Lunch seminar "Micro-scale based biogeochemistry studies: Are they needed to advance our understanding of nitrogen cycling in soils?"

There is an increasing acceptance of the need to study spatio-temporal patterns at the micro-scales in soils in order to understand macro-scale behaviour (at field and catchment scales). I will present potential and pitfalls of both (i) the ¹⁵N isotope dilution technique for studying gross N processes in soils at the macro-scale as well as (ii) the use of secondary ion mass spectrometry to study N processes at the micro-scale.