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Slope vegetation protection method for water body swelling and subsiding zone

A technology of swell zone and vegetation, applied in the fields of botanical equipment and methods, excavation, horticulture, etc., can solve the problems of difficulty in finding suitable plants in the swell zone, short duration of the swell zone, increase construction cost, etc., so as to achieve water conservation. Excellent performance, low cost, strong germination effect

Inactive Publication Date: 2005-09-21
GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of vegetation slope protection is difficult to find suitable plants in the ups and downs zone; second, the rainfall and flood seasons are the same as the vegetation growth season, and the water level rises during the flood season, which makes the time suitable for vegetation creation in the ups and downs zone short, affecting the effectiveness of the construction and increasing the cost of construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Slope protection experiment of vegetation in the ups and downs zone of Xinfengjiang Reservoir. The reservoir belongs to the granite area, and the bank slope has sandy and weathered crusts. The method of the present invention is tested to protect the slope with vegetation in the water body ups and downs. At the stage of roots and seedlings, in the early spring of 2000 (February) on the bank slope of the reservoir's water body ups and downs, grass was planted with Lishihe basalt root seedlings. The lowest slope height of planting was 103.5 meters, and the highest water level in summer reached 114 meters. , to create a rise and fall zone Lishi Grass was covered by lawns after 3 months. Over the past five years, the lawn has been flooded for several months and has experienced drought, but it still grows well.

Embodiment 2

[0021] In February 2004, the slope protection method of vegetation in the water body's ups and downs zone was tested in Nanshui Reservoir, Guangdong Province, and the area of ​​grass in the ups and downs zone was 30,000 square meters. Nanshui Reservoir is located in the limestone area. The Lishihe vegetation experienced flooding in summer and low temperature in winter (below 0°C). In March 2005, the vegetation began to turn green again and grew well.

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PUM

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Abstract

A kind of vegetation slope-protection at the water disappearing-rising strap, relates to the harness methods of water's bank erosion. The invention adopts the flood- proofing, barren-proofing, drought-defying plants, which is fit to grow at the water disappearing-rising area, to be the slope-protection vegetation; builds the barrette grass vegetation at the water disappearing-rising strap by multiplying the barrette grass seedling, preparing the radical caudexes barefooted seeding of the barrette grass which is fit to grow at the water disappearing-rising strap, planting it in high density at the certain bank slope. It adopts the radical caudexes barefooted seeding for it is low in cost, strong in bourgeon ability, swift in growth and able to become vegetation rapidly. The invention has the characteristics of afforesting the water disappearing-rising strap, rust-preventing, protecting and purifying water.

Description

technical field [0001] The invention relates to a control method for bank slope erosion of a water body. Background technique [0002] The water body depletion zone refers to the shore zone between the low water level and the normal high water level of a water body (reservoir, river, lake or pond). Due to the alternation of water level rise and fall, the environment changes greatly in the sub-expansion zone, and it is difficult for ordinary plants to adapt to it, and they are often exposed. Under the action of water level fluctuation and wave erosion, the erosion of the sub-expansion zone is more typical. In many large and medium-sized reservoirs, bank collapse often occurs, and the erosion of the ups and downs causes silted water bodies and damages water conservancy facilities. If engineering measures are adopted for its governance, not only the cost is high, but also the original natural slope is destroyed, so the gain outweighs the gain. However, the use of vegetation s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00E02D17/20
Inventor 林建平
Owner GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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