Augiem sajucis kalendars: pavasara pukes zied atkal septembri

Published: Oct. 11, 2023, 8:07 a.m.

b'Noteikti ne viens vien ir paman\\u012bjis, ka \\u0161oruden p\\u013cavas uzvedas visai d\\u012bvaini. \\u0160\\u012b gada silt\\u0101s sezonas laikapst\\u0101k\\u013ci "izsitu\\u0161i" p\\u013cavas no ierast\\u0101 rit\\u0113juma. Laik\\u0101, kad dabai pamaz\\u0101m j\\u0101dodas ziemas mieg\\u0101, k\\u0101 tas ir ierasts m\\u016bsu platuma gr\\u0101dos, p\\u013cav\\u0101s zied saulpurenes. K\\u0101p\\u0113c \\u0161ogad p\\u013cavas uzvedas tik d\\u012bvaini? K\\u0101das var\\u0113tu b\\u016bt ilgtermi\\u0146a sekas, ja \\u0161\\u0101das vasaras atk\\u0101rtotos un ko par \\u0161\\u012bm izmai\\u0146\\u0101m dom\\u0101 no zied\\u0113\\u0161anas atkar\\u012bgie kukai\\u0146i? Raid\\u012bjum\\u0101 Zin\\u0101mais nezin\\u0101jam\\u0101 analiz\\u0113 un v\\u0113rt\\u0113 Latvijas Universit\\u0101tes Biolo\\u0123ijas fakult\\u0101tes Augu fiziolo\\u0123ijas katedras vad\\u012bt\\u0101js, profesors \\u0122ederts Ievi\\u0146\\u0161, bot\\u0101ni\\u0137e, Latvijas Dabas fonda eksperte R\\u016bta Sniedze-Kretalova un entomologs U\\u0123is Piter\\u0101ns.\\n\\n\\xa0\\n\\n"Augi ir piel\\u0101goju\\u0161ies visai efekt\\u012bvi dz\\u012bvot main\\u012bgos apk\\u0101rt\\u0113jos vides apst\\u0101k\\u013cos, jo main\\u012bba ir viena no vides pamat\\u012bpa\\u0161\\u012bb\\u0101m. Ne vienm\\u0113r var paredz\\u0113t laiku, kad main\\u012bba b\\u016bs. Mums ir labi zin\\u0101ma sezonalit\\u0101te, ziem\\u0101 ir aukst\\u0101ks nek\\u0101 vasar\\u0101, savuk\\u0101rt vasar\\u0101 ir vair\\u0101k saules gaismas. bet kur\\u0101 br\\u012bd\\u012b prec\\u012bzi tas b\\u016bs, vai tas b\\u016bs m\\u0113nesi agr\\u0101k vai v\\u0113l\\u0101k, tas nav defin\\u0113ts. T\\u0101 ir \\u0161\\u012b heterogenit\\u0101te [main\\u012bba] laik\\u0101. M\\u0113s to saist\\u0101m m\\u016bsdienas ar glob\\u0101l\\u0101m klimata izmai\\u0146\\u0101m, bet ja paskat\\u0101s gadu griezum\\u0101, desmitgad\\u0113s, cilv\\u0113ki vienm\\u0113r atceras, tad bija sausums, tad bija karstums, siltas ziemas. Faktiski augi \\u013coti labi sp\\u0113j tam piel\\u0101goties," v\\u0113rt\\u0113 \\u0122ederts Ievi\\u0146\\u0161.\\n\\nJuglas apkaim\\u0113 eso\\u0161o Velnezeru att\\u012br\\u012bs no fosfora ar alum\\u012bnija sulf\\u0101tu\\n\\nN\\u0101kam\\u0101 gada pavasar\\u012b Juglas apkaim\\u0113 eso\\u0161aj\\u0101 Velnezer\\u0101 notiks t\\u0101 att\\u012br\\u012b\\u0161ana no fosfora pies\\u0101r\\u0146ojuma, kas tur izveidojies jau pirms daudziem gadiem. Pies\\u0101r\\u0146ojuma likvid\\u0113\\u0161ana notiks ar ALUM metodi, tas noz\\u012bm\\u0113 - ezeru t\\u012br\\u012bs ar alum\\u012bnija sulf\\u0101tu, kas piesaista pie sevis \\u0161o fosforu. \\u0160\\u012bs darb\\u012bbas m\\u0113r\\u0137is ir, pirmk\\u0101rt, atbr\\u012bvot ezeru no fosfora, kas veicina a\\u013c\\u0123u zied\\u0113\\u0161anu vasar\\u0101s, sk\\u0101bek\\u013ca daudzuma samazin\\u0101\\u0161anos un ezeru aizaug\\u0161anu un, otrk\\u0101rt, lauzt m\\u012btus par alum\\u012bnija sulf\\u0101ta kait\\u012bgumu.\\n\\n\\u0160obr\\u012bd notiek ezera\\xa0 izp\\u0113te un speci\\u0101listi v\\u0101c datus, lai var\\u0113tu tos sal\\u012bdzin\\u0101t p\\u0113c Velnezera att\\u012br\\u012b\\u0161anas. Par to, k\\u0101 viss \\u0161is process notiks un k\\u0101 tie\\u0161i alum\\u012bnijs darbosies, st\\u0101sta Latvijas Hidroekolo\\u0123ijas instit\\u016bta vado\\u0161\\u0101 p\\u0113tniece Inta Dimante-Deimantovi\\u010da.\\n\\n\\u0160obr\\u012bd notiek izp\\u0113tes darbs Velnezer\\u0101 un tostarp tiek zvejotas ar\\u012b zivis, lai var\\u0113tu sal\\u012bdzin\\u0101t, k\\u0101das t\\u0101s bija pirms ALUM metodes un k\\u0101das t\\u0101s b\\u016bs p\\u0113c tam. P\\u0113tniece bilst, ka zviedru kol\\u0113\\u0123i vairs zivis nep\\u0113ta, jo sen ir p\\u0101rliecin\\u0101ju\\u0161ies, ka alum\\u012bnija s\\u0101\\u013ci, ko izmanto ezeru att\\u012br\\u012b\\u0161an\\u0101, zivis neietekm\\u0113. T\\u0101 k\\u0101 min\\u0113to metodi Latvij\\u0101 izmantos pirmo reizi, m\\u016bsu p\\u0113tnieki v\\u0113las b\\u016bt piln\\u012bgi dro\\u0161i un balst\\u012bties uz pa\\u0161u ieg\\u016btiem datiem.\\n\\nGaid\\u0101m n\\u0101kam\\u0101 gada maiju, kad Juglas apkaimes Velnezer\\u0101 tiks \\u016bden\\u012b ielaista speci\\u0101li apr\\u012bkota laiva, lai t\\u012br\\u012btu ezera vidi no fosfora pies\\u0101r\\u0146ojuma. K\\u0101 bilst Latvijas Hidroekolo\\u0123ijas instit\\u016bta vado\\u0161\\u0101 p\\u0113tniece Inta Dimante-Deimantovi\\u010da, tad \\u0161o procesu var\\u0113s v\\u0113rot ikviens interesents, b\\u016bs ar\\u012b iesp\\u0113jams uzdot jaut\\u0101jumus par ezera att\\u012br\\u012b\\u0161anas metodi ar alum\\u012bnija s\\u0101\\u013ciem, k\\u0101 ar\\u012b b\\u016bs iesp\\u0113jams iek\\u0101pt apr\\u012bkotaj\\u0101 laiv\\u0101.'