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1. Pinon-Juniper (Core Site) Quadrat Data for the Net Primary Production Study at the Sevilleta National Wildlife Refuge, New Mexico

   https://doi.org/10.6073/pasta/97e478b38a0e114c58e370e4cefa6f47  

   Baur, Lauren; Collins, Scott; Muldavin, Esteban; Rudgers, Jennifer A; Pockman, William T. (January 2021, Environmental Data Initiative)

   {"Abstract":["This dataset contains pinon-juniper woodland quadrat data and is\n part of a long-term study at the Sevilleta LTER measuring net\n primary production (NPP) across four distinct ecosystems:\n creosote-dominant shrubland (Site C, est. winter 1999), black\n grama-dominant grassland (Site G, est. winter 1999), blue\n grama-dominant grassland (Site B, est. winter 2002), and\n pinon-juniper woodland (Site P, est. winter 2003). Net primary\n production is a fundamental ecological variable that quantifies\n rates of carbon consumption and fixation. Estimates of NPP are\n important in understanding energy flow at a community level as well\n as spatial and temporal responses to a range of ecological\n processes. Above-ground net primary production is the change in\n plant biomass, represented by stems, flowers, fruit and and foliage,\n over time and incorporates growth as well as loss to death and\n decomposition. To measure this change the vegetation variables in\n this dataset, including species composition and the cover and height\n of individuals, are sampled twice yearly (spring and fall) at\n permanent 1m x 1m plots within each site. A third sampling at Site C\n is performed in the winter. The data from these plots is used to\n build regressions correlating biomass and volume via weights of\n select harvested species obtained in SEV157, "Net Primary\n Productivity (NPP) Weight Data." This biomass data is included\n in SEV182, "Seasonal Biomass and Seasonal and Annual NPP for\n Core Research Sites.""]} 

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2. Pinon-Juniper (Core Site) Seasonal Biomass and Seasonal and Annual NPP Data for the Net Primary Production Study at the Sevilleta National Wildlife Refuge, New Mexico

   https://doi.org/10.6073/pasta/61b45622d7d453195052a409d14b7c45  

   Baur, Lauren; Collins, Scott; Muldavin, Esteban; Rudgers, Jennifer A; Pockman, William T. (January 2021, Environmental Data Initiative)

   {"Abstract":["This dataset contains pinon-juniper woodland biomass data and is\n part of a long-term study at the Sevilleta LTER measuring net\n primary production (NPP) across four distinct ecosystems:\n creosote-dominant shrubland (Site C, est. winter 1999), black\n grama-dominant grassland (Site G, est. winter 1999), blue\n grama-dominant grassland (Site B, est. winter 2002), and\n pinon-juniper woodland (Site P, est. winter 2003). Net primary\n production is a fundamental ecological variable that quantifies\n rates of carbon consumption and fixation. Estimates of NPP are\n important in understanding energy flow at a community level as well\n as spatial and temporal responses to a range of ecological\n processes. Above-ground net primary production is the change in\n plant biomass, represented by stems, flowers, fruit and and foliage,\n over time and incoporates growth as well as loss to death and\n decomposition. To measure this change the vegetation variables in\n this dataset, including species composition and the cover and height\n of individuals, are sampled twice yearly (spring and fall) at\n permanent 1m x 1m plots within each site. A third sampling at Site C\n is performed in the winter. Volumetric measurements are made using\n vegetation data from permanent plots (SEV278, "Pinon-Juniper\n (Core Site) Quadrat Data for the Net Primary Production Study")\n and regressions correlating species biomass and volume constructed\n using seasonal harvest weights from SEV157, "Net Primary\n Productivity (NPP) Weight Data.""]} 

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3. Core Research Site Web Quadrat Data for the Net Primary Production Study at the Sevilleta National Wildlife Refuge, New Mexico

   https://doi.org/10.6073/pasta/0adf2a0318199a977be2b0e5e9efe0ee  

   Baur, Lauren; Collins, Scott; Muldavin, Esteban; Rudgers, Jennifer A; Pockman, William T. (January 2021, Environmental Data Initiative)

