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Bharat R Sharma

An assessment of crop water productivity in the Indus and Ganges river basins: Current status and scope for improvement – A research report by IWMI

IWMI ReportThis paper by the International Water Management Institute (IWMI) presents a new approach for analysis of water productivity (WP) of rice and wheat in the Indus and the Ganges river basins, South Asia, based on the integration of readily available remote sensing, national crop productivity and land use statistics and weather data. Understanding crop water productivity over large river basins has significant implications for sustainable basin development planning.  

Three major steps are involved in producing crop water productivity maps: (1) crop dominance map, (2) yield estimates, and (3) water consumption (evapotranspiration (ET)) estimates. The crop dominance map is synthesized from the relevant, and publically available, land use/land cover (LULC) maps with ground truth data. National statistics on crop area and yields are collected, and the yields are interpolated to grid level (500 meters (m) x 500 m) using Moderate Resolution Imaging Spectroradiometer (MODIS) Normalized Difference Vegetation Index (NDVI) maps.

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The effects of agricultural water and landholdings to rural livelihoods in Indo-Gangetic basin – Research analysis by IWMI and ICAR with an emphasis on Bihar

IWMI PaperThe current research analysis by International Water Management Institute (IWMI) in cooperation with ICAR Research Complex for Eastern Region is focused on the identification of agricultural water use and land scaling effects to rural livelihoods in the Indo-Gangetic basin (IGB) with an emphasis on Bihar. In particular, water use and landholding factors are widely acknowledged as major determinants of agricultural development and hence rural wealth in IGB basin and Bihar. High attention is mainly given to irrigation policy while land is often apprehended through soil productivity aspects.

However, little importance is given to land scaling and water consumption effects in respect to agricultural development and rural livelihoods. Further, the valuation of agricultural water is another issue that has not been sufficiently elaborated. Another major aspect which is still poorly investigated pertains to farmers' perceptions towards the significance of institutional and environmental related parameters of agricultural water. Last but not least, little attention has been given to crucial socio-demographic indicators which could act as potential drivers to farmers' perceptions towards environmental related parameters of agricultural water.

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Location

Darbhanga, BR, India
Latitude: 26.170000, Longitude: 85.900000

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Groundwater externalities of surface irrigation transfers under national river linking project: Polavaram – Vijayawada link

Polavaram projectThis document published by IWMI and CGIAR describes the details of the Polavaram project, which has been planned by the state of Andhra Pradesh as a multi-purpose project:Read More

  • to provide irrigation benefits to the upland areas
  • to provide a water supply to the industries in Visakhapatnam city, including the Steel Plant, for the generation of hydropower
  • for the development of navigation and recreation facilities.

The project envisages the construction of an earth-cum-rock filled dam that is 1,600 m long across the Godavari River at Polavaram, and about 42 km upstream of the Godavari Barrage at Dowlaiswaram.

Location

Polavaram, AP, India
Latitude: 16.983113, Longitude: 80.914672

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Converting rain into grain: Opportunities for realizing the potential of rainfed agriculture in India - A working paper by the Challenge Programme on Water and Food

The study was done under the "Strategic Analyses of India’s National River Linking Project", of the Challenge Programme on Water and Food (CPWF) to estimate the available runoff in the potential regions to mitigate the terminal drought in the dominant rainfed districts of India. Read More

Location

Dindori, MP, India
Latitude: 22.942639, Longitude: 81.075179

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Assessing and improving water productivity in conservation agriculture systems in the Indus-Gangetic basin – A working paper by Challenge Program on Water and Food

The paper by Challenge Programme on Water and Food (CPWF) attempts to assess and improve water productivity in conservation agriculture systems in the Indus-Gangetic basin, in which during the past 40 years an intricate mosaic of interactions between man & nature, poverty & prosperity and problems & possibilities has emerged. Rapid expansion in agricultural water use is a common theme across these interactions and access to water is central to the livelihoods of the rural poor.Read More

Location

Kurukshetra, HR, India
Latitude: 29.972222, Longitude: 76.830000

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Impact of climate change on water resources and glacier melt and potential adaptations for Indian agriculture - A working paper by Challenge Program on Water and Food

The paper by the Challenge Program on Water and Food deals with the impact of climate change on water resources & glacier melt and potential adaptations in Indian agriculture. Global climatic changes will have major effects on precipitation, water availability, glacier/ice melt, and sea level rise. Climate-induced changes in hydrological conditions will affect the magnitude, frequency, and damage costs of future extreme events.Read More

Location

Farakka, WB, India
Latitude: 24.797155, Longitude: 87.914495

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Indo-Gangetic river basins: Summary situation analysis by Challenge Program on Water and Food

The paper by the Challenge Programme on Water and Food (CPWF) - Basin Focal Project provides a brief situation analysis related to water, agriculture & poverty, water resources, water productivity, institutional aspects and opportunities & risks related to the development of the Indo-Gangetic basin (IGB). Management of IGB water resources presents some formidable challenges and, therefore, steps must be taken towards integrated management of the IGB’s water and land resources in order to ensure the future sustainability of all production and ecosystems in the basin. Read More

Location

Allahabad, UP, India
Latitude: 25.442540, Longitude: 81.829866

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Arghyam

6.22-2011.07.01-06