1 | ! This subrutine is addressing the Carbon allocation for crops in combination with STICS |
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2 | ! Author: Xuhui Wang |
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3 | ! Date: 03/12/2014 |
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4 | |
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5 | module crop_alloc |
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6 | |
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7 | ! use modules |
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8 | |
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9 | USE ioipsl |
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10 | USE pft_parameters |
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11 | USE constantes |
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12 | USE netcdf |
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13 | |
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14 | IMPLICIT NONE |
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15 | |
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16 | CONTAINS |
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17 | |
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18 | subroutine crop_bmalloc(in_cycle, & |
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19 | deltai, & |
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20 | dltaisen, & |
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21 | ssla, & |
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22 | pgrain, & |
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23 | deltgrain, & |
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24 | reprac, & |
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25 | nger, & |
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26 | nlev, & |
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27 | ndrp, & |
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28 | nlax, & ! input |
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29 | nmat, & |
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30 | nrec, & |
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31 | ! is_recycle, & |
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32 | bm_alloc_tot, & ! input |
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33 | biomass, & |
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34 | c_reserve, & ! out |
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35 | c_leafb, & ! out |
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36 | bm_alloc, & ! inout |
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37 | P_densitesem, & |
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38 | P_pgrainmaxi, & |
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39 | P_tigefeuil, & |
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40 | P_slamax, & |
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41 | slai, & |
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42 | tday_counter) ! parameter |
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43 | |
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44 | !USE ioipsl |
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45 | !USE pft_parameters |
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46 | !USE constantes |
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47 | |
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48 | ! Declaration part |
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49 | |
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50 | ! 0.0 INPUT PART |
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51 | LOGICAL, INTENT(IN) :: in_cycle |
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52 | REAL(r_std), INTENT(IN) :: deltai ! lai increment // unit in m2 m-2 |
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53 | REAL(r_std), INTENT(IN) :: dltaisen ! lai senescence // unit in m2 m-2 |
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54 | REAL(r_std), INTENT(IN) :: ssla ! sla from STICS // unit in g cm -2 |
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55 | REAL(r_std), INTENT(IN) :: pgrain ! weight per grain (dry matter, but not carbon) // g |
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56 | REAL(r_std), INTENT(IN) :: deltgrain ! grain yield increment (dry matter but not carbon) // unit g c / m2 |
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57 | REAL(r_std), INTENT(IN) :: reprac |
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58 | INTEGER(i_std), INTENT(IN) :: nger |
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59 | INTEGER(i_std), INTENT(IN) :: nlev |
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60 | INTEGER(i_std), INTENT(IN) :: ndrp |
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61 | INTEGER(i_std), INTENT(IN) :: nlax |
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62 | INTEGER(i_std), INTENT(IN) :: nmat |
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63 | INTEGER(i_std), INTENT(IN) :: nrec |
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64 | ! LOGICAL, INTENT(IN) :: is_recycle |
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65 | REAL(r_std), INTENT(IN) :: bm_alloc_tot ! unit in g m-2 |
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66 | REAL(r_std), INTENT(IN) :: P_densitesem |
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67 | REAL(r_std), INTENT(IN) :: P_tigefeuil |
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68 | REAL(r_std), INTENT(IN) :: P_pgrainmaxi |
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69 | REAL(r_std), INTENT(IN) :: P_slamax |
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70 | REAL(r_std), DIMENSION(nparts), INTENT(INOUT) :: biomass ! unit in g m-2 |
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71 | INTEGER(i_std), INTENT(IN) :: tday_counter |
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72 | ! 1.0 INOUT PART |
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73 | |
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74 | REAL(r_std), INTENT(INOUT) ::c_reserve ! crop reserve |
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75 | REAL(r_std), INTENT(INOUT) ::c_leafb ! crop leaf biomass derived from STICS |
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76 | REAL(r_std), INTENT(INOUT) ::slai ! stics simulated lai |
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77 | REAL(r_std), DIMENSION(nparts), INTENT(INOUT) ::bm_alloc ! crop leaf biomass derived from STICS |
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78 | |
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79 | ! 2.0 local |
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80 | REAL(r_std) :: grainrem ! daily grain minus reservoir, the remaining carbon |
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81 | REAL(r_std) :: deltmagrain ! daily grain/ (unit in carbon) |
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82 | INTEGER(i_std) :: ipart |
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83 | REAL(r_std) :: tempalloc |
