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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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  • ThesisItemOpen Access
    Laboratory studies on soil scour downstream of chute and stepped spillways for varying conditions of flow energy
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-01) Dheeraj Kumar; Akhilesh Kumar
    The study of scour downstream of hydraulic structures such as large dams, stilling basins, diversion works, underflow gates, and culverts constitutes an important field of research due to its frequent occurrence in engineering applications. The performance of a drop structure depends largely upon its capacity to dissipate the hydraulic energy of flowing water. The amount of energy dissipation is the difference between the incoming and outgoing energies and the performance of a stepped spillway is dependent on the size of its individual step at a particular drop and discharge In this study, laboratory experiments were conducted to study energy dissipation and its effect on maximum depth of scour and the amount of soil scoured considering different soil materials using a chute spillway and stepped spillway with three selected step sizes for varying discharge conditions. In all cases the total drop was kept constant. Observations were recorded for amount of energy dissipation, outflow energy, maximum scour depth and amount of soil scoured for various combinations of step size and flow rate using different soil materials. To conduct experiments the developed models were installed in the Hydrologic Simulation and Sedimentation Laboratory which is near to Soil and Water Conservation Engineering department. The amount of energy dissipated was minimum for chute spillway while in case of stepped spillway the amount of energy dissipation was found to be the maximum for step size of 2.54 cm and then decreased gradually as the step size increased for a given discharge. The maximum scour depths were found to be increasing with the increase in outflow energy of flow. On the basis of above, the maximum weight of the scoured soil was found to be increasing with the increase in outflow energy of flow. The above findings clearly indicate that scour depth and scour weight of soil downstream of a drop structure are directly related with the energy dissipation. The use of stepped spillway result in better energy dissipation and thereby resulting in lesser scour depth and scour weight.
  • ThesisItemOpen Access
    Sediment outflow from mulch treatments at varying land slopes under simulated rainfall conditions
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-07) Singh, Sachin Kumar; Kashyap, P.S.
    The problem of soil erosion in India is very serious. About 18.5% of the world’s total soil erosion takes place in India, which is about16.4tons/ha/year.Organic mulches are very effective in preventing soil erosion,reduce sediment transport rate, runoff rate and increasing infiltration. The study was carried out with the objectives to observe the sediment outflow from various mulch treatments at selected land slopes under simulated rainfall conditions by using rainfall simulator of size 10 m × 1.2 m × 0.5 m with the locally available soil material collected from College of Agriculture Business Management, Pantnagar. In the present study, paddy straw, hay and trash mulches were selected to observe the effect of mulching in soil loss reduction. The quantity of these three types of mulches were taken as, 6 ton/ha, 8 ton/ha and 10 ton/ha and for each mulch treatment, three rainfall intensities viz. 11cm/h, 13cm/h and 14.65cm/h at 0%, 2% and 4% land slopes were selected. The duration of rainfall was fixed (10 minutes) for every mulch treatment. The total runoff volume was found to be varying with different mulch rates for particular rainfall input and land slope. The runoff distribution pattern was observed to be increasing with the increase in land slope. The average sediment concentration and outflow was found to be increasing with the increasein land slope,but sediment concentration and outflow decreased with increasing mulch rate for particular land slope and rainfall intensity. The sediment outflow rate for no mulch treated land was higher as compared to trash mulch, hay mulch and paddy straw mulch treated lands. Mathematical relationships were developed for relating sediment outflow rate, sediment concentration,land slope and rainfall intensity for a particular mulch treatment. It was observed that values of sediment outflow rate and average sediment concentration had a good correlation with rainfall intensity and land slope for each mulch treatment. The correlation coefficients of developed models were found to be more than 90%.
