Soil Moisture Variations From Boreal Forests to the Tundra

Soil moisture has a profound influence on life Earth, and this vital water resource varies across space time. Here, we explored soil variations in boreal forest tundra environments, where comprehensive datasets are scarce. We installed sensors up to 14 cm depth at 503 measurement sites within seven study areas northern Europe. recorded 6 138 528 measurements capture of the snowless season from April September 2020. described spatio-temporal patterns moisture, test how these linked topography links vary found large spatial variation often less pronounced temporal all areas. that throughout periods both univariate multivariate models with topographic predictors showed great their performance relative moisture-topography relationships site-specific, as topography-based performed poorly when transferred one area another. There was no general solution would work well modelling topography. This should be carefully considered before applying proxies for moisture. Overall, data results highlight strong heterogeneity conditions environments.