Garden road is the skeleton and vein of the garden, which not only plays the role of a tour guide, but also produces a dynamic continuous composition on the sidewalk, developing a three-dimensional space into a four-dimensional space. A good garden road itself is a garden scenery. The artistic conception of "My road twists and turns and passes through a sheltered depression" and "seclusion" is created by plants. "Han Shu" contains: "The road is fifty paces wide, the tree is three feet high, the outside is thick, and the golden ball fruit is hidden, and the tree is a pine tree." It shows that the ancestors knew the plant configuration of the road as early as 2000 years ago. Garden roads are generally divided into main roads, paths and paths according to their nature and functions. Plants have corresponding configuration methods.

Plant configuration of main roads

The main road refers to the road leading from the entrance of the park to the scenic spots, main squares, main buildings, main scenic spots and the center of the management area. Because there are more tourists, there are fewer vehicles to manage when necessary, and its width should be 4 ~ 6 meters. Both sides of the road should be fully afforested to form the shading effect of trees passing through the crown. For flat and straight main roads, regular planting is often used, which is convenient for setting the opposite scene and forming a little perspective. For winding main roads, it is advisable to plant them naturally to make them have changes in density, height and openness, and use the turning point of the road, the posture of the trunk and the height of the crown to pull the field of vision into the road. Tree species on the roadside should choose beautiful trunk, dense crown and moderate height, which can play the role of picture frame. Such as Sapindus muftii, Sapium sebiferum, Cinnamomum camphora, Albizia Albizia, Pinus massoniana, etc. According to the number of tree species, it can be divided into the following three categories:

1. Single tree species configuration

According to the characteristics of a certain tree species, create a unique landscaping style to show the characteristics of a certain season. For example, Xiangzhang Road in the back hill of Huqiu, Suzhou, is shaded by the sun, fragrant and fragrant, and the summer heat disappears. Another example is Wuduzi Road next to the tennis court of Zhejiang Forestry College. In autumn, the leaves are golden yellow, such as dyed color map 15.

2. Configuration of two tree species

Using the differences in shape and color between the two tree species, or strewn at random, or the contrast between needles and broad leaves, rich and vivid artistic effects are produced. For example, in Bai Causeway, Hangzhou, peaches and willows alternate with each other. "Peach has appeared, but willow is not shaded" is a good picture of early spring in the south of the Yangtze River. Another example is the west section of Gushanling main road in Hangzhou. Pinus massoniana with a height of about 8 meters is planted on the north side of the steep slope, and Guanyin bamboo with a height of about 3 meters is planted on the stone slope in Lunan. Adjust measures to local conditions, uneven and dense. Matsuzaka is a friend of "two old people and one cold", which contains profound cultural heritage.

3. Multi-tree configuration

The trunk road that is too long should be equipped with different tree species according to different sections to make it rich and diverse, but the tree species in a section should not be too mixed to maintain the unity and harmony of varieties. Or give priority to a certain tree species, occasionally combine with other tree species, and seek change in unity. As the clouds rise from the bamboo trail, the scenic roads of more than 800 meters are mainly bamboo. Under the theme of "bamboo shadows towering", one or two tall Liquidambar formosana trees are planted every 50 ~ 100 meters, and peach blossoms are planted next to the Sanju Pavilion. This not only gives way to the saying that "the bamboo branches are full of branches, the clouds are deep, and the rocks are beautiful", but also makes the tall Liquidambar suddenly rise. Or among different tree species, one tree species keeps appearing, just like the main theme in music. For example, on the main road of fish watching in Huagang, Hangzhou, Magnolia grandiflora and Cedar were planted on the lawn, and crape myrtle, hemp leaf hydrangea and camellia were changed on the west side. Magnolia grandiflora appeared repeatedly and became the main tree species in this road, which left a deep impression on people.

