“Woah! It's like Spotify but for academic articles.”

Instant Access to Thousands of Journals for just $7.50/month

Get 2 Weeks Free

Carbon budgets of three temperate forest ecosystems in Dongling Mt., Beijing, China

Carbon budgets of three temperate forest ecosystems in Dongling Mt., Beijing, China There is a general agreement that forest ecosystems in the Northern Hemisphere function as significant sinks for atmospheric CO 2 ; however, their magnitude and distribution remain large uncertainties. In this paper, we report the carbon (C) stock and its change of vegetation, forest floor detritus, and mineral soil, annual net biomass increment and litterfall production, and respiration of vegetation and soils between 1992 to 1994, for three temperate forest ecosystems, birch ( Betula platyphylla ) forest, oak ( Quercus liaotungensis ) forest and pine ( Pinus tabulaeformis ) plantation in Mt. Dongling, Beijing, China. We then evaluate the C budgets of these forest ecosystems. Our results indicated that total C density (organic C per hectare) of these forests ranged from 250 to 300 t C ha −1 , of which 35–54 t C ha −1 from vegetation biomass C and 209–244 t C ha −1 from soil organic C (1 m depth, including forest floor detritus). Biomass C of all three forests showed a net increase, with 1.33–3.55 t C ha −1 a −1 during the study period. Litterfall production, vegetation autotrophic respiration, and soil heterotrophic respiration were estimated at 1.63–2.34, 2.19–6.93, and 1.81–3.49 t C ha −1 a −1 , respectively. Ecosystem gross primary production fluctuated between 5.39 and 12.82 t C ha −1 a −1 , about half of which (46%–59%, 3.20–5.89 t C ha −1 a −1 ) was converted to net primary production. Our results suggested that pine forest fixed C of 4.08 t ha −1 a −1 , whereas secondary forests (birch and oak forest) were nearly in balance in CO 2 exchange between the atmosphere and ecosystems. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Science in China Series D: Earth Sciences Springer Journals
Loading next page...
 
/lp/springer-journal/carbon-budgets-of-three-temperate-forest-ecosystems-in-dongling-mt-3hhNc20Lo0

You're reading a free preview. Subscribe to read the entire article.

And millions more from thousands of peer-reviewed journals, for just $7.50/month

Get 2 Weeks Free

To be the best researcher, you need access to the best research

  • With DeepDyve, you can stop worrying about how much articles cost, or if it's too much hassle to order — it's all at your fingertips. Your research is important and deserves the top content.
  • Read from thousands of the leading scholarly journals from Springer, Elsevier, Nature, IEEE, Wiley-Blackwell and more.
  • All the latest content is available, no embargo periods.

Stop missing out on the latest updates in your field

  • We’ll send you automatic email updates on the keywords and journals you tell us are most important to you.
  • There is a lot of content out there, so we help you sift through it and stay organized.