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A GIS-based approach in drainage morphometric analysis of Rihand River Basin, Central India

机译：基于GIS的排水性形态测量分析，印度中部瑞爱河流域

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Abstract The study on morphometric attributes of the Rihand River Basin (RRB) in Central India was carried out for characterizing the hydrological response behavior using geographic information system (GIS). The RRB supports production of more than 20,000?MW electricity from coal-based thermal power plants. In light of this the management of RRB becomes paramount to sustain the industrial needs and livelihood of more than two million people in the study area. The Rihand River Basin comprises a dendritic drainage pattern where the maximum number of streams was found in the first order and the stream order increased with decrease in stream number. The mean bifurcation ratio was 1.57 which indicates that the drainage pattern is not affected by structural disturbances. The mean value of stream frequency, drainage density and drainage texture was 0.60?km/km_(2), 0.06 and 0.03, respectively. These characteristics showed dominance of coarse drainage texture, low runoff, low erosional potential, permeable subsurface material, high vegetation cover and low relief. The elongation ratio and form factor were 0.25 and 0.30, respectively, which suggest elongated shape of the basin having a flatter peak of flow for longer duration. Flood flows of such elongated basin are easier to manage and would be helpful in determining the effect of the catchment characteristics on hydrological assessment of the study area. The dominant slopes were east facing indicating high moisture content and low evaporation in the study area. The slope map revealed gentle and moderate nature which are excellent for groundwater recharge in the RRB.
机译：摘要采用地理信息系统（GIS）进行了印度中部地区中部地区rihand河流域（RRB）的形态学属性研究。 RRB支持生产超过20,000兆瓦的电力从煤基的热电厂电力。鉴于这一目标，RRB的管理变得最为倾向于在研究区内维持产业需求和超过200万人的生计。 Rihand河流域包括树枝状排水图案，其中在第一阶中发现了最大流数，并且流量增加随着流数的减少而增加。平均分叉比为1.57，表明排水模式不受结构干扰的影响。流频率，排水密度和排水纹理的平均值分别为0.60Ωkm / km_（2），0.06和0.03。这些特性显示出粗排水纹理，低径流，低腐蚀潜力，渗透性地下材料，高植被覆盖和低浮雕的主导地位。伸长率和外形分别为0.25和0.30，这表明盆地的细长形状具有更长的流动峰的持续时间。这种细长盆地的洪水更容易管理，并有助于确定集水区对研究区域水文评估的影响。主导斜坡是东方面向表明研究区内高水分含量和低蒸发。斜坡图显示了温和的温和性，适合于RRB中的地下水充电。

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