{"id":4648,"date":"2020-09-07T05:40:30","date_gmt":"2020-09-07T05:40:30","guid":{"rendered":"https:\/\/daivings.lv\/?p=4648"},"modified":"2026-05-22T05:56:14","modified_gmt":"2026-05-22T05:56:14","slug":"nirsana-ummja-ezera","status":"publish","type":"post","link":"https:\/\/daivings.lv\/ee\/nirsana-ummja-ezera\/","title":{"rendered":"Sukeldumine Ummja j\u00e4rves"},"content":{"rendered":"<p>Oleme teinud Ummja j\u00e4rves sukeldumist, m\u00f5\u00f5tnud selle muda paksust ja l\u00e4bipaistvust, samuti uurinud endist sukeldumisharjutuskohta, et hinnata j\u00e4rve sobivust sukeldumiseks. Uuringu ajal on Ummja j\u00e4rve endist sukeldumisbaasi vaadates suve l\u00f5pus j\u00e4rves n\u00e4htavus vaid 1-1,5 meetrit. J\u00e4rve on kirjeldatud kui \u00fcht v\u00e4hestest selgeveelistest j\u00e4rvedest L\u00e4tis, kuid see on viimastel aastak\u00fcmnetel muutunud.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sisukord<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Sisukorra kuvamine\/peitmine\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">L\u00fclita<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/daivings.lv\/ee\/nirsana-ummja-ezera\/#Dortmana_lobelija_Ummja_ezera_krastos\" >Dortmani lobeelia Ummi j\u00e4rve kaldal<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/daivings.lv\/ee\/nirsana-ummja-ezera\/#Ummja_ezera_eitrofikacija\" >Ummja j\u00e4rve eutrofeerumine<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/daivings.lv\/ee\/nirsana-ummja-ezera\/#Ezeros_izveidojas_bez_skabekla_zonas\" >J\u00e4rvedes tekivad hapnikuvabad tsoonid<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/daivings.lv\/ee\/nirsana-ummja-ezera\/#Ezoros_mainas_krasas_dabiga_procesa_rezultata\" >Loodusliku protsessi tulemusena muudavad j\u00e4rved v\u00e4rvi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/daivings.lv\/ee\/nirsana-ummja-ezera\/#Aizliegums_peldeties_Ummja_ezera_vasara\" >Suvel Ummja j\u00e4rves ujumise keeld<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Dortmana_lobelija_Ummja_ezera_krastos\"><\/span>Dortmani lobeelia Ummi j\u00e4rve kaldal<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ummja j\u00e4rves kasvab vaid v\u00e4hestes j\u00e4rvedes leiduv taim \u2013 Dortmanise lobeelia, mis on ainuke L\u00e4tis leitud lobeeliate perekonnast v\u00e4ga haruldane ja seet\u00f5ttu eriti kaitsealune liik. Viimase 100 aasta jooksul on see taim - Dortmanise lobeelia j\u00e4rvede eutrofeerumise \u2013 kinnikasvamise ja veereostuse t\u00f5ttu kadunud enam kui 20 L\u00e4ti j\u00e4rvest.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ummja_ezera_eitrofikacija\"><\/span>Ummja j\u00e4rve eutrofeerumine<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>On arvamus, et <em>Dortmani lobeelia<\/em> Suurimaks ohuks on j\u00e4rve vee reostus orgaanilise p\u00e4ritoluga reostusega, mis peamiselt suplejate rohkuse t\u00f5ttu satub veekogudesse, mis on seletatav ka loodusliku eutrofeerumisega. Ummja j\u00e4rve vee v\u00e4rvus on muutunud sinakasrohelisest roheliseks, kuid vee kuulmine on v\u00e4henenud 1906. aasta 6 meetrilt 2017. aastal 3 meetrini.