Open type simulation system for O3 concentration enrichment
A technology of ozone concentration and simulation system, applied in instruments, measuring devices, scientific instruments, etc., can solve problems such as complex construction technology, higher requirements for equipment reliability, and difficulty in objectively evaluating the climate feedback of forest ecosystems
Inactive Publication Date: 2018-08-03
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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However, these two platforms only considered the impact of one or two atmospheric components on the forest ecosystem, and the research results are difficult to objectively evaluate the current global climate change caused by multiple environmental factors such as CO 2 Effects of increased concentration, warming, drought, and intensified nitrogen deposition on forest ecosystems and their climate feedbacks
In China, there have been established O 3 -FACE platform, relative to crop O 3 -FACE platform, Forest O 3 -The FACE platform has a larger coverage area, and it has to extend vertically with the growth of trees, and its construction technology is more complicated; in addition, the O of crops 3 -The FACE platform only runs for one growing season (about 3 months) each time, while the forest O 3 -The FACE platform needs to run continuously for several years, which requires higher reliability of equipment
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[0018] The present invention will be described in detail below with reference to the drawings and embodiments.
[0019] Establish an open system to regulate O 3 O component concentration 3 -FACE platform requires no isolation facilities in the target area in the wild, gas can circulate freely, and conditions such as ventilation, light, temperature, and humidity in the target area are very close to the natural ecological environment. Because O 3 The gas is easy to decompose and cannot be stored, so O 3 -FACE platform adopts the method of instant sending-controlling gas mixing-transporting-free release; due to O 3 The concentration fluctuates greatly, no fixed increase O 3 Concentration value method, but to increase O 3 Concentration ratio method, the O in the target area in the experimental circle 3 The concentration value is set higher than the control circle (the control circle is the same size as the experimental circle, but there is no O 3 Fumigation treatment, which is equivale...
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The invention relates to an open type simulation system for O3 concentration enrichment. The system comprises an O3 generation and gas mixing subsystem, gas distribution subsystems and a detection andsampling control subsystem, wherein the O3 generation and gas mixing subsystem comprises an O3 generation unit, an air compression unit and gas mixing units, both the O3 generation unit and the air compression unit are connected with the gas mixing units; each gas distribution subsystem comprises a plurality of support columns arranged around the target area and gas distribution pipes arranged onthe support columns and parallel to the ground, the gas distribution pipes are connected with the gas mixing units, and the range covered with each gas distribution subsystem is an experimental circle; the detection and sampling control subsystem comprises a main control computer, a data acquisition controller connected with the main control computer, a wind speed and direction sensor and an O3 analyzer, and the data acquisition controller is connected with the O3 generation and gas mixing subsystem and the gas distribution subsystems. The simulation system can provide an ideal means for studying response of the ecosystem to the change of O3 concentration in the atmosphere.
Description
Technical field [0001] The invention belongs to the technical field of ecological environment research, and in particular relates to an open ozone concentration increase simulation system. Background technique [0002] The intensification of global industrialization and urbanization has changed the composition of the atmosphere, leading to global warming, which poses a threat to the human living environment and the sustainable development of society and economy, and has attracted widespread attention from scientists around the world and great attention from governments around the world. In order to evaluate, predict and respond to the consequences of changes in atmospheric composition, the scientific community has made long-term efforts. Before the 1980s, a lot of research was carried out in greenhouses, incubators or open-top air boxes, but due to the corresponding test conditions such as temperature, wind speed, humidity, rainfall and other factors, they were far from natural c...
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IPC IPC(8): G01N33/00
CPCG01N33/00
Inventor 冯兆忠刘钢徐彦森朱建国许稳
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI