Download or read book Spatial distribution of reference and potential evapotranspiration across the Indus Basin Irrigation Systems written by M. Kaleem Ullah and published by IWMI. This book was released on 2001 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report computes different components of potential crop water demand at the canal command level in Indus Basin. Major contribution is update of water demand based on several years of climate data, which improves the estimation of reference evapotranspiration for developing refined crop coefficients based on the latest cropping patterns. The water demands of major crop and fully developed standard unit for each canal command is presented for direct comparisons and adjustments, if required. The report is part of Indus Basin performance study, which aims to identify the scope for integrated land and water management by evaluating current practices to propose sustainable alternatives.
Download or read book Handbook of Irrigation Hydrology and Management written by Saeid Eslamian and published by CRC Press. This book was released on 2023-05-31 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever-increasing population growth has caused a proportional increased demand for water, and existing water sources are depleting day by day. Moreover, with the impact of climate change, the rates of rainfall in many regions have experienced a higher degree of variability. In many cities, government utilities have been struggling to maintain sufficient water for the residents and other users. The Handbook of Irrigation Hydrology and Management examines and analyzes irrigated ecosystems in which water storage, applications, or drainage volumes are artificially controlled in the landscape and the spatial domain of processes varies from micrometers to tens of kilometers, while the temporal domain spans from seconds to centuries. The continuum science of irrigation hydrology includes the surface, subsurface (unsaturated and groundwater systems), atmospheric, and plant subsystems. Further, the book includes coverage of environmental and economic impacts, water quality issues, water harvesting, satellite measurements for irrigation, and more. Features: Offers water-saving strategies to increase the judicious use of scarce water resources Presents strategies to maximize agricultural yield per unit of water used for different regions Compares irrigation methods to offset changing weather patterns and impacts of climate change
Download or read book Indus River Basin written by Sadiq I. Khan and published by Elsevier. This book was released on 2019-01-12 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indus River Basin: Water Security and Sustainability provides a comprehensive treatment of water-related issues within the Indus River basin. Each chapter is written by an expert in the field, hence this book serves as a single, holistic source covering the whole region, not just a single country. Many of the challenges faced by this region are trans-boundary issues, especially within the context of climate change and water scarcity. Topics covered include extreme engineering and water resource management (one of the largest irrigation systems in dry to semi-desert conditions), social sciences (population dynamics linked to water resources) and political sciences. As such, this book is relevant and important to all researchers interested in these issues. Includes detailed chapters provided by specialists in each different field as compiled by well experienced editors Presents work from related fields across the Indus basin and makes them easily accessible on one single place Shows the Indus River as a type case and shares issues relevant to other locations across the world
Download or read book Water Saving Technologies written by Mobin-ud-Din Ahmad and published by IWMI. This book was released on 2007 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study carried out in Punjab, Pakistan.
Download or read book Water for Food Security written by Claudia Ringler and published by Routledge. This book was released on 2016-03-22 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pakistan’s water management is at a critical watershed. The world’s seventh-most populous country faces serious challenges that will require improvements in both the "hardware" and "software" of agricultural water management. Water shortages are growing rapidly as a result of growing demand across all water-using sectors. Rapid population growth, from 175 million people in 2010 to an estimated 236 million by 2030 and 280 million by 2050, and international food-price spikes create pressure to increase agricultural production of staples; but demand for cash crops is also growing rapidly, including for cotton, fruit trees and tobacco, to raise rural incomes and generate rural employment to absorb the relatively young, rapidly growing rural population. Water management is also increasingly affected by climate change – including an increased number of flood and drought events – and growing energy shortages, which affect how water is being sourced and used. Last but not least, Pakistan’s political situation is fragile, which has reduced incentives to invest in enhanced agricultural water (and other) technologies. How Pakistan addresses these challenges will be decisive for its population’s future water and food security, for economic growth, and for environmental sustainability. It will also affect water and food outcomes globally, due to the interconnectedness of global food trade. This book was published as a special issue of Water International.
