Water&xi 7, a southwest-fiicing wZi@&EdiIltheCaweetaBasin, weitemNorthCaroliia,USA,wasckarcntin1977. Twenty-four permanent plots were invenmrkd in 1974 before cutting and in 1977,1979,19&t, and 1993 afker clearcutbg. Thisstodyeval~changesinspeciesdiversitydurlnge.srlysucceszn ~onkter -g and cliffinoverstorytree aadgroundnorarespwsetodisMtnmcebycleaccattingandtheir~~~wi~~~~ancesandsubseqnent sta...

.A panel of experts was surveyed to obtain subjectix-e estimates of the current impact of five air pollutants (SO,, NO,, O,, H,SO,, and HNO,) on srowth, mortality, and leaf area of forests of the continental U . S. for later input to economic analysis. Results from the first two of three questionnaires are discussed. Estimates of impact were highly variable among panelists (CV's near l o o % ) ...

[1] We quantified canopy transpiration (EC) using sap flux measurements representing the four major forest types (northern hardwoods, conifer, aspen/fir, and forested wetland) around the WLEF-TV tall tower in northern Wisconsin. In order to scale individual sap flux measurements to EC, we quantified the amount of sapwood area per unit ground area and the spatial distribution of sap flux within ...

Hemicelluloses are amorphous polymers of sugar molecules that make up a major fraction lignocellulosic biomasses. They have applications in the bioenergy, textile, mining, cosmetic, and pharmaceutical industries. Industrial use hemicellulose often requires polymer be hydrolyzed into constituent oligomers monomers. Traditional models degradation kinetic, usually only appropriate for limited oper...