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Slope vegetation protection method for water body swelling and subsiding zone

A technology of ebb-swelling zone and vegetation, applied in the fields of botanical equipment and methods, excavation, horticulture, etc., can solve the problems of short ebb-swelling zone time, increase construction cost, rising water level during flood season, etc., and achieve wide adaptability and strong germination power. , the effect of low cost

Inactive Publication Date: 2007-08-15
GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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. This reservoir belongs to the granite area, and the bank slope has sandy and weathered crusts. Test the method of the present invention in the slope protection of vegetation in the water body's ups and downs zone. Bare root seedling planting grass, its technical steps are as follows:

[0020] (1) Propagation of Lishihe seedlings: Cut off the aboveground part of the growing Lishihe and apply a compound fertilizer with a ratio of 15:15:15 of nitrogen, phosphorus, and potassium to make it germinate rapidly and tiller a large number of crops. A new stem grows for one year and becomes a multiplied seedling;

[0021] (2) Prepare the bare-root seedlings of Lishihe basal stems suitable for bank slope construction: use annual robust Lishihe seedlings, cut off about 2 / 3 of the aboveground part one week before transplanting, leaving only 8-8% of the base. For 12cm base stems, after 5 t...

Embodiment 2

[0025] 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. The technical steps in the stages of propagating and propagating P. chinensis seedlings, preparing bare-rooted P. chinensis seedlings suitable for bank slope construction, and building P. chinensis cover with ups and downs are as in Example 1. 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 Patents(China)
IPC IPC(8): A01G1/00E02D17/20
Inventor 林建平
Owner GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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