Method for constructing underground biomass model of urban relocation greening tree species

Abstract

The invention relates to the technical field of urban landscaping. The purpose is to avoid destructive excavation of root systems of greening trees. A reference basis is provided for construction of greening tree species root biomass models of other urban relocation places; the invention particularly relates to a method for constructing an underground biomass model of greening tree species of urban relocation places. The method comprises the following steps: screening root system volume evaluation indexes, carrying out dimensionless treatment on the evaluation indexes, establishing a multiplelinear regression equation to estimate the root volume, obtaining the underground biomass of the urban relocation greening tree species, and establishing a root biomass model by taking the root biomass of the urban relocation greening tree species as a dependent variable and the diameter at breast height as an independent variable. According to the method, the root biomass data is obtained by establishing the urban relocation greening tree species root volume evaluation model and combining the root density, and then the power function model of the greening tree species root biomass and the diameter at breast height is established, so that destructive excavation of greening tree species root systems is avoided, and a reference basis is provided for construction of greening tree species rootbiomass models of other urban relocations.

Description

technical field [0001] The invention relates to the field of urban greening technology, and aims to avoid destructive excavation of the root system of greening tree species, and provide a reference basis for the construction of root biomass models of greening tree species in other urban relocation sites, and specifically relates to an underground biomass of greening tree species in urban relocation sites How the model was built. Background technique [0002] With the acceleration of urbanization, the contradiction of the shortage of urban green land resources has become increasingly prominent, and 80-90% of urban green land is developed on urban relocation sites such as roads, residential buildings, and old factories. [0003] The greening tree species is an evergreen broad-leaved tree belonging to the family Lauraceae, with dense branches and leaves, large crown and thick shade, and majestic tree appearance. It is one of the main tree species for urban greening in Shanghai ...

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