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readcoef.c
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readcoef.c
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/// @file readcoef.c
/// @brief Set soil coefficients according to land cover types and soil types
/// for soil respiration and NEP calculation
/// @author G. Mo
/// @date Dec., 2005
#include "beps.h"
/// @brief Function to set soil coefficients
/// @param lc land cover type
/// 1-ENF 2-DNF 6-DBF 9-EBF 13-Shrub 40-C4 Plants default:Others
/// @param stxt soil texture
/// @param coef soil coefficients array
/// @return void
void readcoef(int short lc,int stxt,double* coef)
{
double lignion_leaf,lignion_fr,lignion_wd,clay1,clay_silt1;
switch (stxt)
{
case 1:
clay1 = 0.03;
clay_silt1=0.08;
break;
case 2:
clay1 = 0.07;
clay_silt1=0.19;
break;
case 3:
clay1 = 0.1;
clay_silt1=0.35;
break;
case 4:
clay1 = 0.18;
clay_silt1=0.58;
break;
case 5:
clay1 = 0.15;
clay_silt1=0.8;
break;
case 6:
clay1 = 0.27;
clay_silt1=0.4;
break;
case 7:
clay1 = 0.34;
clay_silt1=0.68;
break;
case 8:
clay1 = 0.33;
clay_silt1=0.91;
break;
case 9:
clay1 = 0.4;
clay_silt1=0.47;
break;
case 10:
clay1 = 0.45;
clay_silt1=0.9;
break;
case 11:
clay1 = 0.6;
clay_silt1=0.8;
}
switch(lc)
{
case 1: case 2: case 3: case 4: case 5: /* conifer */
coef[0]=0.301013;
coef[1]=0.148216;
coef[2]=0.212864;
coef[3]=0.347907;
coef[4]=0.02888;
coef[5]=0.02688;
coef[6]=0.1925;
coef[7]=0.5948;
coef[31]=650;
coef[32]=380;
coef[33]=100;
coef[34]=190;
coef[35]=350.26;
coef[36]=65.532;
coef[37]=56.532;
coef[38]=56.532;
coef[39]=56.532;
coef[40]=32.74;
coef[41]=350.26;
coef[42]=56.532;
coef[43]=56.532;
coef[44]=12;
coef[45]=10;
coef[46]=1.3557;
coef[47]=20;
lignion_leaf=0.302/(0.15+0.018*0.6*coef[36]);
lignion_fr=0.280/(0.15+0.018*0.6*coef[37]);
lignion_wd=0.40;
coef[8]=3.9*(exp(-3*lignion_leaf))*((1-lignion_leaf)*0.6+lignion_leaf*0.3);
coef[9]=3.9*(exp(-3*lignion_leaf))*(1-lignion_leaf)*0.4;
coef[10]=3.9*(exp(-3*lignion_leaf))*lignion_leaf*0.7;
coef[11]=14.8*0.6;
coef[12]=14.8*0.4;
coef[13]= 4.8*(exp(-3*lignion_fr))*((1-lignion_fr)*0.55+lignion_fr*0.3);
coef[14]= 4.8*(exp(-3*lignion_fr))*(1-lignion_fr)*0.45;
coef[15]= 4.8*(exp(-3*lignion_fr))*lignion_fr*0.7;
coef[16]=18.5*0.5;
coef[17]=18.5*0.5;
coef[18]= 2.4*(exp(-3*lignion_wd))*((1-lignion_wd)*0.55+lignion_wd*0.45);
coef[19]= 2.4*(exp(-3*lignion_wd))*(1-lignion_wd)*0.45;
coef[20]= 2.4*(exp(-3*lignion_wd))*lignion_wd*0.55;
coef[21]= 7.3*(1-0.75*clay_silt1)*(0.85-0.68*clay_silt1);
coef[22]= 7.3*(1-0.75*clay_silt1)*(0.003+0.032*clay1);
coef[23]= 7.3*(1-0.75*clay_silt1)*(1-(0.003+0.032*clay1)-(0.85-0.68*clay_silt1)-5.0/18.0*(0.01+0.04*(1-clay_silt1)));
coef[24]=6.0*0.6;
coef[25]=6.0*0.4;
coef[26]=0.25*0.55;
coef[27]=0.25*(0.003-0.009*clay1);
