Tejal Rana

Tejal Rana
L. M. College of Pharmacy, Ahmedabad · Department of Pharmaceutics

About

38
Publications
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572
Citations

Publications

Publications (38)
Article
Full-text available
Australian irrigated agriculture utilises about 70 % of all water used in the country, 21 % of which is derived from groundwater. Sustainability for irrigated agriculture also depends on keeping the watertables at a safe level below the rootzone to avoid salinisation and reduction in crop yields. There is a vital need to understand groundwater and...
Article
The estimation of groundwater evapotranspiration (ET) helps evaluate the risk of soil salinisation and the capacity of regional water resources. This paper focused on the effect of discretisation cell size on the output uncertainty of regional groundwater evapotranspiration modelling. The study area, the Liuyuankou Irrigation System (LIS), was disc...
Article
A simplified Multi-Objective Genetic Algorithm Optimization Model (MOM-GA) for canal scheduling under unequal flow rates of distributary canals is presented in this paper. This MOM-GA was designed for dynamic rotational scheduling with two objectives: to reduce fluctuations of flow rates of superior canals, and to reduce seepage losses of canal sys...
Article
Irrigation improves food security and human wellbeing. Poorly managed irrigation can raise watertables inducing waterlogging and salinity. Excessive groundwater withdrawals can lower watertables, impacting drainage and interlinked hydroeconomic systems. Sustainable irrigation management thus remains a global water policy challenge. This study devel...
Article
Full-text available
This paper presents a groundwater modelling framework to assess the hydraulic loading and salinity impacts on the underlying groundwater system of a large-scale land-based effluent treatment system for treating urban sewage of Yanggao County in the north of Shanxi Province, China. This land-based treatment system is called "Filtration and Irrigated...
Article
Often, information on spatial water use efficiencies in a whole-of-the-catchment context does not exist or does not feed into the water policy process to guide investments. Significant gains in water use efficiency are achievable but the water savings are often assumed rather than identified systematically. This paper used a whole-of-the- catchment...
Book
Full-text available
Dairy Water Situation and Outlook reports the water usage, and the associated environmental impacts and land capacity of Australian dairy regions. The objectives of the study are to:  analyse the water use of the dairy industry  analyse the key water issues faced by the dairy industry and  find the effects of current water use practices of the d...
Article
Full-text available
In this study, spatial analysis techniques were used to generate climatic zoning maps of the East Murrumbidgee Irrigation Area (MIA), Australia. Long term climate data were used to analyze and assess regional climatic variation by cluster analysis in a GIS environment. Based on thermal and moisture factors, four variables were chosen to develop cli...
Article
Estimation of channel seepage is all essential task in improving the management of earthen channel systems. The spatial distribution of seepage rates along the channels must be quantified to establish the economic and environmental merit of reducing conveyance losses. In Australia, due to recurring droughts and irrigation induced salinity concerns,...
Article
This paper describes the impact of rice hydraulic loading (percentage area under rice crop) on groundwater levels and salinity in the Murrumbidgee irrigation area (MIA), Australia using a MODFLOW-based modelling approach. The model simulations show that the groundwater levels will be in equilibrium after a fall of approximately 1m under most of the...
Article
Agricultural water markets can facilitate adjustments to water scarcity and competition and enhance economic efficiency, but markets cannot automatically balance efficiency, equity and environmental sustainability goals. The consequences of water trading on soil salinity in irrigation areas are not yet fully understood, but recognized as an issue t...
Article
Groundwater development has contributed significantly to food security and reduction in poverty in Pakistan. Due to rapid population growth there has been a dramatic increase in the intensity of groundwater exploitation leading to declining water tables and deteriorating groundwater quality. In such prevailing conditions, the hydrogeological apprai...
Data
Statistical Calibration Performance Measures (Murray-Darling Basin Commission, 2000)
Article
Ground water monitoring networks can provide vital information for sustainable water resources management. This involves the measurement of ground water level, solute concentration, or both. This article deals with the former. It optimizes network distribution of piezometer or data sampling wells to effectively monitor ground water levels under an...
Article
This paper provides results of an application of a holistic systematic approach of water accounting using remote sensing and GIS coupled with groundwater modeling to evaluate water saving options by tracking non-beneficial evaporation in the Liuyuankou Irrigation System (LIS) of China. Groundwater rise is a major issue in the LIS, where groundwater...
Article
Recharge to a saline, unconfined shallow-water-table aquifer is normally considered as an irrecoverable loss of water, but such thinking could be reviewed empirically. The use of an appropriate groundwater harvesting system does not only provide an opportunity to recover this lost water, but can also help in catchment salinity management and improv...