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84 | REAL(r_std) :: tempdlai |
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85 | REAL(r_std) :: netdeltai |
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86 | REAL(r_std) :: temprest |
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87 | REAL(r_std) :: maxremobi,sla0,sla1,remobi |
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88 | LOGICAL, PARAMETER :: mydebug=.FALSE. |
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89 | |
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90 | |
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91 | ! Part one: conversion from biomass(dry matter) to carbon |
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92 | deltmagrain = deltgrain*0.48 |
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93 | |
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94 | ! STRATEGY: |
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95 | ! We keep the leaf biomass, grain and reprac from STICS |
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96 | ! Total available biomass for allocation is dltams and cropreserv. |
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97 | |
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98 | !IF (bavard .GE. 3) WRITE(numout,*) 'Entering crop alloc' |
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99 | |
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100 | ! 1. whether or not necessary to enter into this process |
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101 | |
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102 | if (.not. in_cycle) then |
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103 | return ! if not yet into the crop cycle or finish the cycle |
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104 | endif |
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105 | |
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106 | ! 1. initialize the bm_alloc (biomass allocation) |
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107 | ! |
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108 | |
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109 | bm_alloc(:) = 0. ! 8 parts |
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110 | |
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111 | ! 2. leaf biomass from STICS |
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112 | ! in this subroutine, we USED the Leaf biomass and GRAIN yield, the leaf biomass and grain production is adjusted accoring to different stages (in detail see leaf and grain processes) |
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113 | c_leafb = 0. |
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114 | if (in_cycle) then |
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115 | if (deltai > 0.) then ! just for leaf growth period |
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116 | c_leafb = deltai/ssla*10000.0*0.48 |
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117 | elseif (deltai < 0.) then |
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118 | c_leafb = deltai/ssla*10000.0*0.48 |
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119 | else |
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120 | c_leafb = 0. |
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121 | endif |
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122 | else |
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123 | c_leafb = 0. |
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124 | endif |
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125 | netdeltai = deltai - dltaisen |
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126 | |
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127 | |
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128 | ! 3. reinitialization of leaf and fruit biomass |
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129 | if (biomass(ileaf) .gt. 0.0) then |
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130 | sla0 = slai/biomass(ileaf) |
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131 | else |
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132 | sla0 = P_slamax |
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133 | endif |
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134 | if (sla0 .eq. 0.0) then |
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135 | sla0 = P_slamax |
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136 | endif |
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137 | if (sla0 .LT. 0) then |
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138 | write(*,*) 'allocation sla error: sla0,',sla0 |
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139 | STOP |
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140 | endif |
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141 | bm_alloc(ileaf) = c_leafb - dltaisen/sla0 |
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142 | if (bm_alloc(ileaf) .LT. 0 .and. netdeltai .GT. 0) then |
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143 | write(*,*) 'allocation leaf error: bm_alloc(ileaf)',bm_alloc(ileaf) |
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144 | endif |
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145 | if (bm_alloc(ileaf)<0 .and. biomass(ileaf)+bm_alloc(ileaf)<0) then |
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146 | bm_alloc(ileaf) = -biomass(ileaf) |
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147 | endif |
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148 | bm_alloc(ifruit)= deltmagrain |
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149 | bm_alloc(iroot) = bm_alloc_tot * reprac |
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150 | if (reprac .GE. 1.) then |
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151 | write(numout,*) 'reprac > 1: ',reprac |
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152 | stop |
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153 | endif |
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154 | bm_alloc(isapabove) = P_tigefeuil * c_leafb |
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155 | bm_alloc(icarbres) = 0. |
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156 | |
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157 | if (mydebug) then |
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158 | write(numout,*) 'xuhui, alloc initial:' |
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159 | write(numout,*) 'biomass(ileaf) ', biomass(ileaf) |
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160 | write(numout,*) 'slai ', slai |
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161 | write(numout,*) 'sla0 ', sla0 |
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162 | write(numout,*) 'deltai ', deltai |
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163 | write(numout,*) 'dltaisen ', dltaisen |
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164 | write(numout,*) 'reprac ', reprac |
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165 | write(numout,*) 'deltmagrain ', deltmagrain |
