Greenland Ice Core Records and Rapid Climate Change Author(s
... last 10 000 years. It is an interval of relatively stable climate, with mean 180 values of -34.7 ppt and -34.9 ppt for the GISP2 and GRIP cores, respectively (Grootes et al. 1993). The Holocene warm period is separated from the underlying isotopically more negative ice, indicating colder conditions, ...
... last 10 000 years. It is an interval of relatively stable climate, with mean 180 values of -34.7 ppt and -34.9 ppt for the GISP2 and GRIP cores, respectively (Grootes et al. 1993). The Holocene warm period is separated from the underlying isotopically more negative ice, indicating colder conditions, ...
Microorganisms and climate change: terrestrial feedbacks and
... From the first molecules of oxygen produced by marine cyanobacteria ~3.5 billion years ago1 to the methanogens luxuriating in the warm, carbon-rich swamps of the Carboniferous period2, microbial processes have long been key drivers of, and responders to, climate change. It is widely accepted that mi ...
... From the first molecules of oxygen produced by marine cyanobacteria ~3.5 billion years ago1 to the methanogens luxuriating in the warm, carbon-rich swamps of the Carboniferous period2, microbial processes have long been key drivers of, and responders to, climate change. It is widely accepted that mi ...
High-resolution mapping of soil organic carbon storage and
... (2004) identified permafrost as one of the key carbon pools in the global carbon cycle. The authors concluded that thias SOC is presently locked in frozen state, but may be vulnerable to thaw and remobilization due to climate change. At the time permafrost carbon pool was estimated to 400 Pg (Grube ...
... (2004) identified permafrost as one of the key carbon pools in the global carbon cycle. The authors concluded that thias SOC is presently locked in frozen state, but may be vulnerable to thaw and remobilization due to climate change. At the time permafrost carbon pool was estimated to 400 Pg (Grube ...
Detecting microbial N-limitation in tussock tundra soil
... secondary C-limitation regardless of the potential C supply (Fontaine et al., 2003; Schimel and Weintraub, 2003). Separating these different mechanisms requires more sophisticated analyses than simply measuring changes in respiration with C or N-additions. For example, if microbial growth is moderat ...
... secondary C-limitation regardless of the potential C supply (Fontaine et al., 2003; Schimel and Weintraub, 2003). Separating these different mechanisms requires more sophisticated analyses than simply measuring changes in respiration with C or N-additions. For example, if microbial growth is moderat ...
The effect of experimental warming and precipitation
... enzymes are a principal driver of the within-system cycle of soil nitrogen, yet there is little to no understanding of their response to climate change. Here, we use a single methodology to investigate potential proteolytic enzyme activity in soils from 16 global change experiments. We show that reg ...
... enzymes are a principal driver of the within-system cycle of soil nitrogen, yet there is little to no understanding of their response to climate change. Here, we use a single methodology to investigate potential proteolytic enzyme activity in soils from 16 global change experiments. We show that reg ...
Climate and soil factors influencing seedling recruitment of plant
... were collected from an active mine site in the southern part of the region and used as growth media. These materials consisted of topsoil retrieved from previously stockpiled material and an overburden waste material commonly used in landform reconstruction due to its erosive stability and physical ...
... were collected from an active mine site in the southern part of the region and used as growth media. These materials consisted of topsoil retrieved from previously stockpiled material and an overburden waste material commonly used in landform reconstruction due to its erosive stability and physical ...
proof pdf
... C storage4,7,29 . This omission is also relevant because minerals and aggregates are involved in soil C responses to perturbations3,7,29 . For example, soil mineralogy may influence the stabilization of microbial byproducts and the temperature sensitivity of organic matter sorption and desorption. T ...
... C storage4,7,29 . This omission is also relevant because minerals and aggregates are involved in soil C responses to perturbations3,7,29 . For example, soil mineralogy may influence the stabilization of microbial byproducts and the temperature sensitivity of organic matter sorption and desorption. T ...
Warming and increased precipitation individually influence soil
... by the end of 21st century, and precipitation regimes are simultaneously predicted to change regionally and globally (IPCC, 2007). Synchronous changes in temperature and precipitation can have profound effects on regional and global carbon (C) cycles (Luo et al., 2008). It is estimated that more tha ...
