Loading...
Thumbnail Image

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.

Browse

Search Results

Now showing 1 - 9 of 66
  • ThesisItemOpen Access
    Hydrological modelling using SWAT and effect of climate change on rainfall, runoff and sediment yield in the Naula Watershed, Uttarakhand
    (G.B. Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar, Uttarakhand. PIN - 263145, 2021-11) Saran, Bhagwat; Anil Kumar
    Soil and water is one of the most important natural resources for the survival on the earth. Without soil and water the life on the earth is not expected. At present increasing the rate of soil erosion is the matter of serious concern to feed such a huge population. Considering the above facts the present study is undertaken to assess the hydrological behaviour of Naula watershed. In this study the physically based Soil and Water Assessment Tool (SWAT) model was used to simulate the runoff and sediment yield from the Naula watershed of Ranikhet, Uttarakhand, India. The data used for this study was runoff and sediment yield from the year 1980 to 2012, two years of data (1980-1981) were used to warm up of the SWAT model. The calibration was performed using monthly observed data of runoff and sediment yield from the year 1982 to 2002 and that model was validated using same data from 2003 to 2012. The calibration and validation analysis of the model has been carried out at Naula watershed using SWAT-CUP with the algorithm SUFI-2 (Sequential Uncertainty Fitting) for the runoff and sediment yield. The results of monthly Nash-Sutcliffe efficiency (NSE), coefficient of determination (R2), percent bias (PBIAS) and RMSE-observations standard deviation ratio (RSR) were found to be acceptable for both calibration and validation period. The NSE, R2, PBIAS and RMSE for the runoff simulation were found as 0.68, 0.68, -3.3 and 0.56 during calibration period and 0.62, 0.64, -12.8 and 0.76 for the validation respectively. For the simulation of sediment yield using SWAT-CUP, the NSE, R2, PBIAS and RMSE were found as 0.69, 0.73, -1.3 and 0.56 for the calibration period and 0.75, 0.76, -2.6 and 0.51 for the validation period respectively. NDVI and LULC change detection were also analysed in this study. The highest NDVI values were found as 0.64, 0.72 and 0.55 for the year 2000, 2010 and 2020 respectively. In the LULC change detection, the land covered by the agriculture was 13.87 %, mixed forest 1.95 %, shrub land 6.59 %, barren land 0.58 %, fallow land 11.63 %, water body 0.49 % and evergreen forest 64.85 % of the total area for the year of 2000. However, the area of agriculture and forest gradually decrease while the area of barren land and fallow land increase in the year 2000-2010. In the year 2010-2020; the agriculture land and forest land, fallow land decrease and barren land increases twice as compared to previous year. The area of water body increases very less from the year 2000-2020. Climate change was studied by determining the percentage change of rainfall, runoff and sediment yield from the year 2020 to 2052 (33 years) and 2053 to 2085 (33 years) with the base value of 1980 to 2012 (33 years).
