Technology for monitoring carbon flux in grass-type lakes

A carbon flux and lake technology, applied in the field of environmental ecology, can solve problems such as sample leakage, data accuracy reduction, long time interval between sample collection and detection, and achieve the effect of reducing manpower and material resources

Inactive Publication Date: 2011-08-17
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the static box/gas chromatograph method is widely used at home and abroad. The biggest disadvantage of this method is that the time interval between sample collection

Method used

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  • Technology for monitoring carbon flux in grass-type lakes
  • Technology for monitoring carbon flux in grass-type lakes
  • Technology for monitoring carbon flux in grass-type lakes

Examples

Experimental program
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Effect test

Embodiment approach

[0013] Carry out field research to investigate the degree of water pollution and swampiness in the area, and apply this technology in swampy and non-swampy waters.

[0014] Put 6 static boxes in swampy and non-swampy waters respectively, put 3 in various waters, and each static box partition should be close to the water surface. Start monitoring at the same time at 9 o'clock in the morning, set the number of monitoring times to 144, take a sample every half an hour, each sampling time is 2 minutes, maintain the instrument every 24 hours, and monitor once a week, the detection cycle is one year . On the one hand, since the carbon flux is closely related to temperature, the monitoring density should not be too small. On the other hand, the monitoring data of three days per week is sufficient to represent the temperature change in this region. Input the obtained data into the computer, and then calculate the average value of the data obtained in each period of three parallel sa...

Embodiment 1

[0016] Aiming at a certain water area of ​​Baiyangdian Lake, the present invention is used as the carbon flux monitoring technology to continuously monitor the carbon flux of the lake area. The waters are divided into swampy area and non-swampy area. Each area is divided into three parallel samples, and a total of six groups of static boxes are observed. Use this technique when the water surface is not frozen from March to November. Finally, through definite integral calculation, it is found that the water area releases 8.86t of carbon to the atmosphere every year.

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Abstract

The invention aims at solving the problems of discontinuity and accuracy of carbon cycle monitoring data in grass-type lakes, and provides a technology and a method for improving the data acquisition. Li8100 is an advanced instrument for measuring data at test site and recording the data, but Li8100 can not be used for monitoring carbon flux of lakes by the restraints of conditions; in the invention, Li8100 can be used for monitoring the carbon flux in lakes by an improved static box; compared with the method of using the traditional static box/meteorological chromatography, the method provided by the invention greatly improves the continuity and accuracy of data, and is convenient for the data analysis in later stage. The technology provided by the invention uses the existing resources of China and obtains materials from local sources, so that the technology is simple and feasible, and has relatively strong operability and wide applicability; the implementation of the technology does not influence the original ecological functions of the lake ecosystem; and great significances for maintaining the ecology health of grass-type lakes in a long time are provided.

Description

technical field [0001] The invention belongs to the field of environmental ecology, and in particular relates to a technology and method for monitoring carbon flux by using an improved static box, which can effectively improve the continuity and accuracy of lake carbon flux monitoring data. Background technique [0002] As a part of the water ecosystem—although the area of ​​the lake ecosystem is much smaller than that of the ocean, because it is located inland, it has a strong exchange of materials, energy, and information with the terrestrial ecosystem, and the productivity of the lake ecosystem is very high, so it has no impact on climate fluctuations. It is particularly sensitive and has a high sedimentation rate. It can truly record the information of various climate and other environmental changes in the lake area in a long geological history period. It is a good recorder of environmental changes. Therefore, lakes have always been an important object of global change re...

Claims

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Application Information

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IPC IPC(8): G01N21/35G01N33/18
Inventor 董伟舒俭民何萍蓝艳苏德
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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