阅读说明：本技术 一种湖泊生态系统评估方法 (Lake ecosystem assessment method ) 是由 杨品红 罗丛强 谢晓 胡丽丽 于 2019-11-12 设计创作，主要内容包括：本发明公开了一种湖泊生态系统评估方法,属于水域生态系统保护领域,一种湖泊生态系统评估方法,包括以下步骤：S1,准备以下评估工具：水质取样器、盛样桶、盛水盆、水质检测仪、滤网、防水笔、标签纸、计时器、标记旗杆、皮尺、记录本、记录笔；S2,评估人员在待评估湖泊区域通过皮尺每隔100-400m进行选点,并通过标记旗杆进行定点工作,它可以实现对湖泊的水质进行检测,通过数据对比,分析得到该湖泊水域的水质是否符合生态标准,也可通过不同时段的水质变化得到该区域水质的自恢复能力,并且能够根据数据对比得到不同区域的水质优劣,进而能够便于集中治理水域。(The invention discloses a lake ecosystem evaluation method, which belongs to the field of water area ecosystem protection and comprises the following steps: s1, preparing the following evaluation tools: a water quality sampler, a sample containing barrel, a water containing basin, a water quality detector, a filter screen, a waterproof pen, label paper, a timer, a marking flagpole, a tape, a record book and a recording pen; s2, the assessment personnel select points in the lake area to be assessed every 100-400m by a tape and perform fixed-point work by marking a flag pole, the water quality of the lake can be detected, whether the water quality of the lake water area meets the ecological standard or not can be obtained by data comparison and analysis, the self-recovery capability of the water quality of the area can also be obtained by the water quality change in different periods, and the quality of the water in different areas can be obtained according to the data comparison, so that the water area can be conveniently and intensively treated.)

1. A lake ecosystem assessment method is characterized by comprising the following steps:

s1, preparing the following evaluation tools: a water quality sampler, a sample containing barrel, a water containing basin, a water quality detector, a filter screen, a waterproof pen, label paper, a timer, a marking flagpole, a tape, a record book and a recording pen;

s2, the assessment personnel select points in the lake area to be assessed at intervals of 100-;

s3, the evaluator extracts water quality samples at every 2-4h interval at each marking point through the water quality sampler, after the water quality samples are extracted, the filter screen is placed at the water inlet of the water containing basin to filter the sand, stone and algae on the surface of the extracted water quality samples for 3-5 times, after the water quality samples are filtered, the water quality samples are poured into the sample containing barrel, the label paper is attached to the surface of the sample containing barrel, and a waterproof pen is used for marking;

s4, sequentially carrying out water quality detection work on the extracted water quality samples through a water quality detector, and sequentially recording COD (chemical oxygen demand), ammonia nitrogen, total phosphorus, turbidity and inorganic salt data in display data detected by the water quality detector on a record book through a recording pen;

s5, comparing the recorded data, firstly, comparing the recorded data of the water quality samples at the same sampling point and different time periods, carrying out comparison analysis according to the sequence of the sampling time, obtaining whether the water quality of the water source at the sampling point meets the ecological standard of the lake or not by comparing the water quality data information at the same place and different time periods, and obtaining whether the water source at the sampling point has better self-recovery capability or not by comparing the change of elements in the data according to the sequence of the sampling time; then, comparing the recorded data of the water quality samples at different sampling points and in the same time period in sequence, and further obtaining the water quality difference of different water areas of the lake and the difference of the self-recovery capability of the water quality of different water areas of the lake;

and S6, recording the comparison data information to obtain an evaluation result.

2. The lake ecosystem assessment method according to claim 1, characterized in that: in S2, the outer surface of the flag pole is coated with phosphor.

3. The lake ecosystem assessment method according to claim 1, characterized in that: in S3, after the water quality sample is poured into the sample holding barrel, it needs to be sealed by a sealing cover.

4. The lake ecosystem assessment method according to claim 1, characterized in that: in the S3, the diameter of the mesh distance of the filter screen is 3-6 mm.

Technical Field

The invention relates to the field of water area ecosystem protection, in particular to a lake ecosystem evaluation method.

Background

In recent years, along with the continuous improvement of environmental awareness, the attention degree of the environmental pollution problem is continuously improved, and as is well known, the environmental pollution not only seriously affects the daily life of people, but also seriously harms the lake ecosystem. The lake ecosystem is a product of interaction and continuous evolution between a watershed and a water body biological community and various organic and inorganic substances, and compared with a river ecosystem, the lake ecosystem has poor fluidity and relatively low oxygen content and is more easily polluted. The lake ecosystem consists of land and water interlaced zones and biological communities in open water areas, and has various functions, such as regulation of storage, improvement of water quality, habitat of animals, local climate regulation, drinking water and food supply for human beings and the like.

