sample of soil, flint stone, vineyards of pouilly-fume appellation, making of dry white wine from sauvignon blanc grape growing on

agriculture aoc appellation burgundy chateau clay cultivation domain dry europe flint france french wine grape grapes green harvest hill kimmeridgian marl landscape loire nature nievre organic outdoor plant pouillyfume pouillysurloire rows sancerre sauvignon blanc soil summer tourism travel valley village vineyard viticulture white