Beyond Biodiversity Conservation: Land Sharing Constitutes Sustainable Agriculture in European Cultural Landscapes

Revegetation of vineyard terrace embankments: A matter of seed mixture and seeding technique

Maintaining traditional agricultural management to preserve agrobiodiversity remains one of the major challenges for biodiversity conservation in Europe. In Germany, viticulture on steep slopes has shaped cultural landscapes of high conservational value but has declined strongly in recent decades due to insufficient profitability. One promising approach to keep management economically viable is modern vineyard terracing. Here, vineyard rows run parallel to the hillside, thus facilitating management and lowering production costs. At the same time, terrace embankments offer large non-cropped areas between the vines that could make a significant contribution to biodiversity. However, to fully exploit that potential sustainable revegetation of terrace embankments is mandatory but barely studied. For three consecutive years, we evaluated the effects of different seed mixtures (hay threshing, regional and commercial mixture), seeding techniques (manual vs. hydro-seeding), and the effect of nurse plants, hay mulch, and fertilizer on the establishment and maintenance of vegetation on three terraced vineyards in the Upper Middle Rhine Valley, Germany. The regional mixture best met the demands of biodiversity conservation by providing high herb and flower cover. Hay threshing and the regional mixture provided sufficient vegetation cover to reduce the risk of erosion, whereas the commercial mixture performed poorly in terms of vegetation cover and plant diversity. For hydro-seeding, target species richness was higher and bare ground cover was significantly reduced compared to manual seeding. Nurse plants, hay mulch, and fertilizer application only marginally improved plant establishment. Together these results emphasize that hydro-seeding with regional seeds is the best approach for revegetation of vineyard terrace embankments by combining high biodiversity and sufficient vegetation cover to reduce erosion risks at the best cost-benefit ratio for winegrowers. Vineyard terracing contributes to maintaining economically viable viticulture on steep slopes and may concurrently act as a conservation tool for biodiversity in vineyard landscapes.

Old but Not Old Fashioned: Agricultural Landscapes as European Heritage and Basis for Sustainable Multifunctional Farming to Earn a Living

Today, farmers are multioptional entrepreneurs, demanding far more skills than only those of agricultural production. The awareness of European agricultural landscape (EAL) values should enable farmers to create new business strategies. Open education repositories (OERs) based on online vocational education and training (VET) are still not widespread. The project FEAL (multifunctional farming for the sustainability of EALs) has brought interactive material online based on results of two questionnaire surveys performed in Germany, Italy, Slovakia, Slovenia, and Spain. A survey of 31 experts confirmed that VET activities are very much needed for farmers. A survey of 28 farmers had different aims and content. Data collected from farmers were used to evaluate basic farm attributes, farmers’ characteristics, and keywords indicating the farms’ activities, multifunctionality and sustainability, and EALs, specifying the presence of nature- and landscape-protected areas. A decision-making schema, applying a collection of terms from literature analysis and the questionnaire’s results, is a support tool to develop a model of a farm that contributes to the preservation of the landscape’s character, strengthening the landscape’s quality, and sustainable business. The model presents the interactions of the farm (its territory and ancestral heritage, control of natural resources, tourism services and cultural events, public goods provision, and quality guarantees); socioeconomic strategies regarding quality, marketing, communication, business operation, and monitoring are proposed.