2011
DOI: 10.5194/bg-8-2805-2011
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Increased phosphorus availability mitigates the inhibition of nitrogen deposition on CH<sub>4</sub> uptake in an old-growth tropical forest, southern China

Abstract: Abstract. It is well established that tropical forest ecosystems are often limited by phosphorus (P) availability, and elevated atmospheric nitrogen (N) deposition may further enhance such P limitation. However, it is uncertain whether P availability would affect soil fluxes of greenhouse gases, such as methane (CH4) uptake, and how P interacts with N deposition. We examine the effects of N and P additions on soil CH4 uptake in an N saturated old-growth tropical forest in southern China to test the following h… Show more

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Cited by 68 publications
(78 citation statements)
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“…To date, only one N-manipulation study has been published on N effects on soil CH 4 fluxes from (sub)tropical forests, and this was conducted in China (Zhang et al, 2008;Zhang et al, 2011). In this study, CH 4 uptake decreased with increasing N application rate, whereas in the disturbed and rehabilitated forest no N-addition effect was observed.…”
Section: E Veldkamp Et Al: Nitrogen-limited Methane Uptake In Tropimentioning
confidence: 82%
See 1 more Smart Citation
“…To date, only one N-manipulation study has been published on N effects on soil CH 4 fluxes from (sub)tropical forests, and this was conducted in China (Zhang et al, 2008;Zhang et al, 2011). In this study, CH 4 uptake decreased with increasing N application rate, whereas in the disturbed and rehabilitated forest no N-addition effect was observed.…”
Section: E Veldkamp Et Al: Nitrogen-limited Methane Uptake In Tropimentioning
confidence: 82%
“…These results were attributed to several possible causes: high N status, low pH values and Al toxicity (Zhang et al, 2008;Zhang et al, 2011). Although our lowland forest soil also had a high N status and our montane forest soil also had low pH and high exchangeable Al (see Sect.…”
Section: Consequences Of Chronic N Deposition On Soil Ch 4 Fluxes Fromentioning
confidence: 97%
“…The temporal variations of CH 4 uptake by forests in China were discussed in many studies (Sun, 2000;Dong et al, 2003;Du et al, 2004;Mo et al, 2006;Tang et al, 2006;Fang et al, 2009;Yang et al, 2010;Liu et al, 2010aLiu et al, , 2010bHu et al, 2011;Li, 2011;Zhang et al, 2011a;Yang, 2012;Liu et al, 2012b). Several studies reported great diurnal variations of CH 4 uptake rates with no significant relations between CH 4 uptake and soil moisture or temperature Mo et al, 2005;Yang et al, 2010;Hu et al, 2011).…”
Section: Observed Methane Uptakes In Forests In Chinamentioning
confidence: 99%
“…Sun et al (2011) reported with incubation experiments that increase in soil water content greatly decreased CH 4 uptakes of forest soil. Nitrogen addition or nitrogen deposition, especially of large amount, is also found to inhibit CH 4 uptakes, especially when nitrogen addition was relative high (Mo et al, 2005;Hu et al, 2011;Zhang et al, 2011a;Wang, 2012). In tropical forests with limited phosphorus (P) availability, Zhang et al (2011a,b) found that P addition significantly stimulated CH 4 uptakes and mitigated the inhibitive effect of N deposition on CH 4 uptake due to enhanced soil methanotrophic activity by P addition.…”
Section: Observed Methane Uptakes In Forests In Chinamentioning
confidence: 99%
“…On the contrary, PO 4 3À has also been found to stimulate the methanotrophic activity in tropical forest soil during field experiment (460 kg PO 4 3À ha À1 yr À1 ) (Zhang et al, 2011) and in landfill cover soil when added as part of NPK fertilizer in laboratory batch assays (18-60 mg P kg dw À1 ) (Jugnia et al, 2012). Comparison of the results of this study between the earlier published results is difficult due to the variation in the used units and scarcity of the available studies.…”
Section: Discussionmentioning
confidence: 94%