Method for building landscape forests of city outskirts in Pearl River Delta Region

Abstract

The invention discloses a method for building landscape forests of city outskirts in the Pearl River Delta Region. The method comprises the following steps that firstly, ecological reconstruction forests are built in a slope area on a ridge and in a slope area on a peak; secondly, ecological reconstruction forests and theme suit forests are built on the areas from a mountainside to the foot of a mountain, wherein 5-7 varieties of trees of the ecological reconstruction forests are selected and utilized every 100 mu of ecological reconstruction forests, and arranged in a randomly mixed mode, 1335-1665 plants are planted per hectare, and no more than 16 plants of single variety of trees are contiguously planted; large-block pure forests are utilized by the theme suit forests and arranged in a mixed mode, 510-1335 plants are planted per hectare, and the area of each large-block pure forest is controlled to be 0.2-0.3 hectare; thirdly, the varieties of trees of the theme suit forests are planted in a matched mode in the areas containing the foot of the mountain, the two sides of a road and human visual focus areas. The method is easy to operate, the basic function, namely soil fixation and water conservation, of the forests can be ensured, and meanwhile the visual landscape function can be highlighted while the forest aspect is quickly formed.

Description

technical field [0001] The invention belongs to the technical field of urban landscape forest matching and planting, in particular to a method for constructing urban suburban landscape forests in the Pearl River Delta region. Background technique [0002] Urban suburban landscape forest is a type of urban forest. This concept first appeared in the 1962 report on outdoor recreation resources of the Kennedy administration in the United States. However, due to the development of disciplines at that time, the depth of its research was limited. By the 1990s, with the development of 3S technology and the gradual recognition of "urban forests", "urban forests" became a focus of forest research in North America, Europe, Japan and other places (Li Haimei, He Xingyuan, Chen Wei, et al., 2004 ; Wang Mulin, 1995; Mcpherson E G, Rowntree R A, 1993). [0003] Foreign studies on urban forests are mainly divided into North American and European schools. The North American School focuses o...

AI Technical Summary

Problems solved by technology

Among them, the growth and survival of pine wood nematodes, pine round scales, pine caterpillars and slash pine mealybugs, forest fires, and excessive or irregular resin harvesting have been seriously affected; Affected by typhoon, drought and physiological factors, trees show symptoms of physiological decline such as dead ends, bald tops, and severe reduction in leaf volume; while eucalyptus trees planted in water source areas around rivers or visible areas of main roads are managed due to short rotations. Soil erosion and landscape function decline; Chinese fir forests are severely affected by the decline in soil fertility and lack of soil nutrients after multiple rounds of cultivation.