The influence of physical catchment properties on baseflow in semi-arid environments

被引:72
作者
Mwakalila, S
Feyen, J
Wyseure, G
机构
[1] Katholieke Univ Leuven, ILWM, B-3000 Louvain, Belgium
[2] Katholieke Univ Leuven, Fac Agr & Appl Biol Sci, B-3000 Louvain, Belgium
关键词
data-based mechanistic modelling; baseflow index; physical catchment indices; multiple regression; semi-arid environments;
D O I
10.1006/jare.2001.0947
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The present paper examines the influence of physical catchment properties on baseflow in semi-arid environments. It relates the dimensionless quantity, baseflow index (BFI) derived from data-based mechanistic modelling approach to dimensionless indices representing topographic, geologic and climatic properties. The relationship is derived using a progression of techniques, from inspection and correlation analysis, through stepwise regression and finishing with multiple regression. The BFI has a strong relationship with climate and geology. Catchments with high rainfall or low evapo-transpiration underlain with granites or basalt tend to give high baseflow. Within the topographical parameters tested, drainage density index has strong relationship with BFI. The approach used in this paper provides a viable alternative for baseflow estimation on ungauged semi-arid catchments using drainage density, geology and climate indices as key factors. (C) 2002 Elsevier Science Ltd.
引用
收藏
页码:245 / 258
页数:14
相关论文
共 29 条
  • [1] Toward a generalization of the TOPMODEL concepts: Topographic indices of hydrological similarity
    Ambroise, B
    Beven, K
    Freer, J
    [J]. WATER RESOURCES RESEARCH, 1996, 32 (07) : 2135 - 2145
  • [2] INTERPRETATION OF RECESSION FLOW
    ANDERSON, MG
    BURT, TP
    [J]. JOURNAL OF HYDROLOGY, 1980, 46 (1-2) : 89 - 101
  • [3] [Anonymous], 2001, Rainfall-runoff Modelling, The Primer
  • [4] [Anonymous], 1970, J Hydrol, V10, DOI [DOI 10.1016/0022-1694(70)90255-6, 10.1016/0022-1694(70)90255-6]
  • [5] Beven K., 1995, Computer models of watershed hydrology., P627
  • [6] Beven K.J., 1979, HYDROL SCI B, V24, P43, DOI [DOI 10.1080/02626667909491834, 10.1080/02626667909491834]
  • [7] Chow T.V., 1988, APPL HYDROLOGY
  • [8] CLAUSEN B, 1992, NORD HYDROL, V23, P73
  • [9] *DANIDA WORLD BANK, 1995, JOINT STUD INT WAT L
  • [10] Relating baseflow to catchment properties in south-eastern Australia
    Lacey, GC
    Grayson, RB
    [J]. JOURNAL OF HYDROLOGY, 1998, 204 (1-4) : 231 - 250