DOI: 10.2166/wcc.2017.100
论文题名: The impact of land use/land cover changes and hydraulic structures on flood recession process
作者: Chang C. ; Feng P.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2017
卷: 8, 期: 3 起始页码: 375
结束页码: 387
语种: 英语
英文关键词: Flood recession
; Fuping river basin
; Hydraulic structures
; Land use/land cover changes
; Soil moisture storage capacity
英文摘要: Intensified human activities have brought about great changes in runoff generation and convergence. As a significant part of the hydrological process, recession flows represent the capacity of a river basin to store rain and drain it during dry periods; therefore study of the influence of human-induced factors on flood flow recession is of great importance. The Fuping sub-catchment was selected as the study area. Comparisons of land use/land cover and soil moisture storage capacity changes were made between reference and impaired periods. In addition, 64 recession flows during 1958–2005 were simulated using the linear and non-linear reservoir recession models. Then the influence of land use/land cover changes and hydraulic structures on recession flows was identified. Results showed that grassland and cultivated land declined in area while forests increased. At the same time, there was a sharp increase in the soil moisture storage capacity. The non-linear recession model, being more accurate than the linear recession model, was used to simulate the recession process. Compared with recession curves before 1980, the initial outflow from the basin declined while the power law coefficient and recession duration increased; the power law exponent was relatively constant. Furthermore, the shapes of recession curves were flattened. © IWA Publishing 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67540
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Hydraulic Engineering, Simulation and Safety, Tianjin University, Tianjin, China
Recommended Citation:
Chang C.,Feng P.. The impact of land use/land cover changes and hydraulic structures on flood recession process[J]. Journal of Water and Climate Change,2017-01-01,8(3)