中国东南亚热带小流域混合农业区水文过程的实验研究(简报)

1ScopeIn the Sun Jia Catchment several gauging in-stallations are carefully put up to elucidate the hy-drology and the matter fluxes through the catch-ment.At present,it is already possible to quantifydistinct spatial differences in principal water flu-xes.The setup bears the potential to further deep-en the understanding of the small scale processesinvolved in lateral water fluxes and soil erosion.Multi-point monitoring of soil water potentials atvarious soil depths together with hydrograph…

HYDROLOGY OF A SMALL CATCHMENT WITH MIXED AGRICULTURE IN SUBTROPICAL SOUTHEAST CHINA——RESULTS FROM AN EXPERIMENTAL STUDY (SUMMARY)

In this paper, the hydrology of Sun Jia Catchment, a small catchment with mixed agriculture in Subtropical Southeast, China, is studied. The objective of the research is to characterize the catchment flows in an agricultural catchment with an irrigation system in Subtropical China and to estimate catchment irrigation flow using hydrograph analysis methods. In the research, the weighting model and multiple regression model were established to estimate catchment irrigation outflow according to hydrographs of the inflows and outflows of the catchment. In the end, it is concluded that the estimated irrigation outflows amounted to 3 695 mm, 2 613 mm and 2 757 mm during 2001, 2002 and 2003, respectively, which covered 70%, 60% and 64% of the total catchment outflows in the corresponding years.