Data from: Six years of ecosystem-atmosphere greenhouse gas fluxes measured in a sub-boreal forest

Continuous tower-based measurements of the ecosystem-atmosphere exchange of CO2 and CH4 are presented, recorded over the period 2012–2018 and reported at a 30-minute time step at a sub-boreal forest in the northeastern United States. Additionally, we describe a five-year (2012–2016) dataset of chamber-based measurements of soil fluxes of CO2, CH4, and N2O (2013–2016 only), conducted each year from May to November. These data can be used for process studies, for biogeochemical and land surface model validation and benchmarking, and for regional-to-global upscaling and budgeting analyses.

Agroecosystems & Environment

SPUR2

SPUR2 DOS ver. 2.2 is a general grassland ecosystem simulation model designed to determine beef cattle performance and production by simultaneously simulating production of up to 15 plant species on 36 heterogeneous grassland sites. SPUR2 simulates grassland hydrology, nitrogen cycling, and soil organic matter on grazed ecosystems as well as rangeland production under different climatic regimes, environmental conditions, and management alternatives.

Agroecosystems & Environment

NorWeST Stream Temperature Regional Database and Model

The NorWeST webpage hosts stream temperature data and climate scenarios in a variety of user-friendly digital formats for streams and rivers across the western U.S. Temperature data and model outputs, registered to NHDPlus stream lines, are posted to the website after QA/QC procedures and development of the final temperature model within a river basin.

Agroecosystems & Environment

The National Stream Internet project

National Stream Internet (NSI) project was developed as a means of providing a consistent, flexible analytical infrastructure that can be applied with many types of stream data anywhere in the country. A key part of that infrastructure is the NSI network, a digital GIS layer which has a specific topological structure that was designed to work effectively with SSNMs. The NSI network was derived from the National Hydrography Dataset Plus, Version 2 (NHDPlusV2) following technical procedures that ensure compatibility with SSNMs.

Agroecosystems & Environment

Data from: The downed and dead wood inventory of forests in the United States

The Forest Inventory and Analysis program of the United States (US) Forest Service has conducted an annual downed dead wood (DDW) inventory on all coterminous US forest land since 2002 (~1 plot per 38,850 ha), with a sample intensification occurring since 2012 (~1 plot per 19,425 ha). The data are organized according to DDW components and by sampling information which can all be linked to a multitude of auxiliary information in the national database.

Agroecosystems & Environment

Effort Versus Reward: Preparing samples for fungal community characterization in high-throughput sequencing surveys of soils

This data set consists of four data files. The FASTA file, Representative OTU sequences.fa, contains representative sequences from the operational taxonomic units (OTUs) shown in the OTU table. FASTA files can be opened in simple text editors, and sequences can be aligned using the BLAST tool (http://blast.ncbi.nlm.nih.gov/Blast.cgi) or open source software, like AliView (http://www.ormbunkar.se/aliview/). There are two Excel data files: OTU table and heatmaps.xlsx and Diversity Indexes.xlsx. The former contains the raw abundance data for the observed OTUs from the different experimental sites. The latter is a breakdown of various diversity indices that are grouped based on experimental characteristics, such as extraction volume, extraction method, etc. Excel_Archive.zip is a compressed version of the two Excel data files that have been converted to more archival-friendly formats using Excel Archival Tool.

effort versus reward chart

Agricultural Land Management Alternative with Numerical Assessment Criteria (ALMANAC) Simulation Model

The Agricultural Land Management Alternative with Numerical Assessment Criteria (ALMANAC) model simulates crop growth, competition, light interception by leaves, biomass accumulation, partitioning of biomass into grain, water use, nutrient uptake, and growth constraints such as water, temperature, and nutrient stress. Plant development is temperature driven, with duration of growth stages dependent on degree days. Each plant species has a defined base temperature and optimum temperature.

Agroecosystems & Environment

NRCS Regional Conservation Partnership Program - California Bay Delta

Noteworthy for its agricultural productivity, ecological diversity, and complexity, the Bay Delta is one of the largest and most complex water delivery systems in the nation. The Sacramento River and San Joaquin River meet in the Delta, which provides water to one of the most significant estuary ecosystems in the United States and provides drinking water to 25 million Californians. The Bay Delta offers habitat to 55 species of fish and 750 species of plants and wildlife. This dataset includes a printer-friendly CCA map and shapefiles for GIS.

Maps and Multimedia