Delta-X: Aboveground Biomass and Necromass across Wetlands, MRD, Louisiana, 2021, V2

This dataset contains total aboveground biomass (AGB) and necromass (AGN), and total carbon, total nitrogen, and total phosphorus content of aboveground biomass (AGB) and necromass (AGN) samples collected from herbaceous wetlands in the Atchafalaya and Terrebonne basins in southeastern coastal Louisiana during 2021. Field measurements were conducted at three sites in the Atchafalaya basin and three sites in the Terrebonne basin. Five of the sites are adjacent to sites from the Coastwide Reference Monitoring System (CRMS). The other site is located in Wax Lake Delta (WLD) without appropriate adjacent CRMS sites. All AGB and AGN plant material within each plot was clipped at soil level, stored in plastic bags, and transported to the laboratory for further analyses. Herbaceous wetland sites in both basins were chosen to represent a salinity gradient including freshwater, brackish, and saline ecosystems. These data cover the period 2021-03-19 to 2021-03-31 (spring) and 2021-08-19 to 2021-08-27 (fall).

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 29, 2026, 02:09 (UTC)
Created April 1, 2025, 15:21 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 503a4c70-c322-4307-8b8d-dd471f17acbf
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/2237
license https://www.usa.gov/government-works
modified 2026-09-21T22:16:02Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash b913f781bca71644ed139a5b088f3c535269a8c44b024e9e776db6f6a6eecc57
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -91.8852, "NorthBoundingCoordinate": 29.5102, "EastBoundingCoordinate": -90.8219, "SouthBoundingCoordinate": 29.1714}]]
temporal 2021-03-19/2021-08-27
theme {"Earth Science"}