Rainfall Variability and Rice Sustainability: An Evaluation Study of Two Distinct Rice-Growing Ecosystems

Barati, Masoud K.; Manivasagam, V. S.; Nikoo, Mohammad Reza; Saravanane, Pasoubady; Narayanan, Alagappan; Manalil, Sudheesh

doi:10.3390/land11081242

Cited by 6 publications

(2 citation statements)

References 34 publications

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“…Thus, the changing climate may pose a significant threat to the food security of the State of Tamil Nadu. To ensure rice sustainability and food security in the face of climate change, it is important to adopt practices that increase resilience in rice-farming systems, such as the use of flood-tolerant varieties, precision agriculture techniques, and sustainable water management [67].…”

Section: Discussionmentioning

confidence: 99%

How Far Will Climate Change Affect Future Food Security? An Inquiry into the Irrigated Rice System of Peninsular India

et al. 2023

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Climate change poses a great challenge to food security, particularly in developing nations where important food crops such as rice and wheat have been grown in large quantities. The study investigates food security using an integrated approach, which comprises forecasting future rice production using the AquaCrop model and demand for rice using an economic model. The proposed approach was evaluated in the Cauvery delta zone in the eastern part of Tamil Nadu, which is a major rice-growing hotspot in peninsular India. Our results showed that the future rice productivity of the Cauvery delta region would be reduced by 35% between 2021 and 2040 and by 16% between 2041 and 2050. However, the supply–demand gap addressing food security in the Cauvery delta zone is positive for the future, as evidenced by the availability of surplus rice of 0.39 million tonnes for the period 2021–2030 and 0.23 million tonnes and 0.35 million tonnes for the periods 2031–2040 and 2041–2050, respectively. Nevertheless, as the neighboring regions are relying on rice production from the Cauvery delta, this surplus rice production is potentially not sufficient to meet the demand of the state as a whole, which suggests climate change may pose a severe threat to the food security of the Tamil Nadu State. These findings emphasize the necessity of performing regional-level food security assessments with a focus on developing location-specific policy options to mitigate the adverse effects of climate-induced anomalies on food security.

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Section: Discussionmentioning

confidence: 99%

How Far Will Climate Change Affect Future Food Security? An Inquiry into the Irrigated Rice System of Peninsular India

et al. 2023

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“…Gujarat, Andhra Pradesh, Maharashtra, Karnataka, and Telangana have at least 85% of their total agricultural land under drip irrigation (Figure 2). Haryana and Rajasthan states have majorly adopted sprinkler irrigation [25,27,33].…”

Section: India's Perspectivementioning

confidence: 99%

Irrigation Technology Interventions as Potential Options to Improve Water Security in India and Africa: A Comparative Review

Angom,

Viswanathan

2023

Sustainability

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Water is an essential resource for the realization of the United Nations’ 2030 Sustainable Development Goals. The increasing global food insecurity, hunger, human population, and uneconomical extraction and use of non-renewable resources require, among other things, a substantial intensification of agricultural production. In this context, there has been a need to adopt irrigation technologies, especially in developing countries where agriculture and its allied sectors employ more than 50% of the total population but account for up to 90% of the total freshwater consumptive use. India and Africa are at the crux of this conundrum, where there is an urgent need to build resilience with the already excessively allotted water resources. Innovative and water-efficient irrigation technologies could be one of the windows of opportunity to overcome water scarcity and enhance food security in these regions. This review sought to comparatively explore how irrigation technological interventions could help overcome water security challenges in India and Africa. Literature retrieved from multidisciplinary electronic databases indicated that, as part of the global south, both India and Africa have untapped irrigation potential due to the adoption of individual-centric irrigation. The irrigation approaches that possess the capacity to increase water and food security as well as reduce poverty levels in India and Africa are broadly grouped into micro-irrigation technologies, renewable energy-powered irrigation technologies, flood recession agriculture, and underground transfer of surface flood water for irrigation. Unlike in India, where overexploitation or extraction is the primary driver of water scarcity (physical scarcity), water insecurity in Africa results from poor management (economic scarcity). The adoption of the foregoing interventions is challenged by existing cultural and land tenure issues, limited access to efficient irrigation technologies and credit services, as well as an overreliance on national governments for support. Despite these challenges, opportunities exist for smallholder irrigation expansion. This study indicates that both Indian and African governments ought to offer stimulus packages that encourage holistic farmer-centric irrigation technologies to improve food and water security.

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Rice cultivation and water sustainability in peninsular India: Examining the challenges of climate change through extreme rainfall events with the Markov chain approach

Barati¹,

Manivasagam²,

Soundharajan³

et al. 2023

Developments in Environmental Science

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Rainfall Variability and Rice Sustainability: An Evaluation Study of Two Distinct Rice-Growing Ecosystems

Cited by 6 publications

References 34 publications

How Far Will Climate Change Affect Future Food Security? An Inquiry into the Irrigated Rice System of Peninsular India

How Far Will Climate Change Affect Future Food Security? An Inquiry into the Irrigated Rice System of Peninsular India

Irrigation Technology Interventions as Potential Options to Improve Water Security in India and Africa: A Comparative Review

Rice cultivation and water sustainability in peninsular India: Examining the challenges of climate change through extreme rainfall events with the Markov chain approach

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