▁The ▁p addy ▁field ▁feature ▁was ▁found ▁next ▁to ▁a ▁pit - house ▁that ▁is ▁dated ▁to ▁the ▁latter ▁part ▁of ▁the ▁Early ▁M um un ▁pot tery ▁period ▁( c . ▁ 1 1 0 0 – 8 5 0 ▁BC ). ▁K UM ▁has ▁conducted ▁exc av ations , ▁that ▁have ▁revealed ▁similarly ▁dated ▁p addy ▁field ▁features , ▁at ▁Y ae um - d ong ▁and ▁Ok h ye on , ▁in ▁modern - day ▁U ls an . ▁ ▁The ▁earliest ▁M um un ▁features ▁were ▁usually ▁located ▁in ▁low - lying ▁narrow ▁g ul lies , ▁that ▁were ▁naturally ▁sw amp y ▁and ▁fed ▁by ▁the ▁local ▁stream ▁system . ▁Some ▁M um un ▁p addy ▁fields ▁in ▁flat ▁areas ▁were ▁made ▁of ▁a ▁series ▁of ▁squares ▁and ▁rect angles , ▁separated ▁by ▁bund s ▁approximately ▁ 1 0   cm ▁in ▁height , ▁while ▁ter rac ed ▁p addy ▁fields ▁consisted ▁of ▁long ▁irregular ▁shapes ▁that ▁followed ▁natural ▁cont ours ▁of ▁the ▁land ▁at ▁various ▁levels . ▁ ▁M um un ▁Period ▁rice ▁far mers ▁used ▁all ▁of ▁the ▁elements ▁that ▁are ▁present ▁in ▁today ' s ▁p addy ▁fields , ▁such ▁as ▁ter rac ing , ▁bund s , ▁can als , ▁and ▁small ▁res er voir s . ▁We ▁can ▁grasp ▁some ▁p addy - field ▁far ming ▁techniques ▁of ▁the ▁Middle ▁M um un ▁( c . ▁ 8 5 0 – 5 5 0 ▁BC ), ▁from ▁the ▁well - pres erved ▁wooden