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Master Thesis

Assessment of green infrastructure and its design in vineyards

Abstract : Vineyard monoculture poses a threat to biodiversity by occupying key habitats and simplifying ecological communities. Landscape simplification is known as a cause of insect and disease outbreaks for a few decades now. Changes that will not radically modify the monoculture nature of agrosystems may moderate negative impacts temporarily. Though, for real resiliency and durable benefits, radical agroecological measures are needed to strengthen farming resiliency. Diversification of agrosystems in the form of biodiversity-wise designed systems such as agroforestry are such measures. In vineyard systems, cover crop is often the only biodiversity feature part of the farming strategy. A broader range of Green Infrastructure (GI, non-vine vegetation and water-systems) such as insectaries and hedgerows would be necessary for a systemic approach to better-balanced agrosystems, using predatorial insects to fight pest and shrubs for regulating airflow. While a great deal is known about the benefits of incorporating more biodiversity to mitigate negative impacts of monocultural farming, and to provide an increase of ecosystem services (ES), little study of its implementation within vineyards exists. Nor much study about whether vineyard owners purposely design for greening and how. Biodiversity as a tool does not seem to be part of the planting process even in new wine regions. Semi-structured long interviews and GI mapping are used in Waipara Valley wine region to understand how winegrowers make decisions about the incorporation of GI in vineyards and to locate them. Also, to increase farmer awareness, results will be shared in a comprehensive and informative way with the interviewees. The study shows vineyard design process doesn't include GI, and the use of farm maps is very limited. GI presence is low and mainly limited to areas that aren't suitable for production. Properties show three types of design: conventionally designed homogeneous vineyards, conventionally designed farms with the use of hedgerow and more diverse vineyard farms. The cellar door or Airbnb presence on properties increases the GI whereas certification or vineyard size are not major factors. Providing managers with a personal map and a biodiversity assessment as feedback is aiming at increasing their awareness on their biodiversity and give them a designing tool. As patches on each property are too limited to support a real biodiversity network, it would be good to work on a landscape scale with the involvement of regional and wine organisations to bind neighbouring properties together and build a biodiversity network based on waterways.
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Master Thesis
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Submitted on : Monday, October 26, 2020 - 10:27:05 AM
Last modification on : Monday, November 9, 2020 - 3:24:41 AM
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  • HAL Id : dumas-02971357, version 1


Nadège Grisard. Assessment of green infrastructure and its design in vineyards. Agronomy. 2019. ⟨dumas-02971357⟩



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