PRE02 Reproductive effort of Big Bluestem, Indiangrass and Little Bluestem on selected Konza Prairie LTER watersheds

This data set focuses on seed production, flowering stem mass, height, and population densities of three dominant prairie grasses: Andropogon gerardii (ANGE), Sorgastrum nutans (SONU), and Schizachyrium scoparium (ANSC) in selected Konza Prairie LTER watersheds. Data set includes measurements of flowering stem height (m), density (no. per sq. m) and production (grams per sq. m) and total seed weight (grams) and production (grams per sq. on 2 soil types (shallow and deep) in watersheds representing different burning-grazing treatment combinations. Specific watersheds sampled have varied over time. Current watersheds include: 001d, R01a, R01b, 002c, 002d, 004a, 004b, 020b, R20a, R20b, 0SpA, 0SpB, 0SuA, 0SuB, 00FA, 00FB, 00WA and 00WB Sampling is done once a year in October/November (end of growing season). (Sampling design slightly altered from PRE01).

本数据集聚焦康扎草原长期生态研究（Konza Prairie Long-Term Ecological Research, LTER）选定流域内三种优势草原草本的种子产量、花茎生物量、株高与种群密度，供试物种包括大须芒草（Andropogon gerardii, ANGE）、垂穗高粱草（Sorgastrum nutans, SONU）以及小须芒草（Schizachyrium scoparium, ANSC）。数据集涵盖了不同火-放牧处理组合流域内两种土壤类型（浅型与深型）下的多项测定指标：花茎高度（单位：米）、种群密度（单位：株/平方米）、花茎生物量产量（单位：克/平方米），以及种子总重量（单位：克）与种子产量（单位：克/平方米）。采样所涉及的具体流域随时间有所调整，当前采样流域包括：001d、R01a、R01b、002c、002d、004a、004b、020b、R20a、R20b、0SpA、0SpB、0SuA、0SuB、00FA、00FB、00WA及00WB。采样每年开展一次，时间为10月/11月（生长季末期）。（本次采样设计相较于PRE01略有调整）