raw data of figure2,,,,,,,
altitude,plot,layer,SOC,TN,AN,TP,AP
1200,Ⅰ-1,topsoil,21.73231451,1.758577001,144.7922926,0.255008,1.787175
1200,Ⅰ-1,topsoil,22.67521191,1.682444057,149.6886503,0.22431104,1.44807
1200,Ⅰ-1,topsoil,23.0337887,1.786774387,158.7818861,0.24843008,1.347255
1200,Ⅰ-2,topsoil,23.65756764,1.603491375,120.310504,0.20676992,0.925665
1200,Ⅰ-2,topsoil,24.19064906,1.606311114,124.5073821,0.19142144,0.779025
1200,Ⅰ-2,topsoil,23.30575295,1.595032159,123.1084227,0.20238464,0.705705
1200,Ⅰ-3,topsoil,24.37905762,1.578113728,128.7042601,0.20238464,0.93483
1200,Ⅰ-3,topsoil,24.53819028,1.578113728,129.4037398,0.1855744,0.82485
1200,Ⅰ-3,topsoil,23.81155067,1.555555818,134.9995772,0.19726848,0.943995
1300,Ⅱ-1,topsoil,20.66749359,1.079019988,95.8287154,0.11760256,0.943995
1300,Ⅱ-1,topsoil,19.15194603,1.076200249,89.53339833,0.11833344,0.98982
1300,Ⅱ-1,topsoil,19.31003992,1.081839726,88.83391866,0.12052608,0.943995
1300,Ⅱ-2,topsoil,19.45828218,1.112856851,96.52819508,0.12198784,0.943995
1300,Ⅱ-2,topsoil,18.87256733,1.124135806,97.92715443,0.12564224,0.962325
1300,Ⅱ-2,topsoil,19.65704078,1.101577897,110.5177886,0.1380672,0.980655
1300,Ⅱ-3,topsoil,21.15047478,1.186170056,95.12923573,0.17972736,1.13646
1300,Ⅱ-3,topsoil,22.23552015,1.203088488,102.1240325,0.18192,1.00815
1300,Ⅱ-3,topsoil,22.15381799,1.205908227,90.23287801,0.17168768,1.145625
1400,Ⅲ-1,topsoil,30.77615258,1.939040274,136.0487967,0.163648,1.163955
1400,Ⅲ-1,topsoil,28.85465536,1.910842888,138.1472357,0.17022592,1.20978
1400,Ⅲ-1,topsoil,29.91507612,1.727089919,131.8519186,0.15853184,1.145625
1400,Ⅲ-2,topsoil,31.00804504,1.504800523,112.9659674,0.17022592,1.218945
1400,Ⅲ-2,topsoil,32.19802256,1.504800523,112.9659674,0.19434496,0.650715
1400,Ⅲ-2,topsoil,32.34171944,1.504800523,110.8675284,0.15560832,0.375765
1400,Ⅲ-3,topsoil,29.26661028,1.927761319,185.7118536,0.23600512,1.493895
1400,Ⅲ-3,topsoil,28.37163099,1.924941581,195.8543089,0.23965952,1.897155
1400,Ⅲ-3,topsoil,30.55183997,1.902383672,186.0615934,0.24623744,1.292265
1500,Ⅳ-1,topsoil,35.44150553,1.90520341,173.8206991,0.19995984,0.925665
1500,Ⅳ-1,topsoil,33.38917721,1.834709944,178.7170568,0.21556536,0.797355
1500,Ⅳ-1,topsoil,32.47496908,1.865727069,192.0071706,0.21482224,0.80652
1500,Ⅳ-2,topsoil,36.33485274,1.831420249,131.8519186,0.25718008,0.95316
1500,Ⅳ-2,topsoil,33.42040182,1.842699204,139.5461951,0.250492,0.742365
1500,Ⅳ-2,topsoil,33.31426718,1.837059726,143.0435934,0.2579232,0.87984
1500,Ⅳ-3,topsoil,43.66185429,2.47432066,166.1264227,0.34635448,0.58656
1500,Ⅳ-3,topsoil,44.50073299,2.479960137,167.525382,0.34932696,0.724035
1500,Ⅳ-3,topsoil,40.21378554,2.488419353,173.1212194,0.30325352,0.76986
1600,Ⅴ-1,topsoil,8.422799382,0.720443223,69.59822761,0.08477624,0.7332
1600,Ⅴ-1,topsoil,10.93179964,0.720443223,66.10082924,0.09146432,0.577395
1600,Ⅴ-1,topsoil,10.05981273,0.700705053,68.19926826,0.08923496,0.669045
1600,Ⅴ-2,topsoil,15.97832381,1.095468463,82.07228181,0.13307904,0.76986
1600,Ⅴ-2,topsoil,16.4789219,1.137764543,86.96863953,0.13084968,0.705705
