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 Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University

nachricht New findings about the deformed wing virus, a major factor in honey bee colony mortality
11.11.2016 | Veterinärmedizinische Universität Wien

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: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

NTU scientists build new ultrasound device using 3-D printing technology

07.12.2016 | Health and Medicine

The balancing act: An enzyme that links endocytosis to membrane recycling

07.12.2016 | Life Sciences

How to turn white fat brown

07.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>