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Ambio. 2015 Jan;44 Suppl 1:S6-16. doi: 10.1007/s13280-014-0583-y.

Screening variability and change of soil moisture under wide-ranging climate conditions: Snow dynamics effects.

Author information

1
Department of Physical Geography and Quaternary Geology, Stockholm University, 106 91, Stockholm, Sweden, lucile.verrot@natgeo.su.se.

Abstract

Soil moisture influences and is influenced by water, climate, and ecosystem conditions, affecting associated ecosystem services in the landscape. This paper couples snow storage-melting dynamics with an analytical modeling approach to screening basin-scale, long-term soil moisture variability and change in a changing climate. This coupling enables assessment of both spatial differences and temporal changes across a wide range of hydro-climatic conditions. Model application is exemplified for two major Swedish hydrological basins, Norrström and Piteälven. These are located along a steep temperature gradient and have experienced different hydro-climatic changes over the time period of study, 1950-2009. Spatially, average intra-annual variability of soil moisture differs considerably between the basins due to their temperature-related differences in snow dynamics. With regard to temporal change, the long-term average state and intra-annual variability of soil moisture have not changed much, while inter-annual variability has changed considerably in response to hydro-climatic changes experienced so far in each basin.

PMID:
25576276
PMCID:
PMC4289003
DOI:
10.1007/s13280-014-0583-y
[Indexed for MEDLINE]
Free PMC Article

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