Table 3 Correlation between soil chemical properties, potential nitrification activity (PNA), potential nitrification rate (PNR) and abundances of AOA and AOB.

From: Effects of long-term fertilizer practices on rhizosphere soil ammonia oxidizer community structure under the double-cropping rice field

Items

pH

SOC

TN

NH4-N

NO3-N

AOA

AOB

AOB

− 0.425

0.301

0.327

0.287

− 0.195

0.285

—

AOA

− 0.702**

0.706**

0.715**

0.734**

0.406

—

0.284

PNA

− 0.611*

0.352

0.438

0.243

− 0.275

0.347

0.872**

PNR

− 0.605*

0.326

0.375

0.136

− 0.231

0.284

0.836**

  1. TN: soil total nitrogen content; SOC: soil organic carbon. AOB: soil ammonia-oxidizing bacterial; AOA: soil ammonia-oxidizing archaea; PNA: soil potential nitrification activity; PNR: potential nitrification rate. *, ** were significantly at the 0.05 and 0.01 level, respectively.