Today we discuss the future development trend of seedlings from the perspective of "what to plant".
What are the main trends in the development of the seedling market?
Evergreen type of the four seasons
Although in recent years, on the basis of greening, the addition of colored leaf tree species, and all places are advocating urban color construction, a variety of color leaf tree species for a while, but although the color of color leaf tree species is diverse, but the fatal flaw is that the seasonality is too obvious. Moreover, urban and rural greening pays attention to diversification, colored leaf tree species need to be planted, and evergreen tree species will not be ignored.
In most parts of the mainland, there are four distinct seasons, long leaves bloom in spring and summer, leaves fall in autumn and winter, and once spring and summer, the trees are depressed and full of desolation. The presence of evergreen trees makes up for this lack of greening caused by the seasons.
Tree species can generally be divided into the following categories:
1. Deciduous species: beech tree, national locust, white ash, five-pointed maple, catalpa tree, black oak, luan tree, no seed, catalpa tree, etc.
2, semi-evergreen categories: Zhongshan cedar, moon season, rhododendron, etc.
3. Evergreen tree species: Thousand Head Cypress, Sprinkled Cypress, Handi Cypress, Paved Cypress, Creeping Cypress, Staghorn Juniper, Heather, Red Leaf Heather, Small-leaved Boxwood, Golden-leaf Boxwood, Golden Heart Large-leaved Boxwood, Silver-edged Large-leaf Boxwood, Japanese Privet, Anchovy Orchid, Yulan, Jiaodong Wei Spear, Hokkaido Boxwood, etc.
4. Bamboo: bamboo, purple bamboo, light bamboo, large-leaf bamboo, gold-inlaid jade bamboo, early garden bamboo, etc.
Purification, greening type
This tree species has obvious roles in sterilization, disinfection, purification, adsorption, etc., and is mostly used for greening and purifying the environment.
1. Anti-sulfur dioxide tree species: large-leaved boxwood, bird's tongue boxwood, melon seed huangyang, sea tree, mosquito mother, camellia, citrus aurantium, palm, anchovy orchid, crab orange, leaflet ming, masson pine, tsubaki tree, diamond Tianyang, yellow flower oleander, wolfbone, etc.
2. Chlorine-resistant tree species: cypress, cypress, large-leaved boxwood, sea tree, white wax, eucommia, pachyderm, mulberry, willow, wolfberry, bauhinia, palm, tree, hibiscus, wisteria, magnolia, tamarind, acacia, soap pod, national locust, etc.
3. Hydrogen fluoride resistant tree species: cypress, saponaria, national locust, tamarind, boxwood, melon seed boxwood, dragon cypress, tree, pu tree, pomegranate, mulberry tree, toon, silk cottonwood, Qinggang oak, casuarina, etc.
4. Resistant to ethylene tree species: oleander, plane tree, anchovy orchid, palm.
5. Ammonia-resistant tree species: Privet, camphor, silk cotton, heather, pomegranate, pupa tree, fig, saponaria pod, hibiscus, ziwei, magnolia, magnolia, etc.
6. Anti-nitrogen dioxide tree species: cypress, willow, rough leaf tree, mosquito mother, paulownia, privet, camphor tree, tree structure, magnolia, ailanthus, fig, mulberry, etc.
7. Anti-ozone tree species: loquat, plane tree, maple poplar, holly, forsythia, hydrangea, goosefoot, locust, camphor tree, green oak oak, privet, oleander, etc.
8. NOx-resistant tree species: holly, large-leaf camphor, pachyderm, luohan pine, ailanthus, paulownia, oak, mandarin, purple locust, etc.
9. Anti-soot tree species: fragrant tree, coarse oak, oleander, triangular maple, mulberry, purple weed, plane tree, paulownia, gardenia, national locust, thick-skinned incense, etc.
10. Tree species with strong dust retention ability: coral tree, heather, oleander, thick-skinned incense, wolfbone, beech tree, ailanthus tree, national locust, plane tree, camphor tree, banyan tree, phoenix tree, etc.
ecotype
The task of afforestation in the mainland has changed from cultivating timber resources to restoring ecosystems and improving forest quality, and large-scale ecological restoration projects are currently being carried out throughout the continent, and the green seedlings used must not only have super environmental adaptability, but also ensure the survival rate and ecology.
