Litterfall carbon cycle in pine stands growing in the Central Siberian subtaiga forest-steppe zone

Differential plant damage due to litterfall in palm-dominated forest stands in a Central Pacic atoll

High densities of palms are common in many tropical forests. In some cases, the dominance of palms has been associated with a depauperate understorey and high rates of native seedling mortality. A variety of different potential mechanisms has been suggested to explain the sustained palm dominance in the understorey and canopy of these forests. Working in a Cocos nucifera-dominated wet tropical ...

Carbon accumulation in Colorado ponderosa pine stands

Woody encroachment and thickening have occurred throughout the western United States and have been proposed as important processes in the US carbon (C) budget despite large uncertainty in the magnitude of these effects. In this study we investigated ponderosa pine encroachment near Boulder, Colorado. We reconstructed a time series of forest structure to estimate changes in C storage by the tree...

the u.s. policy in central asia and its impact on the colored revolutions in the region (the case study of tulip revolution in kyrgyzstan)

چکیده ندارد.

the place of iranian public diplomacy in central asia

چکیده: نسبت به کارکرد و ماهیت دیپلماسی عمومی در جهان امروز نظریه های متعددی بیان گردیده و جایگاه آن در کنار نظریه های دیگر در محافل آکادمیک و دانشگاهی بررسی و تحلیل گردیده است. نظر به اهمیت دیپلماسی عمومی و جایگاه آن در سیاست خارجی ایران این نوشتار با تمرکز بر دیپلماسی عمومی در منطقه آسیای مرکزی تهیه و تنظیم شده است. این ضرورت از آنجا ناشی می شود که اولاً مفهوم دیپلماسی عمومی در سیاست خارجی ای...

Siberian Pine Decline and Mortality in Southern Siberian