... by the end of 21st century, and precipitation regimes are simultaneously predicted to change regionally and globally (IPCC, 2007). Synchronous changes in temperature and precipitation can have profound effects on regional and global carbon (C) cycles (Luo et al., 2008). It is estimated that more tha ...
Soil inorganic carbon storage pattern in China
... The content of SIC showed a positive correlation with elevation and a negative one with MAP for investigated profiles, as well as for each depth increment (excepting 0.5–1.0 m vs. elevation, Table 2). The positive correlation between elevation and SIC content is attributed to the decreasing MAP and ...
... The content of SIC showed a positive correlation with elevation and a negative one with MAP for investigated profiles, as well as for each depth increment (excepting 0.5–1.0 m vs. elevation, Table 2). The positive correlation between elevation and SIC content is attributed to the decreasing MAP and ...
Impact of climate change on soil frost under snow cover in a forested
... Typical maximum annual soil frost depths in centraleastern Finland are 15 to 20 cm. In northern Finland, both snow depth and frost sum have larger values than in central-eastern Finland, and on average the maximum annual soil frost depths are greater than 100 cm. The thickness of the snow cover is i ...
... Typical maximum annual soil frost depths in centraleastern Finland are 15 to 20 cm. In northern Finland, both snow depth and frost sum have larger values than in central-eastern Finland, and on average the maximum annual soil frost depths are greater than 100 cm. The thickness of the snow cover is i ...
i. Title Rapid carbon turnover beneath shrub and tree vegetation is
... litter than the existing vegetation could lead to C sequestration in the soil and therefore a ...
... litter than the existing vegetation could lead to C sequestration in the soil and therefore a ...
Quantifying Mineral Dust Mass Budgets:Terminology
... sources alters the circulation, which feeds back upon dust emission from natural sources. Perlwitz et al.[2001] estimate that this feedback changes the global dust load by roughly 15%, so that disentangling these second-order effects is probably of little practical importance. Recent studies show a ...
... sources alters the circulation, which feeds back upon dust emission from natural sources. Perlwitz et al.[2001] estimate that this feedback changes the global dust load by roughly 15%, so that disentangling these second-order effects is probably of little practical importance. Recent studies show a ...
Climate and Land Degradation - Integrated Drought Management
... erosion caused by wind and/or water; (ii) deterioration of the physical, chemical, and biological or economic properties of soil; and (iii) long-term loss of natural vegetation." According to UNCCD, over 250 million people are directly affected by land degradation. In addition, some one billion peop ...
... erosion caused by wind and/or water; (ii) deterioration of the physical, chemical, and biological or economic properties of soil; and (iii) long-term loss of natural vegetation." According to UNCCD, over 250 million people are directly affected by land degradation. In addition, some one billion peop ...
Climate and Land Degradation - The World AgroMeteorological
... erosion caused by wind and/or water; (ii) deterioration of the physical, chemical, and biological or economic properties of soil; and (iii) long-term loss of natural vegetation." According to UNCCD, over 250 million people are directly affected by land degradation. In addition, some one billion peop ...
... erosion caused by wind and/or water; (ii) deterioration of the physical, chemical, and biological or economic properties of soil; and (iii) long-term loss of natural vegetation." According to UNCCD, over 250 million people are directly affected by land degradation. In addition, some one billion peop ...
Soil drying in Europe and its impact on atmospheric
... same time scale. A range of models showed quite a range of degrees to which this coupling is realized, but a number of areas (hotspots) emerged in transitional climate regimes where sufficient dependence of evaporation on soil moisture and sufficient sensitivity of precipitation formation to atmosph ...
... same time scale. A range of models showed quite a range of degrees to which this coupling is realized, but a number of areas (hotspots) emerged in transitional climate regimes where sufficient dependence of evaporation on soil moisture and sufficient sensitivity of precipitation formation to atmosph ...
Regenerative Organic Agriculture and Climate Change
... Sequestration means maximizing the carbon dioxide pulled from the atmosphere by plant growth and minimizing the loss of that carbon once it is stored in soil. In technical terms, it is the net difference between atmospheric carbon fixed through photosynthesis and carbon respired from all ecosystem c ...
