Measures to prevent biological invaders .

There are many relevant laws and related institutions related to the control of alien species in China, and these laws, regulations and organizational systems mainly focus on human health, pests and diseases and weed quarantine, and do not fully contain the relevant content of invasive species to biodiversity or ecological environment damage, and the goal of controlling alien species from the perspective of biodiversity conservation is still far away. At the same time, China has a vast territory and complex ecosystem types, and the transfer of species across regions in China has not received sufficient attention so far, and there are no rules and regulations to follow to manage the problem of regional species invasion. In fact, although China has taken some control measures for the introduction of the problem, it is far from establishing a complete set of invasive alien species control system, and has not paid sufficient attention to the early development, monitoring, early control and rapid response of invasive alien species.

Therefore, in order to protect the ecological environment and biodiversity, control alien species, formulate special laws on the prevention of biological invasion, and on this basis, formulate corresponding supporting laws and regulations, and form a complete set of laws and regulations suitable for China's national conditions and operable. Therefore, I believe that China should formulate the Law on the Prevention of Invasion of Alien Species and the Law on the Management of Invasive Species as soon as possible, and because of the great impact of invasive alien species, China should establish a unified management and coordination committee including agriculture, forestry, environmental protection, marine, **, quarantine, health, national defense, justice, education, scientific research and other national competent departments to comprehensively manage invasive alien species from the height of national interests. The core issue of the legislation is to strengthen and improve the assessment and approval system for the introduction of alien species.

How airports prevent biological invasions.

1. Establish a unified and coordinated management organization

Specific to China, we should set up a unified and coordinated management agency including quarantine, environmental protection, ocean, agriculture, forestry, scientific research institutions and other departments. This agency should proceed from the national interest, rather than the sectoral interest, to carry out the prevention and control of alien species in a comprehensive and integrated manner.

Before the introduction of alien species, the agricultural or forestry or marine management departments should conduct introduction risk assessments in conjunction with scientific research institutions, the environmental protection departments should make environmental assessments, and then the quarantine departments should carry out strict port checks, and multi-party coordinated actions should jointly and efficiently carry out the prevention and control of alien species.

2. Improve the risk assessment system

In order to prevent the invasion of alien species, the first task is to defend, and the risk assessment system of alien species is to strive to resolutely keep out the more harmful organisms in the first area at the first time.

1. Manual control: rely on manpower to catch alien pests or pull out exotic plants. Artificial control of citrus is suitable for those invasive species that have just been introduced and settled, and have not yet spread in a large area;

2. Mechanical or physical control: use specially designed and manufactured machinery and equipment to prevent and control harmful plants. Mechanical prevention of harmful plants is safe for the environment, and it can quickly kill alien plants within a certain range in a short time;

3. Substitution control: Substitution control is mainly aimed at alien plants, which is an ecological control method that replaces invasive alien plants with native plants with economic or ecological value according to the law of plant community succession;

5. Biological control: Biological control refers to the introduction of natural enemies from the origin of alien pests.

Routes: Mainly human activities, such as importing and exporting fruits, artificially carrying pets, flowers and plants, etc.

Features...In the context of internationalization, the genus of convenience.

Traffic, which inevitably leads to the intersection of species that would otherwise not intersect. It's hard to put an end to it.

Hazards: Once the environment is suitable, alien species breed because they have no natural predators, breaking the original food chain and bringing catastrophic harm to the local ecosystem.

Prevention and control methods: 1Enhance people's awareness of ecological defense. Some people don't know how powerful alien species are, and think it's nothing. Therefore, it is extremely important to strengthen the awareness of ecological defense.

2.For my use. Invasive species can be exploited, such as using water hyacinth as feed for pigs.

3.Hunting and killing. Don't show mercy, kill if you meet!!

For example, the famous Brazilian tortoise, as an invasive species, everyone can raise it, but don't release it! (I've seen others release Brazilian tortoises with my own eyes) Don't be merciful, the invading creatures should be wiped out.

4.Biocontrol. Introducing natural enemies from the place of origin of invasive species. This method works wonders, but it is also very dangerous and requires a rigorous analysis of its feasibility. After all, they are all invasive species, and if they fail to be introduced, they will add fuel to the fire, quench their thirst, and 、......kill themselves