<\/p>\n<p><em><strong>Ummja j\u00e4rve kinnikasvamise \u00fcldist tendentsi uurides v\u00f5ib j\u00e4reldada, et seal toimub looduslik protsess,<\/strong> sest j\u00e4rves on paks orgaaniliste ainete koostis, <\/em>Pika perioodi jooksul alates tekkest kuni t\u00e4nap\u00e4evani on j\u00e4rved pidevalt arenenud ja muutunud. Kumbki j\u00e4rv pole s\u00e4ilitanud oma esialgset vormi ega sisu, sest niipea, kui lohk veega t\u00e4itub, algab nende kahe koostoime. \u00dchelt poolt kivistab ja lahustab vesi s\u00fcvendeid moodustavat alusp\u00f5hja ja setteid, teisalt muudavad lahustunud ained vee keemilist koostist.<\/p>\n<figure id=\"attachment_5691\" aria-describedby=\"caption-attachment-5691\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/daivings.lv\/daivings-ummja-ezera\/nirsana-ummja-ezera\/\" rel=\"attachment wp-att-5691\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-5691\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera-300x225.jpg\" alt=\"Sukeldumine Ummja j\u00e4rves\" width=\"300\" height=\"225\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera-300x225.jpg?v=1706275478 300w, https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera-1024x768.jpg?v=1706275478 1024w, https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera-768x576.jpg?v=1706275478 768w, https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera-16x12.jpg?v=1706275478 16w, https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera-1000x750.jpg?v=1706275478 1000w, https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera-230x173.jpg?v=1706275478 230w, https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera-350x263.jpg?v=1706275478 350w, https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera-480x360.jpg?v=1706275478 480w, https:\/\/daivings.lv\/wp-content\/uploads\/Nirsana-Ummja-ezera.jpg?v=1706275478 1200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-5691\" class=\"wp-caption-text\">Sukeldumine Ummja j\u00e4rves<\/figcaption><\/figure>\n<p>Hinnanguliselt kulutab 1 mg baktereid (Bacillus subtilis, Pseudomonas aeruginosa, Mycobacterium tuberculosis ja Acidithiobacillus ferrooxidans) kuni 4 l hapnikku tunnis. Aga 70 kg kaaluv inimene tarbib raske f\u00fc\u00fcsilise t\u00f6\u00f6 juures vaid 22 liitrit hapnikku tunnis, mis on mitu miljonit (100) korda v\u00e4hem kui bakterite kaal. Kui vetikaid on palju, siis kogu vajuvast massist ei piisa tavaliselt mineraliseerumiseks ning osa j\u00e4\u00e4kainetest koguneb lagunemata orgaanilise aine kujul j\u00e4rve p\u00f5hja.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ezeros_izveidojas_bez_skabekla_zonas\"><\/span>J\u00e4rvedes tekivad hapnikuvabad tsoonid<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Samal ajal tekib j\u00e4rve s\u00fcgavaimates kihtides hapnikuvaba ala. Talvel seevastu hapnik kaob veest samal p\u00f5hjusel t\u00e4ielikult. J\u00e4rved on kaetud j\u00e4\u00e4ga, hapnik \u00f5hust sisse ei p\u00e4\u00e4se, fotos\u00fcnteesi ei toimu, kuid talvituvad taimed, nagu ka loomad, vajavad hingamiseks hapnikku. Hapnikku on vees v\u00e4he, sest seda kasutatakse k\u00f5ige enam orgaanilise aine lagundamiseks. Seet\u00f5ttu janunevad kalad taime- ja loomarikastes j\u00e4rvedes. J\u00e4llegi rikastuvad j\u00e4rved kogu s\u00fcgavuses hapnikuga alles kevadel ja s\u00fcgisel, vee vertikaalse ringluse k\u00e4igus.