Ecological prevention and treatment method for reducing damage of diplodia pinea to pinus densiflora

A technology of red pine and dead shoots, which is applied to the ecological control of red pine and the prevention and control of pine dieback diseases, can solve the threats to the healthy development of plant communities, affect the stability of red pine secondary forests, and rampant diseases, and achieve accelerated The effect of spreading pathogenic bacteria, avoiding control residues, and reducing the occurrence of diseases

Active Publication Date: 2021-04-09
INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disease seriously affects the stability of the secondary forest of Scots pine and poses a huge threat to the healthy development of plant communities
[0005] The current measures to prevent and control pine blight are mainly chemical control. Although this method can quickly and conveniently prevent or treat pine blight, it is easy to cause pathogenic bacteria to develop resistance, pollute the environment, and cause the disease to flourish again.

Method used

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  • Ecological prevention and treatment method for reducing damage of diplodia pinea to pinus densiflora
  • Ecological prevention and treatment method for reducing damage of diplodia pinea to pinus densiflora
  • Ecological prevention and treatment method for reducing damage of diplodia pinea to pinus densiflora

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 Regulation of Pinus pinus dieback based on stand structure

[0043] (1) Allocation pattern of arbor species in the forest

[0044] The tree composition of the secondary forest of Red Pine in Kunyu Mountain was transformed, and the host Red Pine was mixed with other tree species——Quercus variabilis, Sophora japonica, Quercus spp. The proportions of Sophora japonica, Quercus japonica and A. chinensis reached 54.2%-55.2% of the total number of trees.

[0045] The tending and thinning operations were carried out in three stages. Thinning and tending objects are red pine with high density, weak tree vigor and poor living environment in the stand, and other tree species that grow well in the stand are reserved. The intensity of each thinning depends on the specific conditions of the stand and site. The general thinning intensity is The number of plants accounts for 9%-19% of the total number of plants before the first thinning. The thinning interval is 4 years, a...

experiment example 1

[0050] Experimental Example 1 Correlation analysis between tree species in the arbor layer and Pinus pinus dieback disease in the secondary forest community of Pinus kunyu in Kunyu Mountains

[0051] 1. Experimental method

[0052] 1.1 Overview of the research site

[0053] Kunyu Mountain (121°41′34″-121°48′04″E, 37°11′50″-37°17′22″N), located in the warm temperate deciduous broad-leaved forest area in the east of Shandong Peninsula, is the The area where the distribution of upper red pine is the most concentrated. Coniferous tree species include red pine, black pine, Huashan pine, larch and Chinese fir, etc.; broad-leaved tree species include Quercus variabilis, Cork oak, Saltwood and Sophora japonica, etc.; Understory plants include Huamulan, Cedarwood, Plum and Commelina Wait. The annual average temperature is 12.3°C, the annual precipitation is 800-1200mm, the annual average relative humidity is 62.6%, and the frost-free period is 200-220 days; the soil is mostly brown ...

experiment example 2

[0091] Experimental example 2 The experiment of determining the proportion of tree species in the secondary forest of Chinese pine

[0092] 1. Experimental method

[0093] According to the 120 temporary plots of Pinus pine secondary forest set up in Experimental Example 1, calculate the ratio of the sectional area at breast height of each tree species to the sectional area at breast height of all tree species in the plot to determine the stand type (less than 30% is pure forest, otherwise it is mixed forest) as Pinus chinensis - Mixed broadleaf forest, mixed pine-coniferous forest or pure pine forest. For each sample plot, according to the investigation of pine dieback disease in Experimental Example 1, the disease condition of pine dieback disease was analyzed. The occurrence of pinus dieback disease in red pine-broad-leaved mixed forest, red pine-coniferous mixed forest and red pine pure forest was compared. Screen out the representative plots in the lower disease forest s...

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Abstract

The invention discloses an ecological prevention and treatment method for reducing damage of diplodia pinea to pinus densiflora. The method comprises the following steps of mixing and matching other tree species which are in extremely remarkable negative correlation with the disease condition of the diplodia pinea of the pinus densiflora among the pinus densiflora, wherein the other tree species comprise any one or any combination of more of quercus variabilis, maackia amurensis, german oak or rhus chinensis. The ecological prevention and treatment method further comprises the steps of removing diseased plants, endangered trees or dead plants, fallen diseased leaves, diseased buds, diseased shoots, diseased branches and diseased fruits, removing understory shrubs and herbaceous plants, and trimming the diseased leaves, the diseased buds, the diseased shoots, the diseased branches and the diseased fruits. According to the method, the forest stand is changed to the direction unfavorable for occurrence and development of the diplodia pinea of the pinus densiflora by adjusting the structure of a plant community, the disease condition of the diplodia pinea of the pinus densiflora is rapidly reduced through physical measures, the disease condition of the diplodia pinea of the pinus densiflora is kept at a low level by combining the two measures, invasion of pathogenic bacteria of the diplodia pinea of the pinus densiflora to host pinus densiflora is effectively reduced, and stable and healthy development of a pinus densiflora secondary forest is maintained and protected.

Description

technical field [0001] The invention relates to a method for preventing and treating pine dieback disease, in particular to an ecological prevention and control method for reducing the damage caused by pine dieback disease to scots pine, and belongs to the field of ecological prevention and control of pine dieback disease. Background technique [0002] The total amount of forest resources in China is relatively large, but the per capita green area is less than one-third of the world average. In addition, forest resources are disturbed by various pests and diseases, making their maintenance and protection work face great challenges. Therefore, it is urgent to reasonably and effectively control the occurrence and development of pests and diseases. [0003] The secondary forest of Pinus densiflora in Mount Kunyu is the native place and distribution center of natural Pinus densiflora in China and even Northeast Asia. It has rich species diversity, genetic diversity and ecosyste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G23/00A01G13/00
CPCA01G23/00A01G13/00Y02A40/22
Inventor 梁军程元谢宪苑晓雯张星耀
Owner INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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