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The knowns, known unknowns and unknowns of sequestration of soil organic carbon
Soil contains approximately 2344 Gt (1 gigaton = 1 billion tonnes) of organic carbon globally and is the largest terrestrial pool of organic carbon. Small changes in the soil organic carbon stockExpand
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  • Open Access
The redistribution of soil water by tree root systems
Plant roots transfer water between soil layers of different water potential thereby significantly affecting the distribution and availability of water in the soil profile. We used a modification ofExpand
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Nutrient cycling in forests
SUMMARY Studies of nutrient cycling in forests span more than 100 yr. In earlier years, most attention was given to the measurement of the pools of nutrients in plants and soil and of the return ofExpand
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Growth and nutrient content of perennial grasslands following burning in semi-arid, sub-tropical Australia
Fire often increases the productivity of perennial tussock grasslands inmesic environments but can reduce growth for one or more growing seasons inaridand semi-arid environments. We examined effectsExpand
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Carbon and oxygen isotope composition of organic compounds in the phloem sap provides a short‐term measure for stomatal conductance of European beech (Fagus sylvatica L.)
At eight different dates during the 2000 growing season, d d d 13 C and d 18 O were determined in the phloem of adult beech trees growing in natural beech stands in south-west Germany differing inExpand
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  • Open Access
Photosynthesis-Rubisco relationships in foliage of Pinus sylvestris in response to nitrogen supply and the proposed role of Rubisco and amino acids as nitrogen stores
Relationships between photosynthetic capacity, and needle contents of N, Rubisco and amino acids were investigated in potted Pinus sylvestris L. trees. Three-year-old seedlings of P. sylvestris wereExpand
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Short-term variation in the isotopic composition of organic matter allocated from the leaves to the stem of Pinus sylvestris: effects of photosynthetic and postphotosynthetic carbon isotope
We aimed to quantify the separate effects of photosynthetic and postphotosynthetic carbon isotope discrimination on d 13 C of the fast-turn-over carbon pool (water soluble organic carbon and CO2Expand
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PTR-MS analysis of reference and plant-emitted volatile organic compounds
Abstract Proton transfer reaction-mass spectrometry (PTR-MS) was applied to the analysis of a series of volatile organic compounds (VOCs) that emit from various plants. These include a group ofExpand
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Distribution of N, Rubisco and photosynthesis in Pinus pinaster and acclimation to light
The light–nitrogen hypothesis suggests canopy photosynthesis is maximized when there is a positive relationship between irradiance received by foliage, its nitrogen content (per unit area Narea), andExpand
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