On the basis of the Investigation (?) the soil types it is found that the soil moisture resources have the characteristics as follows.1. the water holding capability of soil is high and the field capacity of the main soils ranges from 19 to 22 percent

being as the middle and higher level;2. soil water storage keeps lower regime

generally about 60%～88% and 43%～56% of the field capacity;3. the use ration of the soil moisture is lower

the surplus available water in the depth of 0～5 m varies from 413.40 to 463.16 mm;4. a dry horizon of the biological utilization commenly exists in the loessial soils

i. e.

temporary or permanent dry layer.According to the analysis of soil moisture regime

some measures improving soil water conditions have been suggested in this paper.