article published yes Simone Fatichi author cf8e546b-a9b0-11f0-a43b-aa89ed1b56d6 Gabriel G. Katul author Valeriy Y. Ivanov author Christoforos Pappas author Athanasios Paschalis author Ada Consolo author Jongho Kim author Paolo Burlando author An expression that separates biotic and abiotic controls on the temporal dynamics of the soilmoisture spatial coefficient of variation C v(h) was explored via numerical simulations using a mechanisticecohydrological model, Tethys-Chloris. Continuous soil moisture spatiotemporal dynamics at an exemplaryhillslope domain were computed for six case studies characterized by different climate and vegetationcover and for three configurations of soil properties. It was shown that abiotic controls largely exceed theirbiotic counterparts in wet climates. Biotic controls on C v(h) were found to be more pronounced in Mediter-ranean climates. The relation between Cv(h) and spatial mean soil moisture h was found to be unique in wetlocations, regardless of the soil properties. For the case of homogeneous soil texture, hysteretic cyclesbetween C v(h) and h were observed in all Mediterranean climate locations considered here and to a lesserextent in a deciduous temperate forest. Heterogeneity in soil properties increased C v(h) to values commen-surate with field observations and weakened signatures of hysteresis at all of the studied locations. Thisfinding highlights the role of site-specific heterogeneities in hiding or even eliminating the signature ofclimatic and biotic controls on C v(h), thereby offering a new perspective on causes of confounding resultsreported across field experiments. American Geophysical Union2015 eng 0043-1397 1944-797310.1002/2014wr016102 5153505-3524 yes Fatichi, S., Katul, G. G., Ivanov, V. Y., Pappas, C., Paschalis, A., Consolo, A., … Burlando, P. (2015). Abiotic and biotic controls of soil moisture spatiotemporal variability and the occurrence of hysteresis. <i>Water Resources Research</i>. American Geophysical Union. <a href="https://doi.org/10.1002/2014wr016102">https://doi.org/10.1002/2014wr016102</a> Fatichi S, Katul GG, Ivanov VY, et al. Abiotic and biotic controls of soil moisture spatiotemporal variability and the occurrence of hysteresis. <i>Water Resources Research</i>. 2015;51(5):3505-3524. doi:<a href="https://doi.org/10.1002/2014wr016102">10.1002/2014wr016102</a> S. Fatichi, G.G. Katul, V.Y. Ivanov, C. Pappas, A. Paschalis, A. Consolo, J. Kim, P. Burlando, Water Resources Research 51 (2015) 3505–3524. Fatichi S, Katul GG, Ivanov VY, Pappas C, Paschalis A, Consolo A, Kim J, Burlando P. 2015. Abiotic and biotic controls of soil moisture spatiotemporal variability and the occurrence of hysteresis. Water Resources Research. 51(5), 3505–3524. Fatichi, Simone, et al. “Abiotic and Biotic Controls of Soil Moisture Spatiotemporal Variability and the Occurrence of Hysteresis.” <i>Water Resources Research</i>, vol. 51, no. 5, American Geophysical Union, 2015, pp. 3505–24, doi:<a href="https://doi.org/10.1002/2014wr016102">10.1002/2014wr016102</a>. Fatichi, Simone, Gabriel G. Katul, Valeriy Y. Ivanov, Christoforos Pappas, Athanasios Paschalis, Ada Consolo, Jongho Kim, and Paolo Burlando. “Abiotic and Biotic Controls of Soil Moisture Spatiotemporal Variability and the Occurrence of Hysteresis.” <i>Water Resources Research</i>. American Geophysical Union, 2015. <a href="https://doi.org/10.1002/2014wr016102">https://doi.org/10.1002/2014wr016102</a>. S. Fatichi <i>et al.</i>, “Abiotic and biotic controls of soil moisture spatiotemporal variability and the occurrence of hysteresis,” <i>Water Resources Research</i>, vol. 51, no. 5. American Geophysical Union, pp. 3505–3524, 2015. 224952026-07-27T12:30:24Z2026-08-03T13:39:10Z