Urban street tree soil improving medium and application method thereof

A soil improvement and application method technology, applied in the direction of application, soil conditioning materials, soil lifting machinery, etc., can solve the problems of soil porosity reduction, unfavorable soil microbial plant new root generation, growth, soil bulk density increase, etc., to achieve improvement Soil physical properties, increase soil air permeability, and reduce the effect of soil pH

Inactive Publication Date: 2011-01-19
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, in the process of urbanization, a large amount of original topsoil has been continuously destroyed. Most of the soil matrix for street tree planting is artificial backfill, which contains a large amount of soil intrusions, such as gravel, lime, asphalt, construction waste, etc. One of the reasons for soil barrenness and alkalinization, which is not conducive to soil microbial activities and the occurrence and growth of new plant roots
Second, the hard covering on both sides of the road, coupled wit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1. Choose mandarin mandarin trees as the street tree species, a total of 30 trees. The age of the tree is 5-6 years, the diameter at breast height is 7-8cm, and the crown width is 2.5 meters. It has been planted for more than 2 years, and the growth condition is acceptable.

[0015] 2. Evenly mix natural zeolite and peat soil according to the weight ratio of 37%: 63% as a soil improvement medium.

[0016] 3. Calculation of application amount: the average crown width is 1.2kg per meter, the crown width is 2.5m, and the application amount per tree is 1.2kg×2.5m=3kg

[0017] 4. Divide 30 mosaic mandarin trees into two groups on average, called the improved group and the control group, and do the following treatments respectively: In the improved group, two 60cm long, 20cm wide and deep When ditching, pay attention to avoid the concentrated distribution area of ​​tree roots, spread the soil improvement medium evenly, and cover with soil. The control group also did the sam...

Embodiment 2

[0020] 1. Select 'Qiuyan' hybrid maple as the street tree species, a total of 30 trees. The age of the tree is 4 to 5 years, the diameter at breast height is 6 to 7 cm, and the crown width is 2 meters.

[0021] 2. Evenly mix natural zeolite and peat soil according to a weight ratio of 42%:58% as a soil improvement medium.

[0022] 3. Calculation of application amount: the average crown width is 2.0kg per meter, the crown width is 2m, and the application amount per tree is 2.0kg×2m=4kg

[0023] 4. Divide 30 'Qiuyan' hybrid maples into two groups on average, called the improved group and the control group, and perform the following treatments respectively: when the improved group is planted, the improved medium is directly and evenly mixed into the rhizosphere soil and the covering soil middle. The control group did not apply soil improvement medium when planting.

[0024] 5. After growing for one year, measure the soil physical and chemical property indexes and plant growth ...

Embodiment 3

[0026] 1. Select 'Sunset Red' Acer safflower as the street tree species, a total of 30 trees. The age of the tree is 6 to 7 years, the diameter at breast height is 9 to 10 cm, and the crown width is 3 meters.

[0027] 2. Evenly mix natural zeolite and peat soil according to the weight ratio of 40%: 60% as a soil improvement medium.

[0028] 3. Calculation of application amount: the average crown width is 1.4kg per meter, and the crown width is 3m. The application amount per tree is 1.4kg×3m=4.2kg

[0029] 4. Divide 30 'Sunset Red' safflower maple into two groups on average, called the improved group and the control group, and do the following treatments respectively: In the improved group, two 60cm long and wide 20cm, depth of 30cm ditch, pay attention to avoid the concentrated distribution of tree roots when ditching, spread the soil improvement medium evenly, and cover with soil. The control group also did the same treatment of ditching and soil covering, but no soil impro...

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Abstract

The invention discloses an urban street tree soil improving medium for promoting growth of urban garden street trees and an application method thereof in the technical field of soil improvement. The medium comprises the following components in percentage by weight: 35 to 45 percent of natural zeolite and 55 to 65 percent of turfy soil, wherein the natural zeolite is clinoptilolite, and the grain diameter ranges from 0.4 to 0.8 centimeter; and the pH value of the turfy soil is 5.0 to 5.9, the ventilation gap is between 27 and 29 percent, and the water-holding capacity is 52 percent. The medium can effectively improve the ventilation condition, pH value, nutrient condition and the like of the street tree soil in the urban gardens, and has good promoting effect on the growth of plants.

Description

technical field [0001] The invention relates to a medium in the technical field of soil improvement and its application, in particular to an urban street tree soil improvement medium for promoting the growth of street trees in urban gardens and an application method thereof. Background technique [0002] With the acceleration of urbanization and industrialization of human society, the rapid increase of urban population has brought a series of increasingly serious environmental and ecological problems. As an important part of the urban landscaping system, the soil habitat of street trees is affected by the rapid development of urbanization, and poor site conditions have become an important factor restricting the growth of new street trees. At present, the ecological problems in the soil of street trees are mainly manifested in the following aspects. First, in the process of urbanization, a large amount of original topsoil has been continuously destroyed. Most of the soil mat...

Claims

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Application Information

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IPC IPC(8): C09K17/40A01B77/00C09K101/00C09K109/00
Inventor 靳思佳车生泉周娴潘桂菱宁仁松
Owner SHANGHAI JIAO TONG UNIV
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