A loss of soil resources by prolific watersheds is a frequent problem confronting hydrologists and watershed managers. Soil erosion is a major factor in losses of soil. Different models are used for prediction of the amount of soil loss by erosion. In the present study, modelling using Revised Universal Soil Loss equation (RUSLE) is integrated with Remote Sensing (RS) and Geographical Information Systems (GIS) techniques and employed to estimate soil erosion and prioritization of watersheds of Udham Singh Nagar district of Uttarakhand, India. The results showed that Udham Singh Nagar district’s major portion (38.66%) is covered with agriculture land and only 17.57% area is covered with forest. Water-bodies have occupied 2.18% area of US Nagar district. A large variation has been noticed in case of built-up land which has been recorded as 5.71%. US Nagar has more agricultural land. Udham Singh Nagar is having plane topography hence the range of soil erosion is from 0 to 40 ton/ha/year. However, most region of Udham Singh Nagar district falls under the category of 0-2 ton/ha/year soil erosion. The value of soil losses in most of cases is less than 1 t/ha/yr except in case of 11 watersheds, where it is slightly higher than 1 t/ha/yr. Moreover, it has been concluded that major portion of Udham Singh Nagar district were slight prone category of soil erosion, and therefore, no major plan/activity is required for reducing soil losses. Only checking large amount of runoff and enhancing organic matter build up in the soil will suffice the purpose.

中文翻译：

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地理空间技术在印度北阿坎德邦的乌德姆·辛格·纳加尔地区的土地资源优先排序中的应用

多产流域流失土壤资源是水文学家和流域管理者经常面临的问题。水土流失是造成土壤流失的主要因素。使用不同的模型来预测侵蚀造成的土壤流失量。在本研究中，使用修正的通用土壤流失方程（RUSLE）进行建模与遥感（RS）和地理信息系统（GIS）技术相集成，并用于估算土壤侵蚀和印度北阿坎德邦Udham Singh Nagar区流域的优先次序。结果显示，Udham Singh Nagar地区的大部分地区（38.66％）被农业用地覆盖，只有17.57％的区域被森林覆盖。水体已占据美国纳加尔地区的2.18％面积。在已建成土地的情况下，已发现差异很大，已记录为5.71％。美国纳加尔拥有更多的农业用地。Udham Singh Nagar具有平面地形，因此土壤侵蚀的范围是0到40吨/公顷/年。但是，Udham Singh Nagar地区的大多数地区都属于0-2吨/公顷/年的水土流失类别。在大多数情况下，除11个流域（略高于1 t / ha / yr）的情况外，土壤流失的价值低于1 t / ha / yr。此外，得出的结论是，Udham Singh Nagar地区的大部分地区属于土壤侵蚀的易发类别，因此，无需采取任何重大计划/活动来减少水土流失。仅检查大量径流并增强土壤中堆积的有机物就可以达到目的。Udham Singh Nagar地区的大部分地区都属于0-2吨/公顷/年的土壤侵蚀类别。在大多数情况下，除11个流域（略高于1 t / ha / yr）的情况外，土壤流失的价值低于1 t / ha / yr。此外，得出的结论是，Udham Singh Nagar地区的大部分地区属于土壤侵蚀的易发类别，因此，无需采取任何重大计划/活动来减少水土流失。仅检查大量径流并增强土壤中堆积的有机物就可以达到目的。Udham Singh Nagar地区的大部分地区都属于0-2吨/公顷/年的土壤侵蚀类别。在大多数情况下，除11个流域（略高于1 t / ha / yr）的情况外，土壤流失的价值低于1 t / ha / yr。此外，得出的结论是，Udham Singh Nagar地区的大部分地区属于土壤侵蚀的易发类别，因此，无需采取任何重大计划/活动来减少水土流失。仅检查大量径流并增强土壤中堆积的有机物就可以达到目的。得出的结论是，Udham Singh Nagar地区的大部分地区属于土壤侵蚀的易发类别，因此，无需采取任何重大计划/活动来减少水土流失。仅检查大量径流并增强土壤中堆积的有机物就可以达到目的。得出的结论是，Udham Singh Nagar地区的大部分地区属于土壤侵蚀的易发类别，因此，无需采取任何重大计划/活动来减少水土流失。仅检查大量径流并增强土壤中堆积的有机物就可以达到目的。