نوع مقاله : علمی - پژوهشی
نویسندگان
1 عضو هیات علمی دانشگاه ملایر
2 دانشجوی کارشناسی ارشد جنگلداری، دانشکده منابع طبیعی و محیط زیست، دانشگاه ملایر
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The space-for-time (SFT) approach provides the possibility of comparing leaf litter decomposition. In the present research, by using this approach, the decomposition rate of leaf litters in three tree species was carried out in three altitude classes. In this study, litter bags were collected at intervals of 30, 60, and 180 days and the decomposition rate of leaf litters were measured. The results showed that in the studied time periods, litter type, height above sea level (except for the period of 180 days) and the interaction effects of litter type and height had significant effects on decomposition rate, so that increasing the altitude above sea level has led to further decomposition process. ]n the period of 30 days, the highest amount of decomposition related to the combined treatments of Celtis australis (Celtis australis+Pistacia atlantica) and Quercus brantii (Quercus brantii + Celtis australis) (14.61% and 14.40% respectively) in height 1050 meters and the lowest was related to the treatment of Pistacia atlantica (4.52%) at the height of 750 meters. Also, at the end of the incubation period, the highest amount of decomposition rate belongs to the combined treatment of Celtis australis (Celtis australis+Pistacia atlantica) at the height of 1050 meters (16.12%) and the lowest is related to the pure leaf litter of Pistacia atlantica at the height of 750 meters (10.12%). In general,, it was found that after 180 days , increasing the height above sea level alone did not have a significant effect on the decomposition rate of leaf litters.
کلیدواژهها [English]
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