Climate-smart tank irrigation: A multi-year analysis of improved conjunctive water use under high rainfall variability

Siderius, Christian; Boonstra, H.; Munaswamy, V.; Ramana, C. Venkata; Kabat, P.; Ierland, E.C. van; Hellegers, Petra

doi:10.1016/j.agwat.2014.09.009

Cited by 25 publications

(17 citation statements)

References 16 publications

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“…This management can also be adapted to the hydrological situation of each year. The reservoirs built mainly to favour groundwater recharge can have all types of connections with the river; however, it appears that most of them are built directly in the river stream, thus collecting all the upstream flows (Shinogi et al, 1998;Siderius et al, 2015). Depending on the respective inflow and abstraction dynamics, cumulative abstraction may exceed the reservoir storage capacity, as illustrated in Figure 5 for example, for which the abstractions from the reservoirs reach 105 to 120% of the maximum storage capacity.…”

Section: Connection To the Streammentioning

confidence: 99%

The cumulative impacts of small reservoirs on hydrology: A review

Habets

Molénat

Carluer

et al. 2018

Science of The Total Environment

115

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The number of small reservoirs has increased due to their reduced cost, the availability of many favourable locations, and their easy access due to proximity. The cumulative impacts of such small reservoirs are not easy to estimate, even when solely considering hydrology, which is partially due to the difficulty in collecting data on the functioning of such reservoirs. However, there is evidence indicating that the cumulative impacts of such reservoirs are significant. The aim of this article is to present a review of the studies that address the cumulative impacts of small reservoirs on hydrology, focusing on the methodology and on the way in which these impacts are assessed. Most of the studies addressing the hydrological cumulative impacts focused on the annual stream discharge, with decreases ranging from 0.2% to 36% with a mean value of 13.4% ± 8% over approximately 30 references. However, it is shown that similar densities of small reservoirs can lead to different impacts on stream discharge in different regions. This result is probably due to the hydro-climatic conditions and makes defining simple indicators to provide a first guess of the cumulative impacts difficult. The impacts also vary in time, with a more intense reduction in the river discharge during the dry years than during the wet years. This finding is certainly an important point to take into consideration in the context of climate change. Two methods are mostly used to estimate cumulative impacts: i) exclusively data-based methods and ii) models. The assumptions, interests and shortcomings of these methods are presented. Scientific tracks are proposed to address the four main shortcomings, namely the estimation of the associated uncertainties, the lack of knowledge on reservoir characteristics and water abstraction and the accuracy of the impact indicators.

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Section: Connection To the Streammentioning

confidence: 99%

The cumulative impacts of small reservoirs on hydrology: A review

Habets

Molénat

Carluer

et al. 2018

Science of The Total Environment

115

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“…Upscaling irrigation-based CSA options will likely result in simultaneously adaptation and productivity benefits. However, there are currently limited empirical studies on the irrigation system to support crop productivity [73,123,124]. There is also limited information to policy decision-making on adaptation and food security in this challenging climate context.…”

Section: Knowledge Gapsmentioning

confidence: 99%

Institutional Perspectives of Climate-Smart Agriculture: A Systematic Literature Review

et al. 2018

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Climate-smart agriculture (CSA) is increasingly seen as a promising approach to feed the growing world population under climate change. The review explored how institutional perspectives are reflected in the CSA literature. In total, 137 publications were analyzed using institutional analysis framework, of which 55.5% make specific reference to institutional dimensions. While the CSA concept encompasses three pillars (productivity, adaptation, and mitigation), the literature has hardly addressed them in an integrated way. The development status of study sites also seems to influence which pillars are promoted. Mitigation was predominantly addressed in high-income countries, while productivity and adaptation were priorities for middle and low-income countries. Interest in institutional aspects has been gradual in the CSA literature. It has largely focused on knowledge infrastructure, market structure, and hard institutional aspects. There has been less attention to understand whether investments in physical infrastructure and actors' interaction, or how historical, political, and social context may influence the uptake of CSA options. Rethinking the approach to promoting CSA technologies by integrating technology packages and institutional enabling factors can provide potential opportunities for effective scaling of CSA options.

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“…Siderius et al [95] demonstrate the economic viability of conjunctively managing groundwater and rainfall in a tank irrigation system in Andhra Pradesh, India. The higher yields obtained of rice, groundnuts, and sugarcane generate sufficient revenue to offset the cost of rehabilitating the tank system at the start of the six-year experiment, while providing substantial net income per hectare of irrigated land.…”

Section: Protecting Water Resourcesmentioning

confidence: 99%

Achieving Water and Food Security in 2050: Outlook, Policies, and Investments

Wichelns

2015

Agriculture

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Food production in 2050 will be sufficient, globally, but many of the poor will remain food insecure. The primary cause of food insecurity will continue to be poverty, rather than inadequate food production. Thus, policies and investments that increase the incomes of the poor will remain the best ways to extend food security to all. Investments that promote growth in sustainable agriculture and provide non-farm employment opportunities in rural areas of lower income countries will be most helpful. There will be sufficient water, globally, to achieve food production goals and sustain rural and urban livelihoods, if we allocate and manage the resource wisely. Yet, water shortages will constrain agricultural production and limit incomes and livelihood opportunities in many areas. Policies and investments are needed to extend and ensure access to water for household use and agricultural production. Challenges requiring the attention of policy makers and investors include increasing urbanization and increasing demands for land and water resources. Policy makers must ensure that farmers retain access to the water they need for producing food and sustaining livelihoods, and they must create greater opportunities for women in agriculture. They must also motivate investments in new technologies that will enhance crop and livestock production, particularly for smallholders, and encourage the private sector to invest in activities that create employment opportunities in rural areas.

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Climate-smart tank irrigation: A multi-year analysis of improved conjunctive water use under high rainfall variability

Cited by 25 publications

References 16 publications

The cumulative impacts of small reservoirs on hydrology: A review

The cumulative impacts of small reservoirs on hydrology: A review

Institutional Perspectives of Climate-Smart Agriculture: A Systematic Literature Review

Achieving Water and Food Security in 2050: Outlook, Policies, and Investments

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