نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مرتعداری، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، نور، ایران.
2 بخش تحقیقات جنگلها، مراتع و آبخیزداری، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان ایلام، ایلام، ایران.
3 گروه علوم و صنایع چوب و کاغذ، واحد کرج، دانشگاه آزاد اسلامی، کرج، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Different composition of vegetation can have significant effects on the variability of soil characteristics. Therefore, the present study was aimed to reveal the effect of the canopy composition of shrub species on soil quality indicators. The different characteristics was studied for the litter and the soil covered with a mix of four shrubs species (Crataegus nigra, Berberis integerrima Bunge, Ribes Uva – crispa L and Prunus spinosa L.), three species (Crataegus nigra, Berberis integerrima Bunge and Ribes Uva – crispa L.), two species (Crataegus nigra and Berberis integerrima Bunge), shrub cover with the predominance of Berberis integerrima Bunge. and Crataegus nigra. For this purpose, in each of the habitats studied, 3 sample plots of one hectare were selected with at least 600 meters distances, and in each sample plot, 5 samples of litter and soil were collected, and a total of 15 samples of litter and soil were collected from each habitat. The results showed significant effects of different Composition of vegetation on most litter and soil characteristics; so that, the highest carbon to nitrogen ratio of litter belongs to the habitat with predominance of Berberis integerrima Bunge (24.46). The results of principal component analysis showed that the habitats with high soil fertility and biological activity belonged to the canopy composition with four species. The results of this research indicate that the composition of vegetation with four species can maintain soil quality.
کلیدواژهها [English]