Microbial Processes > Long-Term Soil Productivity (LTSP) Study > Study Details: 7 - Methods - Vegetation Data

Evaluating Management Impacts on Long-Term Soil Productivity: A Research and National Forest System Cooperative Study

Vegetation Data

1. Survival, height, diameter, and crown length of planted trees will be measured according to Curtis (1983) at the 1st, 3rd, and 5th year after planting and at 5-year intervals thereafter. Height and percent cover of other retional vegetation will be measured at the same intervals.
2. Cumulative standing biomass and leaf surface areas will be estimated at 5-year intervals for all vegetation through periodic biomass harvesting on small plots.
3. Plant damage will be recorded at each measurement interval.
4. Dry weight and nutrient content of current and year-old, upper crown foliage of trees and perennial understory vegetation.
5. Predawn and midday xylem moisture tension will be made at the midpoint and near the end of the main growing season for five dominant trees in each subplot at 5-year intervals.

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