Regional modelling of rainfall-induced runoff using hydrological model by incorporating plant cover effects: case study in Kelantan, Malaysia

被引:5
|
作者
Mansor, Shattri [1 ]
Saadatkhah, Nader [2 ]
Khuzaimah, Zailani [1 ]
Asmat, Arnis [3 ]
Adnan, Nor Aizam [4 ]
Adam, Siti Noradzah [1 ]
机构
[1] Univ Putra Malaysia, Fac Engn, Dept Civil Engn, Geospatial Informat Sci Res Ctr, Serdang 43400, Selangor, Malaysia
[2] Res Inst Cultural Heritage & Tourism, Geol Res Ctr, Tehran 1343111369, Tehran, Iran
[3] Univ Teknol MARA UiTM, Fac Appl Sci, Sch Chem & Environm Studies, Shah Alam, Selangor, Malaysia
[4] Univ Teknol MARA UiTM, Ctr Studies Surveying Sci & Geomat, Shah Alam, Selangor, Malaysia
关键词
Runoff modelling; Interception loss water; LAI; Land cover changes; LEAF-AREA INDEX; INTERCEPTION; CATCHMENT;
D O I
10.1007/s11069-018-3322-z
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The objective of this paper is to develop a spatial temporal runoff modelling of local rainfall patterns effect on the plant cover hilly lands in Kelantan River Basin. Rainfall interception loss based on leaf area index, loss/infiltration on the ground surface, and runoff calculation were considered as the main plant cover effects on the runoff volume. In this regard, a hydrological and geotechnical grid-based regional model (integrated model) was performed using Microsoft Excel(A (R)) and GIS framework system for deterministic modelling of rainfall-induced runoff by incorporating plant cover effects. The infiltration process of the current model was integrated with the precipitation distribution method and rainfall interception approach while the runoff analysis of integrated model was employed based on loss/infiltration water on the ground surface with consideration of water interception loss by canopy and the remaining surface water. In the following, the spatial temporal analysis of rainfall-induced runoff was performed using 10 days of hourly rainfall events at the end of December 2014 in Kelantan River Basin. The corresponding changes in pressure head and consequent rate of infiltration were calculated during rainfall events. Subsequently, flood volume is computed using local rainfall patterns, along with water interception loss and the remaining surface water in the study area. The results showed the land cover changes caused significant differences in hydrological response to surface water. The increase in runoff volume of the Kelantan River Basin is as a function of deforestation and urbanization, especially converting the forest area to agricultural land (i.e. rubber and mixed agriculture).
引用
收藏
页码:739 / 764
页数:26
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