scholarly journals Regional-Scale Relationships of Leaf Area Index to Specific Leaf Area and Leaf Nitrogen Content

1994 ◽  
Vol 4 (2) ◽  
pp. 313-321 ◽  
Author(s):  
Lars L. Pierce ◽  
Steven W. Running ◽  
Joe Walker
Keyword(s):  
Leaf Area Index ◽  
Nitrogen Content ◽  
Leaf Area ◽  
Specific Leaf Area ◽  
Regional Scale ◽  
Leaf Nitrogen ◽  
Leaf Nitrogen Content ◽  
Area Index

scholarly journals Sensitivity of Functional Traits to Environmental factors in a Karst Plant Community

2022 ◽  
Author(s):  
Yang Wang ◽  
Limin Zhang ◽  
Jin Chen ◽  
Ling Feng ◽  
Fangbing Li ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Nitrogen Content ◽  
Bulk Density ◽  
Leaf Area ◽  
Plant Community ◽  
Functional Traits ◽  
Specific Leaf Area ◽  
Soil Bulk Density ◽  
Leaf Nitrogen ◽  
Leaf Nitrogen Content

In this study, the plant communities at five succession stages (herbage, herbage-shrub, shrub, tree-shrub, and tree) in the Zhenning Karst Plateau area of Guizhou were examined. The changes of plant functional characteristics in different succession stages were analyzed, as was the relationship between functional traits and environmental factors. The main results include the following. (1) During the succes-sion process, plant height, leaf dry matter mass, leaf area, leaf nitrogen content, and leaf phosphorus content gradually increased, whereas leaf thickness and specific leaf area decreased, and leaf C:P ratio and leaf N:P ratios did not change significantly. (2) Soil organic matter, soil total nitrogen, soil total phosphorus, soil C:N, soil C:P, and soil C:K increased at first and then decreased, reaching a peak at the tree-shrub stage. Soil total potassium fluctuated and soil bulk density gradually decreased and reached the lowest value at the tree-shrub stage. (3) Redundancy analysis (RDA) showed that the plant community shifted from a nutri-ent-poor soil environment to a nutrient-rich environment. Soil total phosphorus, soil C:K, soil organic mat-ter, soil C:N, and soil bulk density were the key environmental factors affecting the change of functional traits. (4) Structural equation modeling suggests that that specific leaf area and leaf nitrogen content had more sensitive responses to soil nutrient resources and environmental factors, respectively.

scholarly journals Spatial and temporal variations in leaf area index, specific leaf area and leaf nitrogen of two co-occurring savanna tree species

2004 ◽  
Vol 24 (2) ◽  
pp. 205-216 ◽  
Author(s):  
G. Simioni ◽  
J. Gignoux ◽  
X. Le Roux ◽  
R. Appe ◽  
D. Benest
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Specific Leaf Area ◽  
Tree Species ◽  
Temporal Variations ◽  
Leaf Nitrogen ◽  
Spatial And Temporal Variations ◽  
Area Index

Simulated optimal structure of a photosynthetic system: implication for the breeding of forest crop ideotype

1993 ◽  
Vol 23 (8) ◽  
pp. 1631-1638 ◽  
Author(s):  
Rong-Ling Wu
Keyword(s):  
Leaf Area Index ◽  
Nitrogen Content ◽  
Leaf Area ◽  
Photosynthetic Capacity ◽  
Optimal Structure ◽  
Relative Advantage ◽  
Uniform Structure ◽  
Leaf Nitrogen Content ◽  
Area Index ◽  
Photosynthetic System

A single leaf and canopy are two different levels of a photosynthetic system which have the function of carbon fixation and energy balance for plant and crop processes. A mechanistic model was derived to understand the photosynthetically based optimal structure for the maximization of whole-system nitrogen-use efficiency. The model is based upon the use of a nonrectangular hyperbola for leaf photosynthetic response to irradiance, the linear relationship of photosynthetic capacity with nitrogen content, and the Monsi–Saeki theory for the light-intercepting characteristics of the system. The whole-system carbon gain is maximized by partitioning of leaf nitrogen content (therefore photosynthetic capacity and other related physiological parameters) in terms of negatively exponential decrease with cumulative leaf area index, which has the same extinction rate with irradiance within the system. The biomass production of the photosynthetically based optimal structure (ideotype) and its relative advantage over uniform structure increase with increasing irradiance, nitrogen availability, and leaf area index. Such properties of ideotypes associated with leaf biology and geometry are discussed, as well as their application to short-rotation intensive culture in forest crops.

