Status: 

Completed

Title

Seedling and sapling dynamics of treefall pits and undisturbed florest floor in El Verde, Puerto Rico
Summary

DOI: 

10.6073/pasta/3b0f213b384fe5a7ed8828b9cc61a7b2

Short name: 

LUQMetadata113

Data set ID: 

113

Abstract: 

Seedling and sapling dynamics in a Puerto Rican rain forest were compared between forest understory and soil pits created by the uprooting of 27 trees during Hurricane Hugo. No difference in N and P levels were found in pit or forest soils under two trees with N-fixing symbionts (Inga laurina and Ormosia krugii) compared to soils under a tree species without N-fixing symbionts (Casearia arborea), but other soil variables ( Al, Fe, K) did vary by tree species.

Dates
Date Range: 
1991-05-01 00:00:00 to 1992-05-23 00:00:00
People

Owner/Creator: 

Lawrence R. Walker

Contact: 

Lawrence R. Walker

Additional Project roles: 

Name: Miguel C Leon Role: Data Manager
Methodology

Methods: 

All trees used in this study were uprooted during Hurricane Hugo (18 Sep 1989), providing an unique opportunity to compare treefalls of identical age. My study area was in the forest that experienced the least of the damage (9% of all trees uprooted). A total of 27 uprooted trees (x = 16.6 2.6 m tall) were chosen from two tree species with symbiotic N-fixing bacteria (Edmistein, 1970), Inga laurina (Fabaceae; N = 4) and Ormosia krugii (Fabaceae; N = 9), and one tree species without simbiont Casearia arborea (Flacourtiaceae; N = 14). I observed live nodules on roots of the first two tree species but N-fixation was not measured.

Status: 

Completed

Time Period: 

Short-Term
Related

Related publications: 

Seedling and sapling dynamics in treefallpits in Puerto Rico

Related sites: 

El Verde Field Station 70-ha Plot in a research forest area
Categories

Core Areas: 

Researcher's Keywords: 

LTER Keywords: 

Table 4 Long-Term Classification: 

2006 Proposal Classification: 

Program: 

EML is valid: 

Yes

EML Link: 

Download EML

Variables Descriptions Data File Date Rangesort ascending
Seedling and sapling dynamics treefall pits cation analysis File tipcation.csv 1991-05-01 to 1992-05-23