Considering today's economic and health importance of medicinal plants and fodder plants and development of therapeutic attitude in the world, the ecology of the plants has a special significance.
Identify, introduce and ecological needs of plants in order to optimize the use and management of these God-given resources is imperative and necessary Survey.
The study area located in the West of Tehran province. Halejrd nearest point in the West Village housing and the city of Karaj city Savojbolagh East lead layer is located. This area has the coordinates 59 50_ 50 50 eastern longitude52 35_ 59 35 north latitude, distance from Tehran area is about 50 km. The design work was based on ecological units and 16 units identified the land and plant a total of five brigades and their range and type marked on the map based on the dominant species was named.
Per unit of plant production, plant density was determined List Floristic. Measure physical and chemical properties affect the soil and important for systematic and random in each of the units were studied. After the classified data to analyze the soil properties associated with vegetation changes, the main component analysis method was used.
To identify essential components of medicinal plants producing essential oils from plants of the four samples and then collect their essence, the percentage and its constituent compounds were studied. Essential ingredients apparatus GC / MS were analyzed. Four aromatic plant species composition and percentage of extract they were identified mainly.