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Method for building near-natural forest for subtropical city

A forest and natural technology, applied in the field of building subtropical urban near-natural forests, can solve the problems of seedling death, young leaves scorched, and lack of shade, etc., and achieve the effect of complete community structure, simple method, and easy construction

Inactive Publication Date: 2012-10-24
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the self-thinning effect and the inability to form regenerated individuals due to the lack of provenance in the surrounding area, P. chinensis and Hongnan are shade-tolerant species. Due to the lack of shade in the early planting period, young leaves were scorched and burned, causing a large number of seedlings to die.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The present invention carries out the planting experiment of constructing subtropical urban near-natural forest in Maqiao Horticultural Farm of Minhang District, and the evergreen broad-leaved arbor of the target species is 0.3-0.5 m in seedling height and 2-3 years of seedling age in Qinggang, Phoebe chinensis, and Castanopsis chinensis , camphor and privet are mixed in equal proportions; deciduous broad-leaved trees are 1.0-1.5 m in seedling height, and oak, alder, albizia, maple and sassafras are mixed in equal proportions at a seedling age of 4-5 years to plant. Evergreen broad-leaved trees and deciduous broad-leaved trees are mixed at a ratio of 7:3 to form a multi-layered community structure of different ages, and the density of the mixed community is 3 trees / m 2 , while the deciduous broad-leaved trees form the forest appearance, it provides shade for the initial growth of the target species of evergreen broad-leaved tree seedlings, so as to quickly construct the...

Embodiment 2

[0018] The present invention carries out the planting experiment of constructing the subtropical urban near-natural forest in the new campus of a certain university, and the evergreen broad-leaved arbor of the target species is a seedling height of 0.3-0.5 m, and the seedling age is 2-3 years old, such as Qinggang, Phoebe chinensis, Castanopsis chinense, Cinnamomum camphora and privet are mixed in equal proportions; deciduous broad-leaved trees are 1.0-1.5 m in seedling height and 4-5 years old Ailanthus sinensis, Chinese toon, southern jujube, white elm, sweetgum, sapindus and vitex Plant in equal proportions. Evergreen broad-leaved trees and deciduous broad-leaved trees are mixed at a ratio of 7:3 to form a multi-layered community structure of different ages, and the mixed community density is 4 trees / m 2 , while the deciduous broad-leaved trees form the forest appearance, it provides shade for the initial growth of the target species of evergreen broad-leaved tree seedlings...

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Abstract

The invention discloses a method for building a near-natural forest for a subtropical city. The method is characterized in that deciduous broad-leaf trees with seedling age as 4-5 years and evergreen broad-leaf trees with the seedling age as 2-3 years are adopted for building a different-age multiple-layer deciduous-evergreen broad leaf mixed near-natural forest. The lower layer of the mixed near-natural forest is evergreen broad-leaf trees with seedling height as 0.2-1.0 meter accounting for 70% of mixed biocoenosis, the upper layer of the mixed near-natural forest is deciduous broad-leaf trees with seedling height as 1.5-2.5 meters accounting for 30% of the mixed biocoenosis, a different-age biocoenosis structure is formed, and view of the near-natural forest for the subtropical city is fast built. Compared with the prior art, the method is simple, the near-natural forest is easy to build, low in cost, complete in biocoenosis structure, rich in diversity of species, high in biomass and less in manual management. The method is especially suitable for building the subtropical near-natural forest view for cities in a Yangtze river delta area.

Description

technical field [0001] The invention relates to the technical field of ecological environment design, in particular to a method for constructing a subtropical city near-nature forest. Background technique [0002] At present, my country's urban greening construction often adopts the construction mode of large-scale lawns, color blocks, nursery-style forests and forest belts, and mostly adopts large-scale seedlings and single-species pure forest methods in planting, which has a high degree of artificialization. The species and structure are single, the biodiversity and biomass are low, and the ecological benefits are obviously insufficient, and it is easy to cause large-scale pests and diseases, which will cause secondary pollution due to control. This kind of construction mode not only keeps the cost high, but also brings great pressure to the later maintenance. Therefore, there is an urgent need to build urban greening construction models and methods that are rich in variet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G23/00A01G1/00
Inventor 达良俊孙文郭雪艳宋坤
Owner EAST CHINA NORMAL UNIV
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