03655naa a2200205 a 450000100080000000500110000800800410001910000180006024501410007826000090021952029640022865300130319265300100320565300130321570000130322870000210324170000180326270000180328077301510329811285382019-06-26       2019    bl uuuu     u00u1 u    #d1 aSANTOS, E. A.  aTHE TERROIR OF THE VITICULTURAL REGION OF S??O JOAQUIM, SANTA CATARINA STATE, BRAZILbTHE FINE WINES OF ALTITUDE.h[electronic resource]  c2019  aS??o Joaquim is the municipality with the largest number of properties dedicated to viticulture in the State of Santa Catarina and the numbers of vineyards have significantly increased in the last few years (from 181 vineyards in 2009 to 268 in 2013). These vineyards occupy a total area of 168.13 ha and produce a total of 1,100,000 liters of wine per year (estimated). The municipality, located in the Planalto Catarinense viticultural region, is the coldest wine-growing region of Brazil and contains the highest-altitude vineyards in the country. The Vin??cola Hiragami (1427 m) has the 8th highest vineyard in the world and is the best example of highaltitude viticulture in Brazil. The viticulture in S??o Joaquim was established in the last 20 years or less, so this is a young and developing viticultural region. Currently, the region produces more than 27 grape varieties planted mostly on the Paulsen 1103 rootstock. The most common cultivated varieties are Cabernet Sauvignon, Merlot, Sauvignon Blanc, Pinot Noir, Chardonnay, Sangiovese, Touriga Nacional, Montepulciano and Cabernet Franc. Information on the terroir of S??o Joaquim is needed in order to identify potential sites and to help improve the viticulture in the region. This work aims to characterize the terroir of S??o Joaquim, where wines are produced from Vitis vinifera grapes cultivated above 900 m of altitude, through a description and analysis of meteorological, physiographic, pedological, geological and viticultural factors. With respect to these factors, the S??o Joaquim region presents the following characteristics: (1) It has an annual mean temperature of 13 ??C, precipitation of 1680 mm/yr and solar radiation of 1832 h/yr; (2) It has altitudes between 715 and 1638 m, and generally steep slopes; 43% of the slopes present declivities between 20 ? 45% and show no preferred orientation; (3) It has both deep (&gt 150 cm) and shallow (&lt 100 cm) soils with clayey texture, an average pHwater between 4.68 and 5.52, and an average soil organic matter (SOM) content of 6%; (4) It is underlain by two units of volcanic rocks: a mafic unit (50.53 ? 55.09 wt.% SiO2) and a felsic unit (66.58 ? 70.12 wt.% SiO2). There is a correlation between the bedrock geological unit and the soil types, in which thicker Inceptsols are preferentially developed on the mafic volcanic rocks and thinner Entisols are preferentially developed on the felsic volcanic ones. The existing vineyards are mostly underlain by the mafic volcanic unit in areas of steep north-facing slopes. This preliminary study suggests that there are correlations between the lithological units, the soils that they give rise to and the declivities of the slopes. The municipality of S??o Joaquim has the potential to become a viticultural region of national and international importance, thus the knowledge of these relationships should assist in the evaluation and planning of future grape and wine production.  ageologia  asolos  avinhedos1 aLOSS, A.1 aFLORISBAL, L. M.1 aBESSER, M. L.1 aDORTZBACH, D.  tIn: SIMP??SIO SUL-BRASILEIRO DE GEOLOGIA, 11., 2019, Bento Gon??alves, RS. Resumos... Porto Alegre: Sociedade Brasileira de Geologia, 2019. p. 304