Article
The Standard Precipitation Index (SPI) is employed to track drought and assess the impact of rainfall on shallow groundwater levels in three selected irrigation areas of the Murray-Darling Basin in Australia. The continuous SPI method can provide better means of quantifying rainfall variability and correlating it with changes of shallow watertable...
Article
This paper gives mathematical details and sample applications of SWAGMAN Farm (SWAGMAN, Salt Water and Groundwater Management), a farm-scale hydrologic economic model that integrates agronomic, climatic, irrigation, hydrogeological and economic aspects of irrigated agriculture. The model is capable of determining optimum mix of land use to keep wat...
Article
This paper investigates a range of water savings options at irrigation system level and ranks these options according to the potential savings of each option and the economic return in terms of water saved (ML - megalitres) for each dollar invested. Most of the work was conducted on large-area farms of the Murrumbidgee Irrigation Area (MIA) and Col...
Article
Irrigation delivers major benefits in food security and human development. Irrigation also leads to waterlogging and salinity which threaten the sustainability of irrigated agriculture and pose major socioeconomic and environmental risks. The issue can be addressed by limiting net recharge to groundwater such that the water and salt keep natural eq...
Article
Drainage schemes for salinity management are aimed at lowering the shallow groundwater to help increase production and reduce ecological risks. Once the groundwater levels are lowered to desired agro-ecological thresholds, the drainage scheme's operation needs to be optimised according to the spatio-temporal variation in groundwater dynamics. Groun...
Article
The paper provides results of a study aimed at saving a substantial amount of water by maintaining deeper groundwater levels to prevent fallow evaporation and by reducing the cost of groundwater abstraction for lowland farmers. An integrated LIS economic appraisal model was developed that linked simulated response of hydrological modelling of diffe...
Article
Change in groundwater dynamics (in terms of changes in depth to watertable and its salinity) is a key environmental concern for agricultural production using pulp and paper mill effluent for irrigation purposes. At the study site, the treated effluent is delivered from the mill into a winter storage dam. This storage dam is also meant to provide an...
Article
Full-text available
This paper provides results of an application of a holistic systematic approach of water accounting using remote sensing and GIS coupled with ground water modeling to evaluate water saving options by tracking non-beneficial evaporation in the Liuyuankou Irrigation System (LIS) of China. Groundwater rise is a major issue in the LIS, where groundwate...
Conference Paper
Full-text available
EXTENDED ABSTRACT Large storages and regulation of river flows for the purposes of irrigation, flood mitigation or power generation adversely affect the natural seasonal patterns of the river flows. There is a trade-off between level of human interventions in the river system for human benefits and the degree of maintaining the natural seasonality...
Book
Full-text available
A new recycled water irrigation scheme has recently been constructed in southeast Tasmania to supply water to farmers in the Coal Valley and to reduce discharge of treated sewage water to the Derwent Estuary. The scheme will deliver up to 2700ML of recycled water per annum. The Lower Coal valley has long been known to contain salinity. Recent EM31...
Book
Full-text available
This booklet on farm water savings in the Murrumbidgee catchment is derived from two reports— Hydrologic economic ranking of water saving options: on-farm savings of irrigation water and Hydrologic economic ranking of water saving options: off-farm savings of irrigation water. Research for these reports was conducted by Shahbaz Khan, Saud Akbar, Ta...
Book
Full-text available
This report describes the development of a surface-groundwater interaction model for the Murrumbidgee Irrigation Area. The US geological survey model MODFLOW coupled with the MT3D solute transport simulator under a PMWIN environment was used as the modeling framework. The spatial domain represented in the model consists of four layers each of 106 r...
Book
Full-text available
Coleambally Irrigation Corporative Limited (CICL) is implementing Land and Water Management Options such as Net Recharge Management (NRM) to help improve water use efficiency and keep salinity affected areas (with root soil salinity levels > 2dS/m) less than 15 percent of the landscape. The net recharge management implementation process builds on s...
Conference Paper
Full-text available
EXTENDED ABSTRACT Channel seepage has been identified as a significant loss from the irrigation channels from both water quantity and environmental degradation perspectives. Recent studies have indicated that estimates of channel seepage are an essential component in the management of earthen channel systems. Seepage losses from channel or drains m...
Article
Full-text available
EXTENDED ABSTRACT Drainage schemes for agro-ecological salinity management have been set to lower the shallow groundwater to help increase production and reduce the ecological risk. Once the groundwater levels are lowered to desired agro-ecological thresholds then drainage scheme's operation needs to be optimised according to the groundwater dynami...

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