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Method of hydro-fluctuation belt ecological restoration in red soil regions and reservoir regions and application of method

A technology of ecological restoration and water-fluctuation zone, applied in the direction of soil preparation, application, agricultural machinery and implements, etc., can solve problems such as bank collapse, impact on water body and sediment, soil erosion, etc.

Inactive Publication Date: 2017-04-05
广东省水利电力勘测设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the original species cannot adapt to the new environment of alternating wet and dry conditions and cannot continue to survive, resulting in sparse and bare vegetation in the water-fluctuating zone, prone to soil erosion and bank collapse, affecting water landscapes and reservoir operations; on the other hand, some land pollution The waste directly enters the water area with the runoff, and some garbage and pollutants are scattered on the bank slope and floating water body in the hydrofluctuation zone, which affects the water landscape and brings eutrophication of the water body and sediment

Method used

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  • Method of hydro-fluctuation belt ecological restoration in red soil regions and reservoir regions and application of method
  • Method of hydro-fluctuation belt ecological restoration in red soil regions and reservoir regions and application of method
  • Method of hydro-fluctuation belt ecological restoration in red soil regions and reservoir regions and application of method

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Experimental program
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Effect test

Embodiment 1

[0060] Such as figure 1 and figure 2 As shown, it is a schematic diagram of mixed planting of Bahia grass and vetiver in the water-fluctuation zone of the red soil area reservoir area in this embodiment. Plant 3 rows of Bahia Grass 2 at intervals of about 1m. The row spacing between Bahia Grass 2 is about 20cm.

[0061] Ecological restoration methods for the hydrofluctuation zone in the reservoir area of ​​the red soil area:

[0062] In mid-June 2014, the bank slope of the reservoir was leveled off, and then planting grooves were excavated. The specifications of the planting grooves were about 15cm deep and 15cm wide. figure 1 and figure 2 Plant bahia grass and vetiver respectively, and then apply base fertilizer 10g / m 2 , cover the soil and compact it, and water and maintain it for 60 days to make the plant grow and develop normally.

[0063] According to observations, seedling replacement began to enter a stable growth period in August. In mid-September, the alternati...

Embodiment 2

[0067] Ecological restoration methods for the hydrofluctuation zone in the reservoir area of ​​the red soil area:

[0068] The vetiver and bahia grass are mixed in rows. The row spacing of vetiver is about 1m, and 3 rows of bahia grass are planted at intervals in the middle. The row spacing between bahia grass is about 20cm. Configure planting, and vetiver is configured as a contour line.

[0069] Level the slope on the bank of the reservoir, and then excavate the planting trough, the size of the planting trough is about 15cm deep and 15cm wide, and plant Bahia grass and vetiver respectively by division method, 6 Bahia grass per clump, and keep the seedlings The above-ground part is about 5cm, and the underground part is about 5cm; Vetiver 4 plants / cluster, the seedlings keep the above-ground part about 20cm, the underground part about 5cm, and then apply base fertilizer 10g / m 2 , cover soil compaction, watering and maintenance.

Embodiment 3

[0071] Ecological restoration methods for the hydrofluctuation zone in the reservoir area of ​​the red soil area:

[0072] The vetiver and bahia grass are mixed between rows, the row spacing of vetiver is about 1.15m, and 4 rows of bahia grass are planted between every two rows of vetiver, and the row spacing between bahia grass is about 15cm , Bahia Grass is planted according to the character shape configuration, and Vetiver is planted according to the contour line configuration. 8 plants / clump of bahia grass, about 7 cm aboveground part of seedlings; 6 plants / clump of vetiver, about 22 cm above ground part of seedlings.

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Abstract

The invention relates to a method of hydro-fluctuation belt ecological restoration in red soil regions and reservoir regions and application of the method to hydro-fluctuation belt ecological restoration in red soil regions and reservoir regions. Paspalum natatum and vetiver grass are planted at intervals in a mixed mode, one to two rows of vetiver grass are planted among two to four rows of paspalum natatum, the paspalum natatum is planted continuously in a triangular mode, and the row interval of the paspalum natatum is 10-30 cm. According to the ecosystem restoration method specific to hydro-fluctuation belts in red soil regions and reservoir regions, the ecosystem of the hydro-fluctuation belts in red soil regions and reservoir regions can be restored effectively, and mixed planting of the vetiver grass and the paspalum natatum in the hydro-fluctuation belts in red soil regions and reservoir regions can remarkably improve the leaf width, the survival rate, the coverage rate and the like compared with the mode that only the vetiver grass is planted, and further has the advantages on the aspects of the leaf with, the tiller number, the survival rate, the coverage rate and the like compared with the mode of mixed planting of the vetiver grass and other grass seeds, for example, mixed planting of the vetiver grass and wire grass.

Description

technical field [0001] The invention relates to an ecological restoration, in particular to a method for ecological restoration of a water-fluctuation zone in a red soil reservoir area, and the use of mixed species of bahia grass and vetiver in ecological restoration of a water-fluctuation zone in a red soil reservoir area. Background technique [0002] Fluctuation zone, also known as hydrofluctuation zone, is a phenomenon unique to rivers, lakes, and reservoirs. There are two main reasons for its formation: (1) It is the seasonal water level fluctuation, which mainly refers to the seasonal water level fluctuation. The area where submerged land is periodically exposed to the water surface. In addition, it also includes the sinking zone caused by special climate (such as the drought causing the water level of Dongting Lake to drop); (2) it is periodic water storage. In large reservoirs (such as the Three Gorges Dam ), the formation of the water-fluctuating zone is mainly due ...

Claims

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Application Information

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IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 李建生郑悦华
Owner 广东省水利电力勘测设计研究院有限公司
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