Table 4 Multiple-regression models of the standardized data representing annual net primary production for the tropical or subtropical evergreen broadleaved forests in China from 1981 to 2012.

From: Decadal drought deaccelerated the increasing trend of annual net primary production in tropical or subtropical forests in southern China

Regression equation

Standardized Coefficients

P

R 2

SE

n

y = 0.354x1+0.256x2−0.157x3 − 0.031

  

0.012

0.399

0.765

160

 

x 1

0.355

0.001

   

x 2

0.258

0.003

x 3

0.158

0.012

x 4

0.063

0.364

x 5

0.081

0.591

x 6

0.022

0.818

  1. Dependent variables: y: NPP, Independent variables: x1: annual days without rainfall; x2: .MAT; x3: MARH; x4: MAP; x5: soil water content; x6: annual days with small rainfall.