Evolution of scientific questions over 50 years in the Kervidy-Naizin catchment: from catchment hydrology to integrated studies of biogeochemical cycles and agroecosystems in a rural landscape

C. Gascuel-Odoux, O. Fovet, G. Gruau, L. Ruiz, P. Merot

Abstract


Catchment studies on water quality started in the 1960s, when scientists identified long-term environmental impacts and realized the complexity involved in environmental degradation and recovery. Since scientists need to understand biogeochemical and hydrological processes in detail, long-term observatories have been established over time, particularly in the field of catchment hydrology and biochemistry. The AgrHyS (for “AgroHydroSystem”) observatory comprises two small catchments in Brittany (France) and this article unfolds the evolution over 50 years of the scientific questions and related observations and studies in one of them, the Kervidy-Naizin catchment. While a well-defined set of variables was monitored since the beginning (the “basic observatory basket”), the research topics and additional monitored variables were much broader. The first 25 years focused on hydrological and biogeochemical processes, while the next 25 years focused on more integrated issues related to soil ecology and landscape biogeochemical cycles. The AgrHyS observatory has succeeded in fostering interdisciplinary research. The current challenge is the engagement of the observatory in international networks to enable inter-comparison of hydro-systems response to gradients of different land use and environmental conditions.

Keywords


research catchment; long-term monitoring; interdisciplinary research; environmental observatory

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References


Akkal, N. 2010. Description des systèmes d'exploitation du bassin versant de Kervidy-Naizin. NitroEurope IP, 71 pp.

Ambroise, B. 1999. Du BVRE, bassin versant de recherche expérimental, au BVR, bassin versant de recherche. In: D. Houi, J.L. Verrel (Eds.), Du concept de BVRE à celui de zone atelier dans les recherches menées en eaux continentales, Cemagref Edition.

Anderson, S.P., Bales, R.C., Duffy, C.J. 2008. Critical Zone Observatories: Building a network to advance interdisciplinary study of Earth surface processes. Mineralogical Magazine 72 (1), 7-10. https://doi.org/10.1180/minmag.2008.072.1.7.

Aubert, A.H., Gascuel-Odoux, C., Gruau, G., Akkal, N., Faucheux, M., Fauvel, Y., Grimaldi, C., Hamon, Y., Jaffrézic, A., Lecoz-Boutnik, M., Molénat, J., Petitjean, P., Ruiz, L., Merot, P. 2013. Solute transport dynamics in small, shallow groundwater-dominated agricultural catchments: insights from a high-frequency, multisolute 10 yr-long monitoring study. Hydrology and Earth System Sciences 17 (4), 1379-1391. https://doi.org/10.5194/hess-17-1379-2013.

Aubert, A.H., Kirchner, J.W., Gascuel-Odoux, C., Faucheux, M., Gruau, G., Mèrot, P. 2014. Fractal water quality fluctuations spanning the periodic table in an intensively farmed watershed. Environmental Science & Technology 48 (2), 930-937. https://doi.org/10.1021/es403723r.

Beaujouan., V., Durand, P., Ruiz, L., Aurousseau, P., Cotteret, G. 2002. A hydrological model dedicated to topography-based simulation of nitrogen transfer and transformation: rationale and application to the geomorphology– denitrification relationship. Hydrological Processes 16 (2), 493-507. https://doi.org/ 10.1002/hyp.327.

Bell, M., Flechard, C., Fauvel, Y., Häni, C., Sintermann, J., Jocher, M., Menzi, H., Hensen, A., Neftel, A. 2017. Ammonia emissions from a grazed field estimated by miniDOAS measurements and inverse dispersion modelling. Atmospheric measurement techniques 10, 1875-1892. https://doi.org/10.5194/amt-10-1875-2017.

Benhamou, C., Salmon-Monviola, J., Durand, P., Grimaldi, C., Merot, P. 2013. Modeling the interaction between fields and a surrounding hedgerow network and its impact on water and nitrogen flows of a small watershed. Agricultural Water Management 121, 62-72. https://doi.org/10.1016/j.agwat.2013.01.004.

Beven, K., Kirkby, M.J. 1979. A physically based variable contributing area model of basin hydrology. Hydrological Sciences Bulletin 24, 43-69. https://doi.org/10.1080/02626667909491834.

Bullock, A. Acreman. M. 2003. The role of wetlands in the hydrological cycle. Hydrology and Earth System Sciences 7 (3), 358-389. https://doi.org/10.5194/hess-7-358-2003.

Buysse, P., Flechard, C.R., Hamon, Y., Viaud, V. 2016. Impacts of water regime and land-use on soil CO2 efflux in a small temperate agricultural catchment. Biogeochemistry 130, 267-288. https://doi.org/10.1007/s10533-016-0256-y.

Callahan, J.T. 1984. Long-Term Ecological Research. BioScience 34 (6), 363-367. https://doi.org/10.2307/1309727.