scholarly journals Leaf traits and gas exchange in saplings of native tree species in the Central Amazon

2010 ◽  
Vol 67 (6) ◽  
pp. 624-632 ◽  
Author(s):  
Keila Rego Mendes ◽  
Ricardo Antonio Marenco
Keyword(s):  
Gas Exchange ◽  
Nitrogen Content ◽  
Leaf Area ◽  
Tree Species ◽  
Leaf Traits ◽  
Leaf Nitrogen ◽  
Dry Season ◽  
Leaf Thickness ◽  
Rainfall Regime ◽  
Leaf Nitrogen Content

Global climate models predict changes on the length of the dry season in the Amazon which may affect tree physiology. The aims of this work were to determine the effect of the rainfall regime and fraction of sky visible (FSV) at the forest understory on leaf traits and gas exchange of ten rainforest tree species in the Central Amazon, Brazil. We also examined the relationship between specific leaf area (SLA), leaf thickness (LT), and leaf nitrogen content on photosynthetic parameters. Data were collected in January (rainy season) and August (dry season) of 2008. A diurnal pattern was observed for light saturated photosynthesis (Amax) and stomatal conductance (g s), and irrespective of species, Amax was lower in the dry season. However, no effect of the rainfall regime was observed on g s nor on the photosynthetic capacity (Apot, measured at saturating [CO2]). Apot and leaf thickness increased with FSV, the converse was true for the FSV-SLA relationship. Also, a positive relationship was observed between Apot per unit leaf area and leaf nitrogen content, and between Apot per unit mass and SLA. Although the rainfall regime only slightly affects soil moisture, photosynthetic traits seem to be responsive to rainfall-related environmental factors, which eventually lead to an effect on Amax. Finally, we report that little variation in FSV seems to affect leaf physiology (Apot) and leaf anatomy (leaf thickness).

The impact of farm management on species-specific leaf area index (LAI): Farm-scale data and predictive models

2010 ◽  
Vol 135 (4) ◽  
pp. 279-287 ◽  
Author(s):  
Michael J.O. Pocock ◽  
Darren M. Evans ◽  
Jane Memmott
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Specific Leaf Area ◽  
Predictive Models ◽  
Farm Management ◽  
Area Index ◽  
Farm Scale ◽  
Species Specific ◽  
The Impact ◽  
Scale Data

scholarly journals Specific leaf area and leaf area index in developing stands of Fagus sylvatica L. and Picea abies Karst.

2016 ◽  
Vol 364 ◽  
pp. 52-59 ◽  
Author(s):  
Bohdan Konôpka ◽  
Jozef Pajtík ◽  
Róbert Marušák ◽  
Michal Bošeľa ◽  
Martin Lukac
Keyword(s):  
Picea Abies ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Fagus Sylvatica ◽  
Specific Leaf Area ◽  
Area Index ◽  
Fagus Sylvatica L

scholarly journals SPECIFIC LEAF AREA AND LEAF AREA INDEX OF CONIFER PLANTATIONS IN QIANYANZHOU STATION OF SUBTROPICAL CHINA

2007 ◽  
Vol 31 (1) ◽  
pp. 93-101 ◽  
Author(s):  
LI Xuan-Ran ◽  
◽  
◽  
◽  
◽  
...  
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Specific Leaf Area ◽  
Subtropical China ◽  
Area Index ◽  
Conifer Plantations

scholarly journals Estimation of Specific Leaf Area Index Using Direct Method by Leaf Litter in Gwangneung, Mt. Taewha and Mt. Gariwang

2016 ◽  
Vol 18 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Boram Kwon ◽  
Jihyeon Jeon ◽  
Hyun Seok Kim ◽  
Myong Jong Yi
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Leaf Litter ◽  
Specific Leaf Area ◽  
Direct Method ◽  
Area Index
Sign in / Sign up

Export Citation Format

Share Document