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

Analytical method for steady-state transition mutation of lake ecosystem

An ecosystem and analysis method technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the lack of quantitative research on lake steady-state transition mutation points, etc., to achieve intuitive and clear mutation analysis diagrams and simple calculation methods Effect

Inactive Publication Date: 2016-02-24
江西省水利科学研究院
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the complex ecological environment system of the lake ecosystem, the evaluation standard method is often used to judge the steady state, and there is a lack of quantitative research on the sudden change point of the lake's steady state transition.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Analytical method for steady-state transition mutation of lake ecosystem
  • Analytical method for steady-state transition mutation of lake ecosystem
  • Analytical method for steady-state transition mutation of lake ecosystem

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The specific embodiment of the present invention is illustrated by an example of a lake a ecological system steady-state transition mutation analysis, so that those of ordinary skill in the art can understand the content of the invention more comprehensively, but the present invention is not limited in any way.

[0036] In the following example, the time sample size n is 23 (the year range is 1981-2008), and the key factors of steady-state transition are TN, TP, and Chla.

[0037] First, according to the method of change trend and tendency rate, time and concentration are used as the horizontal and vertical coordinates to draw the change trend graph of the lake steady-state transformation factor over time, taking the analysis of the change trend of TN over the years as an example (see figure 1 ). If the slope of the linear regression equation is greater than 0, it indicates that the conversion factor is generally on the rise, otherwise it is on the decline. figure 1 Th...

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 present invention relates to a method for discriminating steady-state transition of a lake ecosystem based on an Mann-Kendall method. According to the method provided by the present invention, concentration trend changes and mutation point analyses of ecosystem steady-state transition key factors (TN, TP anf Chla) in different periods are comprehensively considered, so as to finally determine lake ecosystem steady-state transition points and stage division. The method is simple and convenient, and the concentration change trends, mutation regions and mutation moments of the steady-state transition factors can be expressed clearly by means of a coordinate graph, so that the method is suitable for discriminating steady-state transition mutations of the lake ecosystem, and provides a reliable basis for lake ecosystem recovery treatment.

Description

technical field [0001] The invention belongs to the category of ecological environment governance and restoration, has certain applicability to the sudden change analysis of the steady state transition of the lake ecological system, and specifically relates to a quantitative analysis method for the sudden change point of the steady state transition of the lake ecological system. Background technique [0002] Steady-state transition theory (regimeshift) is widely used in various aquatic and terrestrial ecosystems to describe the essential, gradual and continuous transition process of the system state. For freshwater lake ecosystems, studying the change process and driving factors will help to understand the nature of current water environment problems and provide theoretical support for ecological restoration. Steady-state transformation analysis is a very effective way for people to explore the transformation of lakes from algae to grass. [0003] There are two relatively s...

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): G06F19/00
CPCG16Z99/00
Inventor 刘聚涛方少文冯倩胡芳温春云韩柳
Owner 江西省水利科学研究院
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