  • ThesisItemOpen Access
    Effect of temporally distributed rainfall patterns on runoff-sediment outflow from lands under sorghum and urad crops and with furrow treatment
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-02) Atul Prakash; Akhilesh Kumar
    In this study, laboratory experiments were conducted to assess the effect of temporally distributed rainfall patterns namely, Uniform rainfall distribution pattern (URDP), Advanced rainfall distribution pattern (ARDP), Delayed rainfall distribution pattern (DRDP) and Intermediate rainfall distribution pattern (IRDP) considering Sorghum and Urad crop lands and also lands treated with along the slope furrow and across the slope furrow on total runoff, average runoff rate, average sediment concentration and average sediment outflow rate under at selected land slopes. The observations were also analyzed to assess the efficacy of above soil biomass and below soil biomass of these cropping systems on runoff and sediment outflow. This study was conducted on experimental plots using artificially generated rainfall with the help of a rainfall simulation system of 3 m × 1 m size. Rainfall distribution pattern were created by using simulated rainfall and the simulator was operated for 30 minutes to provide a total rainfall of 4.4 cm depth. A comparison of observed values of runoff rate and sediment concentration for whole plant plot and below soil bio mass plot clearly revealed that the for whole plant plot, the lowest runoff rate occurred for URDP while the lowest value of sediment concentration was found in case IRDP at 4% land slope. For 8% land slope, the maximum average runoff rate and sediment concentration rate were observed in case of IRDP. This study clearly revealed that in case of below soil mass plot, the minimum value of runoff was observed in case of URDP and maximum was for ARDP at 4% land slope while at 8% land slope the minimum value of runoff was observed in case of IRDP and maximum was for URDP. Similarly, the minimum average sediment concentration in this case was observed as 1236.66 PPM in case of DRDP and the maximum value of sediment concentration was observed as 1483.33 PPM in case of URDP at 4% land slope. At 8% land slope, the minimum and maximum values of runoff were observed in case of IRDP & URDP rainfall pattern while the minimum and maximum values of sediment concentration were observed in case of DRDP and ARDP rainfall pattern respectively. The observations and analysis of the findings clearly indicated that in case of runoff, plot with below soil bio mass provided better reduction as compared to above soil bio mass plot for every rainfall distribution pattern. In case of sediment, however, the situation was not that clear as in case of IRDP and DRDP below soil bio mass plot provided better reduction in sediment concentration but n case of IRDP and ARDP, above soil bio mass plots had an edge over below soil bio mass plot in sediment outflow control. Observed values of total runoff indicated that the highest runoff rate occurred in case of land without any treatment under URDP while the lowest runoff rate occurred in case of lands treated with across the slope. It was also observed that the runoff rate got reduced by more than 50 in case of lands treated with across the slope as compared to lands without any treatment under every rainfall distribution pattern. It was also seen that the across the slope furrow treatment produced lesser runoff rate by 25.925%, 20.833%, 18.309% and 17.46% as compared to along the slope furrow treatment at 4% land slope under URDP, ARDP, DRDP and IRDP respectively.
  • ThesisItemOpen Access
    Comparative assessment of different geostatistical approaches for spatial interpolation of annual rainfall
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-02) Verma, Shikha; Singh, Praveen Vikram
    Rainfall is an essential component and acts as primary input for hydrological modelling. The availability of reliable data is necessarily important to obtain the maximum benefit from hydrological analysis. The rainfall in rajasthan is so irregular and unpredictable spatially as well as temporally. The measurement of rainfall is very important however it is not practically possible to measure at each and every point. In such situations, rainfall measurements are typically available at a finite number of rain gauges therefore, determination of rainfall at various ungauged stations needs spatial interpolation to assess the spatial variability of the region. The analysis was done over annual rainfall of rajasthan having 253 raingauging stations for a period of 40 years (1980–2019). The present study was an attempt to analyze and compare the performance of different geostatistical spatial interpolation techniques, univariate, Ordinary Kriging (OK), and multivariate, Simple Co-kriging (SCK) and Ordinary Co-kriging (OCK), to interpolate the annual rainfall. In both the techniques, spherical, circular and Gaussian models were used to find the best-fitted semivariogram for rainfall prediction purpose. The nugget-sill ratio was determined for all the nine models to decide the best fit model. The statistical analysis of nugget-sill ratio for univariate and multivariate geostatistical analysis revealed that the ordinary kriging (OK-Circular) and ordinary cokriging (OCK-Spherical) was followed the least standard deviation as 0.1121 and 0.1051, respectively in the dataset. The cross-validation results were depicted the overall comparative evaluation of the selected models in which OCK-Spherical outperformed over OK-Circular by the consideration of different statistical parameters. For OK-Circular, the value of ME, RMSE, MSDE, RMSSDE and ASE were found to be 0.6525, 210.1545, 0.0035, 1.0306 and 204.4955 and for the validation of ordinary co-kriging OCK-Spherical these statistical parameter values were found as 0.3221, 210.3274, 0.0023, 1.0367 and 203.6121, respectively. Finally, the study concluded that the incorporation of elevation as a secondary variable with rainfall, increases the accuracy of estimation of spatial continuity of rainfall at ungauged locations irrespective of its correlation with the rainfall. However, both the selected models performed well for the study area. Statistically, OCK-Spherical worked better than OK-Circular method of interpolation.
