{"id":282,"date":"2025-08-17T23:39:04","date_gmt":"2025-08-17T21:39:04","guid":{"rendered":"http:\/\/oryrkot.cluster029.hosting.ovh.net\/?page_id=282"},"modified":"2026-08-28T16:30:57","modified_gmt":"2026-08-28T14:30:57","slug":"matieres-signifiantes","status":"publish","type":"page","link":"https:\/\/www.fabienvaissiere.com\/index.php\/matieres-signifiantes\/","title":{"rendered":"Mauvaises Terres"},"content":{"rendered":"\n<iframe loading=\"lazy\" src=\"https:\/\/www.fabienvaissiere.com\/maps\/carte_interactive_OSM.html\"\n        width=\"100%\" height=\"600\" style=\"border:none;\">\n<\/iframe>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les paysages de marnes des Alpes-de-Haute-Provence fortement \u00e9rod\u00e9es r\u00e9v\u00e8lent des tensions entre temporalit\u00e9s g\u00e9ologiques, biologiques et humaines. Leur \u00e9rosion naturelle est boulevers\u00e9e par les transformations anthropiques notamment par la d\u00e9forestation et les am\u00e9nagements hydrauliques. L\u2019homme est aux prises avec les ph\u00e9nom\u00e8nes naturels essentiels, cycle de l\u2019eau, climat, \u00e9rosion et s\u00e9dimentation.<br><br>Ces territoires accident\u00e9s indomptables sont qualifi\u00e9s de pauvres et inutiles : sols fragiles, impropres \u00e0 l\u2019agriculture, difficiles \u00e0 exploiter ou \u00e0 construire, d\u00e9pourvus de ressources imm\u00e9diatement valorisables. Pourtant, ils portent les traces d\u2019autres temporalit\u00e9s, depuis les s\u00e9diments d\u00e9pos\u00e9s dans les mers anciennes jusqu\u2019aux fossiles qu\u2019ils ont conserv\u00e9s. Les temps g\u00e9ologiques et humains s\u2019y superposent, r\u00e9v\u00e9lant la fragilit\u00e9 de notre emprise sur des processus qui nous pr\u00e9c\u00e8dent et nous survivront.<br><br>La marne noire, g\u00eanante et indompt\u00e9e, devient objet de r\u00e9flexion. Terre enfouie, paysage marin ancestral, comprim\u00e9e, soulev\u00e9e puis expos\u00e9e, elle nous engage dans un d\u00e9placement \u00e0 travers les profondeurs de la lithosph\u00e8re et l\u2019\u00e9paisseur des temps g\u00e9ologiques.<br>Le v\u00e9g\u00e9tal comme le gen\u00eat est marqueur du r\u00e9ensauvagement des terres pauvres impropres \u00e0 l\u2019agriculture moderne et de l\u2019abandon de l\u2019\u00e9levage extensif. Les galets de rivi\u00e8re arrach\u00e9s aux montagnes fertiles puis \u00e9rod\u00e9s par l\u2019eau des rivi\u00e8res jalonnent les mauvaises terres.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">The highly eroded marl landscapes of the Alpes-de-Haute-Provence reveal tensions between geological, biological and human temporalities. Their natural erosion has been profoundly altered by anthropogenic transformations, notably deforestation and hydraulic engineering. Here, human activity is entangled with fundamental natural processes: the water cycle, climate, erosion and sedimentation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These rugged, untamed territories are often described as poor and unproductive: fragile soils, unsuitable for agriculture, difficult to exploit or build upon, and devoid of immediately valuable resources. Yet they bear the traces of other temporalities, from sediments deposited in ancient seas to the fossils they have preserved. Geological and human times overlap here, revealing the fragility of our hold over processes that preceded us and will outlast us.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Black marl, resistant and untamed, becomes an object of reflection. Buried earth, an ancestral marine landscape, compressed, uplifted and eventually exposed, it draws us through the depths of the lithosphere and the vast duration of geological time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Plants such as broom mark the rewilding of poor land unsuited to modern agriculture and the abandonment of extensive livestock farming. River pebbles, torn from the mountains and worn down by flowing water, punctuate these marginal lands.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les paysages de marnes des Alpes-de-Haute-Provence fortement \u00e9rod\u00e9es r\u00e9v\u00e8lent des tensions entre temporalit\u00e9s g\u00e9ologiques, biologiques et humaines. Leur \u00e9rosion naturelle est boulevers\u00e9e par les transformations anthropiques notamment par&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-282","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.fabienvaissiere.com\/index.php\/wp-json\/wp\/v2\/pages\/282","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fabienvaissiere.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.fabienvaissiere.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.fabienvaissiere.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fabienvaissiere.com\/index.php\/wp-json\/wp\/v2\/comments?post=282"}],"version-history":[{"count":12,"href":"https:\/\/www.fabienvaissiere.com\/index.php\/wp-json\/wp\/v2\/pages\/282\/revisions"}],"predecessor-version":[{"id":598,"href":"https:\/\/www.fabienvaissiere.com\/index.php\/wp-json\/wp\/v2\/pages\/282\/revisions\/598"}],"wp:attachment":[{"href":"https:\/\/www.fabienvaissiere.com\/index.php\/wp-json\/wp\/v2\/media?parent=282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}