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Showing 1–22 of 22 results
Advanced filters: Author: Navin Ramankutty Clear advanced filters

  • Graphics are becoming increasingly important for scientists to effectively communicate their findings to broad audiences, but most researchers lack expertise in visual media. We suggest collaboration between scientists and graphic designers as a way forward and discuss the results of a pilot project to test this type of collaboration.

    • Colin K. Khoury
    • Yael Kisel
    • Ari Novy
    Comments & OpinionOpen Access
    Communications Biology
    Volume: 2, P: 1-5

  • Global yields of major crops are analysed using climate, irrigation and new nutrient data to show that large production increases are possible from closing yield gaps to 100% of attainable yields, and that changes in management practices needed to close yield gaps vary considerably by region and current intensity.

    • Nathaniel D. Mueller
    • James S. Gerber
    • Jonathan A. Foley
    Research
    Nature
    Volume: 490, P: 254-257

  • In response to continuing habitat and biodiversity loss, leading conservationists have proposed setting aside half the earth for nature. This study evaluates the trade-offs with food production and finds losses in croplands, pasture and calories that vary with the conservation strategy.

    • Zia Mehrabi
    • Erle C. Ellis
    • Navin Ramankutty
    Research
    Nature Sustainability
    Volume: 1, P: 409-412

  • Analyses of the effects of extreme weather disasters on global crop production over the past five decades show that drought and extreme heat reduced national cereal production by 9–10%, whereas no discernible effect at the national level was seen for floods and extreme cold; droughts affect yields and the harvested area, whereas extreme heat mainly affects yields.

    • Corey Lesk
    • Pedram Rowhani
    • Navin Ramankutty
    Research
    Nature
    Volume: 529, P: 84-87

  • Conventional agricultural intensification can lead to ‘traps’ where production actually declines because of biodiversity loss. By integrating case study archetypes, literature review and simulations, the authors show what systems are at risk of traps and how these risks can be limited.

    • Alfred Burian
    • Claire Kremen
    • Ralf Seppelt
    ResearchOpen Access
    Nature Ecology & Evolution
    Volume: 8, P: 752-760

  • Food production stability depends on yield, and planted and harvested areas, but most research has only studied yield response to climate. This study finds that planted area and harvestable fraction contribute substantially to US crop production shocks, emphasizing their key role in food system stability.

    • Dongyang Wei
    • Jessica A. Gephart
    • Kyle Frankel Davis
    Research
    Nature Sustainability
    Volume: 6, P: 1177-1185

  • Determining the safe operating space for sustainable food production depends on the interactions of multiple processes within the Earth system. Expert knowledge provides critical insight into how these processes interact that improves Earth system modelling and our understanding of the limits of global food production.

    • Anna Chrysafi
    • Vili Virkki
    • Matti Kummu
    ResearchOpen Access
    Nature Sustainability
    Volume: 5, P: 830-842

  • The ability of organic agriculture to feed the world population remains contentious. A biophysical optimization model indicates the extent to which nitrogen availability could limit the expansion of organic production systems and what measures could alleviate this limitation.

    • Pietro Barbieri
    • Sylvain Pellerin
    • Thomas Nesme
    Research
    Nature Food
    Volume: 2, P: 363-372

  • An analysis of the global production of maize, rice, soybean and wheat from 1961 to 2008 reveals that, although production synchronization within these crops has decreased, leading to increased stability, synchrony between crops has increased, resulting in higher instability of global total calorie production.

    • Zia Mehrabi
    • Navin Ramankutty
    Research
    Nature Ecology & Evolution
    Volume: 3, P: 780-786

  • Demand for crops is increasing, but it is not clear whether the yields can meet this demand. Using crop yield observations, this study analyses global trends and finds that while yields continue to increase in some areas, across 24–39% of crop-growing regions, yields have stagnated or declined over the past 50 years.

    • Deepak K. Ray
    • Navin Ramankutty
    • Jonathan A. Foley
    Research
    Nature Communications
    Volume: 3, P: 1-7

  • Most of the world’s farms are small. This study finds that smaller farms have higher yields and biodiversity than larger ones but little difference in greenhouse gas emissions and profits.

    • Vincent Ricciardi
    • Zia Mehrabi
    • Navin Ramankutty
    Research
    Nature Sustainability
    Volume: 4, P: 651-657

  • Big data and mobile technology are considered a growing boon for small-scale farmers. This study finds that only 24–37% of farms of <1 ha are currently served by third generation (3G) or 4G services, compared to 74–80% of farms of >200 ha, and that regions with poor yields and low food security have poor service coverage.

    • Zia Mehrabi
    • Mollie J. McDowell
    • Andy Jarvis
    Research
    Nature Sustainability
    Volume: 4, P: 154-160

  • A meta-analysis assessing the relative yields of organic and conventional agriculture shows that organic yields are on average lower, but that the magnitude of the difference is dependent on context.

    • Verena Seufert
    • Navin Ramankutty
    • Jonathan A. Foley
    Research
    Nature
    Volume: 485, P: 229-232

  • Since the 1990s, global agricultural output has been driven largely by innovations that raised the efficiency of using labour, land and other inputs, together called total factor productivity (TFP). This Perspective discusses this reality and suggests two pathways for future growth: technology-based and ecosystem-based. Future research on farm-system sustainability and resilience should leverage these options.

    • Oliver T. Coomes
    • Bradford L. Barham
    • Jean-Paul Chavas
    Reviews
    Nature Sustainability
    Volume: 2, P: 22-28

  • Livestock products are under scrutiny from environmental, human health and animal welfare perspectives. Future policy decisions must address and represent the complexity of the interactions between livestock and the Sustainable Development Goals, and beyond.

    • Zia Mehrabi
    • Margaret Gill
    • Navin Ramankutty
    Reviews
    Nature Food
    Volume: 1, P: 160-165