abstract. the purpose of this study was to investigate the effects of topographical factors on the classification of grassland plant communities in the rangelands of ghorkhud, northern khorasan province, iran. for sampling, land units were specified. a floristic list was prepared using minimal area method based on the nested plot (braun-blanquet method). 116 10m2 furrows were selected. within e...

Abstract. The purpose of this study was to investigate the effects of topographical factors on the classification of grassland plant communities in the rangelands of Ghorkhud, Northern Khorasan Province, Iran. For sampling, land units were specified. A floristic list was prepared using minimal area method based on the nested plot (Braun-Blanquet method). 116 10m2 furrows were selected. Within e...

Recent evidence associates the persistence of invasive plant species with disturbance and fluctuations in distinct forms of mineral N in soils. We conducted soil and hydroponic experiments to investigate the influence of N form and availability on germination and seedling development of 2 invasive annual grasses, cheatgrass (Bromus tectorum) and medusahead (Taeniatherum caput-medusae) and 6 per...

Abstract. Scientific novelty and practical significance. The increasing rates of soil degradation processes in the southern regions Russia make it urgent to increase productivity agricultural land, stabilize ecosystems restore potentially valuable forage vegetation. Phytomeliorative reconstruction low-productive lands is great importance for ensuring sustainable development region national food...

In arid areas, it is necessary to apply phytomelioration widely create an organized, stable and ecologically well-maintained forest–agrarian landscape in which agricultural lands can provide diverse products, optimum ecologyfor the existence of a natural anthropogenic system. The aim this work select shrub herbaceous plant species for restoration degraded zone European part Russia with prospect...