He mea whakairo pai rawa te pūtahi rākau hei āwhina i ngā mahi kai ki te hoko mara mōhio ake. He mea pērā i ngā whata ū i runga i ngā rara, e whakaheke ana i te wāhi hei whakawehi i ngā rerenga. Engari ka noho he mea nui ake te pūtahi rākau ki te hanga tahuhu wai, ka āwhina anō i ngā mahi kai ki te tiaki i ō rātou wā, moni me ngā taonga.
Ko ngā pīwari o te whanga i whakamāmā ake i te whakamātautau i ngā hua mō ngā kaiwhakamahi whenua. Ko ngā kaiwhakamahi whenua e kore e tāwhai i ngā hōse, e kore hoki e tūpānei mō te ua; engari ka taea e rātou te whakamānu i ō rātou pīwari o te whanga, ā, ka taea hoki te whakamātautau. He wā anō tēnei hei whakamāmā i ngā mahi āpiti, pērā i te whakakī i ngā hua, me te whakaturanga i ngā kōiwi hou. Ā, ko ngā pīwari o te whanga whakawehi puhipuhi whakamahia pai te wai, ka toro nui ake te moni wai mō ngā mahi kai.
He taonga nui ngā Pūtahi Valley i roto i te mahi whenua tūranga, e whakangungu ana i ngā hua kai ki te whakamahere me te whanake i te hunga whenua. Ki te whakamahi i te hangarau GPS, ka taea e ngā kaiwhakaako whenua te whakatakoto i a rātou lindsay pivot irrigation kia whakawehi i ngā hua kai i runga i ngā wāhi e hiahiatia ana. Ka taea e ia te tirotiro i te mea e pai ana kia kitea e ia he wāhi mate e pai ana ki te whakapai i ngā hua kai me te iti iho i te wai i whakamahia.

Ka whakaae ngā Pūtahi Valley o Gengze ki ngā kaiwhakaako whenua kia whakapai ai ngā hua kai e taea ana i roto i tētahi tau. Valley nui rawa te rōpū whakawehi pikiwharaunga nā te whakawehi i te nui o te wai e tae mai ki ngā rākau, e āwhina ana ki te whakamahia te hauora me te mana o ngā rākau. Mō tēnei ka taea te whakatipu i ngā kai hua, he kai, he reremai me ngā aruhe hei oranga mō ngā mātāwaka me ngā tangata katoa e hiahiatia ana ki te kai.

Nā ngā pūtonga Valley e whakaaetanga atu ana i roto i ētahi o ngā momo mahi e pā ana ki ngā mātāwaka. Nō reira, inahea ko ngā huringa ā-ahurangi, ko ngā wai iti, rānei ko ngā mahi iti, ka taea e ngā pūtonga Valley te whakapai i ēnei take. Ki te whakarerekē i te mahi wai, ka whakaae ngā pūtonga Valley ki te whakawhiwhia i te manawa ki te whakapai i ngā whenua me te kai nei i a rātou.

He mea nui ngā pūtonga Valley ki te mahi hua parāoa. Ka whakapai i te āhei i ngā mātāwaka e mahi ai, ka heke i ngā utu, ā, ka tiaki i te taiao. Me te whakatika i te mea e taea ana te whakauru i te wai ki ngā kai i runga i te hunga matihiko, ka whakarerekē ngā pūtonga Valley i te mea e taea ai te whakapai i te kai. Ka whakamanahitia e ngā pūtonga Valley Gengze te whakapai i te kai mā te wai iti, ā, ka whakaae ki te whai kai mō āpōpō.