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Plant community collocation method used for compact soil repair

A plant community and soil remediation technology, applied in the fields of soil remediation and environmental protection, can solve the problems of reducing the total porosity of the soil, affecting the absorption of plant roots, and excessive soil bulk density, so as to improve the level of sustainable utilization, improve the soil aggregate structure, The effect of high plant survival rate

Inactive Publication Date: 2016-09-07
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to long-term investigation and analysis, it is found that most of the garden soil has a bulk density of more than 1.4, and some of the bulk density can even reach more than 1.7, resulting in a greatly reduced total soil porosity and increased soil hardness, which seriously affects the growth of plant roots and the content of nitrogen, phosphorus, potassium and other elements. Absorption, excessive soil bulk density even affects the absorption of water by plant roots, directly prompting plant death

Method used

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  • Plant community collocation method used for compact soil repair
  • Plant community collocation method used for compact soil repair

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Example 1 is located in Yaojiadang, Nanhu District, Jiaxing City, Zhejiang Province. The soil type is silty clay and compacted. After testing, the soil hardness is 110-160 N / cm 2 , the soil bulk density is 1.55-1.7g / cm 3 (moisture content 15%-25%), the total porosity of the soil is 28%-39%, and the soil compaction is classified as tighter soil-compact soil type. The purebred color-block planting mode of Pyracantha, Jinsen Ligustrum, Narrow Leaf Ten Merits, and Yinji small wax shrubs is selected in full light, with a planting area of ​​100m each 2 . After 12 months of planting, statistics were made on the changes in plant growth and soil properties. The statistical results are shown in Table 1:

[0018] Table 1 Adaptability of plants in compact soil 1

[0019]

[0020] As shown in Table 1, the survival rates of Pyracantha, Jinsen Ligustrum, Narrow Leaf, and Yinji Xiaowa are all above 95%. Adaptability; at the same time, the soil compaction is improved, the total s...

Embodiment 2

[0022] Example 2 is located around Taihu Lake in Suzhou City, Jiangsu Province. The soil type is silty clay. After testing, the soil hardness is 95-140 N / cm 2 , the soil bulk density is 1.45-1.6g / cm 3 (moisture content 15%-25%), the total porosity of the soil is 30%-42%, and the soil compaction is classified as tighter soil-compact soil type. The mixed species mode is selected, A. safflower + A. safflower, Yanhonggui + Ophiopogon japonicus model. A. safflower is the upper layer of the community, A. safflower and A. safflower are the second layer, and A. safflower is full light , Yanhonggui is shading 15%, and Ophiopogon japonicus is the third layer, shading 35%. After 12 months of planting, statistics were made on the changes in plant growth and soil properties. The statistical results are shown in Table 2:

[0023] Table 2 Adaptability of plants in compact soil 2

[0024]

[0025] As shown in Table 2, the survival rates of Hopixiang, Safflower, Yanhonggui, and Liedong a...

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Abstract

The invention provides a plant community collocation method used for compact soil repair. The plant community collocation method comprises steps such as soil assessment, plant selection, plant community construction and the like. The plant community collocation method has the advantage of being capable of being directly used for compact soil repair and landscape construction without being improved by other loose substrates and organic matters; the collocation method has improvement effect on a soil aggregate structure, so that original land can be in normal use 3-5 years later by virtue of the use of the method; and according to the plant collocation method, the plant survival rate is high, the growth vigor is good and the landscape property is strong.

Description

technical field [0001] The invention belongs to the fields of soil restoration and environmental protection, and in particular relates to a plant community configuration method for compacted soil restoration. Background technique [0002] With the acceleration of people's development process, the dumping of construction waste, etc. makes the urban garden soil have a high content of artificial coarse bone, and the degree of compaction of developed soil is serious. When humans are looking for new land resources, immature raw soil and long-term exposure Water disturbance, silty soil with compact soil structure, etc., have gradually become new targets for human development. According to long-term investigation and analysis, it is found that most of the garden soil has a bulk density of more than 1.4, and some of the bulk density can even reach more than 1.7, resulting in a greatly reduced total soil porosity and increased soil hardness, which seriously affects the growth of plan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/10B09C1/00
CPCB09C1/00B09C1/105B09C2101/00
Inventor 卢山陈波李娜蒋静静王菲林郁王丽茜
Owner ZHEJIANG SCI-TECH UNIV