Abstract:By selecting several control experiments of cultivation of reed from several different commonly used soils in restoring Ningxia Plain wetland,we obtained the performance characteristics of reed growth and photosynthesis to different soil environments.The results showed that:(1)Under different soil conditions,there were significant differences in plant height,leaf area,plant diameter,biomass,and the value of each ecological characteristics of peat soil organisms are the largest.(2)Reed photosynthetic parameters Pn,Gs,Tr showed the same trend,namely peak at 10:00,with the obvious ‘lunch break’ phenomenon,the changes of Ci value is the opposite.The effect on the photosynthetic performance of different types of soil reed is peat soil>swamp soil>situ soil>sierozem>sand,and it displays the strongest effects on photosynthesis reed peat soil.(4)By the path analysis and stepwise regression analysis of the reed biomass and soil factors and net photosynthetic rate Pn,the results showed that:soil SOC and soil TN determined reed biomass,and is the most important factor.The determined factor to affect reed net photosynthetic rate is soil TN,soil SOC and soil TP,while TS is the limiting factor.(5)Reed is a typical aquatic plant,higher water requirement,peat soil is nutrient and its water conservation is particularly high,and therefore,peat soil is the most suitable soil type for reed growth.