Beiqiu Lowland is in a semi-closed area with shallow and saline ground water. Some integrated techniques were introduced to reclaim the area, including transferring water from the outside of the area, irrigation, drainage and conservation with uncovered canals. Therefore, the level of ground water does not go down but the results of reclamation are obvious. The analysis of this phenomenon indicates that irrigation and conservation with uncovered canals ensure the field irrigation and the leaching of salt in the dry season; the cover of crops not only improves the environments of near surface evaporation and salt rising from soil but also effectively controls salt accumulation in root-zone.