Cann, Ch. 1998a. Evolution de l’agriculture et de sa pression polluante sur le bassin et en Bretagne. In: C. Cheverry (Ed.), Agriculture intensive et qualité des eaux, Inra Editions, pp. 25-40.

Cann, Ch. 1998b. Transferts de polluants vers l’eau. In: C. Cheverry (Ed.), Agriculture intensive et qualité des eaux, Inra Editions, pp. 233-250.

Chaplot, V., Walter, C., Curmi, P. 2000. Improving soil hydromorphy prediction according to DEM resolution and available pedological data. GEODERMA 97 (3-4), 405-422. https://doi.org/10.1016/S0016-7061(00)00048-3.

Chaplot, V., Bernoux, M., Walter, C., Curmi, P., Herpin, U. 2001. Soil carbon storage prediction in temperate hydromorphic soils using a morphologic index and digital elevation model. Soil Science 166 (1), 48-60. https://doi.org/10.1097/00010694-200101000-00008.

Cheverry, C. 1998. Agriculture intensive et qualité des eaux. Inra Editions, 297 pp.

Crave, A., Gascuel-Odoux, C. 1997. The influence of topography on time and space distribution of soil surface water content. Hydrological Processes 11 (2), 203-210. https://doi.org/10.1002/(SICI)1099-1085(199702)11:2<203::AID-HYP432>3.0.CO;2-K.

Curmi, P., Durand, P., Gascuel-Odoux, C., Merot, P., Walter, C., Taha, J.M. 1998. Hydromorphic soils, hydrology and water quality: spatial distribution and functional modelling at different scales. Nutrient Cycling in Agroecosystems 50, 127-142. https://doi.org/10.1023/A:1009775825427.

Davranche, M., Pourret, O., Gruau, G., Dia, A., Le Coz-Bouhnik, M. 2005. Adsorption of REE(III)-humate complexes onto MnO2: Experimental evidence for cerium anomaly and lanthanide tetrad effect suppression. Geochimica et Cosmochimica Acta 69 (20), 4825-4835. https://doi.org/10.1016/j.gca.2005.06.005.

Davranche, M., Grybos, M., Gruau, G., Pédrot, M., Dia, A., Marsac, R. 2011. Rare earth element patterns: A tool for identifying trace metal sources during wetland soil reduction. Chemical Geology 284 (1-2), 127-137. https://dx.doi.org/10.1016/j.chemgeo.2011.02.014.

Dia, A., Gruau, G., Olivie-Lauquet, G., Riou, C., Molenat, J., Curmi, P. 2000. The distribution of rare earth elements in groundwaters: assessing the role of source-rock composition, redox changes and colloidal particles. Geochimica et Cosmochimica Acta 64 (24), 4131-4151. https://doi.org/10.1016/S0016-7037(00)00494-4.

Dupas, R., Gascuel-Odoux, C., Gilliet, N., Grimaldi, C., Gruau, G. 2015a. Distinct export dynamics for dissolved and particulate phosphorus reveal independent transport mechanisms in an arable headwater catchment. Hydrological Processes 29 (14), 3162-3178. https://doi.org/10.1002/hyp.10432.

Dupas, R., Gruau, G., Gu, S., Humbert, G., Jaffrézic, A., Gascuel-Odoux, C. 2015b. Groundwater control of biogeochemical processes causing phosphorus release from riparian wetlands. Water Research 84, 307-314. https://doi.org/10.1016/j.watres.2015.07.048.

Durand, P., Torres, J.L.J. 1996. Solute transfer in agricultural catchments: The interest and limits of mixing models. Journal of Hydrology 181 (1-4), 1-22. https://doi.org/10.1016/0022-1694(95)02922-2.

Durand, P., Moreau, P., Salmon-Monviola, J., Ruiz, L., Vertes, F., Gascuel-Odoux, C. 2015. Modelling the interplay between nitrogen cycling processes and mitigation options in farming catchments. Journal of Agricultural Science 153, 959-974. https://doi.org/10.1017/S0021859615000258.

Fovet, O., Ruiz, L., Faucheux, M., Molénat, J., Sekhar, M., Vertès, F., Aquilina, L., Gascuel-Odoux, C., Durand, P. 2015. Using long time series of agricultural-derived nitrates for estimating catchment transit times. Journal of Hydrology 522, 603-617. https://doi.org/10.1016/j.jhydrol.2015.01.030.

Franks, S.W., Gineste, P., Beven, K.J., Merot, P. 1998. On constraining the predictions of a distributed model: The incorporation of fuzzy estimates of saturated areas into the calibration process. Water Resources Research 34 (4), 787-797. https//doi.org/10.1029/97WR03041.

Grybos, M., Davranche, M., Gruau, G., Petitjean, P. 2007. Is trace metal release in wetland soils controlled by organic matter mobility or Fe-oxyhydroxides reduction? Journal of Colloid and Interface Science 314 (2), 490-501. https//doi.org/10.1016/j.jcis.2007.04.062.