Download or read book Emerging Technologies for Water Supply Conservation and Management written by Etikala Balaji and published by Springer Nature. This book was released on 2023-07-25 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the role of emerging technologies such as remote sensing and GIS and artificial intelligence/machine learning in water supply, conservation and management for sustainable development. These are low-cost new technologies that address current challenges dealing with large data sets, such as identifying spatial and temporal variations in water quality parameters and contaminants, groundwater potential zones and water supply and management issues. This book is helpful to show the paths of reducing the burden of time and cost and is the alternative options for the conventional practices in water supply, conservation and management. Further, the outcomings of this book are helpful for policy makers, researchers and readers.
Download or read book Sustaining crop water productivity in rice wheat systems of South Asia A case study from the Punjab Pakistan written by Waqar Ahmed Jehangir and published by IWMI. This book was released on 2007-04-23 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: This working paper presents the results of the Pakistan Component of the Rice-Wheat Consortium Project on ‘Sustaining the rice-wheat production systems of Asia’. Rice and wheat crops are main nsources of human food and substantially contribute to feeding livestock. The advent of the green revolution in the 1960s resulted in a tremendous increase in the production of these two cereal crops and the rice-wheat cropping system emerged as a very important source of food supply in South Asia. Recent symptoms of stagnant growth rates in productivity and the degradation of the resource base pose serious challenges to future food security and natural resources management in the region. The growing scarcity of water in the region
Download or read book Advances in Groundwater Governance written by Karen G. Villholth and published by CRC Press. This book was released on 2017-12-14 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses groundwater governance, a subject internationally recognized as crucial and topical for enhancing and safeguarding the benefits of groundwater and groundwater-dependent ecosystems to humanity, while ensuring water and food security under global change. The multiple and complex dimensions of groundwater governance are captured in 28 chapters, written by a team of leading experts from different parts of the world and with a variety of relevant professional backgrounds. The book aims to describe the state-of-the-art and latest developments regarding each of the themes addressed, paying attention to the wide variation of conditions observed around the globe. The book consists of four parts. The first part sets the stage by defining groundwater governance, exploring its emergence and evolution, framing it through a socio-ecological lens and describing groundwater policy and planning approaches. The second part discusses selected key aspects of groundwater governance. The third part zooms in on the increasingly important linkages between groundwater and other resources or sectors, and between local groundwater systems and phenomena or actions at the international or even global level. The fourth part, finally, presents a number of interesting case studies that illustrate contemporary practice in groundwater governance. In one volume, this highly accessible text not only familiarizes water professionals, decision-makers and local stakeholders with groundwater governance, but also provides them with ideas and inspiration for improving groundwater governance in their own environment.
