J
John Koestel
Researcher at Swedish University of Agricultural Sciences
Publications - 63
Citations - 2213
John Koestel is an academic researcher from Swedish University of Agricultural Sciences. The author has contributed to research in topics: Soil water & Macropore. The author has an hindex of 23, co-authored 45 publications receiving 1555 citations. Previous affiliations of John Koestel include University of Agricultural Sciences, Dharwad & Forschungszentrum Jülich.
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Journal ArticleDOI
Pedotransfer functions in Earth system science: challenges and perspectives
Kris Van Looy,Johan Bouma,Michael Herbst,John Koestel,Budiman Minasny,Umakant Mishra,Carsten Montzka,Attila Nemes,Yakov Pachepsky,José Padarian,Marcel G. Schaap,Brigitta Tóth,Brigitta Tóth,Anne Verhoef,Jan Vanderborght,Martine van der Ploeg,Lutz Weihermüller,Steffen Zacharias,Yonggen Zhang,Yonggen Zhang,Harry Vereecken +20 more
TL;DR: In this article, a review of the existing PTFs and new generation of PTF developed in the different disciplines of Earth system science is presented, emphasizing that PTF development has to go hand in hand with suitable extrapolation and upscaling techniques such that the PTF models correctly represent the spatial heterogeneity of soils.
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Influence of soil, land use and climatic factors on the hydraulic conductivity of soil
TL;DR: In this article, a new global database of hydraulic conductivity measured by ten-sion infiltrometer under field conditions was collated, and the results of their analyses on this data set contrast markedly with those of ex- isting algorithms used to estimate K. The data suggests that Ks depends more strongly on bulk density, or- ganic carbon content and land use.
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Understanding Preferential Flow in the Vadose Zone: Recent Advances and Future Prospects
TL;DR: In this paper, the authors review some of the more significant advances that have been made in the last decade in the study of preferential flow through the vadose zone as well as suggest some research needs in the coming years.
Journal ArticleDOI
Microbial spatial footprint as a driver of soil carbon stabilization.
Alexandra Kravchenko,Andrey Guber,Andrey Guber,Bahar S. Razavi,John Koestel,Michelle Quigley,G. P. Robertson,G. P. Robertson,Yakov Kuzyakov +8 more
TL;DR: A unique combination of X-ray micro-tomography and micro-scale enzyme mapping is used to demonstrate for the first time that plant-stimulated soil pore formation appears to be a major, hitherto unrecognized, determinant of whether new C inputs are stored or lost to the atmosphere.
Journal ArticleDOI
Relations between macropore network characteristics and the degree of preferential solute transport
TL;DR: In this paper, the authors examined the relationship between macropore network characteristics, hydraulic properties and state variables and measures of preferential transport and found that columns with smaller macroporosities, poorer local connectivity, and smaller near-saturated hydraulic conductivities exhibited a greater degree of preferential transfer.