Coob tus neeg pib tshiab hauv dej yug ntses, ua ntej ntsib teeb meem, puzzled: Yuav ua li cas yog cov thoob dej yug ntses yog dej hauv dej. Qhov tseeb, muaj peev xwm muaj ob peb lub laj thawj rau lub voj voog, thiab ib qho yuav tsum ua kom zoo sib xws, tsis suav lawv ib qho los ntawm ib qho.
Vim li cas cov dej hauv lub dav hlau ntses?
Yog tias koj nyuam qhuav hloov cov dej hauv cov thoob dej yug ntses , tab sis nws tsis tuaj yeem thuam koj nrog kev pom zoo, nws yog feem ntau yuav txiav txim siab seb cov dej nyob hauv cov thoob dej los yog cov av qeeg yuav yooj yim heev. Nws yuav txaus kom tos ob peb teev. Feem ntau yuav tshwm sim, yog vim li cas nws yooj yim heev: koj txawm tias tsis zoo ntxuav hauv av ua ntej pouring dej, los yog, sau cov thoob dej yug ntses, puas tau nws dhau nrawm nrawm thiab tsa tus sediment los ntawm lub qab. Qhov no yog qhov teeb meem tshwj xeeb tshaj yog rau cov thoob dej yug ntses uas xuab zeb siv los ua tus primer. Lwm cov laj thawj zoo yog cov ntses lawv tus kheej, qee hom uas tsis mloog khawb hauv qhov quav. Goldfish, vailehvosty thiab cichlids yog tshwj xeeb tshaj yog koom tes hauv no. Lwm qhov laj thawj rau lub voj voog ntawm dej tuaj yeem yog pub ntev tshaj thiab pub dhau qhov thoob dej yug ntses. Thaum kawg, kab mob bacterial clouding of water yog qhov tseem ceeb tshaj plaws.
Yuav ua li cas yog hais tias cov dej nyob hauv cov thoob dej yug ntses loj sai?
Yog li, yog hais tias cov dej yog qhov turbid tsis sai tom qab hloov, thiab koj paub tseeb tias qhov no tsis txheeb txog kev tu cov dej hauv av , ces koj yuav tsum xyuas seb koj puas yog overfeeding cov ntses. Hauv qhov no, koj tsis tas yuav pub lawv noj li ob hnub, cov ntses yuav tsis raug mob los ntawm qhov no, thiab qhov seem ntawm cov zaub mov tsis tau noj thaum lub sij hawm no yuav siv tau cov qwj lossis cov kab ciav hlau, thiab cov dej yuav tsum rov qab los. Yog tias koj cov thoob dej yug ntses hnyav dhau lawm, koj yuav tsum xav txog qhov muag cov ntses lossis muab xa mus rau lwm lub thawv.
Qhov feem ntau nyuaj rau tshwj kom txhob lub turbidity ntawm cov dej los ntawm multiplex bacteria thiab microscopic algae. Yuav tsum tau ua tib zoo saib xyuas cov av. Koj hloov tsis tau dej ntawm cov dej mus rau cov dej tshiab, vim tias qhov no yuav ua rau lawv muab cov khoom noj ntxiv. Yog xav hloov dej hauv qhov no, koj tuaj yeem siv dej hauv cov dej hau xwb. Yog tias qhov no tsis ua haujlwm, ces siv Bicillin-5 tov. Nws yog ib qho tseem ceeb rau kev kho mob raws li cov lus qhia rau peb hnub. Tab sis yog hais tias cov dej tseem nyob tsis tau thiab tom qab ntawd, tsis muaj dab tsi tshuav tab sis kom hloov tau cov dej, kom huv si av thiab nroj tsuag. Tom qab kev kho mob li no, cov thoob dej yug ntses yuav tsum khaws cia rau ob peb hnub, yog li ntawd cov dej tau txais cov khoom tsim nyog thiab qhov kub, thiab tsuas yog pib ntawm cov ntses rau hauv.