2015
DOI: 10.1016/j.soilbio.2014.12.021
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Plant and microbial uptake of nitrogen and phosphorus affected by drought using 15N and 32P tracers

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Cited by 93 publications
(54 citation statements)
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“…Plants and microbes often compete for key nutrients in nutrient poor systems, however microbes can also facilitate plant nutrient uptake by boosting N and P mineralisation in the rhizosphere (Marschner et al, 2011;Dijkstra et al, 2015). The NP colimitation effect on nutrient cycling reported here has not been widely reported elsewhere.…”
Section: Impact Of N Additionmentioning
confidence: 71%
“…Plants and microbes often compete for key nutrients in nutrient poor systems, however microbes can also facilitate plant nutrient uptake by boosting N and P mineralisation in the rhizosphere (Marschner et al, 2011;Dijkstra et al, 2015). The NP colimitation effect on nutrient cycling reported here has not been widely reported elsewhere.…”
Section: Impact Of N Additionmentioning
confidence: 71%
“…Nitrification declines under low osmotic potentials (Stark & Firestone, ), and in drying soils, a larger fraction of nitrified N can escape as NO (Figure b; Davidson et al, ; Homyak et al, ; Homyak et al, ), which, together, imply that NO 3 − production could have declined. Similarly, the processes consuming NO 3 − probably also declined; plant NO 3 − uptake declines under drought stress (Dijkstra et al, ; Meng et al, ) as do N 2 O emissions (Figure ). Thus, NO 3 − concentrations may not have changed because reductions in production and consumption of NO 3 − offset one another (Figure b).…”
Section: Discussionmentioning
confidence: 96%
“…Indeed, the decrease in soil moisture can strongly reduce N mobility in the soil due to lower diffusion and mass flow (Lambers, Chapin & Pons 2008). As a consequence, this may considerably limit root access to N pools and reduce plant N uptake (Dijkstra et al 2015), especially for species that strongly depend on this resource (i.e., dominant species). We therefore suggest that the increase in soil N availability observed in our experiment was primarily due to reduced N uptake of the drought-sensitive dominant species.…”
Section: Discussionmentioning
confidence: 99%