CO2 concentrations and microbial biomass data derived from incubation experiments on soils collected at Arches National Park in 2017 and 2018

These data were compiled to improve our understanding of how water, carbon (C), nitrogen (N), and phosphorus (P) interact to regulate below ground carbon cycling. Objective(s) of our study were to evaluate how soil heterotrophic carbon cycling responded to inputs of water, C, N, and P individually and interactively on the Colorado Plateau. These data represent soil microbial and CO2 respiration responses to amendments of carbon, nitrogen, phosphorous, and water. Soils were collected at a study site located in Arches National Park in southeastern Utah on 14 August 2017 and again on 17 July 2018 from the upper 10 cm of the soil profile in open spaces among plant canopies after the biological soil crust layer (< 1...

Categories: Data; Tags: Arches National Park, Botany, CO2 respiration, Colorado Plateau, Ecology, All tags... Geography, Information Sciences, Moab, Soil Sciences, USGS Science Data Catalog (SDC), Utah, biogeochemical cycling, biological soil crusts, biota, carbon, carbon cycling, carbon dioxide, carbon flux, climate change, data release, dryland ecosystem, geoscientificInformation, heterotrophic soil respiration, laboratory experiments, microbial biomass, nitrogen, nutrients, phosphorus, resource limitation, soil efflux, soil incubation experiments, soil profile, soil resources, soil respiration, southeastern Utah, stoichiometry, terrestrial ecosystems, water, Fewer tags

Co-limitation of first year Fremont cottonwood seedlings by nitrogen and water

Nutrient availability strongly affects the species composition and productivity of most upland ecosystems, but the importance of nutrient availability is largely undefined for riparian ecosystems in semiarid regions of the western United States. The establishment and persistence of riparian cottonwood (Populus spp.) seedlings depends largely on water availability, but this does not preclude an important role for nutrient availability. To investigate how nitrogen availability may influence the composition and productivity of riparian communities, we tested the hypothesis that the growth and survival of first-year Fremont cottonwood seedlings is limited by the availability of both water and nitrogen. Plots of naturally...

Categories: Publication; Types: Citation, Journal Citation; Tags: Populus deltoides, Springer Netherlands, Wetlands, nitrogen, resource limitation, All tags... riparian, seedling growth, water, Fewer tags