The climate benefit of sequestration in soils for warming mitigationSpringer Science and Business Media LLC - - 2022
Susan E. Crow, Carlos Sierra
AbstractSoils are an enticing reservoir for nature-based climate solutions, but long timescales are required to store amounts of C of relevance to mitigate warming acknowledging its impermanence. Scientific clarity on the controlling factors in soil C persistence should help to disambiguate debates related to permanence in the climate policy domain. However, anothe...... hiện toàn bộ
Magnitude and variations of groundwater seepage along a Florida marine shorelineSpringer Science and Business Media LLC - Tập 38 - Trang 189-205 - 1997
JAYE E. CABLE, WILLIAM C. BURNETT, JEFFREY P. CHANTON
Direct groundwater inputs are receiving increasingattention as a potential source of nutrients and otherdissolved constituents to the coastal ocean. Seepageinto St. George Sound, Florida was measuredextensively from 1992 to 1994 using seepage meters. Spatial and temporal variations were documented alonga 7-km stretch of coastline and up to 1 km from shore. Measurements were made at 3 transects per...... hiện toàn bộ
Decadal cycling within long-lived carbon pools revealed by dual isotopic analysis of mineral-associated soil organic matterSpringer Science and Business Media LLC - Tập 112 - Trang 111-125 - 2011
Sarah L. O’Brien, Julie D. Jastrow, Karis J. McFarlane, Thomas P. Guilderson, Miquel A. Gonzalez-Meler
Long-lived soil organic matter (SOM) pools are critical for the global carbon (C) cycle, but challenges in isolating such pools have inhibited understanding of their dynamics. We physically isolated particulate (>53 μm), silt-, and clay-sized organic matter from soils collected over two decades from a perennial C3 grassland established on long-term agricultural soil with a predominantly C4 isotopi...... hiện toàn bộ
An exploration of how litter controls drainage water DIN, DON and DOC dynamics in freely draining acid grassland soilsSpringer Science and Business Media LLC - Tập 107 - Trang 165-185 - 2010
Muhammad Riaz, Ishaq A. Mian, Ambreen Bhatti, Malcolm S. Cresser
Surface and subsurface litter fulfil many functions in the biogeochemical cycling of C and N in terrestrial ecosystems. These were explored using a microcosm study by monitoring dissolved inorganic nitrogen (DIN) (NH4
+–N + NO3
−–N), dissolved organic nitrogen (DON) and dissolved organic carbon (DOC) concentrations and fluxes in drainage water under ...... hiện toàn bộ
Mechanisms and magnitude of dissolved silica release from a New England salt marshSpringer Science and Business Media LLC - Tập 161 - Trang 251-271 - 2022
Olivia L. Williams, Andrew C. Kurtz, Meagan J. Eagle, Kevin D. Kroeger, Joseph J. Tamborski, Joanna C. Carey
Salt marshes are sites of silica (SiO2) cycling and export to adjacent coastal systems, where silica availability can exert an important control over coastal marine primary productivity. Mineral weathering and biologic fixation concentrate silica in these systems; however, the relative contributions of geologic versus biogenic silica dissolution to this export are not known. We collected water sam...... hiện toàn bộ
Four years of litter input manipulation changes soil microbial characteristics in a temperate mixed forestSpringer Science and Business Media LLC - Tập 154 - Trang 371-383 - 2021
Weiwei Dai, Bo Peng, Jun Liu, Chao Wang, Xin Wang, Ping Jiang, Edith Bai
Aboveground litter not only is an important source of nutrients to soil microbes but also regulates the microclimate in topsoil. How the changes in aboveground litter quantity would affect the microbial biogeochemical cycles is still unclear. Here we conducted a litter input manipulation experiment in a temperate mixed forest to investigate how different amounts of litter input affect soil organic...... hiện toàn bộ
Emission of gaseous nitrogen oxides from an extensively managed grassland in NE Bavaria, Germany.Springer Science and Business Media LLC - Tập 63 - Trang 229-247 - 2003
Jens Tilsner, Nicole Wrage, Jutta Lauf, Gerhard Gebauer
In a one-year field study (June 1998 to April 1999), we quantified N2O and NOx emissions from an extensively managed grassland in NE Bavaria (Germany) in unfertilized controls and after application of slurry or mineral N (calcium ammonium nitrate), respectively. Emissions were measured every 2–4 weeks, with additional daily measurements for 10 days after each fertilizer application. The closed cha...... hiện toàn bộ
Patterns of foliar and soil nitrogen isotope composition of Caragana microphylla, a leguminous shrub species in the semi-arid regions of northern ChinaSpringer Science and Business Media LLC - Tập 146 - Trang 257-269 - 2019
Fei Ma, Zhaona Zhou, Shanlong Li, Zhe Ai, GuoJu Xiao, Yanlong Jia, Tingting Xu, Matthew D. Denton
Variation in foliar and soil nitrogen (N) isotope composition (δ15N) across environmental gradients has been widely studied at various scales. However, much less is known about the patterns of N2-fixing species that are presumed to be independent of climatic factors due to their capacity to fix atmospheric N2. In this study, the foliar and soil δ15N in Caragana microphylla, a leguminous shrub impo...... hiện toàn bộ