Gerard Rocher-Ros

Gerard Rocher-Ros

PhD in Ecosystem Ecology

Swedish University of Agricultural Sciences

About me

I am a catchment ecologist, with a background in modelling and complex systems science. The broad aim of my research is to understand how the movement of energy and matter in landscapes shapes ecosystems in face of climate change, with water as the main vector of connectivity. More specifically, I am interested in landscape patterns of carbon and nutrient storage and flux, the biogeochemical mechanisms that regulate these patterns within and across ecosystems, and how to translate these processes across spatial and temporal scales to understand their broader implications.

I graduated in Environmental Sciences in Barcelona university (Spain), which gave mesome knowledge about pressing environmental issues but I felt I lacked the tools. Therefore after graduating I went to the Mathematics department of the Autonomous University in Barcelona, and did an M.S in Modelling for Science, specialized in Statistical modelling and Complex Systems. My master thesis was about Multifractal patterns in boreal forests and how they mediate the response to fire dynamics. Download the thesis here.

I did my PhD at Umeå University, with my thesis entitled “Biophysical controls on CO2 evasion from inland waters” and under the supervision of Reiner Giesler. I used fine scale measurements of landscape properties, together with temporal sensor data, to separate the role of physics in gas evasion from metabolic processes that affect the Carbon dynamics in aquatic systems. The “kappa” (in English would be “thesis cover”) can be found here.

My current postdoctoral research, funded by the Swedish Research council, consists in developing a Carbon processing model in streams networks, that I will complement with empirical observations across latitudinal and land cover gradients in Europe. Before that, I did a postdoc with Johan Olofsson and Ryan Sponseller also at Umeå university, focused broadly on the coupling between terrestrial and aquatic ecosystems at high latitudes, and how multiple herbivores (reindeers, rodents and moths) mediate the export of carbon and nutrients to recipient aquatic systems.

This website is pretty basic, where you can find publications, the CV, as well as some software tools I have been using for my research.

Interests

  • Biogeochemistry
  • Limnology
  • Landscape ecology
  • Complex systems

Education

  • PhD in Biogeochemistry, 2019

    Umeå University, Sweden

  • M.S. in Statistical Modelling, 2014

    Autonomous University of Barcelona, Spain

  • B.S. in Environmental Sciences, 2013

    Barcelona University, Spain

Software

Interactive app for discharge estimation

Shiny app to calculate discharge in a river using the slug method

Global river slopes

R script to estimate the reach slope of any river in the world

Publications

Groundwater discharge as a driver of methane emissions from Arctic lakes

Lateral CH4 inputs to Arctic lakes through groundwater discharge could be substantial and constitute an important pathway that links …
Groundwater discharge as a driver of methane emissions from Arctic lakes

Distinct concentration-discharge dynamics in temperate streams and rivers: CO2 exhibits chemostasis while CH4 exhibits source limitation due to temperature control

Streams and rivers are significant sources of carbon dioxide (CO2) and methane (CH4) to the atmosphere. However, the magnitudes of …
Distinct concentration-discharge dynamics in temperate streams and rivers: CO2 exhibits chemostasis while CH4 exhibits source limitation due to temperature control

Global carbon dioxide efflux from rivers enhanced by high nocturnal emissions

Carbon dioxide (CO2) emissions to the atmosphere from running waters are estimated to be four times greater than the total carbon (C) …
Global carbon dioxide efflux from rivers enhanced by high nocturnal emissions

Carbon emission from Western Siberian inland waters

High-latitude regions play a key role in the carbon (C) cycle and climate system. An important question is the degree of mobilization …
Carbon emission from Western Siberian inland waters

Emission of greenhouse gases from water tracks draining Arctic hillslopes

Experimental and ambient warming of Arctic tundra results in emissions of greenhouse gases to the atmosphere, contributing to a …
Emission of greenhouse gases from water tracks draining Arctic hillslopes