首页|Progressively decreased nitrogen-stimulation of soil phosphatase activity with long-term nitrogen addition
Progressively decreased nitrogen-stimulation of soil phosphatase activity with long-term nitrogen addition
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NSTL
Elsevier
Enhanced anthropogenic nitrogen (N) addition has not been matched by increased phosphorus (P) inputs, leading to widespread P limitation of net primary productivity (NPP). Will ecosystems increasingly be limited by P with continued N addition? No consensus has been reached. Using soil phosphatase activity as an indicator of P limitation, Chen et al. (2020) provided a conceptual framework indicating that N-induced P limitation of NPP acclimates to long-term N addition. Thus, P limitation of NPP with long-term N addition may not be as strong as observed in short-term studies. We are writing this letter to recognize the recent relevant work by Vourlitis et al. (2021a) in Applied Soil Ecology. Their long-term continuous observations provide the first direct evidence supporting this framework. Without this framework, Earth System Models may underestimate ecosystem CO2 sequestration capacity with ongoing enhanced N addition. This framework may also be useful to optimize P management in agroecosystems.
NSTL
Elsevier
