Carbon and forest

Xem 1-20 trên 91 kết quả Carbon and forest
  • Sustainable forest management (SFM) is not a new concept. However, its popularity has increased in the last few decades because of public concern about the dramatic decrease in forest resources. SFM is generally implemented using criteria and indicators (C&I) that define forest management standards, and several countries have established their own sets of C&I within the framework of different international or regional processes. Nevertheless, none of the C&I systems have been universally accepted and future research should consider the current and future indicators....

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  • The present study was carried out to quantify the changes in tree diversity and aboveground biomass in three different forest types existed in the Kodagu district of Central Western Ghats. Data on species richness, diversity, composition, above ground biomass (AGB) of trees, shrub and herbs, carbon stock were collected from 120 sample plots of 400 m 2 . Results revealed that evergreen forests recorded higher richness (141 species), diversity, density, basal area, biomass and carbon than other two forest types of the district. AGB from three forest types ranged from 175 to 233 Mg ha–1 .

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  • The  value of  the UK  LCEGS  sector was £106.5 billion  in 2007/8.  In  terms of  size,  this puts  the  low  carbon  and  environmental  economy  somewhere  between  the  UK’s  healthcare  and  construction  sectors.   The UK is the world’s sixth largest low carbon and environmental economy, with 3.5% of global market  share.  As  shown  in  Figure 2,  the  Environmental  sector  accounts  for £22.3 billion  (21%) of  total UK  market  value,  Renewable  Energy  for  £31.1  billion  (29%),  and  the  Emerging  Low  Carbon  sector  for  £53.3 billion (50%).

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  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Carbon and mineral nutrient pools in a gallery forest at Mogi Guaçu River, Southeast Brazil...

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  • Soil organic carbon (SOC) content is key component of the global carbon (C) cycle which is highly variable with respect to space and time. The main objective of this study was to provide an assessment of soil organic carbon (SOC) stock variability for Uttarakhand state. The other objective of this study was to evaluate the performance of different pedotransfer functions for reliable assessment of bulk density. Soil Resource Mapping for Uttarakhand state was conducted on 1:50,000 scale with the help of Satellite imagery (LISS III) along with exhaustive ground truthing through soil surveys.

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  • The microbial biomass of soil is being increasingly recognized as a sensitive indicator of soil quality. Its knowledge is fundamental for sustainable environmental management. This study aimed to determine the impact of different land uses (forest, pasture, and agricultural lands) on soil microbial biomass carbon and nitrogen using the chloroform fumigation extraction (CFE) method.

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  • Blue pine (Pinus wallichiana) plantations in Kashmir forests have been noticed to be affected by blight diseases showing typical symptoms of shoot blight, die-back and curling of terminal shoots. Plants grown in nutritionally poor soils are more susceptible to diseases. The type of major nutrient supplementation plays a major role in predisposition of plant to the infection by needle blight pathogens. Three fungi were isolated from the infected needles of Blue pine bearing fructification.

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  • A study was carried out to investigate the impact of altitude in soil physical and chemical properties in dry deciduous forest of Western Ghats of Tamil Nadu. Totally fifteen soil sample were collected from altitude of 416 m to 965 m. Soil physical and chemical properties such as pH, EC, Bulk density, organic carbon and water soluble carbon were studied with respect to altitude of the soil.

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  • This study was conducted to evaluate carbon accumulation in a mangrove plantation containing one species of Mangrove tree (Kandelia obovata Sheue, Liu & Yong) in Giao Thuy District, Nam Dinh Province, Vietnam. Sixteen sample plots were established and surveyed from December 2008 to May 2010 in order to determine the amount of carbon present in the trees and forest soil.

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  • These research teams study for example the impact and mechanisms of greenhouse gas emissions and atmospheric pollutant on climate, ozone depletion and carbon sinks (oceans and inland waters, forests and soil). They do research to understand the mechanisms and assess the impact of global change on the water cycle, water quality and availability, as well as soil functions and quality to provide the bases for management tools for sustainable water systems. Biodiversity and ecosystems are analysed to understand and minimise the negative impacts of human activities.

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  • Forests play a major role in global carbon (C) cycle, and the carbon density (CD) could reflect its ecological function of C sequestration. Study on the CD of different forest types on a community scale is crucial to characterize in depth the capacity of forest C sequestration.

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  • Forest ecosystems cover large parts of the terrestrial land surface and are major components of the terrestrial carbon (C) cycle. Most important, forest ecosystems accumulate organic compounds with long C residence times in vegetation, detritus and, in particular, the soil by the process of C sequestration. Trees, the major components of forests, absorb large amounts of atmospheric carbon dioxide (CO2) by photosynthesis, and forests return an almost equal amount to the atmosphere by auto- and heterotrophic respiration.

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  • Chapter 11 Soil Carbon Accumulation in Old-Growth Forests An area of 4.1 billion ha land is covered with boreal, temperate and tropical forest, together comprising up to 80% of the terrestrial aboveground carbon and 40% of total soil carbon

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  • Many have gone above and beyond the call of duty to make this special issue possible. The editorial team at Forced Migration Review has been the anchor on which we have all relied. The authors of the articles and those who submitted pieces we could not include deserve special recognition. Their work was done after-hours, often in the field during time they did not have. Ricardo Ernst, my fellow guest editor, has been an able partner responding with feed- back from all corners of the globe.

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  • Though the fraction of energy-related CAP emissions for the wood products sector is larger than the energy-related fraction for pulp and paper, due to the greater energy requirements of the pulp and paper industry, on a ton-basis energy-related CAP emissions are much larger for the pulp and paper sector than they are for wood products sector.

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  • Chapter 14 Biomass Chronosequences of United States Forests: Implications for Carbon Storage and Forest Management Forest Management and Carbon Sequestration Forests account for a large fraction of the carbon stored in global soils and vegetation (Dixon et al. 1994).

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  • Just under a third (31%) of overall activity in this sector is in manufacturing, with the highest levels of  manufacturing  in  the Wind  and  Carbon  Capture  &  Storage  sectors ‐  the  latter  a  reflection  of  the  current drive to prove the technology through pilot projects. Given the size of the LCEGS sector and its  growth  rate  in  both  domestic  and  global  markets,  environmental  activities  offer  an  attractive  opportunity for the UK’s manufacturing base to exploit current and emerging technologies.

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  • Chapter 12Is There a Theoretical Limit to Soil Carbon Storage in Old-Growth Forests? A Model Analysis with Contrasting Approaches Apart from the intrinsic worth that nature and forests have due merely to their existence, old-growth forests have always provided a number of additional values through their function as regulators of the water cycle

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  • Oracle Real Application Clusters (RAC)1 is an option to the award-winning Oracle Database Enterprise Edition. Oracle RAC is a cluster database with a shared cache architecture that overcomes the limitations of traditional shared-nothing and shared-disk approaches to provide highly scalable and available database solutions for all your business applications. Oracle RAC is a key component of Oracle’s enterprise grid architecture and cloud foundation.

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  • Diamond crystals form deep within the mantle of the earth when carbon is exposed to extreme pressure and very high temperatures. Volcanic rock formations such as kimberlite or lamproite pipes serve as pathways that convey the fragments of rocks and crystals from the mantle to the surface (see.Figure.1). The diamonds, along with vast quantities of magma, are blasted upward in the course of violent eruptions. Kimberlite pipes, the richest source of mined diamonds, are usually shaped like a carrot and can extend as deep as 1 to 2 kilometers underground.

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