; One of the appropriate methods to reduce arid area, is identifying the potential of these areas, and by using these potential properties, introduces suitable species to reduce these areas. Native plant societies are accounted as a constant ecosystem. One of the native species of country pastures is Pteropyrum aucheri . These small shrubs usually grow in arid and semi-arid areas. Since there is no research about Aut-ecology Pteropyrum aucheri species in Isfahan province, this research seems necessary. This study consists of three parts as follows: 1) Germination experiments, 2) Studying the place of growing Pteropyrum aucheri ,3) Phonology studies. In germination studies, these experiments were done: 1) Pteropyrum aucheri breaking Seed dormancy experiment: in this experiment, 16 treatments were performed to cleave seed dormancy and finally a suitable method was determined for it. 2) An experiment to determine the resistance to dryness in the time of seed germination: in this experiment, effect of different levels of dryness, two seed population and mutual effect of dryness, and two populations in seed germination quality were studied. 3) An experiment to determine the effect of salinity in germination and growth of Pteropyrum aucheri . 4) Seed culture in Culture trays. Habitat study was done in Seyyed Mohammad Mountain in Isfahan University by making a network in systemic random method. Phonology researches and data record were also done for about 1 year, and finally the results were illustrated by quantity and explanatory characteristics. The results of germination experiments showed that; Pteropyrum aucheri seeds have Chemical dormancy (preventive) and by putting the seeds in water flow, seed dormancy would be overcome. In comparison to the new cut and green seeds, One-year seeds would germinate more. 3) Pteropyrum aucheri seeds can germinate about 9Desi Siemens per meter but salty water will reduce the speed of germination, length of stems and roots and the Alometry Coefficient. 4) Pteropyrum aucheri seeds can germinate in -6 bars, but dryness will reduce the speed of germination, length of stems and roots and the Algometry Coefficient. 5)To culture Pteropyrum aucheri in the vase, you can use soil+dung+sand with 1:1:1: ration, in preliminarily growing, young Pteropyrum aucheri plants need day and night temperatures to grow well and in these conditions, Pteropyrum aucheri seeds germinate well. Phonologic researches show that September is the best time to collect seeds because autumn is ahead and the weather is dry, for the dry weather and light seeds, they will be scattered by wind, so it is better to collect seeds in September. In late autumn and early of winter, because of raining, seeds get wet and fungi grow in them.
