Leaf litter decomposition in three Adirondack lakes

Conference · Fri Apr 01 00:00:00 EST 1983

OSTI ID:5900059

Francis, A J; Quinby, H L; Hendrey, G R; Hoogendyk, C G

Decomposition of terrestrial leaf litter in three Adirondack lakes with water pH values approximately 5, 6, and 7 was studied. Litter bags containing leaves of American beech, sugar maple, red maple, leather leaf, and red spruce were placed in the lakes. Samples were removed periodically over a 3-year period and analyzed for loss in weight, changes in leaf surface area, carbon, nitrogen, and bacterial populations. The rate of decomposition of litter depended on the leaf species tested as well as on the lake water in which they were incubated. Of the five leaf species tested, red maple decomposed much faster and red spruce more slowly, i.e., red maple > sugar maple > beech > leather leaf > red spruce. Further, the data indicated that the rate of decomposition of the leaves differed among the lakes in the order Woods (pH approx. 5) < Sagamore (pH approx. 6) < Panther (pH approx. 7), and that the microbial colonization of some leaf species was affected. Accumulations of leaf litter in acid lakes due to reduction in microbial decomposition may affect nutrient recycling in lake ecosystems. 8 references, 4 tables.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5900059
• Report Number(s): BNL-33194; CONF-8304118-1; ON: DE83015593
• Resource Relation: Conference: Lake George symposium, Lake George, NY, USA, 9 Apr 1983
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
LEAVES
BIODEGRADATION
BACTERIA
EXPERIMENTAL DATA
FOREST LITTER
LAKES
NEW YORK
PH VALUE
BIOLOGICAL MATERIALS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
FEDERAL REGION II
INFORMATION
MATERIALS
MICROORGANISMS
NORTH AMERICA
NUMERICAL DATA
SURFACE WATERS
USA
520200* - Environment
Aquatic- Chemicals Monitoring &amp; Transport- (-1989)