{"id":50581,"date":"2026-08-31T18:37:03","date_gmt":"2026-08-31T18:37:03","guid":{"rendered":"https:\/\/cp.snarskis.lt\/index.php\/2026\/08\/31\/mokslininkai-patikrino-didziausia-zemes-seklu-banka-zinia-apie-bioivairove-niuri\/"},"modified":"2026-08-31T18:37:03","modified_gmt":"2026-08-31T18:37:03","slug":"mokslininkai-patikrino-didziausia-zemes-seklu-banka-zinia-apie-bioivairove-niuri","status":"publish","type":"post","link":"https:\/\/cp.snarskis.lt\/index.php\/2026\/08\/31\/mokslininkai-patikrino-didziausia-zemes-seklu-banka-zinia-apie-bioivairove-niuri\/","title":{"rendered":"Mokslininkai patikrino did\u017eiausi\u0105 \u017dem\u0117s s\u0117kl\u0173 bank\u0105: \u017einia apie bio\u012fvairov\u0119 \u2013 ni\u016bri"},"content":{"rendered":"

Kas slepiasi po m\u016bs\u0173 kojomis<\/h2>\n

Dirvo\u017eemis yra mil\u017eini\u0161kas nat\u016bralus s\u0117kl\u0173 rezervuaras, nuo kurio priklauso ekosistem\u0173 atsigavimas po gaisr\u0173, sausr\u0173 ar potvyni\u0173. Mokslininkai, apibendrin\u0119 pasaulinius duomenis, \u012fsp\u0117ja: \u0161is nematomas \u201edraudimo polisas\u201c kai kuriose vietose skursta.<\/p>\n

Tyr\u0117jai i\u0161analizavo pasaulin\u0119 duomen\u0173 baz\u0119, apiman\u010di\u0105 3 096 dirvo\u017eemio m\u0117ginius i\u0161 94 \u0161ali\u0173 ir vis\u0173 \u017eemyn\u0173. Med\u017eiaga surinkta i\u0161 ma\u017edaug 1 400 ankstesni\u0173 tyrim\u0173, kuriuose buvo identifikuojamos ir skai\u010diuojamos dirvoje esan\u010dios s\u0117klos bei daigai.<\/p>\n

Skai\u010diai \u012fsp\u016bdingi: vidutini\u0161kai viename kvadratiniame metre sausumos, \u0161lapyni\u0173 ir vandens aplink\u0173 dirvo\u017eemio gali b\u016bti daugiau nei 5 000 s\u0117kl\u0173. Vis d\u0117lto didelis s\u0117kl\u0173 kiekis dar nerei\u0161kia didel\u0117s r\u016b\u0161i\u0173 \u012fvairov\u0117s.<\/p>\n

Paradoksas: s\u0117kl\u0173 daug, r\u016b\u0161i\u0173 ma\u017eai<\/h2>\n

Analiz\u0117 parod\u0117, kad skirtingose ekosistemose s\u0117kl\u0173 gausa ir r\u016b\u0161i\u0173 skai\u010dius ne visada sutampa. Atogr\u0105\u017e\u0173 teritorijose dirvo\u017eemio s\u0117kl\u0173 banke gali b\u016bti daug r\u016b\u0161i\u0173, ta\u010diau pa\u010di\u0173 s\u0117kl\u0173 kiekis palyginti nedidelis.<\/p>\n

Tuo metu \u017eem\u0117s \u016bkio paskirties plotuose neretai fiksuojama prie\u0161inga situacija: s\u0117kl\u0173 dirvoje gali b\u016bti itin daug, bet jos priklauso gerokai ma\u017eesniam r\u016b\u0161i\u0173 skai\u010diui. Tai rei\u0161kia, kad tokie plotai turi ribotesn\u012f biologin\u0117s \u012fvairov\u0117s \u201eatsargin\u012f fond\u0105\u201c atei\u010diai.<\/p>\n

\u017dmogaus veiklos p\u0117dsakas matomas ir po \u017eeme<\/h2>\n

Vienas ry\u0161kiausi\u0173 tyrimo signal\u0173 susij\u0119s su \u017emogaus daromu poveikiu. Palyginus skirtingas buveines paai\u0161k\u0117jo, kad ma\u017eiau \u017emogaus pakeistose teritorijose dirvo\u017eemio s\u0117kl\u0173 bankai yra r\u016b\u0161i\u0173 po\u017ei\u016briu turtingesni nei stipriai degraduotuose ekosistemose.<\/p>\n

\u201eBio\u012fvairov\u0117s kriz\u0117 gali b\u016bti matoma ne tik augaluose pavir\u0161iuje, bet ir j\u0173 ateities kartose, pasl\u0117ptose dirvo\u017eemyje\u201c, \u2013 teigiama tyrimo i\u0161vad\u0173 interpretacijoje.<\/p>\n

Tai svarbu, nes s\u0117kl\u0173 bankas yra viena pagrindini\u0173 prie\u017eas\u010di\u0173, kod\u0117l gamta kartais geba atsigauti net po dideli\u0173 sukr\u0117tim\u0173. Jei dirvoje lieka ma\u017eiau r\u016b\u0161i\u0173, nat\u016bralus atsik\u016brimas gali tapti l\u0117tesnis, o kai kuriais atvejais ir nepakankamas.<\/p>\n

Tyr\u0117jai pabr\u0117\u017eia, kad vien pavir\u0161in\u0117s augalijos apsauga gali nepakakti, jei tuo pat metu skursta nematomas dirvo\u017eemio s\u0117kl\u0173 \u201earchyvas\u201c. D\u0117l to gali ma\u017e\u0117ti vadinamosios pasyvios renat\u016bralizacijos s\u0117km\u0117, kai suma\u017einus \u017emogaus spaudim\u0105 tikimasi, jog ekosistema atsikurs savaime.<\/p>\n

Darbo autoriai ragina toliau tirti, kokio masto yra \u0161ie poky\u010diai skirtinguose regionuose ir k\u0105 jie reik\u0161 konkre\u010dioms buvein\u0117ms. Tokios \u017einios tampa vis aktualesn\u0117s planuojant gamtos atk\u016brimo priemones, ypa\u010d ten, kur dirvo\u017eemis jau paveiktas intensyvios \u017eemdirbyst\u0117s ar kit\u0173 \u017emogaus veikl\u0173.<\/p>\n","protected":false},"excerpt":{"rendered":"

Pasaulin\u0117 dirvo\u017eemio analiz\u0117 rodo: nat\u016bralus s\u0117kl\u0173 bankas mil\u017eini\u0161kas, bet \u017emogaus paveiktose vietose r\u016b\u0161i\u0173 \u012fvairov\u0117 nyksta.<\/p>\n","protected":false},"author":0,"featured_media":50582,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[685,710,13345,39071,38539],"miestas":[],"class_list":["post-50581","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mokslas","tag-biologine-ivairove","tag-dirvozemis","tag-ekosistemu-atkurimas","tag-renaturalizacija","tag-seklu-bankai"],"acf":[],"_links":{"self":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/50581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/comments?post=50581"}],"version-history":[{"count":0,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/50581\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media\/50582"}],"wp:attachment":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media?parent=50581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/categories?post=50581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/tags?post=50581"},{"taxonomy":"miestas","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/miestas?post=50581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}