Elevated atmospheric CO2, fine roots and the response of soil microorganisms: a review and hypothesis
https://nph.onlinelibrary.wiley.com/doi/epdf/10.1046/j.1469-8137.2000.00687.x
Oxygen and hydrogen isotopic characterization of rainfall and throughfall in four South Korean cool temperate forests
https://doi.org/10.1080/02626667.2017.1358813
Long-term enhancement of N availability and plant growth under elevated CO2 in a semi-arid grassland
https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/j.1365-2435.2008.01398.x