نتایج جستجو برای: aged stand
تعداد نتایج: 232105 فیلتر نتایج به سال:
Periodic regeneration is crucial to creating or sustaining uneven-aged (UEA) stands of loblolly (Pinus tuedu L.) and shortleaf (p echinatu Mill.) pines. Although both species are shade intolerant, they have silvical characteristics that are conducive to natural regeneration in UEA stands. Their seed production is fairly consistent and good, and the wind-disseminated seeds are well dispersed thr...
To determine the prevalence of fear of falling and associated factors among Japanese community-dwelling older adults.Cross-sectional study between 2011 and 2013.Community in which residents voluntarily attended a health examination.We recruited 844 older adults (male, n = 350; female, n = 494) aged 60 to 92 years from among those who presented at the health examination.We assessed fear of falli...
The northeastern forest region of China is an important component of total temperate and boreal forests in the northern hemisphere. But how carbon (C) pool size and distribution varies among tree, understory, forest floor and soil components, and across stand ages remains unclear. To address this knowledge gap, we selected three major temperate and two major boreal forest types in northeastern ...
BACKGROUND Sit-to-stand (STS) performance is often used as a measure of lower-limb strength in older people and those with significant weakness. However, the findings of recent studies suggest that performance in this test is also influenced by factors associated with balance and mobility. We conducted a study to determine whether sensorimotor, balance, and psychological factors in addition to ...
—Saltcedar (Tamarix spp.), a shrub native to Eurasia, is associated with major alterations to wetland and riparian systems in the southwestern United States. Since the 1960s saltcedar has been naturalized in northern states of the U.S. where its growth potential and impacts are not well known. Here, we describe the occurrence, age, size, and relative cover of saltcedar populations in several ri...
The cjfects oftlzree levels cfresidual basal area 140,60, and 80,ft2/rac), rr~uxirnurn dbh (12, 16, and 20 in.) and site index (QO,ft) otr the grvwth qt'loblullvpine {Pjnus taeda L. i srarzds after 5 yyrof uncvcn aycd rilvici~ltrrr.~ were deterwtirzed jrnm plots located irz south Arkansas and tlorlh Z,onisiunir. Lksign~iteci 1ei)eZs of basal area and nzuximlim dbh were...
1J. 1 XI. A child aged years was brought to the out-patients with complaint that he had been unable to stand up for the last six days. On examination, I found that his right lower extremity was paralysed. His thigh as well as leg muscles were affected. Patellar reflexes and ankle clonus were absent. Atrophy of the muscles was not apparent; the skin was slightly colder than on the opposite side;...
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