From August 15th to 18th, 2025, in order to promote the exchange of domestic scholars in this field, keep up with the international forefront, strengthen the basic theoretical research of stable isotopes and their applications in various research fields, and celebrate the 10th anniversary of the establishment of the Stable Isotope Ecology Professional Committee of the Chinese Ecological Society. The 11th National Symposium on Stable Isotope Ecology and the 2025 Academic Annual Meeting of the Stable Isotope Ecology Professional Committee of the Chinese Ecological Society were grandly held in Kunming, Yunnan.

This conference is hosted by the Stable Isotope Ecology Professional Committee of the Chinese Ecological Society and Yunnan University.

The conference has set up eight special topics, including research on carbon cycle stable isotopes, nitrogen cycle stable isotopes, hydrogen and oxygen isotope processes of plant and soil organic molecules, traceability of agricultural and forestry products and their applications in other fields, and atmospheric stable isotope research.

The attending teachers are particularly interested in our company's on-site demonstration of the "Aerodyne Carbon Nitrogen Water Isotope Synchronous Observation System", which uses TILDAS technology and is not affected by other molecules, with a detection limit of up to PPT level; One instrument can simultaneously measure multiple isotopes, with a maximum measurement frequency of 10Hz; it has multiple measurement combinations, such as:

1 、 N 2 or 、 15 N 14 n 16 or 、 14 n 15 N 16 or 、 18 or ；

2、CH4、13CH4、CH3D、H2O；

3、CO2、18O-CO2、17O-CO2；

4、CO2 (13C 18O) 、H2O (H16OH、H18OH、H16OD) ；

5、CH4、δ13C(CH4)、N2O、δ15N 14N16O、δ14N 15N16O、δ18O(N2O) ；

6、CO2、δ13C(CO2)、δ18O(CO2)、H2O、δ18O(H2O)、δHDO；

7. N2O, CH4, H2O trace gas concentrations, CO2 (13C 18O) isotopes;

8. CO2 binary isotope gas monitoring instrument 13C 18O 17O;

9. Carbonate CO2 cluster isotopes 13C 18O 17O;

... can customize more combinations of gas molecules