期刊
AMBIO
卷 44, 期 -, 页码 S6-S16出版社
SPRINGER
DOI: 10.1007/s13280-014-0583-y
关键词
Soil moisture; Groundwater; Snow dynamics; Climate change; Landscape scale; Hydrological basin
资金
- Stockholm University strategic environmental research program Ekoklim
- Swedish Research Council Formas [2012-790]
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, Norrstrom and Pitealven. 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.
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