Complex sentence: Stones were placed in and around farm land to divert flow for irrigation, water conservation and to reduce run-off, including the use of bordered gardens, reservoirs, check dams and terraced gardening plots-building upon the techniques of the Pueblo II Era.
Split into simpler sentences: Stones were placed in and around farm land to divert flow for irrigation, water conservation and to reduce run-off. This was accomplished through the use of bordered gardens, reservoirs, check dams and terraced gardening plots-building upon the techniques of the Pueblo II Era.