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Method for constructing near-nature plant community for preventing and controlling non-point source pollution

A plant community, non-point source pollution technology, applied in forestry, application, agriculture, etc., can solve problems that have not yet been discovered, and achieve the effect of exerting ecological benefits, reducing or removing non-point source pollution, and good landscape aesthetics.

Active Publication Date: 2013-04-17
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0024] This embodiment 1 is implemented under the following conditions of implementation and technical requirements:

[0025] 1. The total width of the near-natural plant community on the river bank in Shanghai Nanhui is 18m, divided into horizontal structure and vertical structure.

[0026] 2. The horizontal structure is divided into three parts. The strip-shaped planting area with a total width of 18m is divided into three equal parts along the direction parallel to the bank to obtain three strip-shaped areas near the river, in the middle, and away from the river, with a width of 6m. The vertical structure is divided into upper, middle and lower floors.

[0027] 3. The upper layer is the arbor layer.

[0028] Among them, water and wet deciduous trees and water and wet evergreen trees are planted at intervals near the river. The planting length of deciduous trees is 8m, and the planting length of evergreen trees is 4m. DBH 12-14cm, canopy closure 55-65%. The deciduous tree...

Embodiment 2

[0037] This embodiment 2 is implemented under the following conditions of implementation and technical requirements:

[0038] 1. The total width of the near-natural plant community on the river bank in Qingpu, Shanghai is 15m, divided into horizontal structure and vertical structure.

[0039] 2. The horizontal structure is divided into three parts. Divide the strip-shaped planting area with a total width of 15m into three equal parts along the direction parallel to the bank, and obtain three strip-shaped areas near the river, in the middle, and far away from the river, each with a width of 5m. The vertical structure is divided into upper, middle and lower floors.

[0040] 3. The upper layer is the arbor layer.

[0041]Among them, water and wet deciduous trees and water and wet evergreen trees are planted at intervals near the river. The planting length of deciduous trees is 8m, and the planting length of evergreen trees is 4m. DBH 13-15cm, canopy closure 60-70%. The deciduo...

Embodiment 3

[0050] Present embodiment 3 is implemented under the following conditions of implementation and technical requirements:

[0051] 1. The total width of the near-natural plant community on the river bank in Minhang, Shanghai is 16.5m, divided into horizontal structure and vertical structure.

[0052] 2. The horizontal structure is divided into three parts. The strip-shaped planting area with a total width of 16.5m is divided into three equal parts along the direction parallel to the bank to obtain three strip-shaped areas near the river, in the middle, and away from the river, with a width of 5.5m. The vertical structure is divided into upper, middle and lower floors.

[0053] 3. The upper layer is the arbor layer.

[0054] Among them, water and wet deciduous trees and water and wet evergreen trees are planted at intervals near the river. The planting length of deciduous trees is 8m, and the planting length of evergreen trees is 4m. DBH 12-15cm, canopy closure 50-70%. The dec...

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Abstract

The invention discloses a method for constructing a near-nature plant community for preventing and controlling non-point source pollution, belonging to the technical field of plant planting. The plant community constructed by the method disclosed by the invention is located on the bank of a riverway, is belt-shaped and15-18m wide and comprises a horizontal structure and a vertical structure, wherein the horizontal structure consists of three belt-shaped areas, namely a near-riverway area, a middle area and a far-riverway area; and the vertical structure comprises upper, middle and lower layers which are formed by planting various humidity-tolerance mesic arbors, shrubs and herbaceous plants in a compounding and intercropping manner, the upper layer is an arborous layer, the middle layer is a shrub layer and the lower layer is a herbaceous layer. Through a reasonable plant space distribution and allocation method, direct runoff time can be increased effectively, the processes of pollutant infiltration, interception, absorption and the like can be promoted, and non-point source pollution can be prevented and controlled effectively; moreover, the constructed near-nature plant community can effectively create ecological benefit and has excellent function of landscape aesthetics.

Description

technical field [0001] The invention relates to a method in the technical field of plant planting, in particular to a method for constructing a near-natural plant community on a river bank for preventing and controlling non-point source pollution. Background technique [0002] With the growth of population and the acceleration of urbanization, the discharge of a large amount of industrial, agricultural and domestic sewage has led to the deterioration of water environments such as rivers and lakes. Water pollution is generally divided into two types: point source pollution and non-point source pollution; with the effective control of point source pollution, non-point source pollution has gradually become the most important source of surface water pollution such as rivers and lakes; the contribution rate of agricultural non-point source pollution highest and most widely distributed. Pollutants such as chemical fertilizers, pesticides, sediment, and nutrient salts in the farml...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G23/00
Inventor 靳思佳郭健康陈明玲车生泉
Owner SHANGHAI JIAO TONG UNIV
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