... Sequestration means maximizing the carbon dioxide pulled from the atmosphere by plant growth and minimizing the loss of that carbon once it is stored in soil. In technical terms, it is the net difference between atmospheric carbon fixed through photosynthesis and carbon respired from all ecosystem c ...
Agricultural activities and the global carbon cycle
... species diversity of soil fauna. Accelerated soil erosion is the principal degradative process. Together with the desertification in dry regions, vast areas of soil are affected globally by water and wind erosion 共Dregne 1992; Oldeman 1994兲. In addition to decreasing productivity and the quantity/qu ...
... species diversity of soil fauna. Accelerated soil erosion is the principal degradative process. Together with the desertification in dry regions, vast areas of soil are affected globally by water and wind erosion 共Dregne 1992; Oldeman 1994兲. In addition to decreasing productivity and the quantity/qu ...
Longterm changes in forest carbon under temperature and nitrogen
... budget for the Harvard forest based on annual estimates of litterfall, soil respiration, fine root biomass, soil C fractionation, 14C of soil C pools, and soil 14CO2 efflux. This multiple SOM pool model is based on the concepts of the original CENTURY model (Parton, 1987). Gaudinski estimated that < ...
... budget for the Harvard forest based on annual estimates of litterfall, soil respiration, fine root biomass, soil C fractionation, 14C of soil C pools, and soil 14CO2 efflux. This multiple SOM pool model is based on the concepts of the original CENTURY model (Parton, 1987). Gaudinski estimated that < ...
Intensified plant N and C pool with more available nitrogen under
... as 160 Pg C in the 0–25 m depth (Mu et al., 2015), equivalent to ...
... as 160 Pg C in the 0–25 m depth (Mu et al., 2015), equivalent to ...
Soils and Climate Change: Gas Fluxes and Soil Processes
... will impact soil organic matter dynamics, including soil organisms and the multiple soil properties that are tied to organic matter, soil water, and soil erosion. The exact direction and magnitude of those impacts will be dependent on the amount of change in atmospheric gases, temperature, and preci ...
... will impact soil organic matter dynamics, including soil organisms and the multiple soil properties that are tied to organic matter, soil water, and soil erosion. The exact direction and magnitude of those impacts will be dependent on the amount of change in atmospheric gases, temperature, and preci ...
Linking the scales of process, observation and modeling of dust
... Dust processes span more than twelve orders of magnitude in spatial and temporal scales, from individual grain-to-grain collisions that take place in fractions of a second, to global transport of dust over glacial-interglacial cycles (Figure 1a). The methods used to study dust-cycle processes must t ...
... Dust processes span more than twelve orders of magnitude in spatial and temporal scales, from individual grain-to-grain collisions that take place in fractions of a second, to global transport of dust over glacial-interglacial cycles (Figure 1a). The methods used to study dust-cycle processes must t ...
A mechanism for dust-induced destabilization of
... 1997). This scavenging by wet deposition is the primary process by which fine aerosol is removed from the upper troposphere. We can obtain the reduction in precipitation scavenging in the upper troposphere because it is directly related to the shortwave radiation absorption induced decrease in deep ...
... 1997). This scavenging by wet deposition is the primary process by which fine aerosol is removed from the upper troposphere. We can obtain the reduction in precipitation scavenging in the upper troposphere because it is directly related to the shortwave radiation absorption induced decrease in deep ...
IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS)
... Keywords:Correlation, Gujarat, Seasons, Soil, Regression. ...
... Keywords:Correlation, Gujarat, Seasons, Soil, Regression. ...
Rapid climate variability during warm and cold periods in
... Written on invitation of the Editorial Board ...
... Written on invitation of the Editorial Board ...
- Department of Biological Sciences
... Changes in Carbon following Forest Soil Transplants along an Altitudinal Gradient Garten CT, 2008, Communications in Soil Science and Plant Analysis, 39, 2883 - 2893 ...
... Changes in Carbon following Forest Soil Transplants along an Altitudinal Gradient Garten CT, 2008, Communications in Soil Science and Plant Analysis, 39, 2883 - 2893 ...