Skip to main content

Geography of Pinus elliottii Engelm. and Pinus palustris Mill. leaf life-spans in the southeastern U.S.A.

Buy Article:

$51.00 plus tax (Refund Policy)

Abstract:

Abstract Aim

Past studies have investigated differences in leaf life-spans between deciduous and evergreen species. Environmental controls such as light, temperature, and nutrient and moisture availability explain differences in leaf life-spans between species. This study examined intraspecific leaf life-spans across climate and nutrient gradients within the geographical range of Pinus palustris Engelm (longleaf pine) and Pinus elliottii Mill. (slash pine). Location

Five study areas in the southeastern United States were selected along the north–south geographical range of Pinus elliottii and Pinus palustris. Methods

Leaf life-span was calculated based on stand inventories and annual litterfall totals for each site, and allometric relationships between d.b.h. and foliar biomass. Results

Leaf life-span of P. elliottii ranged from 1.28 to 1.95 years between sites. Leaf life-span of P.palustris varied by nearly a factor of 5 between the study site with the lowest and highest value (0.58–2.49 years).anovaindicated that leaf life-spans of P. elliottii were not significantly different among sites. In contrast,anovaindicated a significant difference for P. palustris leaf life-spans among sites (P < 0.05). The Tukey multiple comparisons tests showed that 2 study areas were the only pair of P. palustris sites with a significant difference in leaf life-spans. Main conclusions

The geographical variation in leaf life-spans between two species illustrates the different phenotypic responses to environmental controls. The variation in leaf life-spans by individuals of P. palustris across a geographical range illustrated in this study suggests that P. palustris may exhibit a greater phenotypic plasticity than P. elliottii.

Keywords: Leaf life-span; Pinus elliottii; Pinus palustris; allometry; leaf area index; southeastern U.S.A

Document Type: Research Article

DOI: http://dx.doi.org/10.1046/j.1365-2699.2000.00418.x

Publication date: March 1, 2000

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Partial Open Access Content
Partial Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more