The natives controlled fire on a regional scale to create a low-intensity fire ecology that sustained a low-density agriculture in loose rotation; a sort of "wild" permaculture.
ðə nˈeɪɾɪvz kəntɹˈoʊld fˈaɪɚɹ ˌɔn ɐ ɹˈiːdʒənəl skˈeɪl tə kɹiːˈeɪt ɐ lˈoʊɪntˈɛnsᵻɾi fˈaɪɚɹ ɛkˈɑːlədʒi ðæt səstˈeɪnd ɐ lˈoʊdˈɛnsᵻɾi ˈæɡɹɪkˌʌltʃɚɹ ɪn lˈuːs ɹoʊtˈeɪʃən; ɐ sˈɔːɹt ʌv "wˈaɪld" pˈɜːmɐkˌʌltʃɚ.