S. A. Prathapar

Asian Development Bank

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Basant Maheshwari

Western Sydney University

Natarajan Rajmohan

King Abdulaziz University

Pennan Chinnasamy

Indian Institute of Technology Bombay

Asad Sarwar Qureshi

International Center for Biosaline Agriculture

Mushtaque Ahmed

Sultan Qaboos University

Tushaar Shah

International Water Management Institute

P. Slavich

Southern Cross University

Muhammad Akram Kahlown

Pakistan Council of Research in Water Resources

Pradeep Kumar Singh

GLA University

Muhammad Zohaib Aslam

University of Shanghai for Science and Technology

Cooperative Institutions

International Water Management Institute

Maharana Pratap University of Agriculture and Technology

Sultan Qaboos University

CSIRO Land and Water

Commonwealth Scientific and Industrial Research Organisation

Western Sydney University

Griffith University

International Management Institute

Wageningen University & Research

Krishi Vigyan Kendra, Ghatkhed Amravati

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Extracting relatively-fresh groundwater from aquifers underlain by salty groundwater

Agricultural Water Management (2002)

Muhammad Nadeem Asghar S. A. Prathapar M. S. Shafique

Groundwater discharge

Water well

Surficial aquifer

10.1016/s0378-3774(01)00130-5

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Citations (55)

Optimising pumping rates to control piezometric levels: A case study

Agricultural Water Management (1994)

Jehangir F. Punthakey S. A. Prathapar David Hoey

MODFLOW

Groundwater model

Waterlogging (archaeology)

Tube well

10.1016/0378-3774(94)90027-2

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Citations (3)

The impact of seasonal waterlogging on the depth-wise distribution of major and trace metals in the soils of the eastern Ganges basin

CATENA (2020)

Natarajan Rajmohan R. Nagarajan M. Jayaprakash S. A. Prathapar

Silt

Waterlogging (archaeology)

Enrichment factor

Soil test

10.1016/j.catena.2020.104510

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Citations (18)

Understanding Groundwater Storage Changes and Recharge in Rajasthan, India through Remote Sensing

Water (2015)

Pennan Chinnasamy Basant Maheshwari S. A. Prathapar

Groundwater management practices need to take hydrogeology, the agro-climate and demand for groundwater into account. Since agroclimatic zones have already been demarcated by the Government of India, it would aid policy makers to understand the status of groundwater recharge and discharge in each agroclimatic zone. However, developing effective policies to manage groundwater at agroclimatic zone and state levels is constrained due to a paucity of temporal data and information. With the launch of the Gravity Recovery and Climate Experiment (GRACE) mission in 2002, it is now possible to obtain frequent data at broad spatial scales and use it to examine past trends in rain induced recharge and groundwater use. In this study, the GRACE data were used to estimate changes to monthly total water storage (TWS) and groundwater storage in different agroclimatic zones of Rajasthan, India. Furthermore, the long-term annual and seasonal groundwater storage trends in the state were estimated using the GRACE data and the trends were compared with those in rainfall data. The methodology based on GRACE data was found to be useful in detecting large scale trends in groundwater storage changes covering different agroclimatic zones. The analysis of data shows that groundwater storage trends depend on rainfall in previous years and, therefore, on the antecedent moisture conditions. Overall, the study indicates that if suitable groundwater recharge methods and sites are identified for the state, there is potential to achieve more groundwater recharge than what is currently occurring and, thus, enhancing the availability of water for irrigated agriculture.

Water storage

Groundwater discharge

10.3390/w7105547

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Citations (67)

Enabling policy environment for water, food and energy security

Irrigation and Drainage (2021)

Jelle Beekma Jeremy Bird Adey Nigatu Mersha Stijn Reinhard S. A. Prathapar

Abstract The complexity of water, food and energy security is analysed from the perspectives of (i) water and food and (ii) water and energy and their interconnectivity and focuses ultimately on water as a primary input into processes, the entry point for participants of the Third World Irrigation Forum. The paper provides an overview of trends in water, food and energy security, highlights the interconnectivity between the various elements and introduces the water–food–energy nexus as a tool for improving productivity and sector policies, avoiding unintended consequences on other sectors. Invariably, there will be trade‐offs and the challenge is to find combinations of measures that have a net positive outcome. In order to quantify security in the three elements and the trade‐offs between them, emerging modelling approaches for the nexus are discussed. Sub‐theme 3 of the forum focuses on productivity and technology interventions 1 and sub‐theme 2 on stakeholder interaction. The combination of modelling, technology innovations and stakeholder participation in a water–food–energy nexus approach leads to better understanding of linkages and more robust policies and is used to derive recommendations for an enabling policy environment.

