Extreme Drought in Grassland Ecosystems (EDGE) Seasonal Biomass and Seasonal and Annual NPP Data at the Sevilleta National Wildlife Refuge, New Mexico

Net primary production is a fundamental ecological variable that quantifies rates of carbon consumption and fixation. Estimates of NPP are important in understanding energy flow at a community level as well as spatial and temporal responses to a range of ecological processes. While measures of both below- and above-ground biomass are important in estimating total NPP, this study focuses on above-ground net primary production (ANPP). Above-ground net primary production is the change in plant biomass, including loss to death and decomposition, over a given period of time. Volumetric measurements are made using vegetation data from permanent plots collected in SEV297, "Extreme Drought in Grassland Ecosystems (EDGE) Net Primary Production Quadrat Data" and regressions correlating biomass and volume constructed using seasonal harvest weights from SEV157, "Net Primary Productivity (NPP) Weight Data."

净初级生产力（Net Primary Production，NPP）是量化碳消耗与固定速率的基础生态变量。NPP估算对于理解群落水平的能量流动，以及生态过程对空间和时间变化的响应至关重要。尽管地下和地上生物量的测量对估算总NPP均具有重要意义，但本研究聚焦于地上净初级生产力（Above-ground Net Primary Production，ANPP）。ANPP指特定时间段内植物生物量的变化，包括因死亡和分解造成的损失。体积测量利用SEV297项目（“草原生态系统极端干旱（EDGE）净初级生产力样方数据”）中永久样地的植被数据，以及通过SEV157项目（“净初级生产力（NPP）重量数据”）的季节性收获重量构建的生物量与体积相关回归模型完成。