scholarly journals Geostatistical analysis of spatial variations in leaf traits of woody plants in Tiantong, Zhejiang Province

2016 ◽  
Vol 40 (1) ◽  
pp. 48-59 ◽  
Author(s):  
XU Ming-Shan ◽  
◽  
◽  
◽  
◽  
...  
Keyword(s):  
Woody Plants ◽  
Leaf Traits ◽  
Spatial Variations ◽  
Geostatistical Analysis ◽  
Zhejiang Province

Morphological and physicochemical traits of leaves of different life-forms of various broadleaf woody plants in interior Alaska

2016 ◽  
Vol 46 (12) ◽  
pp. 1475-1482 ◽  
Author(s):  
Tanaka Kenzo ◽  
Ayumi Tanaka-Oda ◽  
Yojiro Mastuura ◽  
Larry D. Hinzman
Keyword(s):  
Woody Plants ◽  
Leaf Traits ◽  
Life Forms ◽  
Leaf Life Span ◽  
Maximum Height ◽  
Evergreen Species ◽  
Interior Alaska ◽  
Temperate Deciduous ◽  
Temperate Deciduous Forests ◽  
Root Symbionts

The morphological and physicochemical traits of leaves are important in terms of plant adaptation to various growth environments, because such traits play central roles in various functions including photosynthesis. We measured the toughness, mass per unit area (LMA), nitrogen content, and δ15N levels of the leaves of different life-forms of 39 broadleaf woody plants in interior Alaska. The plants were divided into three life-forms based on the maximum height of adult plants: understory (<1 m), small (≥1 m to <5 m), and canopy (≥5 m). Evergreen species accounted for a large proportion of understory woody plants (44%), whereas most small (87%) and canopy (100%) trees were deciduous. Higher LMA, increased toughness, and higher C-to-N ratios prolonged leaf life-span in evergreen species. We also evaluated the presence or absence of bundle-sheath extensions (BSEs), which contribute to the mechanical support of leaves and enhance photosynthetic ability by improving hydraulic properties. In total, 11 species (28%) had homobaric leaves (BSEs were absent) and 28 species (72%) had heterobaric leaves; these proportions are similar to those of woody plants of other temperate deciduous forests. The δ15N values reflected the presence of root symbionts such as ericoid mycorrhiza or Frankia sp. Our results suggest that leaf traits may affect both the life-form of the host plants and leaf longevity in both evergreen and deciduous species.

scholarly journals Response of leaf functional traits of woody plants in central Guizhou to degraded karst soil characteristics

2021 ◽  
Author(s):  
Qi Wang ◽  
Li Rong ◽  
Mengjie Wang ◽  
Tianmu Ye ◽  
Tingting Li ◽  
...  
Keyword(s):  
Soil Properties ◽  
Functional Traits ◽  
Functional Properties ◽  
Woody Plants ◽  
Secondary Forest ◽  
Soil Depth ◽  
Leaf Traits ◽  
Soil Characteristics ◽  
Karst Area ◽  
Leaf Functional Traits

1.In this study, the dominant woody plants in different degraded background plots in Puding, Guizhou Province were selected as the research objects. Six leaf functional traits(LT, LA, SLA, LDMC, LTD, Chlc) were measured to analyze the effects of soil characteristics on the leaf functional traits of vegetation in the region. 2.We observed that under the degraded environment of karst area, the plant leaves tended to increase, with the most significant change in the returned land; There were significant differences in plant traits under burning,burning felling and returning farmland, with the largest change range of LA, LTD and SLA, which could reach 121.90%, 118.08% and 86.00% respectively in the corresponding sample plots. 3.In the degraded plots, the leaf traits were significantly different among tree, shrub and liana species. In general, the interspecific variation of shrub and liana species was higher than that of tree species, and the community was in the early and middle stage of succession. 4.Soil properties under different degradation background were quite different,and there was a significant correlation between soil properties and vegetation leaf functional properties. Soil depth, soil nutrients and soil humidity were the key soil characteristic factors of plant leaf functional properties. 5.The results showed that the leaf traits of plant in degraded area showed large LA,small LT, low SLA and LTD, high LDMC and low Chlc, which tended to develop drought character combination. This paper reveals the internal differentiation succession law of degraded karst secondary forest in central Guizhou and provides scientific basis for the management and biodiversity protection of karst secondary forest.

Twig size-number trade-off among woody plants in Tiantong region, Zhejiang Province of China

2013 ◽  
Vol 36 (12) ◽  
pp. 1268-1276 ◽  
Author(s):  
Yue XU ◽  
Xiao-Dong YANG ◽  
Yi-Ming XIE ◽  
Yi-Lu XU ◽  
X CHANG Scott ◽  
...  
Keyword(s):  
Woody Plants ◽  
Zhejiang Province ◽  
Trade Off ◽  
Size Number

scholarly journals Response of leaf traits of common broad-leaved woody plants to environmental factors on the eastern Qinghai-Xizang Plateau

2019 ◽  
Vol 43 (10) ◽  
pp. 863-876
Author(s):  
Ji-Hong YANG ◽  
Ya-Nan LI ◽  
Hai-Yan BU ◽  
Shi-Ting ZHANG ◽  
Wei QI ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Woody Plants ◽  
Leaf Traits ◽  
Xizang Plateau

Contribution of large bacteria to bacterial biomass in a deep freshwater lake (Lake Biwa, Japan)

2020 ◽  
Vol 85 ◽  
pp. 131-139
Author(s):  
S Shen ◽  
Y Shimizu
Keyword(s):  
Cell Volume ◽  
Bacterial Cell ◽  
Lake Biwa ◽  
Bacterial Biomass ◽  
Spatial Variations ◽  
Freshwater Lake ◽  
Heterotrophic Nanoflagellates ◽  
Bacterial Productivity ◽  
Transmission Electron ◽  
Seasonal And Spatial Variations

Despite the importance of bacterial cell volume in microbial ecology in aquatic environments, literature regarding the effects of seasonal and spatial variations on bacterial cell volume remains scarce. We used transmission electron microscopy to examine seasonal and spatial variations in bacterial cell size for 18 mo in 2 layers (epilimnion 0.5 m and hypolimnion 60 m) of Lake Biwa, Japan, a large and deep freshwater lake. During the stratified period, we found that the bacterial cell volume in the hypolimnion ranged from 0.017 to 0.12 µm3 (median), whereas that in the epilimnion was less variable (0.016 to 0.033 µm3, median) and much lower than that in the hypolimnion. Additionally, in the hypolimnion, cell volume during the stratified period was greater than that during the mixing period (up to 5.7-fold). These differences in cell volume resulted in comparable bacterial biomass in the hypolimnion and epilimnion, despite the fact that there was lower bacterial abundance in the hypolimnion than in the epilimnion. We also found that the biomass of larger bacteria, which are not likely to be grazed by heterotrophic nanoflagellates, increased in the hypolimnion during the stratified period. Our data suggest that estimation of carbon flux (e.g. bacterial productivity) needs to be interpreted cautiously when cell volume is used as a constant parametric value. In deep freshwater lakes, a difference in cell volume with seasonal and spatial variation may largely affect estimations.

New Invention Uproots Woody Plants

1989 ◽  
Vol 7 (2) ◽  
pp. 77-78
Author(s):  
Tom Ness
Keyword(s):  
Woody Plants
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