印度喀拉拉邦雨影区流域系统形态分析及其水文意义(英文)

编号 zgly0001585625

文献类型 期刊论文

文献题名 印度喀拉拉邦雨影区流域系统形态分析及其水文意义(英文)

作者 JobinTHOMAS  SabuJOSEPH  K.P.THRIVIKRAMJI  GeorgeABE 

作者单位 DepartmentofEnvironmentalSciences  UniversityofKerala  Thiruvananthapuram-695581  Kerala  India  DepartmentofGeology  UniversityofKerala  Thiruvananthapuram-695581  Kerala  India  CentreforWaterResourcesDevelopmentandManagement  Sub-Centr 

母体文献 Journal of Geographical Sciences 

年卷期 2011年06期

年份 2011 

分类号 P333 

关键词 morphometry  drainagebasin  PambarRiver  WesternGhats  India 

文摘内容 The rain shadow regions requisite a comprehensive watershed development and management plan for sustainable water resources management. The Pambar River Basin (PRB) lies on the rain shadow region of the southern Western Ghats, India, where climate showed marked intra-basin variation. A morphometric analysis was done to evaluate the drainage characteristics of PRB using topographical maps and digital elevation data. PRB was divided into eighteen 4th order basins (SB1-SB18), distributed along various climatic gradients. Lower order streams mostly dominate PRB and drainage pattern is a function of relief and structure. The terrain is highly dissected and prone to soil erosion during heavy storms and the elongated shape of PRB enables easier flood management. The influence of climate on drainage characteristics was evidently emphasized in basin morphometry. Four distinctively different classes were identified based on the morphometric similarities. The significance of morphometric analysis on the hydrological characterization is discussed and the relevance of the present study in water harvesting has been explicated.