Institute of Forest Ecosystems
Alfred-Möller-Straße 1, Haus 41/42
Phone: +49 3334 3820 300
Fax: +49 3334 3820 354
Forests may serve as important sinks for carbon. Germany obliged itself in international conventions to report annually about changes in the carbon storage of forests, caused by, for example natural processes like tree growth or forest management. The purpose of the Inventory Study 2008 was to determine the current carbon stock of the forests in germany.
The forest management in Germany is credited, in the context of the obligation to reduce greenhouse gas emissions, under Article 3.4 of the Kyoto Protocol. At the beginning of the commitment period in 2008, it was necessary to determine the carbon stocks of the German forests. At the end of the commitment period, 2012, the Third National Forest Inventory (BWI3) will be conducted to determine the carbon stock change in the forests of Germany.
To determine an initial carbon stock for the so-called "first commitment period" of the Kyoto Protocol (2008-2012), the "Inventory Study 2008" (IS08) was conducted. The inventory design of the IS 08 was similar to the BWI and was conducted on parts of the BWI-sample points. In 2008 the forest area in germany amounted to approx. 11,1 mio hectar. In a grid of 8 km x 8 km, approx. 2300 inventory samples (wings) from the network of the BWI were recorded. Each wing consists of a square with a side length of 150 m. If at least one wing of the corners is located in a forest, the tract is classified as a forest tract. At every accessible forest tract (6700 in total) existing trees, dead wood and rejuvenation was inventoried. The sampling conducted by a two-person inventory team durated 45 minutes on average per forest tract. From the data of 48.000 sampled trees with a DBH of at least 7 cm, the calculation of biomass and carbon stocks in the forest was derived subsequently. At first, according to its species, height and diameter, the entire above-ground volume was calculated for every sample tree, which was then multiplied with the medium density of the wood to obtain the biomass. For the determination of the below-ground biomass (roots), general approaches abstracted from the international guidelines for inventory preparation, were used.
1.2008 - 6.2009
Project status: finished