Biosphere-Climate Interactions

Principal Investigator

Prof. Alon Angert

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Climate Change affects the terrestrial biosphere, while changes in the biosphere feedback and affect the climate system. Understanding these complex interactions is important at these times of Global Change.
Related research in our lab tracks carbon sequestration in soils and wetlands. We measure soil carbon and not only the CO2 emitted during organic carbon decomposition but also make high-accuracy measurements of O2 influx. The comparison between these two gases enables better understanding of soil processes.

Previous research projects focus on developing the use of oxygen stable isotopes of phosphate for tracking phosphorus in dust and its biogeochemical cycling in soil. This research is based on field work, remote-sensing and lab work. These approaches could help evaluate the effects of changing climate on the terrestrial phosphorus cycle, which is an important limiting factor for plant growth.

In the last series of projects, we have developed, in collaboration with Prof. Amrani from my institute, an approach to measuring the sulfur isotopes of carbonyl sulfide (COS) and used this to determine its isotopic composition in the atmosphere, plant uptake, and seawater. This is done by sampling in the ocean and forests, and by lab experiments. Our continued research in this field will help to better constrain global-scale photosynthesis and the influence of this gas on Earth's albedo and, hence, climate.

 

 

Research students

Guy Sapir (Master) in collaboration with Yoav Rosenberg and Rotem Golan

Michal Karsana (Master) in collaboration with Prof. Alon Amrani

Chen Davidson (PhD) in collaboration with Prof. Alon Amrani

Contact Us

Prof. Alon Angert:

Room 217 south | 02-6584758 | alon.angert@mail.huji.ac.il

Tal Vainer (Lab manager): 

lab.angert@gmail.com