Rate of change of pine litter fall and decay in response to changing climate along N-S transect

• Autorzy: Breymeyer A
• Języki publikacji: EN

Abstrakty

EN

The response of pine ecosystems to changing latitude and thermoclimate in Central/Northern Europe was investigated through the measurements of rates of two ecosystem processes: organic matter (litter) production and decomposition. Studies were carried out at nine sites of pine and mixed pine forests placed along the N-S transect of about 2000 km crossing Finland, Estonia, Latvia, Lithuania and Poland. Warmer climates were observed with movement to southern sites; the coefficient of determination (R2) between annual long-term temperature and latitude was at the level of 0.99. The rates of change of both processes were compared in terms of relative increment per 1°C of long-term temperature and per -1° of latitude, and expressed in %. Litter production responds stronger to the southward change of climate: the fall of litter is 18-19% greater per +1°C of average annual temperature and by 8% greater per each -1° of latitude, compared to the decomposition process, which was accelerated at the rate of 9-12% per 1°C and 4-5% per -1° of latitude. These results are summarized by the statement that in pine ecosystems the OM Production Sub-system is more sensitive to change of climate than the Sub-system of OM Decay, which is more conservative.

Słowa kluczowe

EN

pine ecosystem; transect study; decay; pine litter; changing climate; ecosystem response; decomposition; climate; pine forest; climate change

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2003
• Tom: 51
• Numer: 4
• Opis fizyczny: p.553-555,fig.,ref.

Twórcy

autor

Breymeyer A

• Polish Academy of Sciences, Twarda 51/55, 00-818 Warsaw, Poland