Mai Montréal a i Kyoto ma Paris, ke ulu nei kahi ʻano hou o ka poʻe mahiʻai kūlanakauhale i nā huaʻai a me nā mea kanu i nā ʻano ʻano hou.
Ua kau ka wānana UN i ka heluna kanaka o ka honua ma 9.7 biliona e 2050 - me 80 pakeneka o lākou e noho ana i nā kūlanakauhale. He nui ka waha e hānai ai. Akā ʻo ka meaʻai no ka hapa nui o ka poʻe noho kūlanakauhale mai nā tausani mile ka mamao. Ma ka moku'āina o US Iowa, ʻo ia ke kolu o ka nui loa no ka hana mahiʻai, 80 ka nui o nā meaʻai i ʻai ʻia ua hele ma mua o 1,900km.
Inā he ʻāpana o nā kūlanakauhale i ka pilikia, pono lākou e lilo i ʻāpana o ka hopena. ʻO ka piʻi ʻana i ka paʻakikī he ʻano hou o nā mahiʻai kūlanakauhale. He ʻokoʻa nā hoʻonā e like me ko mākou mau kūlanakauhale a pili pinepine i ka ʻenehana ʻokiʻoki. 'Pono mākou e ʻike i ke kūlanakauhale ma ke ʻano he ʻano paʻakikī a me nā ʻano hana mahiʻai kūlanakauhale ʻē aʻe e like me nā mea hana i loko o ka pahu hana. ʻAʻohe mea kūpono i nā mea a pau e pili ana i ka hoʻomohala ʻana i nā ʻōnaehana meaʻai kūloko a kūpaʻa, 'wahi a Henry Gordon-Smith, ka Luna Nui o Mahiai, he hui hoʻolālā mahiʻai kūlanakauhale.
Akā ʻaʻole kēia ʻo kāu mau mahiʻai pipi i loko o ke kūlanakauhale o ka wā kahiko. Na Mahiai Lufa in MontrealʻO Kanada, ʻo ia kekahi o nā paionia a kūkulu i nā hale ʻōmaʻomaʻo ma luna o nā hale ʻoihana i hoʻolako ʻia me ka hydroponics, kahi e ulu ai nā mea kanu i ka wai i hoʻonui ʻia i ka mineral.
Ua hoʻomaka ʻia ka ʻoihana e Mohamed Hage, he malihini mai Lebanona, a ke hana nei ʻo ia i ʻehā mau wahi ma Montreal. Ma hope o kona ulu ʻana i kahi kūlanakauhale liʻiliʻi i hana nui i kāna meaʻai ponoʻī, ua hala ʻo Hage i ka ʻono a me ka maikaʻi o nā mea kanu hou, ulu kūloko ma Montreal. 'ʻAʻohe mea e pili ana i ka mahiʻai kūlanakauhale he mea hoʻololi maoli, he leʻaleʻa wale nō ia o kahi mea kahiko loa,' wahi āna.
Hoʻopilikia nā kūlanakauhale i ka hopena 'urban heat island' no ka mea, ʻo nā hale e pani ana i nā mea kanu e hoʻopaʻa a mālama i ka wela - a ʻo ia hoʻi e koi hou aku i ka ea. ʻO ia ke kumu i wela loa ai ʻoe i ke kūlanakauhale, me ka ʻoi aku o ka wela o nā wahi ākea ma mua o nā wahi ʻōmaʻomaʻo. Kōkua nā mahiʻai o ke kūlanakauhale i nā kūlanakauhale 'regreen', hoʻemi i ka mahana, lawe i ka CO2 mai ka lewa a pume i ka oxygen hou.
Aia ʻekolu mau mahiʻai a Lufa ma nā hale i hoʻohana ʻole ʻia ma mua, a ʻo ka ʻehā i hoʻolālā ʻia me ka hale ʻōmaʻomaʻo. He mea maʻalahi ke noʻonoʻo he hāʻule wale kēia i loko o ke kai akā ʻohi lākou i 25,540 kg o nā huaʻai a me nā mea ʻai i kēlā me kēia pule - ʻelua pākēneka o nā meaʻai o Montreal. ʻO ka pūnaewele hou loa ma Ville Saint-Laurent, i kēia manawa ka hale ʻōmaʻomaʻo nui loa o ka honua, ʻo ia wale nō ka hapalua o kēia huina.