1600,Ⅴ-2,topsoil,17.02104618,1.084189509,83.47124115,0.12713408,0.80652
1600,Ⅴ-3,topsoil,10.56529396,0.816314337,57.5904932,0.1241616,1.63137
1600,Ⅴ-3,topsoil,10.76180172,0.81067486,56.19153385,0.13084968,1.805505
1600,Ⅴ-3,topsoil,11.22681029,0.813494599,57.5904932,0.12936344,1.86966
1200,Ⅰ-1,subsoil,5.463907212,0.650419714,46.16565852,0.18849792,0.797355
1200,Ⅰ-1,subsoil,7.959479016,0.656059191,46.16565852,0.1928832,0.65988
1200,Ⅰ-1,subsoil,6.775032734,0.636321021,47.56461786,0.16949504,0.577395
1200,Ⅰ-2,subsoil,3.688344338,0.289493167,59.45577233,0.17168768,0.56823
1200,Ⅰ-2,subsoil,4.039368278,0.278214213,59.45577233,0.17680384,0.34827
1200,Ⅰ-2,subsoil,3.657579305,0.297952383,59.45577233,0.1855744,0.339105
1200,Ⅰ-3,subsoil,10.05272357,0.565827555,39.87034145,0.1563392,0.650715
1200,Ⅰ-3,subsoil,8.690900922,0.568647293,41.96878047,0.15707008,0.320775
1200,Ⅰ-3,subsoil,9.269318856,0.563007816,45.46617884,0.163648,0.69654
1300,Ⅱ-1,subsoil,8.086880596,0.458677486,44.76669917,0.1015232,0.31161
1300,Ⅱ-1,subsoil,7.41114001,0.441759054,45.46617884,0.09640704,0.320775
1300,Ⅱ-1,subsoil,7.006491399,0.424840622,44.76669917,0.10006144,0.45825
1300,Ⅱ-2,subsoil,12.05444216,0.656059191,72.04640647,0.10298496,0.375765
1300,Ⅱ-2,subsoil,14.11263405,0.647599975,72.27956636,0.07740416,0.49491
1300,Ⅱ-2,subsoil,10.68688038,0.675797362,72.97904604,0.07813504,0.31161
1300,Ⅱ-3,subsoil,6.578540848,0.416381406,33.57502438,0.09129088,0.522405
1300,Ⅱ-3,subsoil,6.784258509,0.441759054,35.6734634,0.09056,0.56823
1300,Ⅱ-3,subsoil,7.319810931,0.438939316,39.87034145,0.12052608,0.53157
1400,Ⅲ-1,subsoil,13.43223985,0.72091318,54.90915445,0.10590848,0.62322
1400,Ⅲ-1,subsoil,14.15926267,0.703994748,70.99718696,0.0978688,0.69654
1400,Ⅲ-1,subsoil,13.4620953,0.712453964,57.70707314,0.10371584,0.614055
1500,Ⅳ-1,subsoil,20.06453317,1.064921294,93.38053654,0.18286808,0.375765
1500,Ⅳ-1,subsoil,20.13117599,1.056462079,102.4737723,0.18658368,0.412425
1500,Ⅳ-1,subsoil,19.58725144,1.084189509,99.67585361,0.18658368,0.29328
1500,Ⅳ-2,subsoil,16.41950843,0.996777611,79.39094305,0.19921672,0.485745
1500,Ⅳ-2,subsoil,17.00054881,0.996777611,84.17072083,0.20144608,0.43992
1500,Ⅳ-2,subsoil,16.7982508,1.010876304,82.77176148,0.20144608,0.45825
1500,Ⅳ-3,subsoil,14.17157581,1.070090815,78.69146338,0.19698736,0.71487
1500,Ⅳ-3,subsoil,14.03172884,1.064451338,83.5878211,0.18212496,0.45825
1500,Ⅳ-3,subsoil,16.39400564,1.044713168,93.38053654,0.17766624,0.504075
1600,Ⅴ-1,subsoil,1.316931549,0.210070529,33.92476421,0.07511568,0.34827
1600,Ⅴ-1,subsoil,2.345493,0.210070529,32.52580486,0.05653768,0.302445
1600,Ⅴ-1,subsoil,1.732704749,0.210070529,33.22528454,0.06694136,0.3666
1600,Ⅴ-2,subsoil,8.491515489,0.492044393,44.30037938,0.10632672,0.5499
1600,Ⅴ-2,subsoil,7.778411819,0.489224655,42.20194036,0.0944368,0.43992
1600,Ⅴ-2,subsoil,8.354106661,0.4779457,45.69933873,0.11078544,0.504075
1600,Ⅴ-3,subsoil,7.407165148,0.53997995,38.00506231,0.12862032,1.108965
1600,Ⅴ-3,subsoil,7.519907699,0.53997995,31.70974524,0.13307904,0.962325
1600,Ⅴ-3,subsoil,7.519907699,0.534340473,40.10350134,0.120446,1.035645