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Frequently Asked Questions (FAQs)

What is the funding opportunity number for this grant?

The funding opportunity number is 10HQPA0051.

Which agency issued this grant opportunity?

The opportunity was issued by the U.S. Geological Survey (USGS), specifically the California Water Science Center (CAWSC), under the Cooperative Ecosystem Studies Unit (CESU) Program.

What type of grant is this?

This is a discretionary research grant in the Science and Technology/Research and Development category.

What is the CFDA program associated with this opportunity?

The CFDA is 15.808, U.S. Geological Survey Research and Data Collection.

How many awards did USGS anticipate making?

USGS anticipated making one award.

What was the estimated total funding amount?

The estimated total funding amount was $50,000.

Were cost sharing or matching funds required?

No. The opportunity did not require cost sharing or matching funds.

When was the solicitation posted and when did it close?

The solicitation was posted on April 26, 2010, and it closed on May 6, 2010.

Is this opportunity still open?

No. The announcement indicates it was archived on June 5, 2010, after the May 6, 2010 closing date.

Who was eligible to apply?

Eligibility was limited to universities (and other partners) that are formal participants in the CESU network, consistent with the CESU partnering model for research, technical assistance, and education supporting federal resource-management needs.

What is the title of the funded project described in the announcement?

The project is titled "Molecular level Decomposition Studies in Sacramento San Joaquin Delta Wetlands."

How does this project relate to other work mentioned in the announcement?

This project is designed to support and coordinate closely with a companion effort titled "Modeling Carbon and Greenhouse Gas Dynamics in Sacramento San Joaquin Delta Wetlands." The molecular-level results are meant to provide evidence to interpret and strengthen the broader modeling work.

Where is the study location for the project?

The work is set at the Twitchell Island pilot wetland facility in the Sacramento-San Joaquin Delta.

What program context is mentioned for Twitchell Island?

The announcement references the Carbon Farm pilot program, which has operated for about a decade at Twitchell Island to evaluate whether restored or managed wetlands can sequester carbon and help reverse land subsidence by building peat.

What scientific observation motivated this research?

Observations at Twitchell Island showed that plant material decomposition slowed as the wetland system matured, and this slowdown corresponded with increased carbon sequestration and greater peat accretion.

What central question is the project trying to answer?

A central question is why decomposition slows over time in the maturing wetland system and what controls the rate of peat accumulation, with the longer-term objective of understanding whether those controls could potentially be managed or manipulated to maximize carbon storage.

What main mechanism is discussed as a possible explanation for slower decomposition?

One widely cited explanation discussed is that mature wetlands develop more persistently anoxic (low-oxygen) conditions, which can suppress decomposition and enhance preservation of organic matter.

Why is lignin highlighted in the project description?

Lignin is highlighted because the oxygen-control mechanism is expected to be especially important for compounds whose breakdown differs strongly between aerobic and anaerobic environments, and lignin is identified as a key example.

What alternative explanation does the announcement raise besides oxygen conditions?

The announcement notes that plant chemical composition can change over time. Plants can shift biochemical allocation (including lignin production) in response to environmental stressors, and wetland maturation could change plant tissue chemistry in ways that influence decomposition independent of oxygen conditions.

What is the core scientific distinction the project aims to tease apart?

The project is framed to distinguish whether higher lignin preservation mainly reflects anoxic preservation (a process control) or whether changing plant composition is driving the pattern (a compositional control).

What are the main components of the scope of work?

The scope includes three integrated components: (1) molecular-level analyses focused primarily on lignin using approximately 40 decomposition bag samples from annual decomposition experiments at the Twitchell Island demonstration ponds; (2) a final report synthesizing preservation mechanisms indicated by molecular signatures, explicitly addressing interannual variability; and (3) project management and coordination with the USGS CAWSC team and the linked modeling project.

What samples were expected to be analyzed?

The awardee was expected to analyze approximately 40 decomposition bag samples drawn from a series of annual decomposition experiments conducted at the Twitchell Island demonstration ponds.

What is the primary analytical focus of the molecular work?

The molecular analyses are described as being focused primarily on lignin, with the aim of quantifying molecular compositions and concentrations that indicate how lignin and related compounds persist or break down.

What is meant by "interannual variability" in the final report requirement?

Interannual variability refers to differences among years in the experimental record. The final report was expected to explicitly address how preservation mechanisms and molecular signatures vary from year to year.

What deliverables were expected from the recipient?

The expected deliverables included molecular-level analytical results and a final interpretive report. The report was expected to synthesize results around preservation mechanisms indicated by molecular signatures and provide evidence useful for improving or validating carbon and greenhouse gas dynamics models in Delta wetlands.

How long was the project timeline described in the announcement?

The timeline emphasized a short, execution-focused analytical phase of roughly three months, followed by analysis and reporting completed in collaboration with USGS scientists.

What coordination expectations were included?

The recipient was responsible for project management functions needed to complete the work and coordinate with the USGS CAWSC team and the linked modeling project.

What was the overall purpose of doing molecular-level decomposition studies here?

The purpose was to generate molecular-scale evidence that can help explain what is driving preservation and peat accretion at Twitchell Island, interpret the observed slowdown in decomposition as wetlands mature, and strengthen the companion modeling effort focused on carbon and greenhouse gas dynamics.

Who was the point of contact listed for access issues with the full announcement?

The point of contact listed was Faith Graves, Contract Specialist, at 703-648-7356.