{"id":1607,"date":"2020-05-23T15:00:00","date_gmt":"2020-05-23T13:00:00","guid":{"rendered":"https:\/\/beta.svetkamene.eu\/?p=1607"},"modified":"2020-06-17T01:57:31","modified_gmt":"2020-06-16T23:57:31","slug":"sladem-kamieniarzy-na-ricansku-czesc-6-b-lesni-potok","status":"publish","type":"post","link":"https:\/\/svetkamene.eu\/index.php\/pl\/2020\/05\/23\/sladem-kamieniarzy-na-ricansku-czesc-6-b-lesni-potok\/","title":{"rendered":"Krajem kamen\u00edk\u016f na \u0158\u00ed\u010dansku &#8211; Lesn\u00ed potok, cz\u0119\u015b\u0107 1"},"content":{"rendered":"\n<p>\nOd 2011 r. mierz\u0105cy przelew Lesn\u00ed potok jest wyposa\u017cony w czujnik\nultrad\u017awi\u0119kowy mierz\u0105cy przep\u0142yw, temperatur\u0119 wody i&nbsp;przewodno\u015b\u0107\nstacji Fiedler-M\u00e1gr, kt\u00f3ry umo\u017cliwia przesy\u0142anie danych w\nwybranych odst\u0119pach czasu i&nbsp;przegl\u0105danie ich przez Internet. W\npobliskim szkolnym przedsi\u0119biorstwie le\u015bnym znajduje si\u0119 ta sama\nstacja Fiedler-M\u00e1gr, kt\u00f3ra od 2008 r. rejestruje intensywno\u015b\u0107\nopad\u00f3w oraz temperatur\u0119 i&nbsp;wilgotno\u015b\u0107. Pr\u00f3bki wody\npowierzchniowej s\u0105 pobierane z&nbsp;miejsca przelewu w celu analitycznego\nprzetworzenia ich w laboratorium.<\/p>\n\n\n\n<p>\nVOSS (pionowe kolektory opadowe) opracowane przez Czesk\u0105 S\u0142u\u017cb\u0119\nGeologiczn\u0105 stosowane w ca\u0142ej sieci GEOMON s\u0105 wykorzystywane do\ngromadzenia opad\u00f3w na otwartej przestrzeni. Tutaj konkretnie\ndokonuje si\u0119 pobioru tzw. opad\u00f3w podkoronowych z&nbsp;ro\u015blinno\u015bci\nli\u015bciastej. Urz\u0105dzenia do pobierania pr\u00f3bek nienale\u017c\u0105ce do sieci\nGEOMON s\u0105 wyposa\u017cone w szklane lejki a&nbsp;s\u0142u\u017c\u0105 do zapobiegania\nprzyczepianiu si\u0119 li\u015bci lub igie\u0142, kt\u00f3re nast\u0119pnie\nmodyfikowa\u0142yby sk\u0142ad opad\u00f3w. Kolejnym urz\u0105dzeniem zbudowanym z\nsiatki jest pobierak opadu \u015bci\u00f3\u0142ki, tj.&nbsp;li\u015bci lub igie\u0142. W ten\nbowiem spos\u00f3b najlepiej osadzaj\u0105 si\u0119 niekt\u00f3re elementy. W pobli\u017cu\nprzelewu mierz\u0105cego znajduje si\u0119 studnia o&nbsp;g\u0142\u0119boko\u015bci 5 m, kt\u00f3ra\nw dolnej cz\u0119\u015bci na wysoko\u015bci 0,5&nbsp;m jest pokryta materia\u0142em\noboj\u0119tnym z&nbsp;perforacj\u0105. Studnia ta s\u0142u\u017cy do pobierania pr\u00f3bek\np\u0142ytkiej wody podpowierzchniowej, mierz\u0105c stale poziom w\u00f3d\ngruntowych.