  • ThesisItemOpen Access
    Nitrogen release, sediment outflow and water quality parameters with uncoated and neem coated urea application from selected land slopes under simulated rainfall conditions
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-09) Singh, Sachin Kumar; Akhilesh Kumar
    The nutrients loss from fertilized agricultural lands not only results in the reduction of fertility of soil but also the accumulation of these chemicals in various water bodies produce harmful toxic effects rendering it unfit for human as well as for animal consumption. Urea fertilizer is highly soluble in water and volatile in nature and constitutes about 82% of the nitrogenous fertilizer used in India. The various pathways of nitrogen loss are volatilization, leaching, de-nitrification and through runoff. To minimize the nitrogen losses and environmental hazards, it becomes imperative to improve the efficiency of nitrogen use by controlling nitrogen release rate of urea as per the plants’ need. To accomplish this task, slowrelease fertilizers (SRF) are produced by coating urea with neem and other biodegradable materials. This neem coated urea helps in retaining nutrients for a longer time and ensures nitrogen availability to plants for significantly longer periods than an uncoated urea fertilizer. In this study extensive experimentation was done in the open field on experimental plots using uncoated and neem coated urea to study their nitrogen release pattern and its effects on sediment outflow and water quality parameters under varying rainfall intensity and different land slope conditions. To create controlled conditions of rainfall, artificial rainfall was generated by developing a portable rainfall simulation system which was capable of producing rainfall almost similar to natural rainfall with complete manual control. As per mandate of this study, apart from control (No crop i.e., bare soil), the nitrogen release rate, sediment outflow and water quality parameters were observed from (i) maize crop land and (ii) marigold crop land. Soil samples and runoff samples were collected and analysed to determine the status of nitrogen content in the soil and runoff water quality parameters such as TDS, pH and electrical conductivity on 2nd day, 6th day, 10th day and 14th after coated and uncoated urea applications. It was observed that developed portable rainfall simulator generated rainfall very similar to natural rainfall. The soil nitrogen content both in case of ordinary urea as well as neem coated urea applications was high in the beginning and decreased with time till 14th day. In case of ordinary urea, the rate of decrease in soil nitrogen content was very fast in the beginning (during 2nd day to 6th day) while in case of neem coated urea, the nitrogen release rate was slow and steady throughout the period. It thus implied that in case of neem coated urea application, the nitrogen becomes available to soil at a uniform rate for longer duration in bare land as well in crop land conditions. The percent nitrogen release up to 14th day after application of uncoated and neem coated urea with maize crop conditions was recorded to be 32.06% and 24.20% at 0% land slope, 33.11% and 25.23% at 2% land slope, 34.22% and 27.43% at 4% land slope, 37.68% and 30.60% at 8% land slope and 39.54% and 31.16% at 12% land slope, respectively under similar conditions. Similarly, sediment out flow and runoff water quality parameters were observed and analysed to see the effect of coated and uncoated urea applications under various combinations of input variables. To quantify the effect of involved variables on nitrogen release and water quality parameters, mathematical relationships were also developed for various combinations of the input variables.
