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Morphometric analysis of a badland affected portion of the Mandakini River sub-watershed, central India
Arabian Journal of Geosciences Pub Date : 2020-06-02 , DOI: 10.1007/s12517-020-05405-8
Nikhilesh Singh , Medha Jha , Sanjay Tignath , Bhola Nath Singh

Morphometric analysis has evolved as an important tool for basin management and to study the process performing in the basin. The trio of remote sensing, GIS, and morphometric analysis gives the best possible results in investigating, supervising, and understanding the basin. The present study comprises a detailed study of morphometric parameters in a badland affected sub-watershed of the Mandakini River. The sub-watershed is located in the northern foot slope of Vindhyan mountain range. The area consists of many structural and denudational hills, pediment, and pediplain complexes. Geologically soft sedimentary rocks are in the majority in this terrain and the area comprises a diverse range of gullies, in terms of shape and size. The intensity of the study is both macro and micro watershed level (up to the third and fourth sub-watershed level). The analysis is mostly based on derived parameters such as bifurcation ratio (Rb), drainage density (Dt), stream frequency (Fs), drainage texture (Dt), length of overland flow (Lg), and constant of channel maintenance (C), shape parameters such as circularity Ratio (Rc), elongation ratio (Re), form factor (Rf), and in relief parameter ruggedness number (Rn) and dissection index (Di). The analysis shows that low infiltration rate, i.e., a higher value of infiltration number (70.0), triggers high runoff and hence increases drainage density (4.5), drainage frequency (15.16), and drainage texture (25.23) and ultimately from an erosional setup in the sub-watershed and it is gradually deforming the land into a rugged terrain.

中文翻译:

印度中部曼达基尼河子流域受荒地影响的部分的形态计量学分析

形态分析已经发展成为流域管理和研究流域过程的重要工具。遥感,GIS和形态计量学分析三者在调查,监督和了解流域方面提供了最佳的结果。本研究包括对曼达基尼河受荒地影响的小流域地貌参数的详细研究。该分水岭位于Vindhyan山脉的北麓。该地区由许多结构性和具粘性的丘陵,山形饰物和山形饰物复合体组成。在该地形中,地质软的沉积岩占多数,该区域在形状和大小方面包括各种各样的沟壑。研究的强度是宏观和微观分水岭水平(直到第三和第四子分水岭水平)。分析主要基于派生参数,例如分叉比(Rb),排水密度(Dt),水流频率(Fs),排水结构(Dt),陆流长度(Lg)和河道维持常数(C)形状参数,例如圆度比(Rc),伸长率(Re),形状系数(Rf),以及凸凹度中的粗糙度数(Rn)和剥离指数(Di)。分析表明,较低的入渗率,即较高的入渗数(70.0),会触发高径流,从而增加排水密度(4.5),排水频率(15.16)和排水质地(25.23),最终是由侵蚀造成的在该小流域,土地逐渐变形为崎terrain的地形。排水质地(Dt),地表水流长度(Lg)和河道维持常数(C),形状参数,例如圆度比(Rc),伸长率(Re),形状系数(Rf)和起伏参数的坚固性数(Rn)和解剖指数(Di)。分析表明,较低的入渗率,即较高的入渗数(70.0),会触发高径流,从而增加排水密度(4.5),排水频率(15.16)和排水质地(25.23),最终来自侵蚀环境在该小流域,土地逐渐变形为崎terrain的地形。排水质地(Dt),地表水流长度(Lg)和河道维持常数(C),形状参数,例如圆度比(Rc),伸长率(Re),形状系数(Rf)和起伏参数的坚固性数(Rn)和解剖指数(Di)。分析表明,较低的入渗率,即较高的入渗数(70.0),会触发高径流,从而增加排水密度(4.5),排水频率(15.16)和排水质地(25.23),最终是由侵蚀造成的在该小流域,土地逐渐变形为崎terrain的地形。
更新日期:2020-06-02
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