   {"Abstract":["This dataset is part of a long-term study at the Sevilleta LTER\n measuring net primary production (NPP) across four distinct\n ecosystems: creosote-dominant shrubland (Site C, est. winter 1999),\n black grama-dominant grassland (Site G, est. winter 1999), blue\n grama-dominant grassland (Site B, est. winter 2002), and\n pinon-juniper woodland (Site P, est. winter 2003). Net primary\n production is a fundamental ecological variable that quantifies\n rates of carbon consumption and fixation. Estimates of NPP are\n important in understanding energy flow at a community level as well\n as spatial and temporal responses to a range of ecological\n processes. Above-ground net primary production is the change in\n plant biomass, represented by stems, flowers, fruit and and foliage,\n over time and incoporates growth as well as loss to death and\n decomposition. To measure this change the vegetation variables in\n this dataset, including species composition and the cover and height\n of individuals, are sampled twice yearly (spring and fall) at\n permanent 1m x 1m plots within each site. A third sampling at Site C\n is performed in the winter. The data from these plots is used to\n build regressions correlating biomass and volume via weights of\n select harvested species obtained in SEV157, "Net Primary\n Productivity (NPP) Weight Data." This biomass data is included\n in SEV182, "Seasonal Biomass and Seasonal and Annual NPP for\n Core Research Sites." This dataset is designated as NA-US-011\n in the Global Index of Vegetation-Plot Databases (GIVD). To aid\n tracking of the use of databases in this index, please also\n reference this number when citing this data. The GIVD report for\n SEV129 can be found in: Biodiversity and Ecology 4 - Vegetation\n Databases for the 21st Century (2012) by J. Dengler et al."]} 

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4. Core Research Site Web Seasonal Biomass and Seasonal and Annual NPP Data for the Net Primary Production Study at the Sevilleta National Wildlife Refuge, New Mexico

   https://doi.org/10.6073/pasta/5d6fa085c3d31bc1bc352081ec9e839a  

   Baur, Lauren; Collins, Scott; Muldavin, Esteban; Rudgers, Jennifer A; Pockman, William T. (January 2021, Environmental Data Initiative)

   {"Abstract":["This long-term study at the Sevilleta LTER measures net primary\n production (NPP) across four distinct ecosystems: creosote-dominant\n shrubland (Site C, est. winter 1999), black grama-dominant grassland\n (Site G, est. winter 1999), blue grama-dominant grassland (Site B,\n est. winter 2002), and pinon-juniper woodland (Site P, est. winter\n 2003), which is now in its own dataset, SEV278 (Pinon-Juniper (Core\n Site) Quadrat Data). Net primary production is a fundamental\n ecological variable that quantifies rates of carbon consumption and\n fixation. Estimates of NPP are important in understanding energy\n flow at a community level as well as spatial and temporal responses\n to a range of ecological processes. While measures of both below-\n and above-ground biomass are important in estimating total NPP, this\n study focuses on above-ground net primary production (ANPP).\n Above-ground net primary production is the change in plant biomass,\n including loss to death and decomposition, over a given period of\n time. Volumetric measurements are made using vegetation data from\n permanent plots collected in SEV129, "Core Research Site Web\n Quadrat Data" and regressions correlating biomass and volume\n constructed using seasonal harvest weights from SEV157, "Net\n Primary Productivity (NPP) Weight Data.""]} 

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5. Nitrogen Fertilization Experiment (NFert): Net Primary Production Quadrat Data at the Sevilleta National Wildlife Refuge, New Mexico

   https://doi.org/10.6073/pasta/c6a6ff9d718fbd8fefcff0b747f631a9  

   Baur, Lauren; Collins, Scott; Muldavin, Esteban; Rudgers, Jennifer A; Pockman, William T. (January 2021, Environmental Data Initiative)

   {"Abstract":["This dataset is part of a long-term study at the Sevilleta LTER,\n begun in spring 2004, which examines how fertilization affects\n above-ground biomass production (ANPP) in a mixed desert-grassland.\n Net primary production is a fundamental ecological variable that\n quantifies rates of carbon consumption and fixation. Estimates of\n NPP are important in understanding energy flow at a community level\n as well as spatial and temporal responses to a range of ecological\n processes. Above-ground net primary production is the change in\n plant biomass, represented by stems, flowers, fruit and foliage,\n over time and incorporates growth as well as loss to death and\n decomposition. To measure this change the vegetation variables in\n this dataset, including species composition and the cover and height\n of individuals, are sampled twice yearly (spring and fall) at\n permanent 1m x 1m plots. The data from these plots is used to build\n regressions correlating biomass and volume via weights of select\n harvested species obtained in SEV157, "Net Primary Productivity\n (NPP) Weight Data." This biomass data is included in SEV186,\n "Nitrogen Fertilization Experiment (NFert): Seasonal Biomass\n and Seasonal and Annual NPP Data.""]} 

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