  • ThesisItemOpen Access
    Swat based runoff and sediment yield modelling for upper Shivnath basin
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-01) Singh, Vijay Kumar; Devendra Kumar
    The study was undertaken with the major objectives of calibrating and validating the Soil and Water Assessment Tool (SWAT) model to simulate surface runoff and sediment yield for the Upper Shivnath basin. The meteorological and hydrological data are used from 1990 to 1994 for warmup period, 1995 to 2005 for calibration period and 2006 to 2013 for validation period. The developed SWAT model accurately simulated runoff and sediment yield of Upper Shivnath basin. The Soil and Water Assessment Tool based Wavelet Multilayer Perceptron (SWAT-WMLP), Soil and Water Assessment Tool based Wavelet Support Vector Machine (SWAT-WSVM), Soil and Water Assessment Tool based Wavelet Multilayer Perceptron-Genetic Algorithm (SWAT-WMLP-GA) and Soil and Water Assessment Tool based Wavelet Support Vector Machine-Genetic Algorithm (SWAT-WSVM-GA) accurately simulated runoff and sediment yield in comparison to SWAT model. Three different statistical downscaling methods namely delta method (DM), quantile mapping method (QMM) and empirical quantile mapping method (EQMM) were used for downscaling precipitation. Delta method performed better than quantile mapping and empirical quantile mapping methods for downscaling of rainfall at all gauging stations. Impact assessment of climate change during 2020-2039, 2040-2059, 2060-2079 and 2080-2099 scenarios shows that runoff and sediment yield of most of sub-basins will slightly decrease in future. The effect of land use change on runoff and sediment yield were assessed using future use land of 2025, 2045, 2065 and 2085 periods. It was showed that the urban land will increase by 44.56 % during 2025, 71.06 % during 2045, 95.33 % during 2065 and 134.12% during 2085 respectively, while agriculture land will decrease by 2.10 % during 2025, 3.35 % during 2045, 4.49 % during 2065 and 6.30 % during 2085. The surface runoff and sediment yield will increase during 2020-2039, 2040-2059, 2060-2079 and 2080-2099 future scenarios due to impact of land use change.
  • ThesisItemOpen Access
    Effective water management in Kesinga and Kotni Basins-application of WEAP model
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-11) Nivesh, Shreya; Kashyap, P.S.
    The relentless increase in population coupled with rising temperature, varying rainfall patterns, depleting groundwater, rising sea-levels, declining snowfall, retreating glaciers, intense tropical cyclones and resulting spurt in the demand for water is precipitating a major crisis for food security and rural economy, which require careful planning and management of limited non-renewable water resources. In this study an attempt has been made to develop Water Evaluation and Planning System (WEAP) model to analyse water balance, to achieve water security and sustainability in Kesinga and Kotni basins. FAO-CROPWAT 8.0 computer programme was used to compute crop irrigation requirements, reference evapotranspiration (ETo) and to develop scheme water supply for various districts of Kesinga and Kotni basins. Agroclimatic data were collected using FAO New_LocClim local climate estimator for each district. Meteorological data were collected from the India Meteorological Department (IMD), Pune and Hydrological data were collected from Central Water Commission (CWC), Mahanadi and Eastern Rivers division, Bhubaneswar, Odisha, India. The model was structured according to one scenario with a current accounts year (1990) and reference period (1991-2004) for external driving factors (irrigation demand, livestock, urbanization, and population) to predict their impacts on water balance or water supply system. Total annual water demand, unmet demand and streamflow for reference scenario in Kesinga basin were 77541 Mm3, 52631 Mm3 and 72818 Mm3 respectively while, in Kotni basin were 79174 Mm3, 48586 Mm3 and 27495 Mm3 respectively. The RMSE and NSE were 43.10 Mm3 and 99.40% respectively for Kesinga basin and 183.58 Mm3 and 72.02% respectively for the Kotni basin. Results indicated that tributaries of Mahanadi river do not have sufficient capacity to satisfy water demands in two basins and most of the tributaries will be under water stress conditions in all months of the year. Outcomes of the study demonstrated that WEAP model is a useful tool for integrated water resources management and suggested that dependence on surface water resources alone is not sufficient to satisfy water demands.
  • ThesisItemOpen Access
    GIUH models based on uniform and non uniform stream flow velocities
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2006-07) Behera, Ramakanta; Akhilesh Kumar
    The present study was carried out with the objective to develop mathematical models for Geomorphologic Instantaneous Unit Hydrograph by considering uniform stream flow velocity as well spatial distributed (non uniform) stream flow velocity along the stream network. In this approach, a unifying synthesis of the hydrological response of a catchment to surface runoff is attempted by deriving equations of general characteristics which express IUH as a function of Horton‟s numbers i.e. area ratio (RA), bifurcation ratio (RB) length ratio (RL), an internal scale parameter (LW) denoting the length of the highest order stream; and the peak velocity of the stream flow (v). In the present study, these geomorphologic properties of the watershed were determined by using Horton‟s stream order laws. GIUH model formulation was attempted considering the uniform and non uniform stream flow velocities in the watershed network. In case of uniform flow velocity, the stream flow is assumed to be constant throughout the watershed network and the flow velocity was determined from the geomorphological quantities of the network and the intensity of the effective rainfall, while in case of variable velocity model the flow velocity was considered to vary according to the slope pattern of the network of various order of streams. The conceived models were developed by using the geomorphological and hydrological data of a small hilly watershed known as “Arki watershed” comprising an area of 2460 ha in Solan district of Himachal Pradesh (India). The performance of both the models viz., GIUH with uniform and non uniform flow velocities has been evaluated for the study area considering sixteen storm events by employing various statistical error indices. Based on qualitative and quantitative comparison it was observed that both the GIUH models based on uniform and non uniform flow velocities are applicable for the study area. However, on the basis of the calculated values of statistical indices it was found that the GIUH-UV model performed better in comparison to the GIUH-VV model except in the computation of peak rate of runoff where the GIUH-VV was found to be better performing than GIUH-UV model.
