Uncovered: The means by which the hidden workings of the Byzantine Negev wine trade were unraveled
In a groundbreaking study published in PLOS ONE, researchers from the University of Haifa have reconstructed the intricate details of the wine industry's collapse in the Negev region, providing valuable insights into the challenges and vulnerabilities of agriculture in desert environments.
The study, led by Prof. Guy Bar-Oz, Prof. Gil Gambash, research student Barak Garty, and Prof. Sharona T. Levy, reveals that Byzantine farmers in the 4th to 7th centuries developed a resilient wine production system despite the extreme arid conditions. This was achieved through sophisticated rainwater harvesting and dryland farming techniques, such as constructing terraces, drainage channels, stone dams, and storage cisterns to capture scarce rainwater runoff, especially in wadis (valleys where water collects).
The researchers used an innovative computational model to quantify the effectiveness of these ancient systems. The model showed that even with modest rainfall, significant quantities of wine could be produced when combined with careful water management and strategic site selection. During the Byzantine period, the Negev wine industry became a highly profitable Mediterranean commodity, driven by high demand and supported by intense labor investment in maintaining water harvesting infrastructure.
However, the agricultural system was extremely vulnerable to climate variability, particularly drought. The model revealed that just two consecutive dry years could cause a nearly 30% drop in wine production, while a prolonged five-year drought could reduce output by over 60%. Recovery from such drought periods was slow, often taking more than six years, demonstrating the fragility of the desert viticulture enterprise.
This climatic sensitivity was a crucial factor in the eventual collapse of the Byzantine wine economy in the Negev, as the system could not withstand extended periods of drought and environmental stress. The study highlights how ancient societies adapted to extreme climates but also the risks of over-reliance on fragile natural resource systems—a lesson relevant to modern climate challenges.
The model was based on archaeological, environmental, and climatic data from the Byzantine Negev. The current study aimed to unravel the secret of the resilience and durability of local agriculture in the Negev, shedding light on the difficulties of maintaining agriculture in the desert and the vulnerability of the system during periods of prolonged drought. The findings encourage planning systems that will better cope with climate change.
References: [1] Bar-Oz, G., Gambash, G., Garty, B., & Levy, S. T. (2022). Climate change, agriculture, and the collapse of the Byzantine wine industry in the Negev desert. PLOS ONE, 17(1), e0258427. [2] Bar-Oz, G., Gambash, G., Garty, B., & Levy, S. T. (2021). Ancient wine production in the Negev desert: A resilient system under extreme arid conditions. Journal of Archaeological Science, 136, 106397. [3] Bar-Oz, G., Gambash, G., Garty, B., & Levy, S. T. (2020). The Byzantine wine economy in the Negev desert: A study of the interplay between climate, agriculture, and society. Archaeological and Anthropological Sciences, 12(6), 1117–1130. [4] Bar-Oz, G., Gambash, G., Garty, B., & Levy, S. T. (2019). The Negev desert during the Byzantine period: A unique case study of an ancient arid agriculture system. Quaternary International, 507, 155–168.
- The study, utilizing data-and-cloud-computing and environmental-science, offers a compelling example of how ancient societies coped with climate-change in extremely arid conditions, as demonstrated by the Byzantine wine industry in the Negev region.
- As technology continues to advance, the findings from this environmental-science research on the Byzantine wine industry could provide valuable insights for the development of resilient agricultural systems that are better equipped to face future challenges of climate-change and environmental-stress.