Ecological restoration projects are mostly carried out in coastal areas, saline-alkali land, wetlands, rivers and lakes, hills and barren mountains, and arid and barren land. In order to ensure the survival rate and the life span of the forest in these places, it is necessary to choose tree species with strong resistance to stress, that is, suitable tree species with strong adaptability, strong disease resistance and resistance to various natural disasters.
Ecological restoration, native tree species are the first choice, they have a strong genetic resistance factor, is the result of thousands of years of natural selection, to the local extreme conditions such as extreme low temperature and high temperature, with other tree species can not match the resistance. Therefore, adapting to local conditions, adapting to trees, vigorously developing local tree species, and taking the ecological route are the basic directions for the adjustment and transformation of seedlings.
Economical
Economic tree species are "trees whose main purpose is to produce fruits, edible oils, beverages, spices, industrial raw materials and medicinal herbs". It is not only suitable for farmers to operate, but also can be planted on a large scale, in addition to beautification and greening functions, it can also form a large-scale market effect and economic benefits in a relatively short period of time.
According to the requirements of the "Forestry and Grassland Industry Development Plan (2021-2025)", focus on ensuring the safety of national grain and oil, and promote the construction of woody oilseed production bases. Promote the adjustment of tree species structure, variety improvement and base construction, and do better and stronger characteristic fruits, woody grains and oils, woody spices, forest source feed and other industries. Combined with the construction of advantageous zones for agricultural products with Chinese characteristics, cultivate characteristic economic forest industry clusters. Build an online and offline production and marketing docking platform, promote the construction of the Shanrong Business Lint Product Pavilion, and run the Chinese Farmers' Harvest Festival Economic Forest Festival. By 2025, the planting area of economic forests will reach 650 million mu, and the total output of various types of economic forest products will be stable at more than 200 million tons; The planting area of woody oilseeds is about 270 million mu, and the annual output of woody edible oil is 2.5 million tons.
Economic forest tree species such as camellia oleifera, walnut, olive oil, chestnut, jujube, persimmon, apricot, korean pine, hazelnut, apple, citrus, peach, peppercorn, star anise, goji berries, etc. can be properly developed, which can be used as landscaping tree species and can also have economic value.
Cup seedlings, grass flowers, etc
Because grass flowers and plants are fast, have a long viewing period, and are easy to form a large-scale group landscape, grass flowers are often used as decorations in many large-scale activities and landscape projects. Moreover, some grass and flower varieties have strong adaptability and stress resistance, and play an increasingly important role in landscaping, which is an indispensable part of the landscape.
For example, flowers such as chrysanthemums, Dutch chrysanthemums, golden chrysanthemums, celestial chrysanthemums, echinacea, jerusalem artichokes, fallen brides, bluebells, etc.; The flowers planted in the molded flower beds should be small and dense, and it is advisable to prune them, and some small chrysanthemums, Dutch chrysanthemums, sedum and other root flowers can be planted.
The market demand for grass and flowers is large, followed by the demand for flower fertilizer and cultivation technology and supporting facilities, only in this way can we ensure that our products have enough competitiveness in the market.
Three-dimensional green type
At this stage, urban greening construction tends to expand green space. The form of space greening includes balcony beautification, roof greening, vertical greening and other main forms, as well as other new forms such as three-dimensional flower stands and three-dimensional flower walls.
The greening seedlings of these expanded spaces play a non-negligible role in resisting market risks. Some rattan varieties and climbing plants will surely sell well, such as wisteria, lingxiao, ground brocade, ivy, bougainvillea, etc., and have become the preferred varieties in three-dimensional greening.
The selection principle of three-dimensional greening plants: drought-tolerant and cold-tolerant plants; Positive, barren-tolerant shallow-rooted plants; Wind-resistant, lodging-resistant, water-resistant plants; Evergreen plants that can overwinter in the open in winter; Plants that are easy to plant, resistant to pruning, and grow slowly; Try to choose local plants and appropriately introduce new varieties of greening. For example: alum root, coleus grass, peacock grass, five-colored plum, beauty cherry, Phnom Penh broad-leaved wheat winter, etc.; Hanging morning glory, ivy, flower and leaf vine, flower and leaf stone, golden stone, fu fang vine, etc.; Duck foot wood, tortoise shell holly, melon seed boxwood, large-leaved boxwood, octagonal gold plate, etc.; Silver hime small wax, safflower ebony, red leaf nantian bamboo, Kanemori Privet, Bright Golden Privet and so on.
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