soil-resp group 1.700000000e+001 growth 2.000000000e+001 growth 1.700000000e+002 growth 3.150000000e+002 growth 2.200000000e+001 growth 1.900000000e+002 growth 6.400000000e+001 growth 1.300000000e+001 gap 1.600000000e+001 gap 1.500000000e+001 gap 1.800000000e+001 gap 1.400000000e+001 gap 6.000000000e+000 gap 2.900000000e+001 gap 2.200000000e+001 gap