DOI: 10.3354/cr01421
Scopus记录号: 2-s2.0-85018646966
论文题名: Assessing the combined hazards of drought, soil erosion and local flooding on agricultural land: A Czech case study
作者: Trnka M. ; Semerádová D. ; Novotný I. ; Dumbrovský M. ; Drbal K. ; Pavlík F. ; Vopravil J. ; Štěpánková P. ; Vizina A. ; Balek J. ; Hlavinka P. ; Bartošová L. ; Žalud Z.
刊名: Climate Research
ISSN: 0936577X
出版年: 2016
卷: 70, 期: 2019-02-03 起始页码: 231
结束页码: 249
语种: 英语
英文关键词: Climate change
; Critical point
; Ephemeral gully erosion
; Fast-drying soil
; Sheet erosion
; Soil moisture
; Vulnerability
Scopus关键词: agricultural land
; agricultural practice
; climate change
; drought
; ecosystem service
; ephemeral stream
; flooding
; growing season
; gully erosion
; soil degradation
; soil erosion
; soil moisture
; vulnerability
; Czech Republic
英文摘要: Present-day agriculture faces multiple challenges, including ongoing climate change that is at many locations combined with soil degradation. The deterioration of soil properties through unsustainable agricultural practices and changing climate could lead to a fall in productivity beyond the point of no return with devastating effects on ecosystem services in large areas. Identifying areas with the highest hazard levels should therefore be a top priority. The key hazards for agricultural land in the Czech Republic considered in this study include the occurrence of water stress in the topsoil layer during both the first and second half of the growing season, the proportion of fast-drying soils, the risk of sheet and ephemeral gully erosion and the risk of local floods originating primarily from agricultural land. The results clearly marked regions where primary attention should be given to reduce the level of the hazards and/or to increase cropping capacity. These regions were found to be concentrated in the southeastern and northwestern lowland areas. Typical areas with the highest hazard levels were identified: regions with low precipitation and a high proportion of soils with a degraded or naturally occurring low water-holding capacity, and those with steeper than average slopes and terrain configurations in relatively large catchment areas that have urbanized countryside landscapes located at their lower elevations. Despite some limitations, the methods presented in this paper can be applied generally as the first step in developing strategies for efficient reduction of hazard levels. © The authors 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116347
Appears in Collections: 气候减缓与适应
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Recommended Citation:
Trnka M.,Semerádová D.,Novotný I.,et al. Assessing the combined hazards of drought, soil erosion and local flooding on agricultural land: A Czech case study[J]. Climate Research,2016-01-01,70(2019-02-03)