Carbon ; China ; Climatic change ; Climatic warming ; Energy consumption ; Model ; Space time ; Spatial autocorrelation ; Sustainable development
This paper examines the spatiotemporal dynamics and dominating factors of China’s carbon intensity from energy consumption, in 1997–2010, using the spatial autocorrelation analysis, and explain the dominating factors through spatial panel
econometric model. The aim is to provide scientific basis for policy making on energy conservation and carbon emission reduction in China. The AA. propose some suggestions from the perspective of fossil energy utilization and structural adjustment of energy
Beijing ; Carbon dioxide ; Carbon footprint ; China ; Conceptual model ; Ecosystem ; Energy ; Energy consumption ; Methodology ; Multidimensional scaling ; Scenario ; Urban area
process of the carbon-based (fossil) energy flows through the complex urban ecosystems, and defined the accounting scopes and boundaries on the strength of carbon footprint and urban metabolism. The accounting system highlighted the assessment
) of CO2 efflux, and iii) to compare seasonal sum of carbon released from soil as calculated from continuous measurement and from models based on measurements at different times. The experiment was carried out in a Norway spruce forest stand, situated
in Moravian-Silesian Beskydy Mountains. Estimation of the total seasonal amount of released soil carbon based on models of individual data sets differed by as much as 7.2% from continuously measured data. The study shows that the times at which manual
Changes in soil organic carbon, nitrogen, phosphorus, and bulk density after afforestation of the Beijing–Tianjin Sandstorm Source Control program in China
Arbre ; Carbone ; Chine ; Domaine semi-aride ; Dégradation de l'environnement ; Géochimie ; Plantation ; Propriétés du sol ; Restauration écologique ; Shanxi ; Sol cultivé ; Utilisation du sol
Carbon ; China ; Cultivated land ; Ecological restoration ; Environmental degradation ; Geochemistry ; Land use ; Plantation ; Semi-arid area ; Shanxi ; Soil properties ; Tree
and afforestation time on soil carbon sequestration and physicochemical characteristics. It is highlighted that the effects of afforestation varied with plant species and afforestation time. Soil carbon, nitrogen, and phosphorus depletion rates were higher
qualitative and quantitative X-ray diffraction analyses (XRD and QXRD). The obtained results show that the occurrence of carbonate minerals (i.e. calcite) and their influence on chemical properties of soil play a crucial role in the evolution of loess soils
. It is highlighted that carbonates and high pH values are the main reasons for slowdown of mineral weathering. In carbonate loess, the dissolution and leaching of carbonates prevail over the weathering of silicates.
and its stabilisation processes in the top- and sub-soil to address and discuss the interaction between the SOM and the mineral phase. The carbon (C) storage capacity by the metal-humus-complex formation of volcanic soils is also evaluated. The most
Erosion of bulk soil and soil organic carbon after land use change in northwest Vietnam
Agropédologie ; Analyse isotopique ; Carbone ; Erosion des sols ; Erosion hydrique ; Géochimie ; Maïs ; Pratique culturale ; Sol cultivé ; Vitesse d'érosion ; Viêt Nam ; Viêt Nam du Nord-Ouest
Agricultural practice ; Agropedology ; Carbon ; Cultivated land ; Erosion rate ; Geochemistry ; Isotope analysis ; Maize ; Soil erosion ; Vietnam ; Water erosion
(carbon, input, decomposition, and erosion) approach. It is highlighted that to prevent further soil degradation, erosion protection measures should be implemented.