Download or read book Adoption and Impacts of Zero Tillage as a Resource Conserving Technology in the Irrigated Plains of South Asia written by and published by CIMMYT. This book was released on 2007 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent stagnation of productivity growth in the irrigated areas of the Indo-Gangetic Plains of South Asia has led to a quest for resource conserving technologies that can save water, reduce production costs and improve production. The present synthesis of two detailed country studies confirmed widespread adoption of zero tillage (ZT) wheat in the rice-wheat systems of India's Haryana State (34.5% of surveyed households) and Pakistan's Punjab province (19%). The combination of a significant "yield effect" and "cost-saving effect" makes adoption worthwhile and is the main driver behind the rapid spread and widespread acceptance of ZT in Haryana, India. In Punjab, Pakistan, adoption is driven by the significant ZT-induced cost savings for wheat cultivation. Thus, the prime driver for ZT adoption is not water savings or natural resource conservation but monetary gain in both sites. Water savings are only a potential added benefit. ZT adoption for wheat has accelerated from insignificant levels from 2000 onwards in both sites. Geographic penetration of ZT is far from uniform, suggesting the potential for further diffusion, particularly in Haryana, India. Diffusion seems to have stagnated in the Punjab study area, and further follow-up studies are needed to confirm this. The study also revealed significant dis-adoption of ZT in the survey year: Punjab, Pakistan 14 percent and Haryana, India 10 percent. Better understanding the rationale for dis-adoption merits further scrutiny. Our findings suggest that there is no clear single overarching constraint but that a combination of factors is at play, including technology performance, technology access, seasonal constraints and, particularly in the case of Punjab, Pakistan, the institutional ZT controversy. In terms of technology performance, the relative ZT yield was particularly influential: dis-adopters of ZT reporting low ZT yields as a major contributor to farmer disillusionment in Punjab, Pakistan and the lack of a significant yield effect in Haryana, India. In neither site did the ZT-induced time savings in land preparation translate into timelier establishment, contributing to the general lack of a yield increase. Knowledge blockages, resource constraints and ZT drill cost and availability all contributed to nonadoption. This suggests that there is potential to further enhance access to this technology and thereby its penetration. The study highlights that in both Haryana, India and Punjab, Pakistan ZT has been primarily adopted by the larger and more productive farmers. The structural differences between the adopters and non-adopters/dis-adopters in terms of resource base, crop management and performance thereby easily confound the assessment of ZT impact across adoption categories. This calls for the comparison of the ZT plots and conventional tillage plots on adopter farms. ZT-induced effects primarily apply to the establishment and production costs of the wheat crop. Both the Haryana, India and Punjab, Pakistan studies confirmed significant ZT-induced resource-saving effects in farmers' fields in terms of diesel and tractor time for wheat cultivation. Water savings are, however, less pronounced than expected from on-farm trial data. It was only in Haryana, India that there were significant ZT-induced water savings in addition to significant yield enhancement. The higher yield and water savings in Haryana, India result in significantly Abstract vi higher water productivity indicators for ZT wheat. In both sites, there are limited implications for the overall wheat crop management, the subsequent rice crop and the rice-wheat system as a whole. The ZT-induced yield enhancement and cost savings provide a much needed boost to the returns to, and competitiveness of, wheat cultivation in Haryana, India. In Punjab, Pakistan, ZT is primarily a cost-saving technology. Based on these findings the study provides a number of recommendations for research and development in South Asia's rice-wheat systems.
Download or read book An assessment of crop water productivity in the Indus and Ganges River Basins current status and scope for improvement written by Cai, Xueliang and published by IWMI. This book was released on 2010 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Indus and Ganges River Basin, being the most populous in the world, is under extreme pressure to sustain food security. Production resources including water are being exploited to various levels from underdevelopment to heavy overexploitation. This report provides a bird’s eye view of the basin and focuses on the nexus between agricultural production and water consumption, making it possible to pinpoint the areas with high/low water productivity and identify the factors behind this, which helps to promote informed decision making in light of environmental sustainability.
Download or read book Proceedings of the IIIrd International Date Palm Conference written by Abdelouahhab Zaid and published by . This book was released on 2007 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Indus Basin of Pakistan written by Winston Yu and published by World Bank Publications. This book was released on 2013-05-01 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study assesses the impacts of climate risks and development alternatives on water and agriculture in the Indus basin of Pakistan. It analyzes inter-relationships among the climate, water, and agriculture sectors and provides a systems modeling framework for these purposes.
