نتایج جستجو برای: snags

تعداد نتایج: 275  

2017
P. CHARLES GOEBEL DAVID M. HIX

Less than 1% of the pre-European settlement forest in Ohio currently remains, mostly as small and scattered woodlots. Consequently, few studies have been undertaken to quantify the composition and structure of Ohio’s old-growth forests using a landscape ecosystem perspective. We used an existing multifactor ecosystem classification system developed for the Wayne National Forest in southeastern ...

Journal: :International Journal of Health Sciences (IJHS) 2022

The requirement for carrying out solid information move in remote sensor networks is as yet an open issue the examination local area. Despite fact that bunch directing plans are described by their low upward and productivity customary organization, this potential still to be used reasonable choices climate with deterrents voids, through voracious border sending. In paper, original Grid-Based Re...

Journal: :Forests 2023

Recent drought-induced dieback alters forest dynamics, which are also shaped by past management. In western Pyrenean silver fir (Abies alba) stands, concurs in space and time with the legacies of management, but impacts on growth, structure composition unknown. We aim to disentangle how interacts human use modulates recent dynamics forests. To this end, we sampled eleven forests across wide cli...

Journal: :Canadian Journal of Forest Research 2022

Large wood (LW) is an important structural feature in forested lake ecosystems but little known about its production and movement across the forest-lake ecotone. We describe LW creation at 8 small (<30 ha) lakes Ontario, Canada. The of snags through live tree death ranged from 0.24% yr-1 to 5.60% yr-1. Snag breakage was correlated with snag height, fall described as a function species, decay...

Journal: :Forest Ecology and Management 2021

Changing economics in the 20th century led to losses and fragmentation of semi-natural woodland Britain a reduction active management with many becoming increasingly neglected, even-aged closed canopy. Lack is known contribute declines some taxonomic groups, for example birds. However, response bats changes structure are poorly understood. We compared two measures bat activity, derived from sta...

Journal: :محیط زیست طبیعی 0
مونا اسماعیل پور دانشجوی کارشناسی ارشد محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، کرج، ایران محمد کابلی گروه محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، کرج، ایران محمود کرمی گروه محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، کرج، ایران افشین علیزاده شعبانی گروه محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، کرج، ایران آزیتا فراشی گروه محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه فردوسی مشهد، مشهد، ایران

increasing patch edges in natural habitats, as a result of habitat fragmentation, are a major threat for wildlife populations, especially avifaunal communities. habitat edges provide different conditions compared to the core area which can directly or indirectly cause changes in species number, population and composition. this fact will demand a dissimilar management strategy. this study was co...

Journal: :IEEE Access 2022

Internet of Things (IoT) is the paramount virtual network that enables remote users to access connected multimedia devices. It has dragged attention community because it encompasses real-world scenarios with implicit environs. Despite several beneficial aspects, IoT surrounded by provocations for successful implementation, as data travels in different layers. One critical challenges security th...

Journal: :Agriculture 2021

The production of ‘Premium’ olive oil depends in large part on the quality fruit. Small producers see themselves confronted with vast investments and logistic snags when they intend to optimize harvesting. Today, manual harvesting devices promise less damaged fruit compared traditional methods nets while use a cooling room farm is suggested as solution needs be stretched out over several days. ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید