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Layered covering method for soil on surface of tree holes

A surface soil and soil technology, applied in the field of landscaping, can solve problems such as poor water holding capacity, achieve the effect of maintaining water, benefiting the natural degradation process, and increasing soil nutrients

Inactive Publication Date: 2018-04-13
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to provide a kind of improvement method for the layered coverage of the tree hole surface soil for the existing trees, especially the layered coverage of the tree hole surface soil of the urban greening trees. The inventive method can maintain The loosening of the soil in the tree hole provides fertilizer for the trees, maintains the fertility of the soil in the tree hole, avoids the technical problems of compact soil structure and poor water holding capacity on the surface of the tree hole, and can realize the recycling of landscaping waste, supplemented by inorganic materials such as stones material, can play the role of water retention and fattening

Method used

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  • Layered covering method for soil on surface of tree holes
  • Layered covering method for soil on surface of tree holes
  • Layered covering method for soil on surface of tree holes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Embodiment 1 landscaping waste pretreatment

[0073] 1. Collection and classification of landscaping waste

[0074] Collection of trimmings (thinnings) of trees, shrubs and herbaceous plants, lawn trimmings, fallen leaves, branches, discarded grass flowers and weeds in gardens and flower beds produced in the natural or maintenance process of green plants in urban green land or suburban woodland The collected wastes are divided into three categories through source pruning classification and manual classification:

[0075] Class A: tree branches with a diameter ≥ 20cm; Class B: tree branches with a diameter < 20cm; Class C: leaves and grass and flower prunings.

[0076] 2. Crushing of waste

[0077] 2-1) Shredder treatment of Class A waste

[0078] Use a pulverizer (Henan Hongyun Woodworking Machinery Manufacturing Factory) to pulverize tree branches with a diameter ≥ 20 cm into wood fragments with a particle size of 3-10 cm and a thickness of 5-15 mm.

[0079] 2-2) P...

Embodiment 2

[0084] The composting treatment of embodiment 2 landscaping waste

[0085] 1. Mix finely divided branches with a particle size of 0-1 cm and leaves-flowers and grass scraps with a particle size of ≤0.5 cm and collected landscaping waste to make compost raw materials;

[0086] 2. Add urea to the compost raw materials, adjust the C / N ratio of the raw materials to 30 (the C / N ratio is usually 20-35); then add fermentation bacteria to the compost raw materials (Beijing Jingpuyuan Biological Engineering Co., Ltd.) and water, mix evenly to make compost waste materials, and then place the compost waste materials on the cement floor of the greenhouse with a space height ≥ 4m, and stack them into a pile with a bottom width of 1-1.5m, a height of 1-1.5m, and a length depending on the situation. Trapezoidal heap for composting; the weight ratio of the fermentation agent to the composting raw material (dry weight) is 0.5:100 (usually 0.1-1:100); the moisture content of the composting wast...

Embodiment 3

[0090] The carbonization treatment of embodiment 3 landscaping waste

[0091] Put the carbonized raw materials prepared in the examples (i.e. finely chopped branches with a particle size of 1-3 cm) into a carbonization furnace (Zhengzhou Chaoyuan Machinery Equipment Co., Ltd.), heat up to 160°C, and keep the temperature at 160°C. The moisture in the carbonized raw material is evaporated, and the carbonized raw material is dried; after drying for 6 hours (usually 5-8 hours), continue to heat up to 240°C (usually 160-280°C), and keep the temperature at 240°C (usually 160- Under the condition of 280°C), the carbonized raw materials are subjected to the first stage of carbonization treatment, so that the landscaping waste undergoes thermal decomposition reaction; after the first stage of carbonization treatment for 3h (usually 2-4h), continue to heat up to 500°C (usually 300-650°C), under the condition of keeping the temperature at 500°C (usually 300-650°C), carry out the second-s...

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Abstract

The invention discloses a layered covering method for soil on the surface of tree holes. The method includes the following steps that the soil on the surface of the tree holes is loosened, greenery waste compost in garden is added in the loosened soil, and the soil is leveled; the upper portion of the fertilizer-doped soil is covered with the greenery waste compost in the garden, greenery-waste charcoal, wood scraps and broken stone sequentially to form a fertilizer adding layer, a fertilizer retaining layer, a water retention layer and a protection layer. According to the method, the coveredsoil on the surface is similar as a forest litter structure, and the natural degradation of organic matter is facilitated. The layered covering method can greatly limit the growth of weeds, the stonescovering the surface serve as the protection layer, and thus the covering things can be prevented from being blown up by wind and flushed away by rainwater to a certain degree. The improved layered covering method not only can achieve recycling of greenery waste in the garden, but also can promote the healthy growth of border trees, maintain the green urban environment and reduce the management cost.

Description

technical field [0001] The invention relates to the field of landscaping, in particular to a layered covering improvement method for tree hole surface soil. Background technique [0002] Street trees are an important part of urban landscaping landscape, and the growth of street trees plays an important role in the landscape effect of urban roads. Shade trees are prone to withered and yellow leaves, slow growth, poor growth and even death during the growth process, which is closely related to the soil in the tree hole where they grow. The soil of tree holes, especially the surface soil of tree holes, often has problems such as low fertility, compact structure, poor water holding capacity, and poor permeability. Waste, etc. are often removed as garbage or even incinerated, but not returned to the soil. On the other hand, frequent human activities trample on the surface soil of the tree hole. Traditional improvement methods include loosening the soil and adding organic fertil...

Claims

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Application Information

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IPC IPC(8): A01G24/10A01G24/12A01G24/23A01G24/20
Inventor 李素艳曲炳鹏王心语熊凯毅崔萌孙向阳张骅贠炳辉张璐
Owner BEIJING FORESTRY UNIVERSITY
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