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"945\" height=\"630\" src=\"https:\/\/beta.svetkamene.eu\/wp-content\/uploads\/2020\/06\/thompsonuv_prepad_foto_7-1.png\" alt=\"\" class=\"wp-image-1608\" srcset=\"https:\/\/svetkamene.eu\/wp-content\/uploads\/2020\/06\/thompsonuv_prepad_foto_7-1.png 945w, https:\/\/svetkamene.eu\/wp-content\/uploads\/2020\/06\/thompsonuv_prepad_foto_7-1-300x200.png 300w, https:\/\/svetkamene.eu\/wp-content\/uploads\/2020\/06\/thompsonuv_prepad_foto_7-1-768x512.png 768w\" sizes=\"(max-width: 945px) 100vw, 945px\" \/><figcaption>  <strong>Fotografia 7: <\/strong>Przelew Thomsona dorzecze Lesn\u00ed potok, stanowiska pomiarowe i&nbsp;kolektory opadowe. Zdj\u0119cie T. Navr\u00e1til, 2016. <\/figcaption><\/figure>\n\n\n\n<p>\nZebrane pr\u00f3bki opad\u00f3w s\u0105 pobierane raz w miesi\u0105cu, a&nbsp;woda\npowierzchniowa jest pobierana jednorazowie do dalszej analizy\nchemicznej. Dzi\u0119ki temu sposobowi \u015bledzenia w\u00f3d zaobserwowano od\n1994 roku, w \u015brodkowych Czechach, znaczn\u0105 popraw\u0119 jako\u015bci\n\u015brodowiska. Ze wzgl\u0119du na ograniczenie emisji atmosferycznych\nzwi\u0105zk\u00f3w siarki i&nbsp;azotu przez proces odsiarczania, w 2015 r.\n\u015brednia warto\u015b\u0107 opad\u00f3w wzros\u0142a do 5,2. Spadek pH&nbsp;by\u0142\nspowodowany spadkiem st\u0119\u017cenia anion\u00f3w siarczanowych w opadach\natmosferycznych w plenerze w latach 1994-2015. Je\u015bli por\u00f3wnamy\nst\u0119\u017cenie w 1994 r. \u2013 powy\u017cej 4 mg \/ L ze st\u0119\u017ceniem w 2015 r. \u2013\nponi\u017cej 2 mg \/ L, jest to spadek o&nbsp;ponad 50&nbsp;%. W przypadku anion\u00f3w\nazotanowych spadek by\u0142 znacznie mniej znacz\u0105cy, bior\u0105c pod uwag\u0119,\n\u017ce znaczna cz\u0119\u015b\u0107 emisji azotu pochodzi ze \u017ar\u00f3de\u0142 innych ni\u017c\nsiarka. G\u0142\u00f3wnymi \u017ar\u00f3d\u0142ami emisji azotu s\u0105 silniki spalinowe lub\nrolnictwo.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"460\" height=\"250\" src=\"https:\/\/beta.svetkamene.eu\/wp-content\/uploads\/2020\/06\/ph_srazek_obr4-1.png\" alt=\"\" class=\"wp-image-1609\" srcset=\"https:\/\/svetkamene.eu\/wp-content\/uploads\/2020\/06\/ph_srazek_obr4-1.png 460w, https:\/\/svetkamene.eu\/wp-content\/uploads\/2020\/06\/ph_srazek_obr4-1-300x163.png 300w\" sizes=\"(max-width: 460px) 100vw, 460px\" \/><figcaption>  <strong>Obrazek 4: <\/strong>\u015arednia roczna warto\u015b\u0107 pH&nbsp;opad\u00f3w atmosferycznych na otwartym terenie dorzecza Lesn\u00ed potok. <\/figcaption><\/figure>\n\n\n\n<p>Barbora Dud\u00edkov\u00e1 Schulmannov\u00e1, Vojt\u011bch Janou\u0161ek, Tom\u00e1\u0161 Navr\u00e1til, V\u00e1clav Ryba\u0159\u00edk i&nbsp;Pavel Vla\u0161\u00edmsk\u00fd<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Od 2011 r. mierz\u0105cy przelew Lesn\u00ed potok jest wyposa\u017cony w czujnik ultrad\u017awi\u0119kowy mierz\u0105cy przep\u0142yw, temperatur\u0119&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1604,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[338,366],"tags":[438,461,458,437],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.1 - 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