Method for controlling spartina alterniflora

A technology of Spartina alterniflora and mangroves, applied in the field of controlling Spartina alterniflora, which can solve the problems of uncertainty of marine ecological impact, huge investment, lack of safe, effective and lasting control of Spartina alterniflora

Active Publication Date: 2019-09-17
XIAMEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, manual cutting is time-consuming and labor-intensive, and will regenerate after cutting; the method of water storage and flooding has been successfully used in the Yangtze River Estuary, but it requires huge investment and will cause great disturbance to the marine ecosystem; chemical drug killing methods such as Spartina alterniflora can be effectively killed by using mulberry grass, but there are uncertainties in the impact on marine ecology and the problem of re-growth after killing; Guangdong Zhuhai successfully controlled Spartina alterniflora by using the fast-growing mangrove plant S. apetalum Grass, but because of the risk of ecological invasion because of the alien tree species introduced from Bangladesh, it is impossible to promote it on a large scale
Therefore, a safe, effective and durable method for controlling Spartina alterniflora has been lacking so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This example is used to illustrate the method for controlling Spartina alterniflora provided by the present invention.

[0026] (1) Root turning:

[0027] In May, cut off the above-ground part of Spartina alterniflora with a common sickle, leave stubble at a height of 5 cm, dig out the underground root system with a hoe to a depth of 30 cm, and bury the excavated above-ground part of Spartina alterniflora root system to a depth of 20 cm below the silt .

[0028] (2) Planting mangroves:

[0029] Candelabra hypocotyls (about 25 cm in length) are inserted into the area after root turning, wherein the depth of embedding of the hypocotyls is controlled at 1 / 3 of the total length of the hypocotyls, and the planting density of the hypocotyls is 1800 roots / mu. Half a year later, almost no Spartina alterniflora appeared under the candela trees.

Embodiment 2

[0031] This example is used to illustrate the method for controlling Spartina alterniflora provided by the present invention.

[0032] (1) Root turning:

[0033] In May, cut off the aboveground part of Spartina alterniflora with a common sickle, leave stubble at a height of 3cm, dig out the underground root system to a depth of 20cm with a hoe, and bury the aboveground part of Spartina alterniflora root system with feet to a depth of 20cm below the silt .

[0034] (2) Planting mangroves:

[0035] Tung flower tree bag seedlings are planted in the area after root turning, wherein, the planting density of Tung flower tree bag seedlings is 1500 plants / mu. Half a year later, almost no Spartina alterniflora appeared under the tung tree.

Embodiment 3

[0037] This example is used to illustrate the method for controlling Spartina alterniflora provided by the present invention.

[0038] (1) Root turning:

[0039] In April, use an ordinary sickle to cut off the aboveground part of Spartina alterniflora, leave stubble at a height of 8 cm, dig out the underground root system to a depth of 40 cm with a hoe, and bury the excavated aboveground part of Spartina alterniflora root system to a depth of 20 cm below the silt .

[0040] (2) Planting mangroves:

[0041]Insert the red sea olive bag seedlings into the area after root turning, wherein, the planting density of the red sea olive bag seedlings is 1200 plants / mu. Half a year later, almost no Spartina alterniflora appeared under the red sea olive.

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PUM

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Abstract

The invention relates to the field of the forestry, and discloses a method for controlling spartina alterniflora. The method comprises the steps of (1) root overturning, wherein the overground parts of the spartina alterniflora are cut off, stubbles with the heights of 3-8 centimeters are reserved, and the overground parts of the spartina alterniflora are overturned and buried in silt; (2) planting of a mangrove forest, wherein nursery stocks of the mangrove forest are planted in an area after root overturning in the density greater than or equal to 1000 plants per mu. The method for controlling the spartina alterniflora has the advantages that through the synergistic effect of a specific root overturning technology and a super-high density afforestation mode, the regeneration of the spartina alterniflora can be effectively inhibited; the spartina alterniflora is controlled by adopting the mode provided by the method, and an indigenous plant mangrove is utilized to replace the spartina alterniflora, so no ecological risk exists, and the problem of the biggest defect, namely, re-invasion of the spartina alterniflora of an existing spartina alterniflora prevention and control technology is completely eradicated.

Description

technical field [0001] The invention belongs to the field of forestry, and in particular relates to a method for controlling Spartina alterniflora. Background technique [0002] Spartina alterniflora, which was introduced from the United States in 1979, has already broken out in a large area on the coast of my country. In 2003, it was included in the first list of invasive alien organisms by the State Environmental Protection Administration (now the Ministry of Environmental Protection). Spartina alterniflora has strong adaptability, strong reproductive ability, rapid spread, and its ecological niche overlaps with mangroves, which has caused serious threats to mangroves in Zhejiang, Fujian, Guangdong and Guangxi. [0003] For the control of Spartina alterniflora, there are currently many methods, mainly including: manual cutting, water storage and flooding, chemical drug killing and plant substitution. Among them, manual cutting is time-consuming and laborious, and it will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00A01G17/00A01B79/00
CPCA01G13/00A01G17/005A01B79/00Y02P60/40Y02A40/22
Inventor 王瑁王文卿陈锦江
Owner XIAMEN UNIV
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