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166 | write(numout,*) 'P_tigefeuil ', P_tigefeuil |
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167 | write(numout,*) 'bm_alloc_tot ', bm_alloc_tot |
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168 | write(numout,*) 'bm_alloc(ileaf,isapabove,iroot,ifruit) ' |
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169 | write(numout,*) bm_alloc(ileaf), bm_alloc(isapabove), bm_alloc(iroot), bm_alloc(ifruit) |
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170 | write(numout,*) 'nger nlev nlax ndrp nrec ' |
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171 | write(numout,*) nger, nlev, nlax, ndrp, nrec |
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172 | write(numout,*) 'biomass(ileaf, isapabove, iroot, ifruit, icarbres) ' |
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173 | write(numout,*) biomass(ileaf), biomass(isapabove), biomass(iroot), biomass(ifruit), biomass(icarbres) |
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174 | endif |
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175 | |
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176 | ! it is possible that bm_alloc(ileaf) is negative |
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177 | |
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178 | ! 4. real allocation for each grid and each pft |
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179 | |
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180 | |
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181 | ! STRATEGY: |
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182 | ! 1. carbon allocation priority is different for different parts; |
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183 | ! 2. even for the same pool, the priority is changing along with time (stage revolution) |
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184 | |
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185 | ! 3.1 FOR STAGE [nger, nlev] |
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186 | |
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187 | ! the c_reserve starts to decreasing because the root growth |
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188 | ! and we allocate all carbon into root |
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189 | |
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190 | if ((nger .gt. 0) .and. (nlev .eq. 0)) then ! germination occured but did not emerge, during this stage only root and reserve pools |
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191 | if ( biomass(icarbres) > 0.) then ! adjust the reserve dynamics |
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192 | ! addressing the c_reserve dynamics |
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193 | bm_alloc(iroot) = biomass(icarbres)*reprac |
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194 | bm_alloc(icarbres) = 0. - biomass(icarbres)*reprac |
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195 | bm_alloc(ileaf) = 0. |
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196 | bm_alloc(isapabove) = 0. |
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197 | bm_alloc(ifruit) = 0. |
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198 | else |
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199 | !c_reserve = 0. |
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200 | bm_alloc(icarbres) = 0. |
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201 | bm_alloc(iroot) = 0. |
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202 | bm_alloc(ileaf) = 0. |
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203 | bm_alloc(isapabove) = 0. |
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204 | bm_alloc(ifruit) = 0. |
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205 | endif |
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206 | endif |
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207 | |
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208 | ! 3.2 FOR STAGE [NLEV, NDRP) |
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209 | if ((nlev .gt. 0) .and. (ndrp .eq. 0)) then |
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210 | ! emergence and photosynthese, whereas grain is not filling |
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211 | ! in this stage, we keep the leaf and grain biomass |
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212 | ! root with the higher priority |
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213 | tempalloc = bm_alloc(ileaf)+bm_alloc(iroot)+bm_alloc(isapabove) |
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214 | bm_alloc(ifruit) = 0. |
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215 | if (tempalloc > bm_alloc_tot) then |
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216 | if (tempalloc < bm_alloc_tot + biomass(icarbres)) then |
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217 | ! biomass(icarbres) = biomass(icarbres) - (tempalloc - bm_alloc_tot) |
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218 | bm_alloc(icarbres) = - (tempalloc - bm_alloc_tot) |
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219 | else ! new c + c reserve is insufficient to meet the demand |
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220 | if (biomass(icarbres)<0) then |
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221 | biomass(icarbres) = 0. |
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222 | bm_alloc(icarbres) = 0. |
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223 | else |
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224 | bm_alloc(icarbres) = - biomass(icarbres) |
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225 | endif |
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226 | bm_alloc(iroot) = reprac * bm_alloc_tot |
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227 | if ( tday_counter >= nlev .and. tday_counter < nlev+8) then ! we create some biomass for leaf at the beginning |
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228 | bm_alloc(ileaf) = deltai/P_slamax*10000.0*0.48 |
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229 | bm_alloc(icarbres) = -bm_alloc(ileaf) |
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230 | else |
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231 | tempdlai = (bm_alloc_tot + biomass(icarbres) - bm_alloc(iroot))/(1+P_tigefeuil)*ssla/10000.0/0.48 |
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232 | bm_alloc(ileaf) = tempdlai/ssla*10000.0*0.48 |
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233 | bm_alloc(isapabove) = P_tigefeuil*bm_alloc(ileaf) |
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234 | if (netdeltai > tempdlai) then |
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235 | slai = slai - (netdeltai - tempdlai) |
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236 | endif |
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237 | endif |
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238 | endif |
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239 | else |
