Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for improving ecological service functions of urban lakes

A technology for lakes and cities, applied in horticultural methods, chemical instruments and methods, botanical equipment and methods, etc., which can solve problems such as aesthetic defects

Active Publication Date: 2018-11-13
NANJING INST OF GEOGRAPHY & LIMNOLOGY
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the fly in the ointment is that some species of submerged water plants such as black algae, sunflower, foxtail algae, and bitter grass often grow and float on the surface of the water body, leaving serious aesthetic defects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Wuhan urban landscape lake, with a water body area of ​​45,000 square meters. Ecological restoration began in March 2015. The main ecological restoration measures are planting submerged plants and removing benthic fish. The ecological restoration effect appeared in July 2015, and submerged plants were covered. The temperature reached 70%, the water body was clear, and the waterscape effect was good, but in mid-September, foxtail algae and black algae grew out of the water surface in some shallow water areas (water depth 1-2 meters), seriously affecting the water body landscape.

[0019] At the beginning of March 2018, in the area where the submerged plants grew out of the water surface, a 200 square meter water area was surrounded by rubber enclosures, and the technical verification of the application of the present invention was carried out. The experiment set up 5 groups of treatments, one group was blank control, one group was added with uniconazole alone, one group w...

Embodiment 2

[0023] An urban landscape lake in Changsha with a water area of ​​50,000 square meters. Ecological restoration began in August 2016. The ecological restoration effect appeared in October. The coverage of submerged plants reached 60%. The water body is clear and the waterscape effect is good, but some shallow water areas ( Water depth of 1 meter) bitter grass etc. grow out of the water surface, seriously affecting the service function of the water ecosystem.

[0024] In 2017, in the area where bitter grass grew out of the water surface, a water area of ​​200 square meters was surrounded by fences, and the technical verification of the application of the present invention was carried out. Four groups of treatments were set up in the experiment, and the following schemes were adopted respectively:

[0025] (1) Blank control group: no measures were taken;

[0026] (2) The first implementation group: Sprinkle polyacrylamide into the water body in mid-February so that its concentra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for improving service functions of urban lake ecosystem landscapes. The method comprises the following steps of (1) spraying polyacrylamide into a target water body, sothat the concentration in the water body can reach 5 to 20mg / L; after two months, spraying entozole into the target water body for two to three times, wherein the dosage is 0.1 to 0.5g / m<2> each time; after one month, spraying sodium naphthyl acetate into the target water body for two to three times, wherein the dosage is 0.5 to 1g / m<2> each time. The method has the characteristics that accordingto the problem of submerged plant landscape in the urban lake water body, the height of the lake submerged plant is inhibited, and the root is strengthened, so as to reach the purposes of optimizingof submerged plant landscapes in the urban lake water body and stabilizing of colonies; the safety effect is realized, the cost is low, and the like.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a method for improving the ecological service function of urban lakes. Background technique [0002] The restoration of submerged vegetation is the core link of ecosystem restoration, and it is also the key to realize the transition from turbid water to clear water. The ecological mechanism of submerged vegetation mainly includes: (1) Competing with algae for available nutrients, reducing algae biological (2) increase the sedimentation of particles and inhibit sediment resuspension; (3) provide a place for growth and reproduction of zooplankton and create conditions for them to avoid fish predation; (4) release oxygen to sediments through roots to improve sedimentation redox potential, inhibiting the release of phosphorus from sediments, and so on. The practice of ecosystem restoration shows that the clear water system can only be stabilized after the submerged ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C02F3/32A01G7/06A01G20/00
CPCA01G7/06A01G20/00C02F1/56C02F3/32
Inventor 李宽意闵屾吴庆龙苏雅玲
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com