Results 121 to 130 of about 35,506 (240)

Green-Down Protocol [PDF]

open access: yes, 2003
The purpose of this resource is to observe plant green-down and report greendown data to help validate estimates of the end of the plant growing season. Students monitor the change in color of selected leaves of trees, shrubs or grasses.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Możliwość zastosowania gatunków obcego pochodzenia w rewi-talizacji obiektów zabytkowych na podstawie występowania drzew pomnikowych

open access: yesAnnales Horticulturae, 2019
W pracy przedstawiono skład gatunkowy, ilościowy, rozmieszczenie oraz formy ochrony drzew w woj. lubelskim. W 2014 r. na terenie województwa było zewidencjonowanych 1413 pomników przyrody. W tej grupie znajdowały się pojedyncze drzewa, grupy drzew, aleje
MARGOT DUDKIEWICZ   +5 more
doaj  

DYNAMICS OF PECTIN CONTENT IN LARIX SIBIRICA AND LARIX GMELINII BARK

open access: yeschemistry of plant raw material
The variability of pectin substances content in the bark of Siberian larch (Larix sibirica Ledeb.) and Daurian larch (Larix gmelinii (Rupr.) on the territory of Middle and Eastern Siberia was studied. The content of pectins in the barks of Siberian larch and Daurian larch at a height of 1.3 m averages 4–5%. The bark of the whole tree trunk contains 8–9%
Galina Vasilyevna Permyakova   +1 more
openaire   +1 more source

Did belowground N transfer in mixed plantations of Acacia mangium and Eucalyptus meet the Stress Gradient Hypothesis? [PDF]

open access: yes, 2019
Belowground interactions in mixed forest plantations remain poorly understood as that of short-tenn nitrogen (N) transfer from N-fixing trees to non-N-fixing trees (Non-NFT) depending on nutrient availability. We investigated in this facilitation process
Amaral Guerrini, I.   +7 more
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On the variation of leaf border in Rhizomnium (Cinclidiaceae) [PDF]

open access: yes, 1996
In the genus Rhizomnium T. Kop. most taxa have a strong leaf border several cells broad and bi- to tristratose. Rhizomnium striatulum (Mitt.) T. Kop. belongs to that group. In Northeast China one population of R.
Buck, William R., Koponen, Timo
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Structure and Dynamics of Tree Stands at the Upper Timberline in the Western Part of the Putorana Plateau [PDF]

open access: yes, 2019
Analysis of the age structure of Dahurian larch (Larix gmelinii Rupr.) forests in the western part of the Putorana Plateau (Sukhie Gory Range) and comparison of diachronous topographic maps and satellite images have revealed changes in the altitudinal ...
Devi, N. M.   +6 more
core  

Larix leptolepis [PDF]

open access: yesForstwissenschaftliches Centralblatt, 1907
openaire   +1 more source

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