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240 | bm_alloc(icarbres) = bm_alloc_tot - tempalloc |
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241 | endif |
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242 | ! if (bm_alloc(ileaf)<0) then ! remobilize the leaf biomass for future use (grain mainly) |
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243 | ! bm_alloc(icarbres) = bm_alloc(icarbres) - bm_alloc(ileaf) |
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244 | ! endif |
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245 | ! endif |
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246 | |
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247 | |
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248 | ! 3.3 STAGE [ndrp nrec) |
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249 | ! in this stage, there is potentially competition between leaf and fruit, |
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250 | ! conserve root/shoot ratio, fulfil grain first, reduce deltai when necessary |
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251 | ! note that leaf growth stop at nlax, grain filling stop at nmat |
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252 | ! no fundamental differences exist for [nlax, nmat) |
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253 | |
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254 | else if ((ndrp .gt. 0) .and. ( (nmat .eq. 0) .or. (tday_counter .eq. nmat))) then ! from grain filling to maturity |
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255 | tempalloc = bm_alloc(ileaf)+bm_alloc(ifruit)+bm_alloc(iroot)+bm_alloc(isapabove) |
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256 | |
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257 | if (tempalloc > bm_alloc_tot) then |
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258 | if (tempalloc < bm_alloc_tot + biomass(icarbres)) then ! use c reserval |
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259 | ! biomass(icarbres) = biomass(icarbres) - (tempalloc - bm_alloc_tot) |
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260 | bm_alloc(icarbres) = - (tempalloc - bm_alloc_tot) |
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261 | else ! new c + c reserval is insufficient to meet the demand |
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262 | if (biomass(icarbres)<0) then |
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263 | biomass(icarbres) = 0. |
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264 | else |
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265 | bm_alloc(icarbres) = 0. - biomass(icarbres) |
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266 | endif |
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267 | bm_alloc(iroot) = reprac * bm_alloc_tot |
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268 | if (bm_alloc(ileaf)>=0) then |
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269 | temprest = bm_alloc_tot + biomass(icarbres) - bm_alloc(iroot) |
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270 | else ! bm_alloc(ileaf) < 0 |
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271 | temprest = bm_alloc_tot + biomass(icarbres) - bm_alloc(ileaf) - bm_alloc(iroot) |
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272 | endif |
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273 | if (temprest < bm_alloc(ifruit)) then ! if not sufficient for grain alone |
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274 | if (nlax .gt. 0) then ! remobilize some carbon from leaf |
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275 | sla0 = slai/biomass(ileaf)*10000.0*0.48 ! m2/gC --> cm2/g drymass |
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276 | sla1 = min(sla0+5,P_slamax) |
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277 | maxremobi = slai/(sla0/0.48/10000.0) - slai/(sla1/0.48/10000) !cm2/g --> m2/gC |
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278 | remobi = min(maxremobi, bm_alloc(ifruit)-temprest) |
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279 | |
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280 | bm_alloc(ifruit) = temprest + remobi |
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281 | bm_alloc(ileaf) = min(bm_alloc(ileaf),0.) - remobi |
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282 | ! when bm_alloc(ileaf)<0, further remove remobi |
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283 | ! when bm_alloc(ileaf)>0, then stop the planned location to lai |
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284 | bm_alloc(isapabove) = 0. |
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285 | else |
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286 | bm_alloc(ifruit) = temprest |
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287 | bm_alloc(ileaf) = min(0., bm_alloc(ileaf)) |
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288 | bm_alloc(isapabove) = 0. |
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289 | if (netdeltai>0) then |
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290 | slai = slai - netdeltai |
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291 | endif |
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292 | endif |
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293 | else !temprest >= bm_alloc(ifruit) |
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294 | if (bm_alloc(ileaf)<0) then ! the rest is left in reserval |
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295 | bm_alloc(icarbres) = temprest - bm_alloc(ifruit) |
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296 | else ! the rest goes to leaf |
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297 | tempdlai = (temprest - bm_alloc(ifruit))/(1+P_tigefeuil)*ssla/10000.0/0.48 |
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298 | bm_alloc(ileaf) = tempdlai/ssla*10000.0*0.48 |
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299 | bm_alloc(isapabove) = P_tigefeuil*bm_alloc(ileaf) |
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300 | if (netdeltai > tempdlai) then ! which is almost guarantee because bm_alloc(ileaf)>0 |
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301 | slai = slai - (netdeltai - tempdlai) |
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302 | endif |
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303 | endif |
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304 | endif |
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305 | endif |
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306 | else |
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307 | bm_alloc(icarbres) = bm_alloc_tot - tempalloc |
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308 | endif |
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309 | ! endif |
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310 | |
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311 | ! 3.5 stage [nmat nrec) |
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312 | else if ((nmat .gt. 0) .and. (nrec .eq. 0)) then |
