@NjHassel sadly passed away on January 8th. He was an exceptional human being, father, husband, friend and scientist.

A 🧵highlighting some of his many scientific contributions.
#fungi #nitrogen #isotopes #climatechange 1/n Image
@NjHassel did this MS with Matthew Germino at @IdahoStateU

He tested how Cenococcum colonization influences establishment of young conifers at alpine-treeline. 2/n

He did his PhD with Michael Allen at @UCRiverside focusing on ecophysiology of #tropicalforests

He described strategies by evergreen and drought-deciduous trees to overcome seasonal water limitations in tropical forests. 3/n

....and how soil #nitrogen dynamics were affected by the impact of #hurricane Wilma in a #tropicalforest. 4/n

During this PhD @NjHassel also explored new technologies to measure belowground carbon dynamics. 5/n

@NjHassel moved to @_SLU and continued working on nutrient dynamics in boreal forests.

He tested how different levels of nitrogen addition influence soil CO2 efflux and fungal sporocarp production. 6/n

@NjHassel explored the role that #ectomycorrhizae plays in the structure and function of #borealforests. 7/n

In recent years @NjHassel returned to work in #tropical ecosystems

He studied how canopy cover influences local soil water isotopic composition and #soil water dynamics. 8/n

…and among many other things…

@NjHassel lately explored a new approach to measure #methane oxidation in #peatlands using automated measurements. 9/n

@NjHassel will always be remembered for his love to nature, family and friends... Image

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