Status: 

Ongoing

Title

Canopy Trimming Experiment (CTE) plants greater than 1 centimeter diameter at breast height (DBH)
Summary

Short name: 

LUQMetadata144

Data set ID: 

144

Abstract: 

Plant diameters and growth measurements were taken both before and after treatments to determine how alterations in canopy openness and detritus affect measures of growth, mortality, and production. Both types of trimmed plots are predicted to have relatively quick evidence of re-sprouting (1-3 months; based on Hurricane Hugo studies), especially palms. Because essentially complete defoliation to the canopy took place in the trim plots, the large stems that were trimmed should experience delayed growth and higher mortality than those in non-trimmed plots. The understory vegetation, or otherwise those that were not trimmed (i.e., stems <10cm at dbh) should experience increased growth in both trim plots as a result of increased light. Some nutrient immobilization may occur in the detritus addition plots, but this is predicted to affect belowground processes most. Little influence on aboveground processes from detritus addition might occur and cause some stunted growth rates of stems.

Dates
Date Range: 
2003-03-01 00:00:00 to 2015-10-26 00:00:00

Publication Date: 

2011-06-07 00:00:00
People

Owner/Creator: 

Contact: 

Additional Project roles: 

Name: Eda Melendez-Colom Role: Data Manager
Name: Aaron Shiels Role: Associated Researcher
Name: Nickolas Brokaw Role: Associated Researcher
Methodology

Methods: 

All stems >=1 cm diameter at 1.3 m height (dbh) were marked with permanent tags, identified to species (nomenclature follows Little & Wadsworth, 1964; Liogier andMartorell, 1982) and measured for dbh and height (to the apical meristem) in April 2003. Due to the difficulty of measuring palm diameters when the leaf rachis is at 1.3 m, we used methods described in Thompson et al. (2002) where the base of the palm was measured for dbh only when palms had their leaf-branching point >1.3 m. Palm heights were measured to the highest foliar structure. Growth increments for all stems >=1 cm diameter were determined after subtraction of dbh and height from the April 2003 census. Vegetation <1 cm dbh was measured in seedling plots and appear in a separate data set.

Status: 

Ongoing

Time Period: 

Long-Term
Categories

EML is valid: 

Yes