In order to carry out more effective protection and treatment on the lake ecosystem, it is necessary to carry out periodic evaluation on the lake ecosystem, and therefore a lake ecosystem evaluation method is designed to solve the problems.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a lake ecosystem assessment method, which can realize the detection of the water quality of a lake, analyze and obtain whether the water quality of a lake water area meets the ecological standard or not through data comparison, obtain the self-recovery capability of the water quality of the area through the water quality change in different periods, obtain the quality of the water in different areas according to the data comparison and further facilitate the centralized management of the water area.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A lake ecosystem evaluation method comprises the following steps:

s1, preparing the following evaluation tools: a water quality sampler, a sample containing barrel, a water containing basin, a water quality detector, a filter screen, a waterproof pen, label paper, a timer, a marking flagpole, a tape, a record book and a recording pen;

s2, the assessment personnel select points in the lake area to be assessed at intervals of 100-;

s3, the evaluator extracts water quality samples at every 2-4h interval at each marking point through the water quality sampler, after the water quality samples are extracted, the filter screen is placed at the water inlet of the water containing basin to filter the sand, stone and algae on the surface of the extracted water quality samples for 3-5 times, after the water quality samples are filtered, the water quality samples are poured into the sample containing barrel, the label paper is attached to the surface of the sample containing barrel, and a waterproof pen is used for marking;

s4, sequentially carrying out water quality detection work on the extracted water quality samples through a water quality detector, and sequentially recording COD (chemical oxygen demand), ammonia nitrogen, total phosphorus, turbidity and inorganic salt data in display data detected by the water quality detector on a record book through a recording pen;

s5, comparing the recorded data, firstly, comparing the recorded data of the water quality samples at the same sampling point and different time periods, carrying out comparison analysis according to the sequence of the sampling time, obtaining whether the water quality of the water source at the sampling point meets the ecological standard of the lake or not by comparing the water quality data information at the same place and different time periods, and obtaining whether the water source at the sampling point has better self-recovery capability or not by comparing the change of elements in the data according to the sequence of the sampling time; then, comparing the recorded data of the water quality samples at different sampling points and in the same time period in sequence, and further obtaining the water quality difference of different water areas of the lake and the difference of the self-recovery capability of the water quality of different water areas of the lake;

and S6, recording the comparison data information to obtain an evaluation result.

Through the operation, the water quality of the lake can be detected, whether the water quality of the lake water area meets the ecological standard or not is obtained through data comparison and analysis, the self-recovery capacity of the water quality of the area can also be obtained through the water quality change in different time periods, the quality of the water in different areas can be obtained according to the data comparison, and then the water area can be conveniently and intensively treated.

Furthermore, in S2, the outer surface of the marking flagpole is coated with fluorescent powder, and the coated fluorescent powder can facilitate evaluators to better find a sampling place at night, thereby improving the sampling efficiency.

Furthermore, in S3, after the water quality sample is poured into the sample containing barrel, the water quality sample needs to be sealed by the sealing cover, the sample containing barrel is sealed and stored by the sealing cover, and the water quality sample after being filtered cannot be easily polluted by external factors to influence the detection structure of the water quality sample.

Furthermore, in S3, the diameter of the distance between the filter screens is 3-6mm, so that sand and algae in the water quality sample can be filtered.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) according to the scheme, the water quality of the lake can be detected, whether the water quality of the lake water area meets the ecological standard or not is obtained through data comparison and analysis, the self-recovery capacity of the water quality of the area can also be obtained through the water quality change in different time periods, the water quality of different areas can be obtained according to the data comparison, and then the water area can be conveniently treated in a centralized mode.

(2) The coated fluorescent powder can facilitate evaluators to better find a sampling place at night, and the sampling efficiency is improved.

(3) The sealing cover is used for sealing and storing the sample containing barrel, so that the water quality sample after being filtered can not be easily polluted by external factors to influence the detection structure.

(4) The diameter of the distance between the filter screens is 3-6mm, and the sand and the algae in the water quality sample can be filtered.

Detailed Description

The technical scheme in the embodiment of the invention is clearly and completely described below; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be further illustrated with reference to the following specific examples.