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Multimethod assessment of evapotranspiration shifts due to non-irrigated agricultural development in Sweden
- Source :
- Journal of Hydrology. 484:55-62
- Publication Year :
- 2013
- Publisher :
- Elsevier BV, 2013.
-
Abstract
- Summary During the 20th century, Sweden underwent a persistent agricultural development. In this study, we use and combine historical hydroclimatic and agricultural data to investigate how this large scale change of land use, and subsequent intensification of crop production, affected regional hydrology in two adjacent Swedish drainage basins. We find a main increase of evapotranspiration (ET) as cultivated area and/or crop production increased during the period 1901–1940. Thereafter, ET stabilized at a new higher level. Comparison between the data given, water balance constrained ET quantification (ET wb ), and a range of different comparative estimates of purely climate driven ET (ET clim ) shows that only 31% of the steep 1901–1940 increase of ET wb can be explained by climate change alone. The remaining 69% of this ET wb shift, which occurred in both investigated drainage basins, is instead explainable to large degree by the regional land use conversion from seminatural grasslands to cultivated land and associated enhanced productivity of herbaceous species.
- Subjects :
- Hydrology
geography
geography.geographical_feature_category
Land use
Evapotranspiration
business.industry
Drainage basin
Hydroclimatic change
Climate change
Agriculture
Water balance
Hydrology (agriculture)
Hydrological flow partitioning
Environmental science
Land use, land-use change and forestry
business
Land use change
Water Science and Technology
Subjects
Details
- ISSN :
- 00221694
- Volume :
- 484
- Database :
- OpenAIRE
- Journal :
- Journal of Hydrology
- Accession number :
- edsair.doi.dedup.....86d24cd288e5fa54e63496fda4986cd6
- Full Text :
- https://doi.org/10.1016/j.jhydrol.2013.01.010