Spartina alterniflora is a perennial halophytic herb of the Poaceae familyPlants, the root system is well developed, and it is able to penetrate more than 1 meter underground. It has high efficiencyPhotosynthesisand the aeration system, there are salt glands on the leaves, which can discharge the absorbed salts, so they have a strong ability to resist flooding and salt. However, Spartina alterniflora is less drought tolerant and can only grow in the coastal intertidal zone. Spartina alterniflora is known for its strong growth capacity and has an extremely strong reproductive capacity, allowing mature seeds to drift with wind, waves, and tides after they have fallen off.
Once a suitable growth is foundenvironment, it can take root and sprout, and spread rapidly through rhizomes. As a result of these characteristics, Spartina alterniflora continues to expand in the coastal areas of our country and has become a serious oneInvasive alien species。The invasion of Spartina alterniflora has brought serious damage to China's coastal wetlands and ecological balance. It has not only contributed to the decline of native species biomass and biodiversity, but also to the silting of waterways and the occupation of tidal flats. Its invasion has been included in the "First Batch of ChinaInvasive alien specieslist" and "Focused ManagementInvasive alien speciesDirectory.
In response to the invasion of Spartina alterniflora, researchers at home and abroad have explored a variety of control methods, including:PhysicsControl, pharmaceutical treatment andBiological controlPhysicsControl is a common control method, including mulching, mowing, tillage, etcFireand flooding. However, these methods are time-consuming and labor-intensive, rightenvironmentIt produces a large disturbance and is easy to cause**. Pesticide control is the use of herbicides to exterminate Spartina alterniflora.
However, the effectiveness of this method is greatly affected by factors such as wind, tidal cycles, and the waxy layer covering the stems and leaves of the plant, and may also bringenvironmentRisk of contamination. Therefore, the problem that needs to be solved at present is to choose high-efficiency, low-toxicity and low-residue agents for treatment. Biological controlIt is one of the more feasible control methods for Spartina alterniflora. This method can be effective in the control of Spartina alterniflora for a long time, rightenvironmentThe impact is smaller. These include the introduction of natural enemies and the use of biological substitution control.
At present, China has achieved phased results in the management of Spartina alterniflora. Liaoning, Fujian, Shandong, Hainan and other places have completed the removal of Spartina alterniflora in the whole area, and are now in the stage of comprehensive management and ecological restoration. However, in order to achieve effective control of Spartina alterniflora, it is necessary to mobilize a wide range of public participation. If the public discovers the presence of Spartina alterniflora, it should be reported to the relevant authorities in a timely manner. Only through the extensive participation of the public can we better prevent and control the invasion of Spartina alterniflora and protect China's coastal wetlands and ecological balance.
Spartina alterniflora as a kind ofInvasive alien species, causing serious ecological damage in the coastal areas of our country. In order to effectively prevent the invasion of Spartina alterniflora, researchers have exploredPhysicsControl, pharmaceutical treatment andBiological controland other methods. At present, China has achieved certain results in the prevention and control of Spartina alterniflora, but it still needs extensive public participation to better achieve the governance goal. Through joint efforts, I believe that we will be able to restore the ecological balance of coastal areas and protect the precious coastal ecological resources.