if(coef[27]<0.00001)coef[27]=0.00001;
if((0.003-0.009*clay1)>0.00001) coef[28]=0.25*(1-0.55-(0.003-0.009*clay1));
else coef[28]=0.25*(1-0.55-0.00001);
/* coef[29]=0.0045*0.5;
coef[30]=0.0045*0.5;*/
coef[29]=0.007*0.5;
coef[30]=0.007*0.5;
break;
case 6: case 9: /* deciduous, tropic evergreen forest */
coef[0]=0.422354;
coef[1]=0.108994;
coef[2]=0.242626;
coef[3]=0.226026;
coef[4]=0.01680;
coef[5]=0.0248;
coef[6]=1;
coef[7]=0.5948;
coef[31]=650;
coef[32]=380;
coef[33]=100;
coef[34]=190;
coef[35]=350.26;
coef[36]=56.532;
coef[37]=56.532;
coef[38]=56.532;
coef[39]=56.532;
coef[40]=32.74;
coef[41]=350.26;
coef[42]=56.532;
coef[43]=56.532;
coef[44]=12.0;
coef[45]=10.0;
coef[46]=1.3557;
coef[47]=20.0;
lignion_leaf=0.224/(0.15+0.018*0.6*coef[36]);
lignion_fr=0.200/(0.15+0.018*0.6*coef[37]);
lignion_wd=0.30;
coef[8]=3.9*(exp(-3*lignion_leaf))*((1-lignion_leaf)*0.6+lignion_leaf*0.3);
coef[9]=3.9*(exp(-3*lignion_leaf))*(1-lignion_leaf)*0.4;
coef[10]=3.9*(exp(-3*lignion_leaf))*lignion_leaf*0.7;
coef[11]=14.8*0.6;
coef[12]=14.8*0.4;
coef[13]= 4.8*(exp(-3*lignion_fr))*((1-lignion_fr)*0.55+lignion_fr*0.3);
coef[14]= 4.8*(exp(-3*lignion_fr))*(1-lignion_fr)*0.45;
coef[15]= 4.8*(exp(-3*lignion_fr))*lignion_fr*0.7;
coef[16]=18.5*0.5;
coef[17]=18.5*0.5;
coef[18]= 2.4*(exp(-3*lignion_wd))*((1-lignion_wd)*0.55+lignion_wd*0.45);
coef[19]= 2.4*(exp(-3*lignion_wd))*(1-lignion_wd)*0.45;
coef[20]= 2.4*(exp(-3*lignion_wd))*lignion_wd*0.55;
coef[21]= 7.3*(1-0.75*clay_silt1)*(0.85-0.68*clay_silt1);
coef[22]= 7.3*(1-0.75*clay_silt1)*(0.003+0.032*clay1);
coef[23]= 7.3*(1-0.75*clay_silt1)*(1-(0.003+0.032*clay1)-(0.85-0.68*clay_silt1)-5.0/18.0*(0.01+0.04*(1-clay_silt1)));
coef[24]=6.0*0.6;
coef[25]=6.0*0.4;
coef[26]=0.25*0.55;
coef[27]=0.25*(0.003-0.009*clay1);
if(coef[27]<0.00001)coef[27]=0.00001;
if((0.003-0.009*clay1)>0.00001) coef[28]=0.25*(1-0.55-(0.003-0.009*clay1));
else coef[28]=0.25*(1-0.55-0.00001);
coef[29]=0.0045*0.5;
coef[30]=0.0045*0.5;
/* coef[29]=0.007*0.5;
// coef[30]=0.007*0.5;*/
break;
case 13: /* shrub */
coef[0]=0.189428;
coef[1]=0.053605;
coef[2]=0.45;
coef[3]=0.306967;
coef[4]=0.025;
coef[5]=0.04;
coef[6]=0.8;
coef[7]=0.75;
coef[31]=650;
coef[32]=380;
coef[33]=100;
coef[34]=190;
coef[35]=370.26;
coef[36]=63.532;
coef[37]=63.532;
coef[38]=63.532;
coef[39]=63.532;
coef[40]=32.74;
coef[41]=370.26;
coef[42]=63.532;
coef[43]=63.532;
coef[44]=12;
coef[45]=10;
coef[46]=1.3557;
coef[47]=20;
lignion_leaf=0.282/(0.15+0.018*0.6*coef[36]);
lignion_fr=0.24/(0.15+0.018*0.6*coef[37]);
lignion_wd=0.35;
coef[8]=3.9*(exp(-3*lignion_leaf))*((1-lignion_leaf)*0.6+lignion_leaf*0.3);
coef[9]=3.9*(exp(-3*lignion_leaf))*(1-lignion_leaf)*0.4;
coef[10]=3.9*(exp(-3*lignion_leaf))*lignion_leaf*0.7;
coef[11]=14.8*0.6;
