LICA domestic soil respiration, assisting carbon monitoring-application and practice of soil greenhouse gas flux measurement system
On February 18, 2025, the "2025 Ecosystem Observation New Technology, New Methods and Instruments Seminar" (hereinafter referred to as the seminar) was organized and held at the Institute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences, hosted by the Ecosystem Research Network (CERN) of the Chinese Academy of Sciences and the Institute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences, and co-organized by the CERN Secretariat, the Comprehensive Center, the Long-term Ecology Professional Committee of the Chinese Ecological Society, and Beijing Zhongke Hezhou Ecological Technology Co., Ltd. The seminar was hosted by Yu Xiubo, a researcher at the Institute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences. Researchers, monitoring personnel, graduate students, general managers and engineers of well-known domestic ecological monitoring instrument companies from CERN Ecological Stations (Centers), national and departmental field scientific observation and research stations, scientific research institutes, colleges and universities, nature reserves, etc. attended the seminar.
The seminar was broadcast live by Kouxiang Academic in a combination of online and offline methods. The average number of online real-time viewers was about 1,100, and the live broadcast reached 16,000 views.
LICA domestic soil respiration, assisting carbon monitoring-application and practice of soil greenhouse gas flux measurement system
Under the promotion of the "dual carbon" goal, soil greenhouse gas flux monitoring has become an important part of ecological research. In the past, high-precision instruments in the field of ecological monitoring mainly relied on imported equipment. With the continuous development of domestic instrument technology, domestic equipment has reached the level of international similar products in terms of accuracy, stability and intelligence in recent years, and has shown higher applicability and cost-effectiveness in some application scenarios, providing more choices for ecological research.
LICA United Technology Limited has been committed to the independent research and development and application promotion of domestic instruments, promoting the localization of high-precision greenhouse gas monitoring equipment, and helping China achieve its carbon neutrality goals. At this academic conference, Sun Baoyu, general manager of LICA United Technology Limited shared the "Application and Practice of Domestic Soil Greenhouse Gas Flux Monitoring System", and introduced in detail the innovative technologies and application cases of domestic equipment such as SF-3500 soil greenhouse gas flux monitoring system, PS-9600 portable soil greenhouse gas flux system, PS-9000 soil respiration system, and SF-9100 distributed soil respiration measurement system, demonstrating the strong strength of domestic instruments in the field of ecological monitoring.
Product Features
1. High-precision monitoring, suitable for a variety of ecosystems
The domestic soil greenhouse gas flux measurement system has been widely used in farmland, forest, wetland, grassland and other ecosystems. It can accurately measure greenhouse gas fluxes such as CO₂, CH₄, N2O, etc., and provide key data support for carbon cycle research.
2. Intelligent design to improve experimental efficiency
The system has automatic measurement and wireless data transmission functions, which can remotely monitor soil greenhouse gas flux changes, realize unattended operation, and greatly improve experimental efficiency.
3. Domestic technology breakthrough, reliable and stable data
Compared with traditional imported equipment, our products have excellent performance in data stability and long-term operation reliability, and at the same time have lower power consumption and higher cost performance, meeting domestic and foreign scientific research needs.
At the end of the meeting, all participants voted online to select the "10 most popular ecosystem monitoring instruments and equipment" and 5 "most popular instrument company reports".
The equipment of Lijia United won many awards!
Three of the products were selected as the top 10 most popular ecosystem monitoring instruments and equipment
✨ Ecosystem multi-channel synchronous flux monitoring and intelligent analysis system (model: SF-3500)
Automation of ground-gas flux observation is the only way for future development. The loop method currently used has defects such as asynchronous sampling, few coverage points, and insufficient sensitivity to low-emission observations, making it difficult to achieve long-term continuous observations in multiple regions at a wide scale. This system can achieve continuous observation of multi-region gas flux in situ in the field (the type of gas depends on the analytical instrument) by adopting multi-channel synchronous sampling and discrete measurement. It has intelligent data processing functions and can independently set sampling time, sampling channels, and cycle measurement sequence, etc. It can meet the needs of high-frequency daily change monitoring and long-term monitoring in multiple regions. It can support up to 100 plots, and all sampling processes are synchronized. It can also automatically rate the quality of flux data and display it online, providing stable, efficient, and low-cost observation equipment and technical support for long-term and continuous field data acquisition and large-scale networked observation research of carbon and nitrogen cycle processes.
