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A method for using alternative species and their combination to synergistically prevent and control Mikania

A technology of Mikania micrantha and species, applied in the field of plant protection of invasive plant prevention and control, can solve the problems of difficult to achieve ecological control and restoration, lack of competition and stress resistance of alternative species, achieve obvious ecological control and restoration effects, overcome population Restoration and reduction of control effect, prominent effect of ecological control and restoration

Active Publication Date: 2022-07-01
INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to investigate, evaluate and screen local plant resources of Mikania invasive habitats, further develop planting ratio, density, time and space combination research and development for alternative species with ecological value and economic value, and provide a method that utilizes local alternative species. The method of synergistic prevention and control of this major invasive plant and its combination, in order to overcome the lack of competition and stress resistance of existing alternative species, and the defects that it is difficult to realize ecological control and restoration

Method used

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  • A method for using alternative species and their combination to synergistically prevent and control Mikania
  • A method for using alternative species and their combination to synergistically prevent and control Mikania
  • A method for using alternative species and their combination to synergistically prevent and control Mikania

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Example 1 Investigation of native plants in the invasive habitat of Mikania micrantha in Yunnan Province

[0021] Survey method: From 2013 to 2016, 20 Mikania micrantha monitoring points were set up in Dehong, Baoshan, Lincang, Pu'er and Xishuangban (altitude range 324-1650 meters) in Yunnan Province, with 4 monitoring points in each area. Four types of invasive habitats, namely orchards, rubber plantations, secondary forests and wasteland, were set up at the same altitude, and the coverage of Mikania micrantha was 30-40%. Each sampling point was divided into 100 squares with a square of 10m × 10m, and the species, composition and occurrence of Mikania invasive plots were investigated and recorded. The main survey data and analysis indicators included: ① Density ( D) = the number of individuals of the target species in the plot / plot area (1m 2), relative density (RD)=(density of target species / total density of all plant species)×100; ②Frequency (F)=number of quadrat of...

Embodiment 2

[0022] Example 2 Determination and screening of the competitive advantage of native plants and Mikania

[0023] Test materials: Based on the investigation and analysis of native plants in the invasive habitat of Mikania in Yunnan in Example 1, 6 common and common native plants, including maple grass, crabgrass, rice bud grass, pig dung bean, mugwort and iron amaranth, were tested. The competitive effect of Mikania micrantha was further determined, evaluated and screened; the materials of both the native and invasive species Mikania micrantha H.B.K were selected from Zhefang Town, Mangshi, Dehong Prefecture, Yunnan Province; firstly, the test species were sown in the seedling trays and cultivated in the greenhouse spare.

[0024] Test method: Potted experiments were used to determine the competition between native species and the invasive plant Mikania, using relative yield (RY) (De Wit, 1960), relative yield total (RYT) (Fowler, 1982), and competitive balance Competitive bala...

Embodiment 3

[0042] Example 3 Determination of stress resistance of native plants and Mikania

[0043] Test material: According to Example 2, 4 species with competitive advantages over Mikania micrantha were screened and screened, Maple grass, Artemisia argyi, fenugreek, and dung bean. Further experiments were carried out under the conditions of different nutrients, water and fertilizers and Mikania micrantha to test its stress resistance; the seeds of 4 native plants and invasive plants Mikania micrantha were all collected from the shady resources expansion nursery in Mangshi, Dehong Prefecture, Yunnan Province, and were collected in 2017. In this research base (97°28'27" east longitude, 24°25'89" north latitude, 818.6 meters above sea level), the resistance experiment was carried out.

[0044] Test method: The experimental base used a 3×3m cement pond to carry out the impact test of mixed planting; respectively, the interaction test of four species of maple grass, mugwort, rice bud grass...

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Abstract

The invention discloses a method for using alternative species and their combination to synergistically prevent and control Mikania japonica. The synergistic ratio of native plant fenugreek and maple grass is 1.0:1.0-2.0, and the combined density is 10-12 plants / m. 2 It is reasonably planted in the occurrence plot of Mikania to inhibit its growth and reproduction; the invention significantly improves the substitution control effect of a single species on Mikania through the synergistic effect of the substitute species; the substitute species of Mikania is the use of its invading areas with relatively high-quality products. The strong stress resistance and competition of dung bean and maple grass are native plants with important value in the wasteland, orchard and rubber plantation invaded by Mikania; it provides an alternative species combination with a control effect of over 92.5% on Mikania The method improves the synergistic effect of a single replacement species by more than 35.7%, and overcomes the defects of the population recovery and the reduction of the control effect of Mikania micrantha after the replacement of a single species, the ecological control and restoration of the major alien invasive plants are outstanding, and economic benefits are obtained. and significant ecological benefits.

Description

technical field [0001] The invention relates to the technical field of plant protection for the prevention and control of invasive plants, in particular to a method for the synergistic prevention and control of Mikania by utilizing alternative species and combinations thereof. Background technique [0002] Mikania micrantha is one of the major invasive alien plants with wide distribution, serious damage and difficult control in my country ("List of Invasive Alien Species under National Key Management", 2012). This species originated in Central and South America and invaded Indonesia in the 1960s. It affects various agricultural ecosystems and natural vegetation ecosystems in South Asia and Southeast Asia (Zhang et al, 2009; Wu Huijing et al., 2010); Yunnan, Guangdong, Hainan and other places in my country have rapidly expanded and erupted in recent years, and are widely grown in farmland, orchard, wasteland and Forests, as well as various habitats such as roads, lakes, rivers,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/00A01G22/40
CPCA01G22/00A01G22/40
Inventor 张付斗申时才杨韶松徐高峰刘树芳金桂梅
Owner INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI
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