coef[12]=14.8*0.4;
coef[13]= 4.8*(exp(-3*lignion_fr))*((1-lignion_fr)*0.55+lignion_fr*0.3);
coef[14]= 4.8*(exp(-3*lignion_fr))*(1-lignion_fr)*0.45;
coef[15]= 4.8*(exp(-3*lignion_fr))*lignion_fr*0.7;
coef[16]=18.5*0.5;
coef[17]=18.5*0.5;
coef[18]= 2.4*(exp(-3*lignion_wd))*((1-lignion_wd)*0.55+lignion_wd*0.45);
coef[19]= 2.4*(exp(-3*lignion_wd))*(1-lignion_wd)*0.45;
coef[20]= 2.4*(exp(-3*lignion_wd))*lignion_wd*0.55;
coef[21]= 7.3*(1-0.75*clay_silt1)*(0.85-0.68*clay_silt1);
coef[22]= 7.3*(1-0.75*clay_silt1)*(0.003+0.032*clay1);
coef[23]= 7.3*(1-0.75*clay_silt1)*(1-(0.003+0.032*clay1)-(0.85-0.68*clay_silt1)-5.0/18.0*(0.01+0.04*(1-clay_silt1)));
coef[24]=6.0*0.6;
coef[25]=6.0*0.4;
coef[26]=0.25*0.55;
coef[27]=0.25*(0.003-0.009*clay1);
if(coef[27]<0.00001)coef[27]=0.00001;
if((0.003-0.009*clay1)>0.00001) coef[28]=0.25*(1-0.55-(0.003-0.009*clay1));
else coef[28]=0.25*(1-0.55-0.00001);
coef[29]=0.007*0.5;
coef[30]=0.007*0.5;
/* coef[29]=0.0045*0.5;
// coef[30]=0.0045*0.5;*/
break;
default: /* others landcover */
coef[0]=0.331684;
coef[1]=0.053605;
coef[2]=0.307745;
coef[3]=0.306967;
coef[4]=0.0278;
coef[5]=0.0448;
coef[6]=0.39448;
coef[7]=0.5948;
coef[31]=650;
coef[32]=380;
coef[33]=100;
coef[34]=190;
coef[35]=370.26;
coef[36]=63.532;
coef[37]=63.532;
coef[38]=63.532;
coef[39]=63.532;
coef[40]=32.74;
coef[41]=370.26;
coef[42]=63.532;
coef[43]=63.532;
coef[44]=12;
coef[45]=10;
coef[46]=1.3557;
coef[47]=20;
lignion_leaf=0.6*0.224/(0.15+0.018*0.6*coef[36]);
lignion_fr=0.6*0.200/(0.15+0.018*0.6*coef[37]);
lignion_wd=0.30;
coef[8]=3.9*(exp(-3*lignion_leaf))*((1-lignion_leaf)*0.6+lignion_leaf*0.3);
coef[9]=3.9*(exp(-3*lignion_leaf))*(1-lignion_leaf)*0.4;
coef[10]=3.9*(exp(-3*lignion_leaf))*lignion_leaf*0.7;
coef[11]=14.8*0.6;
coef[12]=14.8*0.4;
coef[13]= 4.8*(exp(-3*lignion_fr))*((1-lignion_fr)*0.55+lignion_fr*0.3);
coef[14]= 4.8*(exp(-3*lignion_fr))*(1-lignion_fr)*0.45;
coef[15]= 4.8*(exp(-3*lignion_fr))*lignion_fr*0.7;
coef[16]=18.5*0.5;
coef[17]=18.5*0.5;
coef[18]= 2.4*(exp(-3*lignion_wd))*((1-lignion_wd)*0.55+lignion_wd*0.45);
coef[19]= 2.4*(exp(-3*lignion_wd))*(1-lignion_wd)*0.45;
coef[20]= 2.4*(exp(-3*lignion_wd))*lignion_wd*0.55;
coef[21]= 7.3*(1-0.75*clay_silt1)*(0.85-0.68*clay_silt1);
coef[22]= 7.3*(1-0.75*clay_silt1)*(0.003+0.032*clay1);
coef[23]= 7.3*(1-0.75*clay_silt1)*(1-(0.003+0.032*clay1)-(0.85-0.68*clay_silt1)-5.0/18.0*(0.01+0.04*(1-clay_silt1)));
coef[24]=6.0*0.6;
coef[25]=6.0*0.4;
coef[26]=0.25*0.55;
coef[27]=0.25*(0.003-0.009*clay1);
if(coef[27]<0.00001)coef[27]=0.00001;
if((0.003-0.009*clay1)>0.00001) coef[28]=0.25*(1-0.55-(0.003-0.009*clay1));
else coef[28]=0.25*(1-0.55-0.00001);
coef[29]=0.007*0.5;
coef[30]=0.007*0.5;
/* coef[29]=0.0045*0.5;
// coef[30]=0.0045*0.5;*/
}
return;
}