Taputapu pana mō te pae whenua

Ko te tino pai te mōhio o te pehea hopoi nui te raruraru oneone waterlogged ia rangatira o te hoko whare tapa, ngā ki te kei te whenua e te pae i roto i te wahi iti. I roto i tenei take, he tika te pūrere waikeri. He aha te mea te ati mahi wehe ki te houku te taikaha i roto i te rohe tapa tāone? Mākū o te oneone e tika ana ki te nui o te rerenga me te hukarere rewa hanga te ati kari kore anake, engari tika kei ano i runga i te rohe o tona hanganga.

stagnation auroa o te houku arata'i ki te mate o te pangakuti tarutaru, puawai kari me nga rakau hua, kia rite ki hoki te whanaketanga tonu o te pūnaha pakiaka hiahia hāora, i roto i te oneone maku he nei ngā kahore. Hoki whare mākū o te oneone fakamanamanai hoki whakangaromanga o te hanganga turanga, whai wāhi ai ki te whakakitenga o ngā tukanga koiora āhua (pokepokea ai harore, ngā microorganisms) i roto i te whawhe. E arata'i pinepine te tenei ki te mate o ngā āhuatanga waiariki e tika ana ki te tukanga deformation tango wahi i roto i te hanganga o tatau me ngā matapihi.

He aha te whakarato he pūrere waikeri, me aha e reira ona momo? Pana wai - te pūnaha o pipelines me ngā hanganga tautoko e whakaiti manawa whenua nui te wai oneone-pēhanga ranei. Ki tenei mutunga, i raro i te taumata riro o te imiraa i manawa whenua hangaia whakapanga putorino pūwatawata momo ki te tetahi rua diameter i roto i o ratou taiepa. i te pae whakamana pūrere pana e i roto i rua ara matua - te mata (rārangi), me te hohonu.

Hei tango hohoro te wai te taikaha, i hanga nei e ua , me te rewa ka whano ka hukarere, pā te pūrere te pana wai huri noa te whare ara ausia. Hoki te tango o te wai whenua, e te hunga i te hohonu o runga ki te 1700 mitamano e whakamahia e pūrere pana hohonu. Ka taea te ngā ēnei momo e rua o te pana ki te pūnaha kotahi, me te mahi pai i roto i te matatini kotahi. I mua i te mahi i runga i te pūrere, he mea nui ki te whai i te pūnaha waikeri o tātari oneone me inenga infield hōhonu o te wai whenua. Hangarau pūnaha pūrere pana riro ona momo e rua: tuwhera, me te kati.

He pūnaha tuwhera o pūrere tuwhera-awakeri hohonu he utu ohie, me te iti. Kei te mahi ana te reira i roto i te puka o kari rua tuwhera, i roto i ngā take onge ki whakapumautia ngarahu raima, e i te haafifi ki te pūrere horomanga wai (puna pana). I roto i te take atu rite te pūrere horomanga wai whakamahia te Gully, he harotoroto he repo ranei.

Ko te whakamarie teitei me te mauroa i roto i te mahi he kati momo pūrere pana i te wai. Hoki tona tāutanga me te tuatahi keri te awa, te hōhonu o te mea i 700 ki te 1500 mm me te whanui - e kore e iti iho i te 500 mm. I te raro o ngā rua whakaritea onepu kohatu i kurua ranei faaineineraa 100 mm tiketike, a i muri anake e te meatia e whakapanga putorino pana pūwatawata i te tikanga e hanga o uku. Hāngai ki to ratou awhina i hanga te kohinga me te tango o te manawa whenua ki tatau te puna.