Impact Assessments of Rainfall–Runoff Characteristics Response Based on Land Use Change via Hydrological Simulation

Abstract

The hydrology response was studied considering the established fact of land use change in Dapoling basin. The whole period was divided into two (1965−1985 and 1986−2012) according to the major land use and land cover change in this region. Xinanjiang model was used to simulate discharge data in the two periods. The hydrologic response to the change could be evaluated by inspecting the response of model parameters and flood elements. The results show that the lag time varied, and the hydrologic elements including the mean runoff depth, flood peak and kurtosis coefficient varied with the rainfall depth. This result is significant for studying the response of runoff characteristic from land use and land cover change.

Keywords

• mean basin lag time
• land use and land cover change
• runoff characteristics
• Dapoling basin