He pūnaha nui ngā whakahaere wai i te maruwhenua, e awhina ana i ngā mōkai whenua ki te whakahokia i te wai ki ngā rākau i te ara rahitanga, me te matau. E taea ana e tēnei pūnaha e whakaiti atu wai, e puta mai enei kai, me te whakapakari i te mahi whenua. Ki te ao nei, ka mārama tātou ki nui rawa te rōpū whakawehi pikiwharaunga me te mea e awhina ana i ngā mōkai whenua ki te puta mai i te kai iti noa iho, ahakoa te whakaiti i te wai.
Ko te wai he mea hira i a katoa ngā mea kikino, ina whakaaturia ngā raupō. I ngā wāhi dāru, heoi anō te nui o te wai. Ko tēnā te mea nui o ngā reta ā-pūtahi whakapīwai a Gengze! Ko ēnei reta he whakaatu i te whakamahere mō te whakamahinga pai o te wai, whakaputuaina ki ngā kai i te wā e hiahiatia ana te wai. Ko tērā he whakaiti wai i runga i ētahi atu momo, pērā ko te whakaputuaina i ngā whenua. Ki te whakamahia mai he iti rawa atu te wai, ka puta ake i te nui o ngā kai me te whakahaere pai i te taiao.
Nga kai e tae ana ki te mīhini tika o te wai ka turituri me te hauora. Nā ngā pūnaha whakawehi ipu kēmu i whakaae ki ngā ringaringa mahi kai kia tuku i te wai i runga i ō rātou kai hei whakatipu. Ka whakaheke ēnei pūnaha i te matawhamahara me te wai i te whenua katoa i raro iho. Ko tēnei he whakamana kia kitea e ia te wai hei whakapai, hei hanga ika me te hua kai nui, pai utu.
He maha ngā paunga nui o te whai i ngā pūnaha whakawehi ipu kēmu mō te pā. He tētahi paunga nui ko te mea ka tukuna e ia ngā ringaringa mahi kai kia mahi i ēnei wā. Ki reira kaore i tae noa i te tae wai i ēnei kai ki runga i te ringa, kaore hoki i te kawe i ngā pū maihi nui, ka whakahaua e te te whakahaere wai porowhita rohe rito me haere atu. Ko tēnei he whakaae kia mahi tonu i ēnei mahi matua kē o te pā.
Ka taea hoki e ngā kaihākonga te whakawehi i te maha o ngā kai i runga i te whenua e rite ana, he taumata atu anō. Whakatūhia te wai e ēnei nei mātātaki ki ngā tāwhāiti mā te whakamahi i ngā rārangi wai ki te whakarite i te wai mo ngā tāwāhi kai. Ki te whakapai i te nui o te kai i whakatūhia, ka whakaritea e ngā mātātaki whakawehi tuatoru Gengze i te wai ki ngā tāwhāiti me te nuinga o te wai. He mea nui tēnā i ngā wāhi e hīkohiko ana i te whenua pai, me te wai.
Ko te mahi whenua he whakaaetanga i te whanaketanga. Kua hangaia ngā mātātaki whakawehi tuatoru Gengze hei whakamahere i te whanaketanga, e ai ki reira ka whakamahia e rātau iti rawa atu te wai me te iti rawa atu huarahi i ēnei kaupapa. Ka whakariteritea ngā rārangi nei ki te whakauru i te wā e piki ai te wai i te wā e hiahiatia ana e ngā tāwāhi kai. Ko tēnā pūtahi vāhine ka whakaitihia te moni mō ngā pāmu ki te wai, me te whakapai i ngā rawa.
Kei te whakarerekē tonu te hunga matatika me ngā whakahaere wai a Gengze. Nūhiti ā-roto, kāore ngā raraunga nei i te whakakore i aua whakahaere. Hei tauira, kei roto i ētahi raraunga, he mīhini e taea ana ki te takiwātia te wheako wai e hiahiatia ana e ngā mahinga, ka whakatika ki te wai i tērā. Ko tēnei te mea e taea ai e ngā mōkai whenua e whakaiti atu wai me te whakapakari i ngā rākau hirawea.