Azote ; Chine ; Domaine semi-aride ; Dégradation de l'environnement ; Formation herbacée ; Gansu ; Loess ; Plateau ; Propriétés du sol ; Restauration écologique ; Surpâturage ; Séquestration du carbone ; Utilisation du sol
Carbon sequestration ; China ; Ecological restoration ; Environmental degradation ; Gansu ; Grassland ; Land use ; Loess ; Nitrogen ; Over-grazing ; Plateau ; Semi-arid area ; Soil properties
The AA. investigated plant biomass, diversity and function groups, as well as soil bulk density, pH, soil carbon and nitrogen contents and the carbon/nitrogen ratio within the upper 0–1 m soil layer in fenced grassland with grazing exclusion
and in grazed grassland on the Loess Plateau (China) in 2012 and 2013. They estimated the carbon and nitrogen pools of the plants and soils to determine how the grazing exclusion affected them. Results showed that 8-year grazing exclusion increased SOC content
Detecting the storage and change on topsoil organic carbon in grasslands of Inner Mongolia from 1980s to 2010s
Action anthropique ; Analyse spatiale ; Années 1980-2010 ; Changement climatique ; Chine ; Développement durable ; Formation herbacée ; Indice de végétation ; Nei Menggu ; Stratégie d'acteurs ; Surpâturage ; Séquestration du carbone
Carbon sequestration ; China ; Climatic change ; Decision making process ; Grassland ; Human impact ; Inner Mongolia ; Over-grazing ; Spatial analysis ; Sustainable development ; Vegetation index
(0–20 cm) organic carbon storage in grasslands of Inner Mongolia between the 1980s and 2010s. The SOC storage was mainly distributed in the typical steppe and meadow steppe. The spatial distribution showed a decreased trend from the meadow steppe
Carbon dioxide ; Climatic change ; Comparative study ; Ecosystem ; Flow ; Forecast ; Model ; Neural network ; Peat bog ; Temperate zone ; Wavelet analysis
The potential of 6 temporal artificial neural networks (ANNs) augmented with and without 3 orthogonal wavelet functions was tested for predicting net ecosystem exchange of carbon dioxide (CO2) based on a long-term eddy covariance (EC) data set
Glacial crushing of limestone and the production of carbonate-rich silts in a Pleistocene glaciofluvial system : a potential source of loess in Southern Europe
Carbonate rock ; Fluvioglacial features ; Grain size distribution ; Karst ; Lithology ; Loess ; Montenegro ; Mountain ; Pleistocene ; Quaternary
meltwater route) typically display a bimodal particle size distribution, where the carbonate silt fraction has been depleted and non-carbonate silts become dominant. Fine-grained outwash deposits from directly in front of the former ice margin (type 2
of the Pleistocene formed an important source of the carbonate-rich loess in this region.
characteristics, soil physico-chemical characteristics, total organic carbon stocks (TOC stocks), accumulation rates of total organic carbon (TOC accumulation rates), and soil profiles, which were classified according to the World Reference Base (WRB) 2007. Soil
organic carbon accumulation rates were calculated. It is highlighted that slope steepness and exposition influence carbon accumulation rates.
Effects of afforestation on soil organic carbon and other soil properties
This study was conducted in May 2012 in Cedar and Black Pine afforestation sites planted in 1998, on degraded land located within the Nigde Akkaya dam watershed to form a greenbelt and combat erosion. Generally, soil organic carbon was observed
after afforestation. This study indicated that on degraded land in a semiarid region, afforestation increased soil carbon sequestration, improved some soil properties and reduced erosion over a 15-year period.
Changement climatique ; Chine ; Cycle du carbone ; Géochimie ; Matière organique ; Pergélisol ; Plateau ; Propriétés du sol ; Périglaciaire ; Qinghai ; Tibet
Carbon cycle ; China ; Climatic change ; Geochemistry ; Organic materials ; Periglacial features ; Permafrost ; Plateau ; Qinghai ; Soil properties ; Tibet
the mineralisation dynamics of organic carbon from soils under 5 vegetation conditions. The respiration rates in wet meadows were the highest. After the incubation period, all 4 fractions of SOM (non-polarity soluble, water soluble, holocellulose and lignin contents
on the changes in chemical fractions of organic matter, it could be determined that soils with higher water-soluble fractions had higher rates of carbon mineralisation, while the mechanisms involved in the respiration of different chemical fractions
Biogeochemistry ; Carbon cycle ; China ; Climatic change ; Climatic warming ; Ecosystem ; Experimentation ; Hebei ; Semi-arid area ; Soil temperature ; Vegetation
Temperature response of soil respiration depends on the sensitivity and adaptability of soil respiration (SR) for the variation of soil temperature, which will directly influence the terrestrial carbon cycling and extent prediction of global warming
on the dynamic for each site based on annual scales. However, due to the complicated relation between soil properties and SR, Q10 value derived from diurnal and seasonal patterns of SR should be used with extreme caution when estimating carbon balance
Années 2001-2009 ; Chine ; Domaine aride ; Domaine semi-aride ; Forêt ; Productivité primaire ; Restauration écologique ; Séquestration du carbone ; Utilisation du sol ; Xinjiang
Arid area ; Carbon sequestration ; China ; Ecological restoration ; Forest ; Land use ; Primary productivity ; Semi-arid area ; Xinjiang
from 2001 to 2009. The modeling method was based upon the Carnegie–Ames–Stanford Approach (CASA) terrestrial carbon model and Moderate-resolution Imaging Spectroradiometer (MODIS) remote sensing data and meteorological data for modeling simulation
activities produced an obvious positive effect in the increase of total NPP, especially for forest land. As a result, ecological restoration programs produced positive impacts on forest expansion and carbon sequestration in Xinjiang.