搜索结果: 1-12 共查到“固体地球物理学 More carbon”相关记录12条 . 查询时间(0.156 秒)
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...
Modeling dissolved organic carbon in temperate forest soils: TRIPLEX-DOC model development and validation
Modeling dissolved organic carbon temperate forest soils
2014/12/18
Even though dissolved organic carbon (DOC) is
the most active carbon (C) cycling in soil organic carbon
(SOC) pools, it receives little attention from the global C
budget.
Dissolved organic carbon and its carbon isotope compositions in hill slope soils of the karst area of southwest China: Implications for carbon dynamics in limestone soil
karst slope land soil organic carbon dissolved organic carbon δ13C
2017/4/11
Dissolved organic carbon (DOC) can be considered fine indicators of soil quality that influence soil function in specific
ways and are very sensitive to changes in soil management practices. In this ...
Magnetic separation of calcite and aragonite for use in radioactive carbon analysis
magnetic separation aragonite calcite cobalt Meigen’s solution peak intensity
2017/4/11
Aragonite and calcite often coexist; as such, separating these very similar minerals is an important step in undertaking
research on these two phases individually. One approach to discriminating betw...
Carbon-cycle feedback smaller, but still positive（图）
Carbon-cycle global temperature the biosphere’s ability
2010/1/28
Researchers in Switzerland and Germany have analysed data stretching back over 1000 years to get the best estimate yet of how changes in global temperature affect the biosphere’s ability to soak up ca...
A mechanistic modelling and data assimilation approach to estimate the carbon/chlorophyll and carbon/nitrogen ratios in a coupled hydrodynamical-biological model
mechanistic modelling data assimilation approach carbon/chlorophyll and carbon/nitrogen ratios
2009/11/11
The principal objective of hydrodynamical-biological models is to provide estimates of the main carbon fluxes such as total and export oceanic production. These models are nitrogen based, that is to s...