MapangidweSayansi

Madzi World

Zomveka ntchito ka madzi ndi limodzi mwa mavuto zofunika kwambiri zachilengedwe. Kukula kwambiri ulimi, opanga makampani, chuma chonsecho, kukula kwa mizinda n'zotheka pokhalabe ndi kukula m'matangadza. Mu malo oyamba lero pakati pa anthu ndalama pa chitetezo chikhalidwe ndi ndalama kusunga khalidwe la madzi abwino. Mtengo okwana nkhokwe zake kuposa mtengo wa mtundu wina uliwonse wa feedstock ntchito nthawi zambiri.

Mu ndondomeko ya kusintha bwino zachilengedwe ndi khalidwe chuma chofunika madzi. M'pofunikanso chiwerengero cha iwo. Monga ulamuliro, ntchito iliyonse pa chikhalidwe cha kusintha kukuchitika okhudzidwa ndi yaikulu chuma madzi digiri ina.

Ndi kukula mofulumira mowa zachuma "gidrozapasov" intensively kumawonjezera. The mowa kwa zaka zisanu ndi zitatu kapena khumi amawonjezera. Pa nthawi yomweyo chinawonjezeka ndi mlingo wa poizoni. Choncho, zinthu za m'madzi pang'onopang'ono akuwononganso.

Buku okwana hydrosphere ndi okwanira. A mbali yaing'ono ya m'buku lino (pafupifupi awiri pa zana) amapanga madzi. Iwo yopindulitsa anthu.

Zofunika kwambiri, zisanawonongeke ndi nyanja, mtsinje, chuma nyanja njira imodzi kapena m'magulu ena a zachuma. kufunika Wamkulu komanso mobisa ndi mumlengalenga chinyezi, ayezi kumalo ozizira ndi malo okwezeka. Motero, pafupifupi onse zigawo hydrosphere (kupatula mchere madzi ndi zotsalira zazomera) amaonedwa magwero "gidrosyrya". Komabe, phindu lalikulu kwa anthu madzi (nyanja, mtsinje, pansi). Iwo ntchito zaulimi, ndi mafakitale ndi zoweta dera. Mtsinje, nyanja ndi pansi magwero amaonedwa kukhala kwambiri mosavuta, zikhoza ankalamulira. Komanso, mu dongosolo limene pali mosalekeza kusinthidwa.

Anthu sagwiritsa ntchito madzi abwino kusungidwa mu oundana. Lero, munthu amagwiritsa peresenti n'komwe buku okwana hydrosphere lapansi. Malinga ndi akatswiri, pali kuopseza osati kwa dera komanso kusowa lonse la madzi zofunika zachuma ndi banja.

Zoonekeratu n'chakuti chuma madzi chingathandize, kukopa anthu ambiri zigawo zonse za hydrosphere lapansi. M'dera lino, ntchito yogwira zikuchitidwa ndithu bwinobwino. Choncho, ena madera a desalination madzi nyanja ikuchitika, njira zithandize amadza madzi ali m'mlengalenga. Komanso, ambiri zimakhudzidwa nkhokwe mobisa. Pamodzi ndi zolinga izi zili pansi ntchito madzi, zamzitini mu oundana.

Tikumbukenso kuti mbali yofunikira kwambiri ya "gidrosyrya" si wogawana anagawira kudutsa dziko lonselo. Ambiri resourced mobisa ndi runoff imatengedwa lamba yamphamvu. Makamaka ochuluka unali woyendera nthambi ya Africa ndi South America. Mbali zimenezi chifukwa cha pakati pa twente-faifi mpaka fifite zikwi kiyubiki mamita wa mtsinje n'komwe za khumi ndi twente-faifi zikwi kiyubiki mamita a pansi runoff pa munthu pa chaka. National Water Resources subtropical mayiko a zone kum'mwera kotentha ndi zotentha za Europe ndi ku Asia ndi buku kakhumi ang'onoang'ono. Bwino wotetezedwa m'nkhani Arabia, Afghanistan, ndi Sahara, kum'mwera kwa Asia Central. Hafu ya kumpoto subtropical ndipo zone kotentha ali avareji kupezeka madzi. Apa, voliyumu ya okwana otaya kuposa kiyubiki mamita twente-faifi sauzande pa munthu pa chaka. Mu kumpoto cha kum'mawa kwa Russia, komanso madera kumpoto kwa kupezeka madzi Canada ndi zoposa zikwi zana kiyubiki mamita chiweruzo runoff pa munthu pa chaka. Pa malo apadera ndi Australia. Ngakhale kuti lonse la Africa ndi yaing'ono madzi okwanira, zizindikiro za limapezeka pafupifupi madzi ndi apamwamba kuposa pafupifupi phindu lonse.

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