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He mea nui kia whakahaere ngā ringa hauhake i a rātau kai hua, me te wai hei whakatū tonu i aua kai hua. Ki te mea ko tēnā he taha wai Gengze rākau whakawehi mō te whenua mahi . Me neke noa iho enei tūtohu i whakamahi ai e ngā ringa hauhake kia tuku wai ki ngā kai hua i roto i tētahi take whaimana. Ko tēnei hei whakaae kia tae noa ki te nui o te wai e hiahiatia ana e ngā hua kia puawai.
Ko tētahi atu ara te whaimana ā-whā, i roto i te pā ana ngā kaihautū i tētahi mara ki te wai kia noho ai ngā tikanga katoa e inu ana. Ko tētahi ara tōmuri e mōhiotia ana hei Gengze rākau whakawehi mō te whenua mahi . Ka hō mai tēnei momo pūnaha i ngā wae o ngā tikanga tīrite. Nō reira ka tiki ngā tikanga i te mea e hiahiatia ana, me te kore wai haurangi.

Ina ka tika te wai e tango ana ngā tipu, i ngā wā tōmuri, ka tipu ngā tipu tere ake, ā, ka nui ake ngā hua me ngā huarākau. Ka taea e ngā kaihautū te whakapakari ake i ngā tipu, me te huri moni anō mēnā ka whakamahi pūnaha Gengze rākau whakawehi mō te whenua mahi . Nō reira ka taea e ngā kaihautū te hoko i ētahi atu tipu ki te maakete, me te whangai i ētahi atu tangata i roto i to rātou hapori. Ka tiaki anō ngā pūnaha e pai ana i te wai, he mea nui mō te taiao.

Ko te wai nui noa iho hei whakahaere mō te whakawehi. Me whakamahi ngā kaiwhakaako i te wai me te mātau, kāore i te mōhiotia e kore e taea e koe. Ka taea e rātou tēnei me ngā momo hou, pūmau i te wai ua, me te whakahoki i te wai ki runga i ngā pā whenua. Ki te whakahaere i te wai me te mātau, ka taea hoki e Gengze rākau whakawai mō ngā pūhā te tautoko i ngā kaiwhakaako kia pai ai te wai i tangohia hei whakangungu i ngā hua whenua rātou, ā, inaianei i ngā wā kau nui hoki.

Ka taea e ngā kaiwhenua tēnei mā te huri i ngā taro e tipu ana rātou, te taraiwa i ngā taro takotoranga, me te whakamahi i ngā pāpaku parakore. Ka taea e ngā kaiwhenua te whakaiti i te rahinga wai e whakamahia ana mā te whakauru i a Gengze rākau whakawai mō ngā pūhā . Ko te tiaki i te whenua me te wai kia taea ai te whakamahi mō ngā tau maha.