Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

A new cartographic method for determining carbon reserves in Indian soils

30.11.2007
The amount of carbon stored in the soil depends on the temperature, rainfall, soil texture and pH, the geological substrate and the type of vegetation covering the soil.

In today's world, with global warming, soil carbon reserves are in the spotlight. Certain research programmes are looking to boost those reserves, and it was this issue that prompted a team from CIRAD and its partners to develop a way of mapping soil carbon reserves that is more accurate than those often used in the past. The method takes account of data relating to both land use and environmental parameters.

It was developed in India, at the centre of one of the 25 hot spots defined by biodiversity protection specialists. The new method comprises two stages. In the first, existing data are used to establish a model that subsequently serves to estimate carbon reserves depending on environmental parameters: location, geological substrate, physiographic information, plant cover and soil composition (gravel, clay, loam, sand, and obviously carbon).

In the case of India, these parameters were established for 361 soil profiles representing 1643 soil horizons selected based on numerous surveys and studies in the zone. The parameters were used to compile a database for the model. The model was then coupled with a geographic information system (GIS) containing maps of the same environmental parameters, so as to calculate carbon reserves at any point in the zone. The results obtained from these data for the different ecosystems encountered confirmed the mean values quoted by the Intergovernmental Panel on Climate Change (IPCC). The method can also be used for other geographical zones, provided the relevant database is available for the zone in question.

The tool serves to support decision-making with a view to protecting the environment as regards the carbon issue. In particular, it can take account of changes in land use, which was not the case with the methods often used in the past. These changes obviously have to be taken into account when thinking about carbon management.

The method was developed and tested as part of a joint project by CIRAD and the National Bureau of Soil Survey and Land Use Planning in Bangalore (India), funded by the Centre franco-indien pour la promotion de la recherche avancée (CEFIPRA). The project set out to study the impact of the steps taken to conserve forests and the biodiversity they contain on changes in soil carbon reserves over the past 20 years. In the next stage of the project, researchers will be comparing the reserves calculated for a recent date (1999) with a previous date (1977), so as to assess the variations linked to changes in land use.

Helen Burford | alfa
Further information:
http://www.cirad.fr/en/actualite/communique.php?id=829

More articles from Agricultural and Forestry Science:

nachricht Faba fix for corn's nitrogen need
11.04.2018 | American Society of Agronomy

nachricht Wheat research discovery yields genetic secrets that could shape future crops
09.04.2018 | John Innes Centre

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: BAM@Hannover Messe: innovative 3D printing method for space flight

At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.

Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...

Im Focus: Molecules Brilliantly Illuminated

Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.

Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Getting electrons to move in a semiconductor

25.04.2018 | Physics and Astronomy

Reconstructing what makes us tick

25.04.2018 | Physics and Astronomy

Cheap 3-D printer can produce self-folding materials

25.04.2018 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>