Plant Configuration of Two-lane Road

The path is the auxiliary road of the main road, scattered in all districts, connecting the scenic spots and leading to the main buildings, generally 2 ~ 4 meters wide. Paths can use colorful plants to produce different interesting garden artistic conception.

1. Wild Road

In a quiet and natural environment with few people, it is suitable for the garden road to be equipped with natural and tall tree species, with rocks and thatched pavilions in between, resulting in the natural effect of "being made by people, just like nature". For example, there is a path through the natural jungle composed of Pterocarya stenoptera, Cinnamomum camphora and Prunus mume on the lawn of Hangzhou Liulang, which gives people a feeling of being in the wild.

2. Mountain road

Crossing the road in the mountain forest is quiet and deep, and it is very forest-like. For example, the stone road from Yongquan Pavilion at the back of Huqiu Mountain in Suzhou to Lanyuexuan runs down the slope and passes through the lush beech forest, which is deep and quiet. Gardening on the flat land can create the effect of forest by lowering the road surface, generating slopes and planting tall trees on the slopes. For example, in the dense forest area, Liquidambar formosana, Quercus acutissima, Shapu and Robinia pseudoacacia are planted on the slope with a height difference of 2 meters, which is quiet and deep, and the garden road has completely become a mountain road in the dense forest.

3. Bamboo path

Bamboo plants are a feature of the flora south of the Yangtze River in China, and they are often used in gardens. Bamboo diameter is a common technique, and it "leads me to wind through Yuzhu, where the green vines catch and hold my clothes", which has won people's appreciation. Tiger Hill in Suzhou, Moganshan in Deqing and Yun Qi in Hangzhou all have bamboo trails, especially the bamboo trail in Yun Qi, which is listed as the first of the ten scenic spots in the new West Lake and the first scenic spot in the lake and mountain. More than 3 meters wide road, through more than 20 meters high bamboo forest, winding more than 800 meters. Along the way, not only bamboo forests are swaying, but also the terrain is undulating, streams are gurgling and pavilions are decorated with ancient trees. On the whole path, there are both the profound elegance of "green bamboo shadows towering into the sky" and the rhythm change of the landscape, which makes tourists get great spiritual satisfaction 16.

4. Flower diameter

In a certain road space, all the flowers are beautiful to create an atmosphere, full of flowers and dazzling. Woody plants should choose trees with beautiful flowers and bright colors, or with fragrance and long flowering period, such as magnolia, cherry blossom, peach blossom and osmanthus. The cherry blossom trail of Qingdao Ocean University is a colorful picture with blooming spring flowers and blooming pink flowers. The peach blossom road in Hangzhou Botanical Garden is enchanting, like entering Wuling brocade. For herbs, it can change according to the seasonal changes. In the dense planting atmosphere, it is lined with background trees to form three-dimensional greening. For example, the right side of the entrance of Port-au-Prince Park in Hangzhou is planted with kale, which is red and yellow, lined with a green screen of pyracantha, with rich layers. For some gardens named after certain flowers, the flower diameter can be specially set, which is worthy of the name. Such as Shaoxing Lanting, orchids all the way, fragrant sleeves, endless aftertaste.

Plant Configuration in San Xiao Road

The path is mainly for walking and resting, and guides tourists to all corners of the garden, such as mountains, waterside and sparse forests. Arranged freely in many twists and turns, the width is generally around 1 m. All the paths in the forest have high density, which is very interesting in the mountains. For example, the path in the Herb Garden of Hangzhou Botanical Garden passes through Robinia pseudoacacia, Magnolia grandiflora and Camellia, forming a thick green curtain, which is deep and deep. In some artificial rock gardens, stone ramps decorated with shrubs and other low plants are often used to increase interest. For example, on the cobblestone road leading to the Peony Pavilion, books and grass are growing, cuckoos are humming, and magnolia is towering, rich and ancient.

Fig. 27 Path leading to fish-watching peony in Huagang, Hangzhou.