Stemflow is a hydrological processes which helps rainfall and canopy cover solvents flow down into the soil profile. This research was performed in the bush lands of Isfahan Science and Technology Town (ISTT) in the northwest part of Isfahan city. To investigate stemflow of Pteropyrum aucheri , a shrub specie and Anabasis aphylla , a bush specie? measurements were made on 5 individual plants of each species for rainfall events of time span, April 2013 to May 2014. The measurements were performed using plastic funnel around stems connected to collective bottles. To investigate the nursing effect on the understory plants two treatments were planned, one with collection system and the other without. Lepidium sativum , a quick growing specie, was planted in three parts of crown projection, shading area and open intact area, with a volume of 200 seeds in each parts. Soil samples were taken to a depth of 100 cm at intervals of 20 cm to investigate moisture, organic matter, texture, pH, Ec, and stability for both of the species for 10 rainfall events. Fogging system was used to compare natural and synthetic data and also examine some of effective factor in production of stemflow such as height and crown cover. The analysis showed that there is high correlation (R 2 = 0.95) between rainfall and stemflow production in the two species. Stemflow values increase with rainfall depths. The results indicated that the amount of stemflow in P. aucheri averaged 18.5% of incident gross rainfall with a range of 11–24%, while in A.aphylla stemflow averaged 13.4% with a range of 12–23%. The average funneling ratio was 39.9 and 29 for P. aucheri and A. aphylla , respectively, indicating that branches and stems were fully contributing to stemflow generation. Amount of moisture, organic matter and MWD showed significant difference (?= 0.05) between treatment of with stemflow input with treatment without stemflow input and bare soil in the two species of A. aphylla and P. aucheri to depth of 80 and 100 cm respectively. PH changes at different depths in the two treatments and bare soil was not significant. A. aphylla ’s pH showed slight increase in comparison with P. aucheri and bare soil. Ec amounts indicate higher salinities in stemflow treatment which emphasizes the leaching effect of stemflow. Extension of nursing effect of stemflow was 10 and 7 cm in P. aucheri and A. aphylla respectively. Synthetic stemflow variations related plant height and canopy cover significant (?= 0.05) which shows that the effect of these parameter on stemflow is very high. Variation of moisture, organic matter, stability and Ec in the soil profile emphasize that stemflow improves leaching and concentration of water and nutrients in lower depth soil and strengthen nursing. Keywords : Stemflow, Anabasis aphylla, Pteropyrum aucheri, Nursing effect, Isfahan, Synthetic stemflow