A list of the contents of this article:
- 1 、Native tree species
- 2 、What are the native tree species?
- 3 、What are the advantages of native tree species? What's the problem?
Native tree species
1. Native tree species refer to native tree species or exotic tree species that have been introduced for many years and have been performing well in this area, such as Robinia pseudoacacia, cypress, pine and so on. In a narrow sense, native tree species refer to the plants that can still grow healthily after long-term natural selection and withstand a series of natural disasters such as extreme climatic conditions, diseases and insect pests.
2. Native tree species refer to those that are naturally distributed in this area or have been introduced for many years and have performed well in this area. For example, cypress and poplar. Cypress characteristic Cypress is an evergreen tree or shrub with opposite leaves or 3-4 whorls of leaves, rarely spirally attached. The leaf shape can be scale-shaped or thorn-shaped, or even there can be two leaf shapes on the same tree. Globules unisexual, monoecious or dioecious, solitary branches apical or leaf axils.
3. Native tree species refer to those that grow naturally in a particular area, or those that have been introduced and adapted well in that area, although they originated in other areas. For example, Hongsen Robinia pseudoacacia, cypress, pine and so on, they are widely distributed in this area.
What are the native tree species?
Native tree species refer to the natural distribution of tree species in this area or exotic tree species that have been introduced for many years and have been performing well in the area, such as Robinia pseudoacacia, cypress, pine and so on. In a narrow sense, native tree species refer to the plants that can still grow healthily after long-term natural selection and withstand a series of natural disasters such as extreme climatic conditions, diseases and insect pests.
Native tree species refer to those that grow naturally in a particular area, or those that have been introduced and adapted and grow well in that area, although they originated in other areas. For example, Hongsen Robinia pseudoacacia, cypress, pine and so on, they are widely distributed in this area.
Native tree species refer to the natural distribution of tree species in this area or exotic species that have been introduced for many years and have been performing well in the area, such as cypress, Populus euphratica and so on. Cypress evergreen trees or shrubs. Leaves cross-opposite or 3-4 whorled, sparsely spirally inserted, scaly or spiny, or with two types of leaves in the same tree.
Native tree species mainly include the following species: pine species such as Pinus massoniana, Pinus elliottii and so on. Cypress species: such as Platycladus orientalis, Platycladus orientalis and so on. Cunninghamia lanceolata species: such as fir trees. In addition, there are camphor trees, ginkgo trees and so on. These tree species usually have the characteristics of strong adaptability and stable growth, and are widely distributed in the natural environment all over China.
Native pine species, such as Pinus massoniana, Pinus elliottii, etc., have strong adaptability, can grow in a variety of soil and climate conditions, and are widely distributed. Pine wood is hard and corrosion-resistant, so it is an excellent building and furniture material. Native cypress species, such as Platycladus orientalis, Platycladus orientalis, etc., also have strong adaptability and wide distribution. Cypress wood is of excellent material and resistant to decay, and is often used in landscaping and antiseptic treatment.
Native tree species are those that are naturally distributed in this area or have been introduced for many years and perform well in the area. Common native tree species include cypress, pine, locust, Hongsen Robinia pseudoacacia, Chun, maple, Populus euphratica, willow, ginkgo and Chinese fir. Cypress has a long history of cultivation in China, mainly distributed in the Yangtze River basin and its southern area.
What are the advantages of native tree species? What's the problem?
The advantage of native tree species lies in their strong adaptability, good resistance, economy, treasure and cultural value. However, the application of native tree species also faces some problems. The dominant region of native tree species: native tree species grow and multiply in a specific area and have the highest ability to adapt to the environment of this area. Adaptability: native tree species can adapt to bad habitat and simple management conditions, showing a stable greening effect.
Treasure: a considerable number of native tree species are in an endangered state, are precious and rare plants, and are listed as key objects of national protection. Bringing it down from the mountain and accelerating its reproduction as a greening material, it can not only protect and develop the resources of rare tree species, but also improve people's awareness of ecological environment. Economy: local tree species are convenient to obtain materials, easy to raise seedlings, avoid long-distance transportation, high survival rate, convenient management and low cost.
The local tree species with economic advantages have high survival rate, long growth cycle, and are more economical and practical. In contrast, exotic tree species need more human, material and financial resources to protect, the survival rate is lower, and the growth cycle is longer. Cultural value Local tree species are closely related to local culture and have profound cultural value and historical significance. The selection of native tree species for garden plants helps to protect the local cultural heritage and traditions.
The so-called native tree species generally refer to those that originally grew in the local area, or those that have grown there for a long time. Its characteristic is that it has been completely integrated with the local environment and coordinated development after the long-term test of local climate and soil conditions. It should be noted that the introduction must adhere to the experiment, and the popularization must be carried out step by step. Provenance selection should be emphasized to avoid failing to achieve the best introduction effect due to intraspecific differences.
However, in reality, we are often faced with the problem of shortage and scarcity of native tree species in urban greening. Decision makers and designers do not pay enough attention to this kind of native resources when planning, which leads to the use of native tree species does not form a virtuous circle. This is undoubtedly a waste of resources and ignores their important contribution to the environment and the community.
In addition, native plants also have significant economic benefits. Because of the rich provenance, local sampling can be realized, and the intermediate links in the process of transportation and planting can be reduced, thus the cost can be reduced. Finally, native plants can stabilize the local ecosystem. The blind introduction of exotic tree species may destroy the local ecological balance and cause diseases and insect pests, while native plants can maintain the stability of the ecosystem and avoid these potential risks.