Method for recovering submerged plants with hard substrates

A technology of submerged plants and recovery methods, applied in the field of water body ecological restoration, can solve the problems of non-natural environmental protection and degradability, and achieve the effects of high planting and survival efficiency, improved environmental protection, and rapid planting

Active Publication Date: 2020-09-15
WATER ENG ECOLOGICAL INST CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, this method generally uses polyethylene materials in order to ensure the strength of the filling bag during use, and the selection of materials does not meet the requirements of natural environmental protection and degradability

Method used

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  • Method for recovering submerged plants with hard substrates

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Embodiment 1

[0029] Puppet Lake is a typical hard-bottom lake. The southern part of the lake used to be a brick kiln. The bottom is hard and not suitable for the growth of submerged vegetation. This patented technology was used in the process of restoring the lake's submerged vegetation.

[0030] A recovery method for submerged plants with hard bottom, the steps are:

[0031] 1. On the basis of the survey of water depth distribution, select the water body within about 2m to determine the submerged plant restoration area, and set up permeable fish-proof enclosures in the target area to ensure that the aquatic plant restoration area will not be affected by fish feeding;

[0032] 2. The ratio of the light intensity below the water depth of 1.25m to the light intensity of the surface of the water body is less than 20%, and the water depth of the planting area is 2m. One of them or any combination of two to four kinds of Chinese cabbage or foxtail algae) artificially cultivated to a height of ...

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Abstract

The invention discloses a method for recovering submerged plants with hard substrates. The method comprises the following steps: A, selection of submerged plants: determining according to the ratio ofthe illumination intensity at 1/2 plant height of the submerged plants to the illumination intensity of the surface layer of the submerged plants; B, selection of planting materials, wherein ecological environment-friendly grass bags are adopted as turf external structures, and viscous bottom mud with low nutrient salt content fills in the turf external structures to serve as a planting substrate; C, turf manufacturing: when turf manufacturing is carried out, the viscous bottom mud is uniformly laid in a grass bag, the grass bag and the filling bottom mud are pushed aside the planting bag, and the root system of the submerged plant is buried in the grass bag; D, turf transplanting: hooking four corners of the grass bag with iron hooks, slowly putting the grass bag into a water body, and removing the iron hooks after the turf sinks to the bottom to finish transplanting; and E, recovery area management: strengthening management of the submerged plant recovery area. By means of the technical scheme, submerged plant planting can be carried out in an area where the water depth exceeds 2 m and underwater operation is difficult to carry out manually, and the planting problem of submergedplants under the hard substrate condition can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration of water bodies, and more specifically relates to a method for restoring submerged plants with hard substrates, which is suitable for ecological restoration of artificial and natural water bodies such as reservoirs, landscape lakes and natural lakes, and is also suitable for plants with submerged water For the substrate of plant planting conditions, it is more advantageous to plant submerged plants in water bodies with hard substrate, dredging-fill floating mud substrate or sandy substrate. Background technique [0002] As one of the important primary producers of aquatic ecosystems, submerged plants are not only the basis for the stability of aquatic ecosystems and the maintenance of aquatic biodiversity, but also provide shelter for other biological groups, reduce sediment resuspension, and interact with planktonic species. Plant competition for nutrients and release of algal subs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32A01G20/00A01G22/00A01G24/44A01G33/00
CPCC02F3/32A01G22/00A01G33/00A01G24/44A01G20/00Y02A40/80
Inventor 潘晓洁常锋毅胡明明郑志伟郑海涛胡莲陈小娟
Owner WATER ENG ECOLOGICAL INST CHINESE ACAD OF SCI
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