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Depth profiling analysis of solar wind helium collected in diamond-like carbon film from Genesis
solar wind depth profile helium NASA Genesis mission post-ionization
2017/4/10
The distribution of solar-wind ions in Genesis mission collectors, as determined by depth profiling analysis, constrains
the physics of ion-solid interactions involving the solar wind. Thus, they pro...
Do grazer hair and faeces reflect the carbon isotope composition of semi-arid C3/C4 grassland?
Community composition Grazing pressure Ecosystem reconstruction Pasture Trophic shift Digestibility Selectivity Discrimination Diet Inner Mongolia
2015/2/4
The carbon isotope composition ( d13C) of C3/C4 mixed grassland is reflected in the d13C of diet, hair or faeces of grazers, if 13C discrimination (13 D) between grassland vegetation and these tissues...
Universidade de Sao Paulo Centro de Energia Nuclear na Agricultura: Soil microbiota related to carbon, nitrogen and greenhouse gas cycles across different land uses in Southwestern Amazonia
Biological sciences Earth sciences Soil microbiota Amazonia Biogeochemical cycles Gene abundance Land use change
2015/1/28
Sustainability is one of the biggest goals of humankind in the new millennium. An increasing global demand on agricultural products stimulates agricultural expansion in Brazil, especially in the South...
Nitrogen, Phosphorus and Carbon Dynamics during Storms in a Glaciated Third-Order Watershed in the US Midwest
DOC nitrate phosphorus hydrology
2015/1/16
The characterization of the nutrients nitrogen, phosphorus and carbon (NPC) export to streams during storms is an integral part of understanding processes affecting water quality. Despite the fact tha...
Invasive Reed Canary Grass (Phalaris arundinacea) and Carbon Sequestration in a Wetland Complex
Carbon sequestration Residue quality Wetland complex Reed canary grass
2015/1/16
Terrestrial carbon sequestration is one of several proposed strategies to reduce the rate of carbon dioxide (CO2) accumulation in the atmosphere, but the impact of plant invasion on soil organic carbo...
Changes in soil organic carbon and nitrogen capacities of Salix cheilophila Schneid along a revegetation chronosequence in semi-arid degraded sandy land of the Gonghe Basin, Tibet Plateau
Republican basin the desert area soil organic carbon
2015/1/6
The Gonghe Basin is a sandified and desertified region of China, but the distribution of soil organic carbon (SOC) and total nitrogen (TN) along the cultivation chronosequence across this ecologically...
Record of Early Toarcian carbon cycle perturbations in a nearshore environment: the Bascharage section (easternmost Paris Basin)
Black shale deposit early Jurassic the negative carbon isotope
2015/1/6
In order to understand the significance of the worldwide deposition of black shale facies in the Early Toarcian (~ 183 Ma), considerable attention has been drawn to this Early Jurassic sub-stage over ...
Conventional tillage versus organic farming in relation to soil organic carbon stock in olive groves in Mediterranean rangelands (southern Spain)
Conventional tillage organic farming soil organic carbon stock olive groves Mediterranean rangelands
2015/1/6
Soil organic carbon (SOC) concentration is a soil variable subject to changes. The management system is a key factor that influences these changes. To determine the long-term effects of the management...
Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar
Factors driving the carbon mineralization priming sandy loam soil amended different types of biochar
2015/1/6
The effect of biochar on the soil carbon mineralization priming effect depends on the characteristics of the raw materials, production method and pyrolysis conditions. The goal of the present study is...
Permafrost-affected soils and their carbon pools with a focus on the Russian Arctic
Soil organic matter, swimming pool, the quaternary period, the climate system, cryosphere, arctic climate
2015/1/6
Permafrost-affected soils have accumulated enormous pools of organic matter during the Quaternary period. The area occupied by these soils amounts to more than 8.6 million km2, which is about 27% of a...
Grassland fire effect on soil organic carbon reservoirs in a semiarid environment
effect on soil organic carbon emiarid environment
2015/1/5
The aim of this work was to investigate the effect of an experimental fire used for grassland management
on soil organic carbon (SOC) stocks. The study was carried
out on Hyparrhenia hirta (L....
Impacts of land use change in soil carbon and nitrogen in a Mediterranean agricultural area (Southern Spain)
Agriculture in the Mediterranean region arable land crops olive groves vineyards and soil organic carbon
2015/1/5
The agricultural Mediterranean areas are dedicated to arable crops (AC), but in the last decades, a significant number of AC has led to a land use change (LUC) to olive grove (OG) and vineyards (V). A...
Tropical troposphere to stratosphere transport of carbon monoxide and long-lived trace species in the Chemical Lagrangian Model of the Stratosphere (CLaMS)
Tropical troposphere long-lived
2014/12/19
Variations in the mixing ratio of trace gases of tropospheric origin entering the stratosphere in the tropics are of interest for assessing both troposphere to stratosphere transport fluxes in the tro...
The North American Carbon Program Multi-scale Synthesis and Terrestrial Model Intercomparison Project – Part 2: Environmental driver data
The North American Carbon Program Multi-scale Synthesis Terrestrial Model Intercomparison Project – Part 2
2014/12/19
Ecosystems are important and dynamic components of the global carbon cycle, and terrestrial biospheric models (TBMs) are crucial tools in further understanding of how terrestrial carbon is stored and ...
Modelling the role of fires in the terrestrial carbon balance by incorporating SPITFIRE into the global vegetation model ORCHIDEE – Part 1: simulating historical global burned area and fire regimes
simulating historical global burned area fire regimes
2014/12/19
Fire is an important global ecological process that influences the distribution of biomes, with consequences for carbon, water, and energy budgets. Therefore it is impossible to appropriately model th...