I-oxygen yamangqamuzana encibilikisiwe emanzini ibizwa ngokuthi i-oxygen encibilikile futhi ngokuvamile ibhalwe ukuthi D0. Inani le-oxygen encibilikisiwe emanzini angaphezulu ngu-5-10mg/L. Uma kunemimoya enamandla namagagasi, umoya-mpilo oncibilikisiwe emanzini ungafinyelela ku-14mg/L. Ukugcwala komoyampilo okuncibilikisiwe = inani elilinganiselwe le-oxygen encibilikisiwe/ukugcwala komoyampilo komoyampilo ngaphansi kwezimo ezilinganisiwe * 100%, okungukuthi, 90% nangaphezulu, inani elilinganiselwe lingaphezu kuka-7.5 mg/L, futhi ubuncane bungu-2 mg/L.
I-oksijeni ephansiamanziizodlula ezitshalweni futhi isuse umoya-mpilo esimisweni sezimpande. Ngokufanayo, izoqeda umoya-mpilo emhlabathini. Izitshalo ezinempilo kanye nezitshalo zomhlabathi ezinempilo zidinga umoya-mpilo kulezi zingxenye ezimbili.
Ukuntuleka komoyampilo oncibilikisiwe emanzini nakho kungabangela ezinye izinkinga. Isibonelo, ama-nematodes afana nenhlabathi ye-hypoxic. Ukunisela izitshalo ngamanzi aphansi oksijini kuzozisondeza phezulu futhi kulimaze kalula izimpande zezitshalo.
Ucwaningo luye lwabonisa ukuthi ukunciphisa ukugcwala komoyampilo oncibilikisiwe endaweni eyimpande yezitshalo kuzonciphisa ikhono lezitshalo lokumunca initrogen namanzi. Ukuntuleka komoyampilo kungalimaza izimpande. Enqubweni yokujwayela ukugxila okuphansi kwe-oxygen encibilikile, i-metabolism yezitshalo ishintshile. I-Hypoxia ngaphakathi kwesitshalo ibizwa ngokuthi i-hypoxia yangaphakathi. Omunye wemiphumela ukuwohloka kwe-sucrose, futhi izitshalo ziphendukela ezindleleni zokonga amandla ukunxephezela ukuntuleka komoya-mpilo.
I-photosynthesis ye-phytoplankton iwumthombo oyinhloko womoya-mpilo emachibini, ngokuvamile ibalwa ku-56% -80% womthombo womoya-mpilo; okunye kuvela ekuvunguzeni komoya namagagasi, ukuze umoya-mpilo osemoyeni uncibilike ngokuqondileamanzi. Okuwusizo 12-14mg/L
I-Heilongjiang: A 600-square-imithaichibi lokushuka lingakhuphula izinga lokushisa lamanzi ngamadigri ama-3 kuya kwangu-4 futhi kwenyuse ukukhiqizwa kokusanhlamvu ngo-6%.
Isikhathi sokuthumela: Sep-03-2021