scholarly journals Erratum: Corrigendum: Contrasting effects of nitrogen and phosphorus addition on soil respiration in an alpine grassland on the Qinghai-Tibetan Plateau

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Fei Ren ◽  
Xiaoxia Yang ◽  
Huakun Zhou ◽  
Wenyan Zhu ◽  
Zhenhua Zhang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Soil Respiration ◽  
Alpine Grassland ◽  
Nitrogen And Phosphorus ◽  
Phosphorus Addition

scholarly journals Contrasting effects of nitrogen and phosphorus addition on soil respiration in an alpine grassland on the Qinghai-Tibetan Plateau

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Fei Ren ◽  
Xiaoxia Yang ◽  
Huakun Zhou ◽  
Wenyan Zhu ◽  
Zhenhua Zhang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Soil Respiration ◽  
Heterotrophic Respiration ◽  
Interactive Effects ◽  
Alpine Grassland ◽  
Organic Carbon Content ◽  
N Addition ◽  
Alpine Grasslands ◽  
Nitrogen And Phosphorus ◽  
P Addition

Abstract High soil organic carbon content, extensive root biomass, and low nutrient availability make alpine grasslands an important ecosystem for assessing the influence of nutrient enrichment on soil respiration (SR). We conducted a four-year (2009–2012) field experiment in an alpine grassland on the Qinghai-Tibetan Plateau to examine the individual and combined effects of nitrogen (N, 100 kg ha−1year−1) and phosphorus (P, 50 kg ha−1year−1) addition on SR. We found that both N and P addition did not affect the overall growing-season SR but effects varied by year: with N addition SR increased in the first year but decreased during the last two years. However, while P addition did not affect SR during the first two years, SR increased during the last two years. No interactive effects of N and P addition were observed, and both N addition and P addition reduced heterotrophic respiration during the last year of the experiment. N and P addition affected SR via different processes: N mainly affected heterotrophic respiration, whereas P largely influenced autotrophic respiration. Our results highlight the divergent effects of N and P addition on SR and address the important potential of P enrichment for regulating SR and the carbon balance in alpine grasslands.

Differential response of soil respiration to nitrogen and phosphorus addition in a highly phosphorus-limited subtropical forest, China

2019 ◽  
Vol 448 ◽  
pp. 499-508 ◽  
Author(s):  
Heming Liu ◽  
Guiyao Zhou ◽  
Shahla Hosseini Bai ◽  
Jingjing Song ◽  
Yijing Shang ◽  
...  
Keyword(s):  
Soil Respiration ◽  
Differential Response ◽  
Subtropical Forest ◽  
Nitrogen And Phosphorus ◽  
Phosphorus Addition
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