{"id":4061,"date":"2007-05-29T09:54:54","date_gmt":"2007-05-29T09:54:54","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/05\/29\/la-perception-d\/"},"modified":"2012-07-12T09:57:10","modified_gmt":"2012-07-12T09:57:10","slug":"la-perception-d","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/05\/29\/la-perception-d\/","title":{"rendered":"La perception de la nature."},"content":{"rendered":"

\"Departementloire\"<\/a>Quand on parle de nature dans notre pays, on en a une image fausse. Parce que c’est un paysage b\u00e2ti, construit par l’homme au cours des si\u00e9cles. Quelquefois, les fronts de colonisations sont forts r\u00e9cents. La plaine du Forez, par exemple. Jusqu’au 19\u00b0si\u00e9cle, elle est d\u00e9serte, malsaine, un vaste mar\u00e9cage pourri. Un reliquat d’un grand lac que la rupture du seuil de neulise \u00e0 cr\u00e9e. Puis, on s’est mis \u00e0 drainer, sous le second empire, puis, lentement, la population s’est install\u00e9 en plus grand nombre dans la plaine. <\/p>\n

Comme on voit, rien n’est \u00e9crit. Les for\u00eats, par exemple, n’ont jamais d\u00e9pass\u00e9s 40 % de la superficie, avec pr\u00e9s de 30 % d\u00e9sormais, on est pas tr\u00e9s loin du maximum. Si l’on ajoute 40 % de for\u00eats, \u00e0 10 % de prairies naturelles et 10 % qui ne servent \u00e0 rien, on arrive qu’\u00e0 60 %. Le reste ? Des marais. Aujourd’hui, r\u00e9duit \u00e0 l’\u00e9tat de reliquat. Patiemment, les moines b\u00e2tisseurs ont augment\u00e9s, en les drainants, les surfaces cultivables. Et ce f\u00fbt un tr\u00e9s long combat. En effet la production de biomasse d’un marais est consid\u00e9rable.  Aujourd’hui, aussi, on s’aper\u00e7oit de leur r\u00f4le de r\u00e9gulateurs<\/a>, \u00e0 l’\u00e9poque des s\u00e9cheresses, ou plut\u00f4t de l’absence de r\u00e9gulation d\u00e9sormais. Mais, dans l’existence de vastes marais, est peut-\u00eatre une clef de la solution \u00e9nerg\u00e9tique. En effet, ces surfaces, faiblement en eaux, sont susceptibles, comme avec la jussie<\/a>, comme avec la hyacinthe d’eau<\/a>, d’\u00eatre de consid\u00e9rables producteurs de biomasse. En effet, dans les deux cas, on peut arriver \u00e0 200 tonnes de mati\u00e9re s\u00e9che par an et par hectare. La possibilit\u00e9 la plus prometteuse, les algues en ce moment, n’arrive qu’\u00e0 60 tonnes l’hectare, dans de bonnes conditions.
" Avec 15,5 t\/h un site en mer ferm\u00e9e ( mer noire mediterrann\u00e9e). Une installation de la taille de la corse en mediterrann\u00e9e 10000km2 suffira \u00e0 produire 99 % des besoin francais en carburant pour un cout d’\u00e0 peine 14 centime le litre." Solution sans doute \u00e0 \u00e9tudier de tr\u00e9s pr\u00e9s… Il n’y a pas de mauvaises plantes, que des plantes que l’on utilise pas .
<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Quand on parle de nature dans notre pays, on en a une image fausse. Parce que c’est un paysage b\u00e2ti, construit par l’homme au cours des si\u00e9cles. Quelquefois, les fronts de colonisations sont forts r\u00e9cents. La plaine du Forez, par exemple. Jusqu’au 19\u00b0si\u00e9cle, elle est d\u00e9serte, malsaine, un vaste mar\u00e9cage pourri. Un reliquat d’un grand […]<\/p>\n","protected":false},"author":198,"featured_media":5646,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,8],"tags":[1777],"class_list":["post-4061","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-bio-carburants","tag-regulateurs-jussie-hyacinthe-deau"],"yoast_head":"\nLa perception de la nature. - leblogenergie.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/05\/29\/la-perception-d\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"La perception de la nature. - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"Quand on parle de nature dans notre pays, on en a une image fausse. Parce que c’est un paysage b\u00e2ti, construit par l’homme au cours des si\u00e9cles. Quelquefois, les fronts de colonisations sont forts r\u00e9cents. La plaine du Forez, par exemple. Jusqu’au 19\u00b0si\u00e9cle, elle est d\u00e9serte, malsaine, un vaste mar\u00e9cage pourri. 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