(Floristic and vegetation structure of a granitic grassland in Southern Brazil). A floristic and structural survey of a natural grassland community was conducted on Morro do Osso, a granitic hill in Porto Alegre, RS, Brazil. Structural data were surveyed in 39 one square meter plots placed over two major grassland areas. An accidental fire has occurred in one of the areas approximately one year...

Growth and productivity of plants are mainly affected by various environmentalfactors in different ecosystems and natural habitat in the world. This research aims to studythe existing relationships between the phytosociology characteristics of Thymuskotschyanus and environmental factors in order to find the most important factorsgoverning development of the species in middle Taleghan rangelands...

Recognizing the herbaceous plant species diversity could use as an importantindicator applied for the rangeland and forests management. Considering the presence ofvegetation and animal husbandry in Zagros region, Iran, being aware of the diversity andrichness of plant species is necessary to management or the destructed vegetationrestoration. In order to study the effect of aspect and elevation...

more than half of the area of the country are rangelands. implementing the principles of proper rangeland management and optimal use of rangeland requires proper stock grazing management. considering the quality and quantity of forage plants, palatability and preference value of species and rates of species utilization are information needed for proper management of livestock grazing in rangela...

Long-term effects of Lupinus lepidus on vegetation dynamics at Mount St. Helens by Roger del Moral & Lara Rozzell Abstract: The nitrogen-fixing legume Lupinus lepidus is the most abundant herb on recently formed volcanic surfaces at Mount St. Helen. We compared vegetation structure in 30 Lupinus colonies in three age classes (old, mature, or young based on known years of their establishment) to...