Ma ʻEulopa, aia ʻo Paris i ke poʻo o ke kipi, mahalo nui i ka ʻaha kūkā o ke kūlanakauhale. He hawewe wela i ka makahiki 2003 i make ai 14,802 kanaka ma Farani. No ka hakakā ʻana i nā mokupuni wela o ke kūlanakauhale, ua hoʻonohonoho ke kuhina nui o Paris ʻo Anna Hidalgo i ka Parisculteurs e hoʻolālā e hana i 100 mau ʻeka o nā wahi ʻōmaʻomaʻo e 2020, me ke kolu i hoʻolaʻa ʻia i ka mahiʻai kūlanakauhale.
ʻO nā hui i komo i ka mākeke Nature Urbaine, ka mahiʻai ma luna o ka hale nui loa o ka honua, e noho ana ma luna o ke kikowaena hōʻikeʻike Porte de Versailles. E uhi ana i 14,000 square meters, ulu ka mahiʻai i 30 mau ʻano mea kanu a me nā mea kanu, me ka hoʻolimalima ʻana i 140 mau ʻāpana no nā kamaʻāina. Sous les Fraises, ʻo ia hoʻi, e holo ana i ʻeiwa mau hale ʻai ma luna o ka hale e hoʻohua ana i nā mea kanu pono e like me nā hua a me nā hops.
Hoʻopau pinepine nā kūlanakauhale me nā wahi i hoʻohana ʻole ʻia ma lalo o ka honua. ʻO ke ana hoʻohana i kahi kaʻa kaʻa Parisian kahiko. 'He kaua mua ka mahiʻai no ka ʻāina, no laila ʻo ka ulu ʻana ma lalo o ka ʻāina he hopena no ka mea ʻoi aku ka maʻalahi a he nui nā wahi i hoʻohana ʻole ʻia,' wahi a ka mea hoʻokumu ʻo Théo Champagnat. Eia naʻe, koi pinepine ia mau papahana i nā kukui LED e hoʻoponopono i ka nele o ka lā, no laila e hoʻohana ʻia ka ikehu. Ma ke koho pono ʻana i nā mea kanu, ua pale ʻo La Caverne i kēia. 'O ka mahi'ai LED ma lalo o elima pakeneka o kā mākou hana. Ke ulu nei ʻo Chicory i loko o ka pōʻeleʻele a ʻo nā haloʻi e koi i nā kukui liʻiliʻi, 'wahi a Champagnat.
Hiki i ka hana ke lilo i kumu kūʻai nui no nā mahiʻai kūlanakauhale. Akā, ʻo ka ʻōlelo hoʻohiki, ʻoihana Iapana hoolaha aku Ua hana ʻo ia i ka mahiʻai automate nui mua o ka honua, Techno Farm Keihanna ma Kyoto. 'O ka nui o ka ulu 'ana, 'o ia ka pa'akikī o ka ho'opa'a 'ana i nā mea e like me ka maika'i o ka huahana, ka nui a me ka nui. I ka manawa like, pono ka hana paʻa e hoʻohālikelike i nā hana i ke kiʻekiʻe e pono ai no ka automation kūpono, 'wahi a ka waha ʻōlelo o Spread. Hoʻopuka ka mea kanu i ʻekolu mau tona letus i kēlā me kēia lā.
Ua hoʻopiʻi ʻo Automation i nā ʻāpana ʻoi loa o ka hana e pili ana i ka kanu ʻana, ka hānai ʻana i nā mea kanu a me ka lawe ʻana i nā panela mahiʻai. 'Ke manaʻo nei mākou e kōkua kēia i ka hana ʻana i ka mahiʻai ʻoi aku ka maikaʻi no nā hanauna ʻōpio, a kōkua i ka hana ʻana i ka mahiʻai i ʻoihana hoʻomau," wahi a ka mea haʻi'ōlelo Spread. ʻAʻole wale ka lettuce i hana ʻia me ka pesticide-free akā loaʻa pū kekahi i nā manawa he nui i ka pae o ka beta-carotene (he meaʻai koʻikoʻi) o ka letus hau hau maʻamau.
Hiki i nā kānaka a me nā ʻoihana liʻiliʻi ke komo i ka hana ma LA Urban Farms' Kihapai hale kiai. Ke hoʻohana nei i kahi ʻōnaehana aeroponic tower modular, hiki iā ia ke komo i loko o kahi wahi liʻiliʻi e like me ka balkona. 'O ia ka mea e ma'alahi ai ka 'ai 'ana i ka wā e ulu ana ka mea'ai hou ma kou pā hale pono'ī a ma kāu hale'aina no ka mea aia 'oe i ka mana o kāu lako mea'ai," wahi a Wendy Coleman, ka mea ho'okumu. ʻO ia nō ka meaʻai maʻalahi loa.