José L. J. Ledesma

Foto de perfil del investigador José L. J. Ledesma

Investigación

I am a catchment hydrologist, biogeochemist, and modeller with a strong focus on understanding and managing river network dynamics. My research bridges basic and applied science, combining theoretical, empirical, and modelling approaches to enhance our fundamental understanding of hydrological and biogeochemical processes while developing practical tools to support decision-making in both public and private sectors.

 

My work investigates the mobilization, transformation, and transport of solutes from catchment soils—particularly riparian zones—to surface waters, alongside in-stream processes. While forest headwaters serve as my primary experimental units, my research extends to larger downstream water bodies, covering diverse ecoregions, from boreal to Mediterranean climates, and temporal scales, from rainfall event dynamics to long-term future projections.

 

Although much of my research has focused on organic carbon cycling, I work with a wide array of chemical constituents including nutrients, base cations, metals, sulfur, microplastics, and greenhouse gases. My applied research employs advanced modelling techniques to tackle real-world challenges by informing sustainable river network management strategies and guiding cost-effective water treatment solutions for the drinking water industry.

 

Current projects

SUDOCQU - Soil moisture’s Uncertain influence on riparian DOC quantity and Quality

Publicaciones relevantes

  • [35] Musolff A, Tarasova L, Rinke K, and Ledesma JLJ. (2024). Forest Dieback Alters Nutrient Pathways in a Temperate Headwater Catchment. Hydrological Processes, 38, e15308, doi: 10.1002/hyp.15308.
  • [34] Norling M, Hurley R, Schell T, Futter MN, Rico A, Vighi M, Blanco A, Ledesma JLJ, and Nizzetto L. (2024). Retention efficiency for microplastic in a landscape estimated from empirically validated dynamic model predictions. Journal of Hazardous Materi
  • [33] Peñarroya X, Lupon A, Triadó-Margarit X, Martí E, Ledesma JLJ, Ribot M, Soler M, Casamayor EO, and Bernal S (2023). Dissolved organic carbon bioreactivity and DOC:DIN stoichiometry control ammonium uptake in an intermittent Mediterranean stream. Fres
  • [32] Colls M, Vida A, Zufiarre A, Camacho-Santamans A, Laini A, González-Ferreras AM, Filipe AF, Pérez-Calpe AV, Freixa A, Lupon A, Santamans AC, Pradhan A, Espinosa C, Vera-Trujillo C, Gutiérrez-Canovas C, Mendoza-Lera C, Bruno D, Mercado-Bettin D, Moran
  • [31] Bernal S, Cohen MJ, Ledesma JLJ, Kirk L, Martí E, and Lupon A (2022). Stream metabolism sources a large fraction of carbon dioxide to the atmosphere in two hydrologically contrasting headwater streams. Limnology and Oceanography, 67, 2621-2634. doi:
  • [30] Ledesma JLJ, Lupon A, Martí E, and Bernal S (2022). Hydrology and riparian forests drive carbon and nitrogen supply and DOC:NO3− stoichiometry along a headwater Mediterranean stream. Hydrology and Earth System Sciences, 26, 4209–4232. doi: 10.5194/he
  • [29] Guasch H, Bernal S, Bruno D, Carney Almroth B, Cochero J, Corcoll N, Cornejo D, Gacia E, Kroll A, Lavoie I, Ledesma JLJ, Lupon A, Margenat H, Morin S, Navarro E, Ribot M, Riis T, Schmitt-Jansen M, Tlili A, and Martí E (2022). Interactions between mic
  • [28] Castelar S, Bernal S, Ribot M, Merbt SN, Tobella M, Sabater F, Ledesma JLJ, Guasch H, Lupon A, Gacia E, Drummond JD, and Martí E (2022). Wastewater treatment plant effluent inputs influence the temporal variability of nutrient uptake in an intermitte
  • [26] Attermeyer K, Casas-Ruiz JP, Fuß T, Pastor A, Cauvy-Fraunie S, Sheath D, Nydahl AC, Doretto A, Portela AP, Doyle BC, Simov N, Guttman-Roberts C, Niedrist GH, Timoner X, Evtimova VV, Barral-Fraga L, Basic T, Audet J, Deininger A, Busst G, Fenoglio S,
  • [25] Ledesma JLJ, Ruiz-Pérez G, Lupon A, Poblador S, Futter MN, Sabater F, and Bernal S (2021). Future changes in the Dominant Source Layer of riparian lateral water fluxes in a subhumid Mediterranean catchment. Journal of Hydrology, 595, 126014. doi: 10.
  • [24] Hoffmeister S, Murphy KR, Cascone C, Ledesma JLJ, and Köhler SJ (2020). Evaluating the accuracy of two in situ optical sensors to estimate DOC concentrations for drinking water production. Environmental Science: Water Research & Technology, 6, 2891-2
  • [23] Morbidelli R, García-Marín AP, Al Mamun A, Atiqur RM, Ayuso-Muñoz JL, Bachir Taouti M, Baranowski P, Bellocchi G, Sangüesa-Pool C, Bennett B, Oyunmunkh B, Bonaccorso B, Brocca L, Caloiero T, Caporali E, Caracciolo D, Casas-Castillo MC, Catalini CG, C
  • [22] Xu J, Morris PJ, Liu J, Ledesma JLJ, and Holden J (2020). Increased dissolved organic carbon concentrations in peat‐fed UK water supplies under future climate and sulfate deposition scenarios. Water Resources Research, 56, e2019WR025592. doi: 10.1029
  • [21] Ledesma JLJ, Montori A, Altava-Ortiz V, Barrera-Escoda A, Cunillera J, and Àvila A (2019). Future hydrological constraints of the Montseny brook newt (Calotriton arnoldi) under changing climate and vegetation cover. Ecology and Evolution, 9, 9736-974
  • [20] Deutscher J, Kupec P, Kučera A, Urban J, Ledesma JLJ, and Futter MN (2019). Ecohydrological consequences of tree removal in an urban park evaluated using open data, free software and a minimalist measuring campaign. Science of the Total Environment,
  • [19] Lannergård E, Ledesma JLJ, Fölster J, and Futter MN (2019). An evaluation of high frequency turbidity as a proxy for riverine total phosphorus concentrations. Science of the Total Environment, 651, 103-113, doi: 10.1016/j.scitotenv.2018.09.127.
  • [18] Lupon A, Ledesma JLJ, and Bernal S (2018). Riparian evapotranspiration is essential to simulate stream flow dynamics and water budgets in a Mediterranean catchment, Hydrology and Earth System Sciences, 22, 4033-4045. doi: 10.5194/hess-22-4033-2018.
  • [17] Bravo AG, Kothawala DN, Attermeyer K, Tessier E, Bodmer P, Ledesma JLJ, Audet J, Casas-Ruiz JP, Catalán N, Cauvy-Fraunie S, Colls M, Deininger A, Evtimova VV, Fonvielle JA, Fuß T, Gilbert P, Herrero Ortega S, Liu L, Mendoza-Lera C, Monteiro J, Mor JR
  • [16] Ledesma JLJ, Kothawala DN, Bastviken P, Maehder S, Grabs T, and Futter MN (2018). Stream dissolved organic matter composition reflects the riparian zone, not upslope soils in boreal forest headwaters, Water Resources Research, 54, 3896-3912. doi: 10.
  • [15] O’Driscoll C, Ledesma JLJ, Coll J, Murnane JG, Nolan P, Mockler E, Futter MN, and Xiao L (2018). Minimal climate change impacts on natural organic matter forecasted for a potable water supply in Ireland, Science of the Total Environment, 630, 869–877