Download or read book Assessment of water allocations using remote sensing and GIS modeling for Indus Basin Pakistan written by Cheema, Muhammad Jehanzeb Masud and published by Intl Food Policy Res Inst. This book was released on 2016-02-19 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water allocations for canal commands are not uniform throughout Pakistan. They vary from 2.5 to 15 cusec (ft3/sec) per 1,000 acres (i.e. 0.18 – 1.1 litre/sec/hectare) for different canal commands. This variability in water allowance (WA) has resulted in low water productivity (kg of yield per m3 of water use), an indicator used to assess efficient water use, especially in command areas having higher water allocations. In this study, satellite imagery was used to estimate crop water use and corresponding water productivity for each canal command area of the Indus Basin Irriga-tion System. Three years were selected for the study and two representative canal commands (Lower Chenab and Muzaffargarh Canal) were selected for detailed analysis and ground truthing. Spatially distributed maps of land use, crop water use, groundwater use and quality, soil and water salinity, and crop yields at a pixel resolution of 250 m (6.25 ha) were prepared and then verified by field surveys. GIS maps of canal water availability/supply were also prepared to account for the volume of water supplied through irrigation. This spatial database was used to evaluate and create maps of water productivity in the different canal commands.
Download or read book Agro Ecological Zones in Punjab Pakistan written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-12-19 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: A team of scientists and researchers from the University of Agriculture Faisalabad and University of Arid Agriculture Rawalpindi, in collaboration with FAO and Government of Punjab (Agriculture Department) worked together to delineate the Agro-Ecological Zoning (AEZ) in Punjab. AEZ refers to the division of Punjab region into land resource mapping units, having a unique combination of landform, soil and climatic characteristics, and/or land cover. Based on the most up to date collected information on natural resources, climate and agricultural markets, AEZ reveals an enormous potential for crop diversification and productivity. And it is the need of the hour in a country where population is rapidly growing and where climate changes (increases in temperature, changes in rainfall pattern, extreme weather events) evidence the vulnerability of the current agricultural systems. From a side AEZ will help to make smallholder farming a profitable business and overall enhance agriculture efficiency. On the other side, policymakers will be able to use data of AEZ and associated information on land characteristics (soil quality, topography, agricultural land use, yeld etc) to formulate optimal policies for sustainable agricultural production.
Download or read book Strategies for the Management of Conjunctive Use of Surface Water and Groundwater Resources in Semi arid Areas written by Asad Sarwar Qureshi and published by IWMI. This book was released on 2004 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to inadequate rainfall, groundwater has acquired a vital role in the development of Pakistan's agricultural economy. However, a lack of awareness concerning the use of groundwater, either by itself or combined with canal water, has added large amounts of salt to the soil. As a result, large tracts of irrigated lands are already salinized, while many others are under threat. This report presents the results of a modeling study carried out to evaluate the long-term effects of a different quality of irrigation water on root zone salinity. The simulations were performed for the Rechna Doab (sub basin of the Indus Basin) in Pakistan, by using 15 years of actual rainfall and climatic data.
Download or read book Irrigation and Drainage Engineering written by Peter Waller and published by Springer. This book was released on 2015-11-18 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook focuses specifically on the combined topics of irrigation and drainage engineering. It emphasizes both basic concepts and practical applications of the latest technologies available. The design of irrigation, pumping, and drainage systems using Excel and Visual Basic for Applications programs are explained for both graduate and undergraduate students and practicing engineers. The book emphasizes environmental protection, economics, and engineering design processes. It includes detailed chapters on irrigation economics, soils, reference evapotranspiration, crop evapotranspiration, pipe flow, pumps, open-channel flow, groundwater, center pivots, turf and landscape, drip, orchards, wheel lines, hand lines, surfaces, greenhouse hydroponics, soil water movement, drainage systems design, drainage and wetlands contaminant fate and transport. It contains summaries, homework problems, and color photos. The book draws from the fields of fluid mechanics, soil physics, hydrology, soil chemistry, economics, and plant sciences to present a broad interdisciplinary view of the fundamental concepts in irrigation and drainage systems design.
Download or read book Evaporation Evapotranspiration and Irrigation Water Requirements written by American Society of Civil Engineers. Task Committee on Revision of Manual 70 and published by ASCE Press. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: MOP 70 is a comprehensive reference to estimating the water quantities needed for irrigation of crops projects based upon the physics of evaporation and evapotranspiration (ET).
