Summary
We aim to evaluate the non-symbiotic N2 fixation in forest soils. We are planning to collect soil samples from approx. 15 sites of the thinning-fertilization long-term experiment to measure the non-symbiotic N2 fixation in soils. We expect to collect samples along a latitudinal gradient in order to evaluate the effect of temperature on non-symbiotic N2 fixation.
N2 fixation forest soil nitrogen temperature gradient