  • ThesisItemOpen Access
    Drought analysis using different indices for Pantnagar and Dehradun areas of Uttarakhand
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-07) Ram Kumar; Anil Kumar
    In this present study, the annual and seasonal rainfall series of Pantnagar and Dehradun areas were analyzed using India Meteorological Department (IMD) classification of drought as mild, moderate, severe and extreme drought as per percentage rainfall deviation. Based on the drought analysis using the SPI criteria, appropriate crop planning and design of rainwater harvesting and storage structures in the drought affected areas can be proposed in drought affected areas. Standardized Precipitation Index (SPI) was calculated at different time scales (1, 3, 6, 12, and 24 months). The SPI is a drought index based on the probability of an observed precipitation deficit occurring over a given prior time period. The assessment periods considered range from 1 to 36 months. The monthly data were converted into seasonal rainfall of four month period as pre-monsoon (February to May), monsoon (June to September) and post-monsoon (October to January) and multi-temporal rainfall series with running sum for 1-month, 3-month, 6-month, 12-month and 24-month durations for both the locations. The SPI, calculated for a desired period at any location, are based on the long term precipitation record (30 years or more). The positive SPI values show greater than medium precipitation, while negative SPI values indicate less than medium precipitation. The results shows that the SPI can be used for better assessment of drought as it considers larger range of moving sums of rainfall data. Since SPI uses for the running sum of rainfall values at multi-time scales (1 to 24 months) and more variables depending on the statistical distributions used, it gives better assessment of meteorological drought at multitime scales. The 3-month SPI can be used for short term drought monitoring and agricultural crop planning and 12-month SPI can be used for long term drought monitoring and water resource planning.
  • ThesisItemOpen Access
    Stochastic modelling of monthly rainfall series at Pantnagar (Uttarakhand)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-07) Navale, Manisha Madhav; Kashyap, P.S.
    The monthly rainfall data of 1981 to 2010 of Pantnagar were used for development of stochastic models. While the data for the year 2011 and 2012 were used for forcasting. To bring stationarity in the historical data series square root transformation was used. Fourier analysis was performed for determination of periodic component. The base period and number of significant harmonics was determined by autocorrelogram analysis and analysis of variance test respectively. Periodic component was removed by deducting from trend free series to obtain stochastic series. Stochastic series was standardised and normalised. The stochastic series was modeled by autoregressive (AR) family of Models. The Box-Pierce Portmanteau level was used to fit the test. The performance of model in regeneration and prediction of monthly rainfall value were evaluated quantitatively and qualitatively by comparison of historical and selected model correlograms and goodness of fit test such as mean forecast test, mean absolute error, root means square error. Results showed that properties propagated in the regenerated and predicted data series are similar to those of the historical series. In general, there is a good agreement between autocorrelation functions of historical and regenerated time series.
  • ThesisItemOpen Access
    Laboratory studies on soil scour downstream of chute and stepped spillways for varying conditions of flow energy
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2013-01) Dheeraj Kumar; Akhilesh Kumar
    The study of scour downstream of hydraulic structures such as large dams, stilling basins, diversion works, underflow gates, and culverts constitutes an important field of research due to its frequent occurrence in engineering applications. The performance of a drop structure depends largely upon its capacity to dissipate the hydraulic energy of flowing water. The amount of energy dissipation is the difference between the incoming and outgoing energies and the performance of a stepped spillway is dependent on the size of its individual step at a particular drop and discharge In this study, laboratory experiments were conducted to study energy dissipation and its effect on maximum depth of scour and the amount of soil scoured considering different soil materials using a chute spillway and stepped spillway with three selected step sizes for varying discharge conditions. In all cases the total drop was kept constant. Observations were recorded for amount of energy dissipation, outflow energy, maximum scour depth and amount of soil scoured for various combinations of step size and flow rate using different soil materials. To conduct experiments the developed models were installed in the Hydrologic Simulation and Sedimentation Laboratory which is near to Soil and Water Conservation Engineering department. The amount of energy dissipated was minimum for chute spillway while in case of stepped spillway the amount of energy dissipation was found to be the maximum for step size of 2.54 cm and then decreased gradually as the step size increased for a given discharge. The maximum scour depths were found to be increasing with the increase in outflow energy of flow. On the basis of above, the maximum weight of the scoured soil was found to be increasing with the increase in outflow energy of flow. The above findings clearly indicate that scour depth and scour weight of soil downstream of a drop structure are directly related with the energy dissipation. The use of stepped spillway result in better energy dissipation and thereby resulting in lesser scour depth and scour weight.