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ТГУ предоставит свою станцию для изучения бактерий-«первопроходцев»

Бактерии, обживающие свободные от ледника территории, станут объектом исследований в одном из проектов INTERACT 2. Этим летом на станции ТГУ «Актру» будет работать эксперт Национального исследовательского совета Италии Стефано Вентура, занимающийся изучением экосистем Арктики и Антарктики.

В результате таяния высокогорных ледников обнажаются большие участки земной поверхности. Они выглядят совершенно безжизненными, но уже в первые годы на освободившейся территории развивается активная микробная жизнь. «Первопоселенцами» этих территорий являются бактерии, которые играют ключевую роль в формировании почв.

Ранние «дорастительные» этапы в России пока не изучены, поэтому проект итальянского ученого является пионерным. Планируется, что в его реализации будут задействованы молодые ученые Томского государственного университета. В горах Алтая, где располагается исследовательская база ТГУ, отступление ледников датировано специальными камнями — метками. Поэтому ученые смогут отследить хронопоследовательность заселения территории бактериями и увидеть, как со временем увеличивается количество органики на этих участках.

Результаты исследований, проведенных на станции «Актру», будут сопоставлены с данными, полученными Стефано Вентурой в ходе изучения первичной колонизации бактерий в Скандинавии и Гренландии. Это позволит оценить динамику процесса «обживания» микробами пустынных и малозаселенных участков, находящихся в разных климатических условиях. Исследователи попытаются установить, каков механизм постепенного превращения практически стерильного грунта в почву, пригодную для растительной жизни.

 

Стефано Вентура также примет участие в летней научной школе «Природные условия арктических и альпийских областей: рельеф, почвы, вечная мерзлота, ледники, биота и образ жизни коренных этнических групп в условиях быстро меняющегося климата», которая пройдет в «Актру» в июле 2017 года.

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