garden, and enjoy the cliff along the way. The Botanical Garden for the Blind mainly serves the visually impaired and is shaped like a grain of rice. Therefore, it takes "one meter sunshine" as the theme, advocates humanistic care in a harmonious society, and highlights resource enjoyment, humanistic spirit and humanized concept. According to the needs of the blind, such as touch, hearing and smell, all kinds of plants with obvious olfactory characteristics, unique plant morphology and bright colors are planted in the park. Chinese, English, Braille and voice systems are reasonably set up in the park, roads for the blind are built to facilitate blind tourists to enter and leave the botanical garden, and barrier-free facilities such as handrails, kiosks and toilets suitable for the blind are provided. The mineral garden is located in the middle of the botanical garden, which is the biggest highlight of the botanical garden. Walking on the winding cliff plank road, I was immediately shocked by the spectacular landforms here. Looking up, it is a cliff nearly 100 meters high, and waterfalls pour down from the mountain; Looking down, it is a deep pit in the quarry site, and the water surface is quiet. Go straight, cross the "paradise scene" dug by Liang Shi, bypass the isolated island in the pool along the floating bridge on the water surface, enter the mountain tunnel running through the rock medicinal botanical garden in the east, and step on the strewn at random bluestone steps. The lake reflects Chen Shan, as if water and sky are the same color. Ground cover flowers are planted on the shore, and bloom is all year round. Chen Shan used to be a place where building stones were mined. After the quarry on the west side was mined in the mountains, it was dug deep underground, leaving a deep pit in the quarry site. According to the principle of ecological restoration, the Botanical Garden has been transformed into a mine garden with peculiar landforms, many mountains and waterfalls and distinct seasons through the transformation of existing deep pools, deep pits, terraces and cliffs. The rock medicinal botanical garden passes through the thrilling and interesting tunnel in the mountain and reaches another landscape style rock medicinal botanical garden. It used to be a quarry on the east side of Chenshan Mountain. At present, the exposed rock wall is to use rocks to change the terrain, create the terrain suitable for the growth of rocks and xerophytes, and combine the display and collection of medicinal plants to restore the landscape to form a rock medicinal botanical garden. Different shapes of rocks are interesting scenery in themselves. More interestingly, you can see some medicinal plants, rock plants and aromatic plants that you have never seen before. Some of them come from close domestic neighbors-Zhejiang, Jiangsu, Hubei, Anhui, Fujian, Hunan and other places, and some come from distant countries such as the United States, Germany and the Netherlands. Undoubtedly, they will add a touch of beauty to the fractured cliff. The Botanical Garden for the Blind left the Rock Medicinal Botanical Garden eastward and soon came to the Botanical Garden for the Blind, which is a special park mainly serving the visually impaired. In order to meet the needs of the blind, such as touch, hearing and smell, plants with obvious olfactory characteristics, unique plant morphology and bright colors were planted accordingly. In addition, the introduction in the park is equipped with Chinese, English, Braille and voice systems, and there are barrier-free facilities such as handrails, rest kiosks and toilets suitable for the blind. It is worth mentioning that the whole blind botanical garden is shaped like a grain of rice. This is based on the theme of "one meter sunshine", which expresses the humanistic care of a harmonious society and highlights the concept of resource enjoyment, humanistic spirit and humanization. Aquatic Botanical Gardens The waterscape of Chen Shan Botanical Garden is also a highlight. There is an aquatic botanical garden in the south of Chen Shan Botanical Garden, which is divided into ornamental aquatic plants pool, popular science education pool, floating plants pool, submerged plants pool, edible aquatic plants pool, Gramineae and Cyperaceae plants pool, Alismataceae heterophyllous plants pool and Nymphaeaceae plants pool. This is the most diverse and concentrated area of plants, and it is also the place with the most characteristics of Jiangnan water town. When the weather gets warmer, the water plants in the lake come back, and occasionally egrets fly by. What a vibrant school it will be. In addition, there is a children's botanical garden specially designed for children, which displays 50 rare and endangered plants at home and abroad and collects 500 roses.