Interconnectivity

Water security

Energy Security

Unintended consequences

10.1002/ird.2560

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Citations (19)

Vertical distribution of heavy metals in soil profile in a seasonally waterlogging agriculture field in Eastern Ganges Basin

Environmental Monitoring and Assessment (2014)

Natarajan Rajmohan S. A. Prathapar M. Jayaprakash R. Nagarajan

Silt

Soil texture

Enrichment factor

Soil test

Parent material

10.1007/s10661-014-3790-x

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Citations (79)

The Role of Transdisciplinary Approach and Community Participation in Village Scale Groundwater Management: Insights from Gujarat and Rajasthan, India

Water (2014)

Basant Maheshwari Maria Estela Varua John Ward Roger Packham Pennan Chinnasamy

Sustainable use of groundwater is becoming critical in India and requires effective participation from local communities along with technical, social, economic, policy and political inputs. Access to groundwater for farming communities is also an emotional and complex issue as their livelihood and survival depends on it. In this article, we report on transdisciplinary approaches to understanding the issues, challenges and options for improving sustainability of groundwater use in States of Gujarat and Rajasthan, India. In this project, called Managed Aquifer Recharge through Village level Intervention (MARVI), the research is focused on developing a suitable participatory approach and methodology with associated tools that will assist in improving supply and demand management of groundwater. The study was conducted in the Meghraj watershed in Aravalli district, Gujarat, and the Dharta watershed in Udaipur district, Rajasthan, India. The study involved the collection of hydrologic, agronomic and socio-economic data and engagement of local village and school communities through their role in groundwater monitoring, field trials, photovoice activities and education campaigns. The study revealed that availability of relevant and reliable data related to the various aspects of groundwater and developing trust and support between local communities, NGOs and government agencies are the key to moving towards a dialogue to decide on what to do to achieve sustainable use of groundwater. The analysis of long-term water table data indicated considerable fluctuation in groundwater levels from year to year or a net lowering of the water table, but the levels tend to recover during wet years. This provides hope that by improving management of recharge structures and groundwater pumping, we can assist in stabilizing the local water table. Our interventions through Bhujal Jankaars (BJs), (a Hindi word meaning “groundwater informed” volunteers), schools, photovoice workshops and newsletters have resulted in dialogue within the communities about the seriousness of the groundwater issue and ways to explore options for situation improvement. The BJs are now trained to understand how local recharge and discharge patterns are influenced by local rainfall patterns and pumping patterns and they are now becoming local champions of groundwater and an important link between farmers and project team. This study has further strengthened the belief that traditional research approaches to improve the groundwater situation are unlikely to be suitable for complex groundwater issues in the study areas. The experience from the study indicates that a transdisciplinary approach is likely to be more effective in enabling farmers, other village community members and NGOs to work together with researchers and government agencies to understand the groundwater situation and design interventions that are holistic and have wider ownership. Also, such an approach is expected to deliver longer-term sustainability of groundwater at a regional level.

Watershed Management

10.3390/w6113386

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Citations (85)

Models for estimating capillary rise in a heavy clay soil with a saline shallow water table

Irrigation Science (1992)

S. A. Prathapar C. W. Robbins Wayne S. Meyer N. S. Jayawardane

Subsoil

Saline water

10.1007/bf00190238

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Citations (45)

Impact of sedimentation on groundwater recharge at Sahalanowt Dam, Salalah, Oman

Water International (2014)

S. A. Prathapar Abdulla Ali Bawain

Recharge dams in Oman detain floods to recharge groundwater. The impact of sedimentation on recharge at Wadi Sahalanowt Recharge Dam, in Salalah, Oman, was evaluated using field data and numerical modelling. Analysis of the thickness of sediments after flood events shows that maximum depositions were at the same locations after each event, coinciding with the lowest positions in the wadi. Numerical modelling suggests that the current practice of periodic removal of sediments will restore the storage capacity of the reservoir, but that ploughing or raking of the underlying native sedimentary rocks could be required to significantly improve infiltration rates.

Sedimentation

10.1080/02508060.2014.895889

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Citations (20)

Mechanically reclaiming abandoned saline soils in Pakistan

Irrigation and Drainage (2005)

S. A. Prathapar Muhammad Zohaib Aslam Muhammad Akram Kahlown Zubair Iqbal Asad Sarwar Qureshi

10.1002/ird.206

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Citations (0)