There is no author summary for this book yet. Authors can add summaries to their books on ScienceOpen to make them more accessible to a non-specialist audience.

Zusammenfassung

Eine Reduzierung von Treibhausgasen kann durch eine veränderte Landnutzung erfolgen. Dies ist dann der Fall, wenn Landnutzung vermieden wird sowie wenn Landwirtschaft und Forstwirtschaft dazu beitragen, dass Treibhausgase der Atmosphäre entzogen werden. Die entscheidenden Größen hierfür sind Aufforstung statt Entwaldung, eine veränderte Landwirtschaft und der Schutz kohlenstoffreicher Böden (Moore). In Deutschland machen Emissionen aus der Landwirtschaft und aus der Trockenlegung kohlenstoffreicher Böden rund ein Achtel der Treibhausgasemissionen aus. Die Wälder waren in der Vergangenheit Kohlenstoffsenken, doch angesichts steigender Holznachfrage und der Erkrankung großer Waldgebiete ist es fraglich, ob dies auch zukünftig so bleibt. Die Wiedervernässung von Mooren, Aufforstungen, geänderte Viehhaltung und andere Maßnahmen besitzen hohe Emissionsminderungspotenziale. Die aktuellen Klimaschutzziele machen daher umfangreiche Maßnahmen und eine Transformation der Landnutzung notwendig.

Related collections

Most cited references 17

Record: found
Abstract: found
Article: not found

Old-growth forests as global carbon sinks.

Sebastiaan Luyssaert, E Detlef Schulze, Annett Börner … (2008)

Old-growth forests remove carbon dioxide from the atmosphere at rates that vary with climate and nitrogen deposition. The sequestered carbon dioxide is stored in live woody tissues and slowly decomposing organic matter in litter and soil. Old-growth forests therefore serve as a global carbon dioxide sink, but they are not protected by international treaties, because it is generally thought that ageing forests cease to accumulate carbon. Here we report a search of literature and databases for forest carbon-flux estimates. We find that in forests between 15 and 800 years of age, net ecosystem productivity (the net carbon balance of the forest including soils) is usually positive. Our results demonstrate that old-growth forests can continue to accumulate carbon, contrary to the long-standing view that they are carbon neutral. Over 30 per cent of the global forest area is unmanaged primary forest, and this area contains the remaining old-growth forests. Half of the primary forests (6 x 10(8) hectares) are located in the boreal and temperate regions of the Northern Hemisphere. On the basis of our analysis, these forests alone sequester about 1.3 +/- 0.5 gigatonnes of carbon per year. Thus, our findings suggest that 15 per cent of the global forest area, which is currently not considered when offsetting increasing atmospheric carbon dioxide concentrations, provides at least 10 per cent of the global net ecosystem productivity. Old-growth forests accumulate carbon for centuries and contain large quantities of it. We expect, however, that much of this carbon, even soil carbon, will move back to the atmosphere if these forests are disturbed.

0 comments Cited 459 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: found

Is Open Access

Negative emissions—Part 2: Costs, potentials and side effects

Thorben Amann, Felix Creutzig, Jérôme Hilaire … (2018)

0 comments Cited 377 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

Characterization of biochars produced from cornstovers for soil amendment.

James Lee, Michelle Kidder, Barbara R. Evans … (2010)

Through cation exchange capacity assay, nitrogen adsorption-desorption surface area measurements, scanning electron microscopic imaging, infrared spectra and elemental analyses, we characterized biochar materials produced from cornstover under two different pyrolysis conditions, fast pyrolysis at 450 °C and gasification at 700 °C. Our experimental results showed that the cation exchange capacity (CEC) of the fast-pyrolytic char is about twice as high as that of the gasification char as well as that of a standard soil sample. The CEC values correlate well with the increase in the ratios of the oxygen atoms to the carbon atoms (O:C ratios) in the biochar materials. The higher O:C ratio was consistent with the presence of more hydroxyl, carboxylate, and carbonyl groups in the fast pyrolysis char. These results show how control of biomass pyrolysis conditions can improve biochar properties for soil amendment and carbon sequestration. Since the CEC of the fast-pyrolytic cornstover char can be about double that of a standard soil sample, this type of biochar products would be suitable for improvement of soil properties such as CEC, and at the same time, can serve as a carbon sequestration agent.

0 comments Cited 106 times – based on 0 reviews      Review now

Bookmark

All references

Author and book information

Book Chapter

Publication date (Print): 2023

Publication date (Online): February 17 2024

Pages: 439-448

DOI: 10.1007/978-3-662-66696-8_34

SO-VID: 90d3cd60-c6b3-40f9-96f7-b22c886ef35c

History

Data availability:

Emissionsreduktionen durch ökosystembasierte Ansätze

Read this book at

Zusammenfassung

Related collections

Informationspraxis

Most cited references 17

Old-growth forests as global carbon sinks.

Negative emissions—Part 2: Costs, potentials and side effects

Characterization of biochars produced from cornstovers for soil amendment.

Author and book information

Book Chapter

History

Comments

Comment on this book

Book chapters

Similar content 26