The World Meteorological Organization website said on the 26th that in July this year, extreme weather such as high temperature, drought and catastrophic precipitation occurred frequently in the world, which has a wide impact on human health, agriculture and ecosystems.
The picture below shows the temperature and CO 2 trend forecasts given by IPCC Chairman Hoesung Lee in the 2018 "Climate change and the sustainable development agenda" report.
In July 2018, Science published a joint review article, "A More Reliable Future Global Warming Prediction: Climate Models Predict the Future of Greenhouse Gas Warming" (Reducing uncertainties in climate models. Science 27 July 2018: Vol 361, Issue 6400) The author is Professor Brian Soden of the School of Ocean and Atmospheric Sciences at the University of Miami in Los Angeles. The three authors are well-known scientists in the field of climate change research.
They reviewed the current global climate model that is widely used to predict future climate change in estimating the warming effect of greenhouse gases, and concluded that the global climate model developed by various research institutions around the world is estimating the increase in greenhouse gases. There are huge differences in radiation effects.
The review article points out two key points for future performance enhancements. First, it is necessary to improve the position of the CO 2 radiation effect process in the mode and become a routine calculation step. Second, due to the advancement of computing resources, it is necessary to gradually reduce the empirical approximation of "physical process parameterization", and reduce its "parameterization" processing.
These models and data calculations rely on a large amount of basic data support, and Beijing Yiketai Eco Technology Co., Ltd. provides a full range of surface greenhouse gas solutions.
Field in situ measurement products:
1 SoilBox343
Ultra-portable, dual-channel, diffused measurement (effectively avoiding errors caused by air pressure changes caused by air pump sampling).
The most cost-effective, flexible configuration, simultaneous measurement of air temperature and humidity (recommended optional), optional portable soil moisture sensor (measuring soil moisture and temperature, recommended), transparent breathing chamber can measure photosynthesis (recommended with PAR and Temperature and humidity monitoring module). The latest references: Wu Ruijuan, Wang Yingchun, et al. Effects of long-term fertilization on soil respiration in spring maize farmland in the northeastern China, Journal of Plant Nutrition and Fertilizer 2018, 24(1): 44-52.
2 SoilBox FMS/FGA
Portable, high-precision O 2 flux can be measured at the same time. In addition to measuring soil respiration in situ, it can also measure soil samples, roots, soil animals and other respirations (with special breathing chamber). Multi-channel sampling can connect soil moisture and temperature. And other sensors.
3 SRS1000/2000 soil respiration measurement system is portable, and a variety of breathing chambers are available for selection. It can measure photosynthesis and soil respiration of small communities. The effects of greenhouse effect on soil respiration can be measured experimentally by controlling factors such as CO 2 in the breathing chamber.
4 ACE/ACE-Net automatic soil respiration monitoring ACE single highly integrated, fully automated, integrated soil respiration monitoring system, available in closed and open options, as well as transparent breathing chamber and non-transparent breathing chamber; Six soil temperature sensors and four soil moisture sensors were connected to monitor moisture and temperature changes in different soil profiles.
The network can be extended to 30 ACE single machines, and the monitoring diameter can reach 200 meters. It can be used for the spatial heterogeneity spatial and temporal distribution pattern of soil respiration.
5 SCG-N soil profile CO 2 /O 2 gradient monitoring system is a patented product of Yi Ketai, which can measure soil profile CO 2 , O 2 , soil moisture, soil temperature, etc. in situ, and can form various experimental monitoring schemes:
1) Control experiment monitoring system with SoilTron multi-function small lysimeter
2) An underground ecological observation system can be formed with the BTC100 root monitoring system
3) It can be combined with PTM48A and BTC100 to form an underground and underground comprehensive observation system.
4) It can form a comprehensive soil respiration observation system with OTC-Auto to comprehensively monitor soil flux, soil profile in situ CO 2 and O 2 , etc.
5) Can be used for wetland in situ monitoring (SCG-ES)
6 OTC-Auto community photosynthetic-respiratory in situ monitoring system enables in-situ continuous monitoring of CO 2 /H 2 O flux and photosynthetic-breathing in individuals, communities and even ecosystems.
It can be configured with a single-compartment photosynthetic-respiratory monitoring box, a dual-body photosynthetic-respiratory monitoring box (for comparative experiments, etc.), or a multi-channel monitoring system.
Laboratory soil respiration measurements:
1 SoilLab laboratory multi-channel soil respiration measurement system SoilLab multi-channel laboratory soil respiration measurement system for laboratory measurement of soil respiration, soil animal respiration, root respiration, etc., especially suitable for all types of soil including wetland soil, industrial contaminated soil, solid Abolished Microcosm-test (microecological experiment simulation observation).
Modular configuration, flexible configuration and expansion according to experimental requirements, such as configuration of 4-channel, 8-channel, 16-channel or even 24-channel measurement system.
High-precision oxygen analyzer and CO 2 analyzer, optional methane analyzer, water vapor analyzer, etc. Optional differential oxygen analyzer for analysis of fine soil animal Folsomia candida, line (èš“ (Enchytraeus sp.) Breathing of a rat, or a fine root.
2 EGA-60 laboratory automatic soil respiration observation system can simultaneously measure 24 channels of CO 2 /H 2 O, and display the analysis results online. The measurement parameters include air pressure, gas flow rate, real-time CO 2 concentration, H 2 O concentration, temperature, etc. .

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