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313 | ! xuhui noted: |
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314 | ! in STICS, nmat = physiology maturity, which means |
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315 | ! harvested organs stop growing in dry matter (p20 STICS book) |
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316 | ! It is difficult to imagine vegetative part (leaf, root) are still growing, |
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317 | ! while the harvest organs are not. So my decision is that |
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318 | ! no allocation to any parts of the crop |
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319 | ! = no more npp |
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320 | if (bm_alloc(ileaf)<0) then |
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321 | bm_alloc(isapabove) = -bm_alloc(ileaf) |
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322 | bm_alloc(iroot) = 0. |
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323 | bm_alloc(ifruit) = 0. |
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324 | bm_alloc(icarbres) = 0. |
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325 | else |
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326 | bm_alloc(:) = 0. |
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327 | endif |
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328 | ! endif |
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329 | ! ! 3.5 STAGE [When nrec occur] |
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330 | ! ! when harvest, we alloc some carbon into reservoire pool |
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331 | ! |
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332 | ! else if ( nrec .gt. 0 .OR. (nmat .GT. 0 .AND. is_recycle) ) then ! harvest occurs |
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333 | else if ( nrec .gt. 0 ) then ! harvest occurs |
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334 | ! ! only allocate to root & grain |
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335 | ! bm_alloc(isapabove) = 0. |
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336 | ! if (bm_alloc(ileaf)<0) then |
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337 | ! tempalloc = bm_alloc(ifruit) + bm_alloc(iroot) + bm_alloc(ileaf) |
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338 | ! else !bm_alloc(ileaf)>0 ! this should be a buggy boundary condition |
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339 | ! bm_alloc(ileaf) = 0. |
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340 | ! tempalloc = bm_alloc(ifruit) + bm_alloc(iroot) |
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341 | ! endif |
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342 | ! |
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343 | ! if (tempalloc >= bm_alloc_tot) then !no enough c |
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344 | ! bm_alloc(ifruit) = bm_alloc_tot - bm_alloc(iroot) |
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345 | ! bm_alloc(icarbres) = 0. |
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346 | ! else |
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347 | ! bm_alloc(icarbres) =bm_alloc_tot - tempalloc |
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348 | ! endif |
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349 | ! but we have to put some carbon into reserve (seeds for the next year) |
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350 | c_reserve = P_densitesem*pgrain*0.48 ! seeds |
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351 | bm_alloc(ileaf) = 0. !at harvest, the senescence will be treated as litter, not as re-allocation |
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352 | if (biomass(icarbres) > 0.) then |
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353 | bm_alloc(isapabove) = biomass(icarbres) !the rest of c reservoire will be return to soil as litter |
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354 | bm_alloc(icarbres) = -biomass(icarbres) |
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355 | else |
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356 | bm_alloc(isapabove) = 0. |
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357 | bm_alloc(icarbres) = 0. |
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358 | endif |
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359 | ! biomass(ifruit) = biomass(ifruit) - c_reserve !max(grainrem, 0.); |
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360 | bm_alloc(ifruit) = -c_reserve |
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361 | bm_alloc(icarbres) = bm_alloc(icarbres) + c_reserve |
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362 | DO ipart = 1,nparts |
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363 | IF (bm_alloc(ipart)<0) THEN |
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364 | WRITE(numout,*) 'ipart :',ipart |
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365 | WRITE(numout,*) 'bm_alloc < 0 :',bm_alloc(ipart) |
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366 | WRITE(numout,*) 'biomass :', biomass(ipart) |
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367 | ENDIF |
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368 | ENDDO |
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369 | else |
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370 | ! write(numout,*) 'growth stage not recognized' |
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371 | write(numout,*) 'no allocation occurred in tday_counter: ', tday_counter |
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372 | write(numout,*) 'nger, nlev, ndrp, nmat, nrec' |
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373 | write(numout,*) nger, nlev, ndrp, nmat, nrec |
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374 | ! STOP |
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375 | endif |
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376 | |
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377 | if (mydebug) then |
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378 | write(numout,*) 'xuhui, leaving crop_alloc' |
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379 | write(numout,*) 'bm_alloc(ileaf,isapabove,iroot,ifruit,icarbres) ' |
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380 | write(numout,*) bm_alloc(ileaf), bm_alloc(isapabove), bm_alloc(iroot), bm_alloc(ifruit), bm_alloc(icarbres) |
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381 | write(numout,*) 'slai: ', slai |
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382 | endif |
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383 | |
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384 | end subroutine crop_bmalloc |
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385 | |
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386 | end module crop_alloc |
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