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A method of constructing agricultural non-point source pollution ecological prevention and control plant community with myrtle as dominant species

A technology of agricultural non-point source pollution and plant community, which is applied in the field of building agricultural non-point source pollution ecological prevention and control plant community, can solve the problems of unsatisfactory water quality compliance rate, discontinuous discharge, scattered sources of non-point source pollution, etc., and achieve a good landscape Aesthetic function, low running cost, low construction cost effect

Active Publication Date: 2021-07-27
SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Non-point sources include line sources and area sources, that is, pollution discharge sources that discharge discontinuously into the environment and cannot obtain water quality improvement by general sewage treatment methods, produced by rainfall, surface runoff, drainage, seepage or atmospheric deposition, in Into surface water and groundwater in a large range and enriched in large quantities, leading to water pollution
Compared with point source pollution, non-point source pollution has scattered sources, wide distribution area, difficulty in identifying the location of occurrence, strong randomness, complex causes, and long incubation period
Practice has shown that the water quality compliance rate of various water bodies is still unsatisfactory with the simple control of point source pollution. Therefore, with the strengthening of the control of point source pollution in my country's water environment, agricultural non-point source pollution has become a threat to the ecological security of the water environment and a constraint. The Primary Factors of my country's Agricultural Sustainable Development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] On June 7, 2018, the plant community for the ecological prevention and control of agricultural non-point source pollution was constructed at the Wushan Ecological and Environmental Practice Base in Guangzhou City, Guangdong Province, including the following steps:

[0021] 1. Site selection. In the Wushan Ecological and Environmental Practice Base in Guangzhou City, Guangdong Province, a gentle slope of 10 degrees was selected, with a length of 30 meters and a width of 10 meters.

[0022] 2. Soil requirements. The soil of the site is yellow loam, which requires deep, loose and well-drained soil.

[0023] 3. Plant collocation. In terms of spatial plant collocation, the plant community in this construction includes a shrub layer and a herb layer, the shrub layer is on the upper layer, and the herb layer is on the lower layer. Myrtle (Rhodomyrtus tomentosa) is the dominant plant species in the shrub layer. Myrtle is an evergreen shrub in the family Myrtaceae. Nephrolep...

Embodiment 2

[0031] On June 27, 2018, the plant community for the ecological prevention and control of agricultural non-point source pollution was constructed at the Wushan Ecological and Environmental Practice Base in Guangzhou City, Guangdong Province, including the following steps:

[0032] 1. Site selection. In the Wushan Ecological and Environmental Practice Base in Guangzhou City, Guangdong Province, a gentle slope of 30 degrees was chosen, with a length of 50 meters and a width of 50 meters.

[0033] 2. Soil requirements. The soil of the site is acidic red soil with a pH of 6.1-6.7, which requires deep, loose and well-drained soil.

[0034] 3. Plant collocation. In terms of spatial plant collocation, the plant community in this construction includes a shrub layer and a herb layer, the shrub layer is on the upper layer, and the herb layer is on the lower layer. Myrtle (Rhodomyrtus tomentosa) is the dominant plant species in the shrub layer. Myrtle is an evergreen shrub in the fami...

Embodiment 3

[0042] On July 9, 2018, the plant community for the ecological prevention and control of agricultural non-point source pollution was constructed at the Wushan Ecological and Environmental Practice Base in Guangzhou City, Guangdong Province, including the following steps:

[0043] 1. Site selection. In the Wushan Ecological and Environmental Practice Base in Guangzhou City, Guangdong Province, a gentle slope of 30 degrees was selected, with a length of 50 meters and a width of 100 meters.

[0044] 2. Soil requirements. The soil of the site is acidic red soil with a pH of 6.1-6.7, which requires deep, loose and well-drained soil.

[0045] 3. Plant collocation. In terms of spatial plant collocation, the plant community in this construction includes a shrub layer and a herb layer, the shrub layer is on the upper layer, and the herb layer is on the lower layer. Myrtle (Rhodomyrtus tomentosa) is the dominant plant species in the shrub layer. Myrtle is an evergreen shrub in the fami...

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Abstract

The invention discloses a method for constructing a plant community for the ecological prevention and control of agricultural non-point source pollution with myrtle as the dominant species. The agricultural non-point source pollution ecological prevention and control plant community constructed by the present invention can effectively increase the surface runoff time by 1.1-1.5 times, and can reduce suspended solids by 46.3-65.7%, 46.3-65.7%, and The total nitrogen is 41.8-20.3%, and the total phosphorus is 22.6-30.9%, which can effectively prevent and control non-point source pollution, and at the same time have good landscape aesthetic functions and obvious ecological benefits. The method of the invention is simple and easy to implement, and the construction cost and operation cost are both low. The method of the invention provides a new approach for ecological prevention and control of non-point source pollution, and is suitable for popularization and application in the fields of ecological prevention and control of non-point source pollution, water environment protection and the like.

Description

Technical field: [0001] The invention belongs to the technical field of agricultural non-point source pollution control and water environment treatment, and specifically relates to a method for constructing an ecological prevention and control plant community for agricultural non-point source pollution with myrtle as the dominant species. Background technique: [0002] With the continuous deepening of human economic activities, water pollution has become a global environmental problem, which has been highly valued by the environmental protection departments of governments. Traditionally, water environmental pollution sources are divided into point sources (PS for short) and non-point sources (NPS for short) according to the type of pollution. Point sources usually have a fixed discharge location or a sewage outlet, and are discharged in a centralized manner, such as industrial wastewater and domestic sewage. Non-point sources include line sources and area sources, that is, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00A01G22/00
CPCA01G17/005A01G22/00
Inventor 熊秉红
Owner SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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