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Evaluation method of degree of swampiness based on annual sediment deposition

An evaluation method and degree of technology, applied in the field of environmental ecology, can solve problems such as damage to the ecological environment and social benefits, stay, and quantitative research, and achieve the effect of accurate development rules and avoidance of human errors.

Inactive Publication Date: 2011-01-26
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

However, since the 1980s, with the rapid development of social economy, people have not been able to make rational use and scientific management of lake wetland resources, causing a series of environmental problems: the wetland area shrinks, the quality and function gradually decline, The trend of swamping is becoming more and more obvious, and the ecological environment and social benefits are seriously damaged
[0003] The researches on lake swampification are mostly at the stage of qualitative analysis of swampification, and relatively few quantitative studies have been carried out.

Method used

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  • Evaluation method of degree of swampiness based on annual sediment deposition
  • Evaluation method of degree of swampiness based on annual sediment deposition
  • Evaluation method of degree of swampiness based on annual sediment deposition

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Embodiment Construction

[0009] Take the quantitative evaluation of Baiyangdian swamp as an example:

[0010] 1. "Water level - annual sedimentation method" to estimate the life of Baiyangdian wetland

[0011] Collect the water level data of Baiyangdian Lake since the 1950s, combined with the comparison table of different water levels, water volume and water surface area of ​​Baiyangdian Lake (see Table 1, figure 1 ), and the average sediment input for many years after the completion of the reservoir on Baiyangdian Lake, calculate the time it takes for the wetland to completely become a swamp area, that is, the life span T (year) of Baiyangdian wetland.

[0012] Table 1 Comparison table of water level, water quantity and water surface area of ​​Baiyangdian Lake in different periods

[0013]

[0014] Take the highest monthly water level in the past 30 years (1980-2010) as H max (unit: m), since the present invention thinks that the water depth of the lake area belongs to the swamp zone when the wa...

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Abstract

The invention belongs to the field of environmental ecology, which aims to perform quantitative evaluation on degree of swampiness of target lakes and provides an evaluation method of degree of swampiness based on annual sediment deposition. Taking water level and depth of lakes as main objects of study and a quantitative principle of degree of swampiness of lakes, synthetic judgment is processed by the method according to leading indicators such as annual water level which is of different degrees in years, maximum water level, water level-volume relationship, depth of water, average sediment input amount of lakes in years and deposition. The method can reflect the historical change regulation of lakes precisely and is significant for evaluation and prediction of degree of swampiness of lakes.

Description

technical field [0001] The invention relates to the field of environmental ecology, in particular to a swamp degree evaluation method based on annual siltation. Background technique [0002] Lakes and wetlands are the most important ecosystems in the life of the earth, and they are also the precious natural and cultural heritage of mankind. In the evolution of human civilization for thousands of years, lakes and wetlands have maintained the harmonious development of man and nature with their unique functions. However, since the 1980s, with the rapid development of social economy, people have not been able to make rational use and scientific management of lake wetland resources, causing a series of environmental problems: the wetland area shrinks, the quality and function gradually decline, The trend of swamping is becoming more and more obvious, and the ecological environment and social benefits are seriously damaged. Acceleration of the lake swamp process seriously reduces...

Claims

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Application Information

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IPC IPC(8): G06Q10/00
Inventor 崔保山蓝艳安鸿雪李夏韩祯张永涛
Owner BEIJING NORMAL UNIVERSITY
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