Gu, S., Gruau, G., Dupas, R., Rumpel, C., Creme, A., Fovet, O., Gascuel-Odoux, C., Jeanneau, L., Humbert, G., Petitjean, P. 2017. Release of dissolved phosphorus from riparian wetlands: Evidence for complex interactions among hydroclimate variability, topography and soil properties. Science of the Total Environment 598, 421-431. https://doi.org/10.1016/j.scitotenv.2017.04.028.

Humbert, G., Jaffrezic, A., Fovet, O., Gruau, G., Durand, P. 2015. Dry-season length and runoff control annual variability in stream DOC dynamics in a small, shallow groundwater-dominated agricultural watershed. Water Resources Research 51, 7860-7877. https//doi.org/10.1002/2015WR017336.

Lambert, T., Pierson-Wickmann, A.-C., Gruau, G., Thibault, J.-N., Jaffrezic, A. 2011. Carbon isotopes as tracers of dissolved organic carbon sources and water pathways in headwater catchments. Journal of Hydrology 402 (3-4), 228-238. https://doi.org/10.1016/j.jhydrol.2011.03.014.

Le Bissonnais, Y., Cros-Cayot S., Gascuel-Odoux, C. 2002. Topographic dependence of aggregate stability, overland flow and sediment transport. Agronomie 22, 489-501. https//doi.org/10.1051/agro:2002024.

Merceron, M. 1999. Pollutions diffuses : du basin versant au littoral. Ifremer Editions, N° 24, 350 pp.

Merot, P., Crave, A., Gascuel-Odoux, C., Louhala, S. 1994. Effect of saturated areas on backscattering coefficient of the ERS-1 synthetic-aperture radar - first results. Water Resources Research 30 (2), 175-179. https//doi.org/10.1029/93WR02920.

Merot, P., Ezzahar, B., Walter, C., Aurousseau, P. 1995. Mapping waterlogging of soils using digital terrain models. Hydrological Processes 9 (1), 27-34. https//doi.org/10.1002/hyp.3360090104.

Merot, P., Hubert-Moy, L., Gascuel-Odoux, C., Clement, B., Durand, P., Baudry, J., Thenail, C. 2006. A method for improving the management of controversial wetland. Environmental Management 37 (2), 258-270. https://doi.org/10.1007/s00267-004-0391-4.

Molenat, J., Gascuel-Odoux, C. 2002. Modelling flow and nitrate transport in groundwater for the prediction of water travel times and of consequences of land use evolution on water quality. Hydrological Processes 16 (2), 479-492. https//doi.org/10.1002/hyp.328.

Molenat, J., Davy, P., Gascuel-Odoux, C., Durand, P. 1999. Study of three subsurface hydrologic systems based on spectral and cross-spectral analysis of time series. Journal of Hydrology 222 (1-4), 152-164. https://doi.org/10.1016/S0022-1694(99)00107-9.

Molenat, J., Gascuel-Odoux, C., Davy, P., Durand, P. 2005. How to model shallow water-table depth variations: the case of the Kervidy-Naizin catchment, France. Hydrological Processes 19 (4), 901-920. https//doi.org/10.1002/hyp.5546.

Molenat, J., Gascuel-Odoux, C., Ruiz, L., Gruau, G. 2008. Role of water table dynamics on stream nitrate export and concentration in agricultural headwater catchment (France). Journal of Hydrology 348 (3-4), 363-378. https://doi.org/10.1016/j.jhydrol.2007.10.005.

Molenat, J., Gascuel-Odoux, C., Aquilina, L., Ruiz, L. 2013. Use of gaseous tracers (CFCs and SF6) and transit-time distribution spectrum to validate a shallow groundwater transport model. Journal of Hydrology 480, 1-9. https://doi.org/10.1016/j.jhydrol.2012.11.043.

Morel, B., Durand, P., Jaffrezic, A., Gruau, G., Molenat, J. 2009. Sources of dissolved organic carbon during stormflow in a headwater agricultural catchment. Hydrological Processes 23 (20), 2888-2901. https//doi.org/10.1002/hyp.7379.

Pourret, O., Davranche, M., Gruau, G., Dia, A. 2007. Organic complexation of rare earth elements in natural waters: Evaluating model calculations from ultrafiltration data. Biogeochemica Acta 71, 2718-2735. https://doi.org/10.1016/j.gca.2007.04.001.

Tete, E., Viaud, V., Walter, C. 2015. Organic carbon and nitrogen mineralization in a poorly-drained mineral soil under transient waterlogged conditions: an incubation experiment. European Journal of Soil Science 66 (3), 427-437.

Viaud, V., Durand, P., Merot, P., Sauboua, E., Saadi, Z. 2005. Modeling the impact of the spatial structure of a hedge network on the hydrology of a small catchment in a temperate climate. Agricultural Water Management 74 (2), 135-163. https://doi.org/10.1016/j.agwat.2004.11.010.

Walbridge, M.R. 2013. A Long-Term Agro-ecosystem Research (LTAR) Network of the United States. Orgeval Basin. Paper No. 58. 51 pp.




DOI: http://dx.doi.org/10.18172/cig.3383

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