Key technical indicators:
1. It can be used with gas chromatographs or various in-situ online gas analyzers to measure the concentrations of N2O, CH4 and CO2 in the atmosphere with high precision, rapidity and online, and can be used for long-term automatic monitoring in the field. The whole system can realize synchronous gas collection between multiple plots in the field, and automatically calculate and output the emission fluxes of N2O, CH4 and CO2 at the soil-crop community and atmospheric interface, and realize remote transmission and indoor display, so as to realize the visual integration of the whole project.
2. Number of channels: ≥12;
3. Start the machine to empty the gas collection device, and use the gas in the assimilation box for gas replenishment and flushing;
4. Programmatically control the synchronous opening and closing of the assimilation box and the synchronous gas extraction of the gas extraction device;
5. Data remote transmission and integrated system: based on the B/S architecture mode, the program and data are separated, the front and back are separated, and it has a strict user identity authentication mechanism;
6. Provide client App to realize remote data transmission and access.
✨ Networked monitoring system for vegetation productivity and structural function of ecosystems (model: iSIF-300TC)
The monitoring system includes a sunlight-induced chlorophyll fluorescence (SIF) monitoring module, an airborne hyperspectral monitoring module, and a multifunctional hyperspectral vegetation index monitoring module, which can realize the observation of chlorophyll fluorescence and vegetation structural parameters. It uses multi-source remote sensing technology, air-based and tower-based means, and uses hyperspectral continuous output spectra with high resolution. In addition to being able to output NDVI, it can also input more than a dozen other vegetation indices such as EVI. Through online in-situ long-term monitoring of SIF signals and vegetation indices, it can be used to accurately estimate ecosystem productivity (i.e. GPP and NPP) and monitor phenology and vegetation stress.
Key technical indicators:
1. Spectral range of sunlight-induced chlorophyll fluorescence (SIF) monitoring module: 730-780nm
2. Sampling interval: 0.08nm
3. Spectral resolution: 0.17nm
4. Spectral calibration: Use Hg, Ne, Ar and other standard light sources traceable to NIST to calibrate the wavelength of the spectrum.
5. Calibration system: Using dual-fiber fast switching mode, it can simultaneously collect sunlight illumination information and ground object radiation brightness information to obtain the most accurate spectral reflectance.
6. Spectral range of airborne hyperspectral monitoring module: 400-1000nm;
7. Number of spectral channels: ≥300;
8. Number of spatial channels: ≥1300
9. Resolution: ≤4nm;
10. Signal-to-noise ratio: ≥1200:1
✨ Ecosystem hyperspectral-lidar integrated remote sensing monitoring system (model: N-LR1601)
Using drones equipped with hyperspectral cameras and lidars, hyperspectral and underlying surface three-dimensional information can be obtained simultaneously. The measured hyperspectral image cube data can invert the surface reflectivity; the water absorption wavelength can be used to monitor soil moisture; large-scale remote sensing quantitative inversion, including vegetation index, leaf area index, chlorophyll and total nitrogen and other physiological and biochemical parameters; different types of crops, tree species, and buildings on the ground are refined and classified and interpreted, and target information is effectively identified and extracted. The lidar point cloud data acquisition system can solve the precise location information of the target, thereby presenting the precise three-dimensional structure information of the target.
Key technical indicators:
· Spectral range: 400-1000 nm
· Spectral resolution: ≤3.5nm
· Spectral channels: ≥300
· Spatial channels: ≥900
· Maximum frames per second: ≥240
· LiDAR scanning frequency: ≥320,000 points/second
· Scanning field of view: ≥359°×29°
· Weight ≤2.5kg
Selected in the most popular instrument company report
LICA United Technology Limited "Application and Practice of Domestic Soil Greenhouse Gas Flux Measurement System"
At present, the LICA soil respiration measurement system has been put into use in many scientific research projects, supporting the publication of many research results and helping carbon neutrality research. As one of the earliest domestic companies to carry out domestic research and development of soil greenhouse gas monitoring equipment, LICA has been deeply involved in the industry for 20 years. It has always adhered to the scientific research needs as the guide, and through continuous technological innovation and application practice, it has gradually broken the technical barriers of imported equipment. In the future, LICA will continue to explore the field of ecological monitoring, and work with a large number of scientific research users to help scientific research with more accurate data and more reliable equipment. We believe that the implementation of each domestic instrument is a microcosm of the rise of domestic scientific and technological power; the accumulation of each set of experimental data is an important step towards the goal of carbon neutrality.