The management of the subsurface and surface water resources is important for various purposes. Since the quantity and quality of water available for irrigation in India is variable from place to place, groundwater qu...The management of the subsurface and surface water resources is important for various purposes. Since the quantity and quality of water available for irrigation in India is variable from place to place, groundwater quality in the Dimbhe command area was evaluated for its suitability for domestic and irrigation purposes by collecting 37 dug well samples during the post monsoon period of 2014. The suitability assessment was made by estimating pH, electrical conductivity, total dissolved solids, and alkalinity besides major cations (Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>, and Mg<sup>2+</sup>) and anions (, Cl<sup>-</sup>, , and ). Out of 37 groundwater samples, 5.41% represents good water, 62.16% indicate poor water, 29.73% indicate very poor water and 2.7% indicate water unsuitable for domestic purposes. Based on these analyses, irrigation quality parameters like, sodium absorption ratio, permeability index, Kelley’s ratio, soluble sodium percentage, residual sodium carbonate, %Mg, %Na, and Mg hazard ratio were calculated. Assessment of groundwater samples indicated that majority of them in both the seasons are suitable for irrigation purposes.展开更多
GIS assist in specific planning and decision-making processes in irrigation through the input, spatial analysis and output of relevant information. The real strength of GIS is its ability to integrate information. Thi...GIS assist in specific planning and decision-making processes in irrigation through the input, spatial analysis and output of relevant information. The real strength of GIS is its ability to integrate information. This integration power makes the scope of GIS almost infinite. The unique integration capability of GIS allows disparate data sets to be brought together to create a complete picture of a situation. GIS technology illustrates relationships, patterns and connections that are not necessarily obvious in any one data set but are amazingly apparent once the data sets are integrated. GIS also helps us to assess the performance of the irrigation command areas. GIS based system helps a canal to analyze the spatial information about its engineers and farmers to improve planning, management and supply of water resources to its corresponding blocks. In order to manage the water efficiently in the command area, it is needless to say that calculation and evaluation of water demands in detail at block and minor level to be given overriding priority. Blocks and Chak boundaries can be delineated from the Digital Elevation Model using GIS techniques. These boundaries will help to plan and allocate the water resources to improve the water allocation strategies and in turn water use efficiency and can make inter-canal comparisons. The delineated block boundaries can be refined exactly using the drainage, topography and existing canal network in GIS platform.展开更多
The groundwater geochemistry of Dimbhe command area of Ghod River basin was evaluated based on major ions characteristic to decide its suitability for drinking, domestic use, and irrigation. Groundwater samples from d...The groundwater geochemistry of Dimbhe command area of Ghod River basin was evaluated based on major ions characteristic to decide its suitability for drinking, domestic use, and irrigation. Groundwater samples from different depth (shallow and deep) aquifer were collected and investigated for pH, electrical conductivity (EC), total dissolved solid (TDS), Ca, Mg, Na, K, Cl, SO4, CO3, HCO3, NO3, Fe, and Mn. The results show that the shallow groundwater is dominated by Ca-HCO3 and Na-HCO3 and deep aquifer by Na-HCO3 water facies. The sodium adsorption ratio (SAR) and salinity hazard indicate that the groundwater from the shallow and deep aquifer is suitable for irrigation purposes, and part of the intermediate aquifer is not suitable for crop irrigation. Groundwater from the shallow and deep aquifer is regarded as fresh water and suitable for drinking, domestic and agricultural irrigation use.展开更多
文摘The management of the subsurface and surface water resources is important for various purposes. Since the quantity and quality of water available for irrigation in India is variable from place to place, groundwater quality in the Dimbhe command area was evaluated for its suitability for domestic and irrigation purposes by collecting 37 dug well samples during the post monsoon period of 2014. The suitability assessment was made by estimating pH, electrical conductivity, total dissolved solids, and alkalinity besides major cations (Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>, and Mg<sup>2+</sup>) and anions (, Cl<sup>-</sup>, , and ). Out of 37 groundwater samples, 5.41% represents good water, 62.16% indicate poor water, 29.73% indicate very poor water and 2.7% indicate water unsuitable for domestic purposes. Based on these analyses, irrigation quality parameters like, sodium absorption ratio, permeability index, Kelley’s ratio, soluble sodium percentage, residual sodium carbonate, %Mg, %Na, and Mg hazard ratio were calculated. Assessment of groundwater samples indicated that majority of them in both the seasons are suitable for irrigation purposes.
文摘GIS assist in specific planning and decision-making processes in irrigation through the input, spatial analysis and output of relevant information. The real strength of GIS is its ability to integrate information. This integration power makes the scope of GIS almost infinite. The unique integration capability of GIS allows disparate data sets to be brought together to create a complete picture of a situation. GIS technology illustrates relationships, patterns and connections that are not necessarily obvious in any one data set but are amazingly apparent once the data sets are integrated. GIS also helps us to assess the performance of the irrigation command areas. GIS based system helps a canal to analyze the spatial information about its engineers and farmers to improve planning, management and supply of water resources to its corresponding blocks. In order to manage the water efficiently in the command area, it is needless to say that calculation and evaluation of water demands in detail at block and minor level to be given overriding priority. Blocks and Chak boundaries can be delineated from the Digital Elevation Model using GIS techniques. These boundaries will help to plan and allocate the water resources to improve the water allocation strategies and in turn water use efficiency and can make inter-canal comparisons. The delineated block boundaries can be refined exactly using the drainage, topography and existing canal network in GIS platform.
文摘The groundwater geochemistry of Dimbhe command area of Ghod River basin was evaluated based on major ions characteristic to decide its suitability for drinking, domestic use, and irrigation. Groundwater samples from different depth (shallow and deep) aquifer were collected and investigated for pH, electrical conductivity (EC), total dissolved solid (TDS), Ca, Mg, Na, K, Cl, SO4, CO3, HCO3, NO3, Fe, and Mn. The results show that the shallow groundwater is dominated by Ca-HCO3 and Na-HCO3 and deep aquifer by Na-HCO3 water facies. The sodium adsorption ratio (SAR) and salinity hazard indicate that the groundwater from the shallow and deep aquifer is suitable for irrigation purposes, and part of the intermediate aquifer is not suitable for crop irrigation. Groundwater from the shallow and deep aquifer is regarded as fresh water and suitable for drinking, domestic and agricultural irrigation use.
