Strand characteristics in sieve tubes of some common tree species

PROTOPLASMA ◽  
1965 ◽  
Vol 60 (1) ◽  
pp. 86-93 ◽  
Author(s):  
J. Parker
Keyword(s):  
Tree Species ◽  
Sieve Tubes ◽  
Common Tree

Xylem anatomical and hydraulic drought resistance characteristics of common tree species in hilly areas of North China

2021 ◽  
Vol 41 (1) ◽  
Author(s):  
李泽东，陈志成，曹振，车路平，刘舒文，张永涛 LI Zedong
Keyword(s):  
Drought Resistance ◽  
Tree Species ◽  
North China ◽  
Common Tree

scholarly journals New version of the 3-PG model of biomass production for the most common tree species in European Russia

2018 ◽  
Author(s):  
V.N. Shanin ◽  
P.Ya. Grabarnik ◽  
S.S. Bykhovets ◽  
O.G. Chertov ◽  
M.P. Shashkov ◽  
...  
Keyword(s):  
Biomass Production ◽  
Tree Species ◽  
European Russia ◽  
Common Tree

The relative importance of space compared to topography increases from rare to common tree species across latitude

2018 ◽  
Vol 45 (11) ◽  
pp. 2520-2532 ◽  
Author(s):  
Yue-Hua Hu ◽  
Daniel J. Johnson ◽  
Xiang-Cheng Mi ◽  
Xu-Gao Wang ◽  
Wan-Hui Ye ◽  
...  
Keyword(s):  
Tree Species ◽  
Relative Importance ◽  
Common Tree

scholarly journals Timeline of Leaf and Cambial Phenology in Relation to Development of Initial Conduits in Xylem and Phloem in Three Coexisting Sub-Mediterranean Deciduous Tree Species

Forests ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1104
Author(s):  
Jožica Gričar ◽  
Andreja Vedenik ◽  
Gregor Skoberne ◽  
Polona Hafner ◽  
Peter Prislan
Keyword(s):  
Tree Species ◽  
Leaf Development ◽  
Radial Growth ◽  
Secondary Growth ◽  
Growth Patterns ◽  
Deciduous Tree ◽  
Cambial Cell ◽  
Cell Production ◽  
Sieve Tubes ◽  
Earlywood Vessels

It is unclear how the anticipated climate change will affect the timing of phenology of different tree organs/tissues and thus the whole-tree functioning. We examined the timing of leaf phenology and secondary growth in three coexisting deciduous tree species (Quercus pubescens Willd., Fraxinus ornus L. and Ostrya carpinifolia Scop) from a sub-Mediterranean region in 2019. In addition, we investigated the relationship between leaf and cambial phenology and the onset of the potential functioning of initial conduits, as determined by the completed differentiation process (vessels) or final size (sieve tubes). For this purpose, leaf development was monitored and the microcores of cambium and the youngest phloem and xylem increments were repeatedly collected at 7–10-day intervals during the growing season. The results revealed differences in the timing of leaf development and seasonal radial growth patterns in spring among the studied tree species, depending on wood porosity. We found that cambial cell production started in all cases in the first half of March. However, in ring-porous Q. pubescens and F. ornus, radial growth in the stem occurred more than a month before buds were swollen, whereas in diffuse-porous O. carpinifolia, these two events were detected at almost the same time. The end of cambial cell production occurred earliest in F. ornus (mid-July) and two weeks later also in the other two species. The widest initial earlywood vessels and early phloem sieve tubes were found in Q. pubescens, the narrowest initial earlywood vessels in O. carpinifolia and the narrowest early phloem sieve tubes in F. ornus. This indicates differences in the efficiency of conducting systems among the studied species. This novel approach of studying phloem phenology and anatomy in relation to leaf and xylem development contributes to a better understanding of how different tree species adapt their structure of secondary vascular tissues in response to environmental change.

scholarly journals Uptake Patterns of Glycine, Ammonium, and Nitrate Differ Among Four Common Tree Species of Northeast China

2019 ◽  
Vol 10 ◽  
Author(s):  
Feifei Zhu ◽  
Luming Dai ◽  
Erik A. Hobbie ◽  
Keisuke Koba ◽  
Xueyan Liu ◽  
...  
Keyword(s):  
Tree Species ◽  
Northeast China ◽  
Common Tree

scholarly journals Evaluation of the ENVI-Met Vegetation Model of Four Common Tree Species in a Subtropical Hot-Humid Area

Atmosphere ◽  
2018 ◽  
Vol 9 (5) ◽  
pp. 198 ◽  
Author(s):  
Zhixin Liu ◽  
Senlin Zheng ◽  
Lihua Zhao
Keyword(s):  
Tree Species ◽  
Vegetation Model ◽  
Humid Area ◽  
Common Tree

Litter decomposition of six common tree species at different rainy periods in the subtropical region

2015 ◽  
Vol 35 (22) ◽  
Author(s):  
马志良 MA Zhiliang ◽  
高顺 GAO Shun ◽  
杨万勤 YANG Wanqin ◽  
吴福忠 WU Fuzhong ◽  
谭波 TAN Bo ◽  
...  
Keyword(s):  
Litter Decomposition ◽  
Tree Species ◽  
Subtropical Region ◽  
Common Tree

Vegetation composition on recent landslides in the Cascade Mountains of western Oregon

1986 ◽  
Vol 16 (4) ◽  
pp. 739-744 ◽  
Author(s):  
D. W. R. Miles ◽  
F. J. Swanson
Keyword(s):  
Pacific Northwest ◽  
Tree Species ◽  
Vegetation Cover ◽  
Cascade Mountains ◽  
Vegetation Disturbance ◽  
The Pacific ◽  
Below Ground ◽  
Steep Slopes ◽  
Herb Species ◽  
Common Tree

Shallow, rapid landslides are common events and significant causes of vegetation disturbance in the Pacific Northwest. Landslides remove surface soil and above- and below-ground biomass from steep slopes and deposit them downslope or in streams. Vegetation cover and frequency were sampled on 25 landslides aged 6–28 years in the Cascade Mountains of western Oregon. Landslides sampled were debris avalanches ranging in surface area from 36 to 1287 m2, in elevation from 460 to 1100 m, and in slope from 40 to 173%. The landslides originated in undisturbed forests, recently harvested tracts of timber, road cuts, and road fills. Substrates within landslide areas were separated into five types and the vegetation cover was estimated for each: bedrock, 19%; secondary erosion, 25%; primary scar, 51%; secondary deposition, 57%; primary deposition, 71%. Vegetation cover averaged 51% overall and cover ranged from 7 to 88% among landslide sites. No relation between landslide age and vegetation cover was established. Pseudotsugamenziesii (Mirb.) Franco was the most common tree species overall and dominated all substrates except bedrock, where no single tree species occurred on more than 20% of the plots. Rubusursinus Cham. & Schlecht. was the most common shrub species on all substrates. Anaphalismargaritacea (L.) B & H and Trientalislatifolia Hook, were the most common herb species on all substrates except bedrock, where annual Epilobium spp. were most common.

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