Status: 

Completed

Title

Canopy Trimming Experiment (CTE) trace gases
Summary

Short name: 

LUQMetadata164

Data set ID: 

164

Abstract: 

This data set provides the monthly trace effluxes measured across the soil-atmosphere interface from five soil surface chambers in all the CTE plots.

Dates
Date Range: 
2004-09-07 00:00:00 to 2010-08-10 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
Methodology

Methods: 

We measured trace effluxes across the soil-atmosphere interface from five soil surface chambers monthly in all the CTE plots. Gas samples were sampled over 5 time points, injected immediately into pre-evacuated vials sealed with geo-microbial septa. Samples were shipped overnight to UC Berkeley where they were analyzed on a gas chromatograph. Carbon dioxide was analyzed using a TCD, N2O with a ECD and methane with an FID.

Table 1. Treatments by block and plot number, subplot locations of litter baskets, and dates of canopy trimming applied to appropriate plots (NA is not applicable – trimming not applied).

Block

Treatment

Plot

Subplots

Dates canopy was trimmed

A

Control

1

2, 4, 5, 12, 14

A

Trim & clear

2

2, 3, 9, 10, 12

22 Mar. – 13 Apr. 2005

A

Trim +debris

3

1, 4, 10, 14, 15

28 Mar. – 19 Apr. 2005

A

No trim +debris

4

1, 4, 7, 9, 12

NA

B

Control

1

1, 2, 4, 8, 13

NA

B

Trim +debris

2

2, 3, 9, 12, 16

26 Oct. – 21 Dec. 2004

B

No trim +debris

3

3, 12, 14, 15, 16

NA

B

Trim & clear

4

1, 7, 14, 15 (not in 4)

8 Nov. – 28 Dec. 2004

C

No trim +debris

1

1, 3, 5, 12, 16

NA

C

Trim +debris

2

2, 3, 7, 12, 16

2 Feb. – 9 Mar. 2005

C

Trim & clear

3

1, 4, 10, 16 (not in 8)

25 Jan. – 9 Mar. 2005

C

Control

4

1, 3, 11, 12, 13

NA

Status: 

Completed

Time Period: 

Long-Term
Categories

EML is valid: 

Yes