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Plant biological adaptability recovery method of water-body compact bottom sediment

A restoration method and compactness technology, applied in the fields of botanical equipment and methods, plant cultivation, land preparation methods, etc., can solve the problems of high compactness and small porosity of the water surface sediment, and achieve the Effects of Aquatic Plant Restoration

Inactive Publication Date: 2011-05-04
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for restoring plant fitness of compact water body sediment. Aiming at the problem of low porosity and high compactness of water surface sediment, the surface sediment is physically improved to meet the needs of large aquatic plants. Physical properties and environmental requirements suitable for growth, such as growth and reproduction

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  • Plant biological adaptability recovery method of water-body compact bottom sediment
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  • Plant biological adaptability recovery method of water-body compact bottom sediment

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Embodiment Construction

[0024] Adopt the method of the present invention to carry out plant fitness restoration to dense bottom mud, specific method is as follows: figure 1shown, including the following steps:

[0025] 1. Determination of aquatic plant restoration species and areas

[0026] On-site investigation of the species of indigenous aquatic plants in the bottom mud of the area to be restored and its surrounding waters, and the historical growth status of aquatic plants in this water area were collected. Leaf plants 1.0-1.8 m, submerged plants 1.2-2.5 m), according to the perennial water depth distribution of the area to be restored, the area to be restored is divided into emergent plant restoration area 1, floating leaf plant restoration area 2 and submerged plant restoration area 3 ,Such as figure 2 shown.

[0027] 2. Analysis of sediment compactness

[0028] For the water area to be ecologically restored where plants are planned to be planted, the sediment compactness parameter (poros...

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Abstract

The invention relates to a plant biological adaptability recovery method of water-body compact bottom sediment, which comprises the following steps: after selecting the water plant species, respectively determining the recovery regions for emerged plants, floating-leaved plants and submerged plants according to the water depth distribution throughout the year; acquiring and analyzing the porosity of the surface sediment of each plant recovery region, and determining the bottom sediment biological adaptability remediation region; determining the compact bottom sediment remediation depth according to the water plant species, and selecting a carving component to geometrically carve the water-body bottom sediment, thereby destroying the appearance morphology and the bedding structure; and finally, growing the water plants on the bottom sediment of the plant biological adaptability recovery region. In the compact bottom sediment water area, the water-body bottom sediment is manually carved according to the natural conditions and the characteristics of the water plants to increase the porosity, thereby improving the surface bottom sediment, promoting the apposition growth and fixation, and further realizing the water plant recovery of the water body.

Description

technical field [0001] The invention relates to a method for restoring the fitness of a plant growth substrate, in particular to a method for restoring the fitness of a plant for dense bottom mud of a water body. Background technique [0002] Water body ecological restoration mostly revolves around the growth and reproduction of aquatic organisms in the water body to be restored. Among them, the most important indicators to judge the success of the restoration project are the survival rate of aquatic organisms after restoration and the stability and diversity of the community. There are many factors that affect the growth of large vascular plants in water bodies, such as water quality, sediment, hydrodynamic force, light, algae competition, etc. Among them, sediment is the main solid phase medium for fixing aquatic plants and providing nutrition for their root zone. In some waters such as lakes, reservoirs and rivers, due to natural or human activities, the physical properti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G33/00A01G1/00A01B79/00
Inventor 范成新
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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