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Volume 12, issue 22
Biogeosciences, 12, 6529–6571, 2015
https://doi.org/10.5194/bg-12-6529-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 12, 6529–6571, 2015
https://doi.org/10.5194/bg-12-6529-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 18 Nov 2015

Research article | 18 Nov 2015

Edaphic, structural and physiological contrasts across Amazon Basin forest–savanna ecotones suggest a role for potassium as a key modulator of tropical woody vegetation structure and function

J. Lloyd et al.

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Cited articles

Ahmad, I. and Maathuis, F. J. M.: Cellular and tissue distribution of potassium: physiological relevance, mechanisms and regulation, J. Plant Physiol., 171, 708–714, https://doi.org/10.1016/j.jplph.2013.10.016, 2014.
Ahuja, L., Naney, J., Green, R., and Nielsen, D.: Macroporosity to characterize spatial variability of hydraulic conductivity and effects of land management, Soil Sci. Soc. Am. J., 48, 699–702, 1984.
Aidar, M., Schmidt, S., Moss, G., Stewart, G., and Joly, C.: Nitrogen use strategies of neotropical rainforest trees in threatened Atlantic Forest, Plant Cell Environ., 26, 389–399, 2003.
Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop Evapotranspiration – Guidelines for Computing Crop Water Requirements – FAO Irrigation and Drainage Paper 56, FAO, Rome, 300, 6541, 1998.
Alvarez-Clare, S., Mack, M., and Brooks, M.: A direct test of nitrogen and phosphorus limitation to net primary productivity in a lowland tropical wet forest, Ecology, 94, 1540–1551, 2013.
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Across tropical South America, forest soils are typically of a higher cation status than their savanna equivalents with soil exchangeable potassium a key soil nutrient differentiating these two vegetation types. Differences in soil water storage capacity are also important – interacting with both potassium availability and precipitation regimes in a relatively complex manner.
Across tropical South America, forest soils are typically of a higher cation status than their...
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