Platycladus


Scientific name: Platycladus orientalis Franco

Family is: cypress arborvitae

Plant Category: Gymnospermae Evergreen Trees

Morphological characteristics:

The crowns are broadly ovate and the branchlets are flat and arranged in a plane. Leaves small, scalelike, clinging to twigs, arranged in opposite pairs, glands trough middle of leaf apical. Androgynous, flowers unisexual. The male globules are yellow and consist of interacting microspore leaves. Each microspore leaves 3 pollen sac, and the microspore mother cells within it produce many pollen grains without air-bags by meiosis.

The female globules only consist of four pairs of interacting bead scales, but only two pairs of bead scales in the middle have one or two upright ovules. The bead scales and scales completely healed. When the cones mature, the scales are lignified, cracked, and the seeds do not have wings or ridges.

The arborvitae arbors, trees up to 20 meters tall, sapling canopy ovate spires, old and wide round, leaves, branches flat, arranged in a plane, both sides of the same type. Flowering period 3 --- April, mature season 9 --- October.

Origin:

Platycladus orientalis is a special product of our country and is distributed throughout the country except Qinghai and Xinjiang. The longevity is often 100 years and over hundreds of years old trees. Has been selected as the city tree of Beijing.

Growth habits:

Platycladus orientalis is a temperate positive tree species, both cultivated and wild. Wet, fertile, fertile, well-drained, calcareous soils are resistant to cold, drought, and salinity. They grow on plains or on cliffs. On dry, ridged mountains, they grow slowly and are weak. Shallow root, but the lateral root is well developed, sprouting strong, pruning, long life, anti-smoke, anti-sulfur dioxide, hydrogen chloride and other harmful gases, widely distributed, is one of the most commonly used ornamental trees in China.

use:

Platycladus orientalis is one of the most widely used landscaping tree species in China. It has been planted in temples, mausoleums and gardens since ancient times. For example, in Beijing’s Temple of Heaven, large areas of Platycladus orientalis and cypresses form a strong contrast with Huangfuyu, Hanbanyu railings, and Qingzhuan Road. This fully highlights the main building and expresses the theme of the idea. The large area of ​​arborvitae creates an atmosphere of silence and tranquility, while the Hall of Prayer for Good Harvests, Emperor Yongyu, and Tianqiao echo the cypress wall in architectural form and color, and skillfully expresses the theme of “The Earth and the Sky Spirit”.

The oriental arborvitae is long-lived and beautiful. For example, Xuanyuan Temple of Huangling County in Shaanxi Province is one of the eight scenic spots in the area. The tree is as high as 19 meters and the diameter at breast height is about 2 meters. It is estimated that the tree age is more than 2700 years. The recently popular species of Platycladus orientalis, such as “Thousands of Sagittaria and Thousand-headed Cypress”, and “Golden Leaf Thousand Heads of Cypress”, have been prominently projected in the allocation of color blocks in urban green belts, and “gold leaf privet” and “red-leaf hibiscus”. , "Safflower wood" and other yellow fight purple fight, shine.

Platycladus orientalis is a tree planting species on the sunny slopes. It is also a common garden greening species. Wood can be used for construction and furniture, etc. Leaves and branches can be used as medicines to stop bleeding, diuretic and stomach, and detoxify and dispel stumps; seeds are soothe the nerves, nourishing and strengthening. effect.

Seed:

Select 20-30-year-old or more healthy tree seed collection. The seeds matured in the September-October period, and the seeding rate was about 10%. About 45,000 grains per kilogram.

Nursery:

Sowing from mid-September to mid-October. Before sowing, soak in warm water for 12 hours. Place inside the basket, place leeward sunny place, rinse with water once a day and turn frequently, when there is

Half of the split mouth can be sown. Drilling or broadcast sowing, 10 kg per mu. Keep the seedbed moist after sowing and top-dressing with irrigation.

afforestation:

Planting seedlings and afforestation use fish scale pits, narrow terraces, horizontal terraces, and horizontal trenches. Spring, autumn and rain can be planted in three seasons, and afforestation is easier to survive in the rainy season. Should create

Mixed forests can be mixed with cypress wood, ingot maple, berberine, skunk and other ribbons. It can also be mixed with Astragalus, Amorpha fruticosa or other plants.

management:

Every year after afforestation, 2-3 times of weeding is performed every year to promote growth.

Machine Dried Kelp

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