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ezoros_mainas_krasas_dabiga_procesa_rezultata\"><\/span>Loodusliku protsessi tulemusena muudavad j\u00e4rved v\u00e4rvi<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sellistes j\u00e4rvedes muutub vee v\u00e4rvus tumedamaks ja selgus v\u00e4heneb v\u00e4ga j\u00e4rsult. Parimal juhul on vesi<br \/>l\u00e4bipaistev 5 - 6 m s\u00fcgavusel, tavaliselt 1 - 3 m s\u00fcgavusel. Enamik veereaktsioone on leeliseline (pH&gt; 7)<br \/>ja j\u00e4rvede \u00f5itsemise ajal - isegi tugevalt aluseline (pH 9). J\u00e4rve arengu k\u00e4igus on oligotroofne t\u00fc\u00fcp muutunud<br \/>eutroofne (E). Taimede toitumistingimused eutroofsetes j\u00e4rvedes on t\u00e4nu toitainete kuhjumisele suurep\u00e4rased. Seet\u00f5ttu on aine ja<br \/>energiavoolus on katkestus.\u00a0<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Aizliegums_peldeties_Ummja_ezera_vasara\"><\/span>Suvel Ummja j\u00e4rves ujumise keeld<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Et mitte h\u00e4irida selle hapra ja ebatavalise taime \u00f5itsemist, kehtivad ministrite kabineti m\u00e4\u00e4rused nr. 204 \u201eLooduspargi \u201eMere\u00e4\u00e4r\u201c kaitse ja kasutamise \u00fcksikeeskiri\u201c, millega keelatakse ujumine ja paadis\u00f5it Ummja j\u00e4rves 1. juunist 15. augustini.<\/p>\n<p><strong>Seotud sukeldumiskoolitused, mida juhib PADI MSDT sukeldumistreener:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/daivings.lv\/padi-open-water-diver-owd\/\">PADI Avaveesukelduja<\/a><\/li>\n<li><a href=\"https:\/\/daivings.lv\/advanced-open-water-diver-sertifikats\/\">PADI Advanced Open Water Diver<\/a><\/li>\n<li><a href=\"https:\/\/daivings.lv\/meklesana-zem-udens-ar-metala-detektoru\/\">Otsige vee all metallidetektoriga<\/a><\/li>\n<\/ul>\n<p>Valmistame ette, koolitame ja sertifitseerime sukeldujaid. Pakume sukeldumiskoolituses ja rahvusvaheliste PADI sukeldumistunnistuste v\u00e4ljastamisel 30 erinevat eriala. Praktikakohad sukeldumisprofessionaalidele\u00a0<a href=\"https:\/\/daivings.lv\/padi-divmaster\/\">Divemaster<\/a>\u00a0(<a href=\"https:\/\/daivings.lv\/piedavajam-darba-praksi-daivinga-centra\/\">GO-PRO \u2013 algajast kuni PADI Divemasterini<\/a>). Korraldame sukeldumisreise,\u00a0<a href=\"https:\/\/daivings.lv\/goto\/https:\/\/www.facebook.com\/daivings\" rel=\"nofollow\">j\u00e4lgi meid &gt;&gt;&gt;<\/a>!<\/p>\n<p><em>Avaveesukelduja<\/em>\u00a0\u00f5petame kursust Riias ja kogu L\u00e4tis (vajalik eelregistreerimine, tel \/<strong>WhatsApp 220-77-202<\/strong>)<\/p>\n<div class=\"image fullWidth\">\n<div class=\"imageContainer\">\u00a0<\/div>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Oleme teinud Ummja j\u00e4rves sukeldumist, m\u00f5\u00f5tnud selle muda paksust ja l\u00e4bipaistvust, samuti uurinud endist sukeldumisharjutuskohta, et hinnata j\u00e4rve sobivust sukeldumiseks. Uuringu ajal on Ummja j\u00e4rve endist sukeldumisbaasi vaadates suve l\u00f5pus j\u00e4rves n\u00e4htavus vaid [\u2026]<\/p>","protected":false},"author":1,"featured_media":5691,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-4648","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nirsanas-pasakumi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nir\u0161ana Ummja ezer\u0101 - Daivings.lv<\/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:\/\/daivings.lv\/ee\/nirsana-ummja-ezera\/\" \/>\n<meta property=\"og:locale\" content=\"et_EE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nir\u0161ana Ummja ezer\u0101 - 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