Leaf exsertion, leaf elongation, and leaf senescence in Eriophorum vaginatum and Carex Bigelowii

Technical Report · Mon Jan 01 00:00:00 EST 1990

OSTI ID:6536436

Shaver, G R; Yandow, T; Laundre, J

Most of the common sedges of arctic vegetation show a pattern of leaf production in which the exsertion and elongation of new leaves is more or less simultaneous with the senescence of old leaves. The present study was designed to increase our understanding of the variability sequential leaf production by arctic sedges, and to determine some of the controls on that variability. We did this in two ways: first, we compared the sequential patterns of leaf growth and senescence in E. vaginatum with those of Carex Bigelowii Torr. at two tussock tundra sites near Toolik Lake on the North Slope of Alaska. Second, we compared the responses of leaf growth in these species in control and fertilized plots and in two microenvironments thought to differ sharply in nutrient availability and total productivity. 29 refs., 28 figs., 2 tabs.

• Research Organization: Marine Biological Lab., Woods Hole, MA (USA). Ecosystems Center
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG02-84ER60241
• OSTI ID: 6536436
• Report Number(s): DOE/ER/60241-1; ON: DE90014740
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
09 BIOMASS FUELS
ARCTIC REGIONS
LEAVES
LILIOPSIDA
BIOLOGICAL VARIABILITY
PLANT GROWTH
CHLOROSIS
COMPARATIVE EVALUATIONS
FERTILIZATION
FOLIAR UPTAKE
NUTRITION
PHOTOSYNTHESIS
PLANT TISSUES
PROGRESS REPORT
SEASONAL VARIATIONS
TUNDRA
BODY
CHEMICAL REACTIONS
DOCUMENT TYPES
GROWTH
MAGNOLIOPHYTA
PATHOLOGICAL CHANGES
PHOTOCHEMICAL REACTIONS
PLANTS
POLAR REGIONS
SYNTHESIS
TISSUES
UPTAKE
VARIATIONS
540210* - Environment
Terrestrial- Basic Studies- (1990-)
090700 - Biomass Fuels- Resources- (1990-)