  • ThesisItemOpen Access
    Optimization of spatial allocation of agricultural activities for a Himalayan watershed: an application of multi-objective programming approach
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2006-08) Joshi, Digvijay; Singh, J.K.
    In the present study, an attempt has been made to develop the optimal land use model by using multi-objective programming technique with the basic objectives viz. to minimize the soil loss and maximize net return from the Chorgaliya watershed based on resource constraints such as land availability, water availability, labour opportunities FYM availability and fodder availability. All the relevant data and information to develop the model were collected and were synthesized as per the requirement of the model. The Universal Soil Loss Equation (USLE) was used to determine the soil loss from different land use activities. Having determined the soil loss coefficients, the other coefficients such as water coefficient, labour coefficient, FYM coefficient and fodder coefficient were also estimated and were incorporated to develop the model. In order to make model socially acceptable, economically viable and ecologically conducive to the inhabitants of the watershed, three alternative plans, viz. Plan I: Existing cropping pattern and livestock status with the restriction on crops preferred by farmers, Plan II. Existing cropping pattern and livestock status with the restriction on orchards and Plan III. Existing cropping pattern with the restriction on the food grains were developed. All these alternative plans were compared with the existing land use pattern in the Chorgalia watershed. Among all the alternative plans, the Plan II was found to generate maximum net return to the farmers and the least amount of soil loss from the study area.
  • ThesisItemOpen Access
    Runoff estimation from a small watershed using GIUH approach in a GIS environment
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2005-07) Nema, Manish Kumar; Singh, J.K.
    The conventional techniques of derivation of unit hydrographs require historical rainfall- runoff data. In a developing country like India, the most of the small watersheds are still ungauged; hence adequate runoff data are not generally available. For such type of catchments tedious procedure of regionalization of model parameters are sought. The research in the field of fluvial geomorphology of the problems facing the hydrologist today, in this regard the concept of geomorphologic instantaneous unit hydrograph (GIUH) has been introduced. Wherein the characteristics of instantaneous unit hydrograph are related to the geomorphological and climatic characteristics of the watershed. The major advantage of this approach is that this linking of geomorphologic parameters with the hydrologic characteristics of the watershed can lead to a simple and useful procedure to simulate the hydrologic behavior of various catchments, particularly ungauged ones. In the present study the geomorphologic characteristics of Kothuwatari watershed, a sub-watershed of upper Damodar Valley, Hazaribagh, Jharkhand, India have been estimated from the toposheets 72H/7 and 72H/8 by using the GIS software ILWIS 3.0. The GIUH based Clark and Nash models have been used for the simulation of nine storm events. The direct surface runoff (DSRO) hydrographs derived by both the models have been compared with the observed DSRO hydrographs. The performance of the models for the study area has been evaluated by employing performance indices viz., (i) absolute relative error, (ii) Absolute percentage deviation in peak flow rates, (iii) coefficient of efficiency, (iv) absolute average error, (v) root mean square error and (vi) average error in volume. The results of the study showed that both the developed models provide a reasonably good estimate of direct surface runoff based on these performance indices. However it was difficult to conclude that which model performs better for the study area as based on percentage absolute deviation in peak and average error in volume, the GIUH based Clark model was found better while based on rest of the indices the GIUH based Nash model was found better.