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The global carbon cycle: a test of our knowledge of earth as a system.
It is concluded that although natural processes can potentially slow the rate of increase in atmospheric CO2, there is no natural "savior" waiting to assimilate all the anthropogenically produced CO2 in the coming century.
Foliar analysis for detecting and correcting nutrient imbalances in Norway spruce
Linder, S. 1995. Foliar analysis for detecting and correcting nutrient imbalances inNorway spruce. - Ecol. Bull. (Copenhagen) 44: 118-19O.Results are presented from the first seven years of a
The three objectives of this paper were: to summarize net primary production (NPP) and carbon allocation patterns for boreal forests, to examine relationships between climatic and biological
The likely impact of elevated [CO2], nitrogen deposition, increased temperature and management on carbon sequestration in temperate and boreal forest ecosystems: a literature review.
Temperate and boreal forest ecosystems contain a large part of the carbon stored on land, in the form of both biomass and soil organic matter. Increasing atmospheric [CO2], increasing temperature,
The effect of water and nutrient availability on the productivity of Norway spruce in northern and southern Sweden
Abstract Results from two yield optimisation experiments in young stands of Norway spruce in northern and south-eastern Sweden are presented after 10 and 9 years' treatment, respectively. The aim of
Performance of the LAI-2000 plant canopy analyzer in estimating leaf area index of some Scots pine stands.
The LAI-2000 plant canopy analyzer was tested at six experimental plots of Scots pine in central Sweden at peak leaf area in August and after litterfall in October 1990 and it was shown that if shoots, instead of individual needles, are randomly distributed in the canopy, L(Li-Cor) corresponds to L multiplied by a factor (beta) characterizing the mutual shading of needles on the shoot.
High temporal resolution tracing of photosynthate carbon from the tree canopy to forest soil microorganisms.
Simultaneous labelling of the soil with (15)NH(+)(4) showed that the ectomycorrhizal roots, which were the strongest sinks for photosynthate, were also the most active sinks for soil nitrogen, highlighting the close temporal coupling between tree canopy photosynthesis and a significant fraction of soil activity in forests.
The response of heterotrophic CO2 flux to soil warming
In a forest ecosystem at steady state, net carbon (C) assimilation by plants and C loss through soil and litter decomposition by heterotrophic organisms are balanced. However, a perturbation to the
Feedback interactions between needle litter decomposition and rhizosphere activity
The results indicate mutual positive feedbacks between litter decomposition and rhizosphere activity and a significant interaction between girdling and litter treatments over the same period.
Fertilization of boreal forest reduces both autotrophic and heterotrophic soil respiration
The boreal forest is expected to experience the greatest warming of all forest biomes, raising concerns that some of the large quantities of soil carbon in these systems may be added to the