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189 | iland | 2 | /** @class ResourceUnit |
3 | ResourceUnit is the spatial unit that encapsulates a forest stand and links to several environmental components |
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92 | Werner | 4 | (Climate, Soil, Water, ...). |
5 | |||
6 | */ |
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7 | #include <QtCore> |
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8 | #include "global.h" |
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9 | |||
189 | iland | 10 | #include "resourceunit.h" |
229 | werner | 11 | #include "resourceunitspecies.h" |
111 | Werner | 12 | #include "speciesset.h" |
13 | #include "species.h" |
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113 | Werner | 14 | #include "production3pg.h" |
200 | werner | 15 | #include "model.h" |
208 | werner | 16 | #include "climate.h" |
241 | werner | 17 | #include "watercycle.h" |
18 | #include "helper.h" |
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92 | Werner | 19 | |
241 | werner | 20 | ResourceUnit::~ResourceUnit() |
21 | { |
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22 | if (mWater) |
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23 | delete mWater; |
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24 | } |
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111 | Werner | 25 | |
189 | iland | 26 | ResourceUnit::ResourceUnit(const int index) |
92 | Werner | 27 | { |
94 | Werner | 28 | mSpeciesSet = 0; |
208 | werner | 29 | mClimate = 0; |
113 | Werner | 30 | mIndex = index; |
241 | werner | 31 | mWater = new WaterCycle(); |
32 | |||
157 | werner | 33 | mTrees.reserve(100); // start with space for 100 trees. |
92 | Werner | 34 | } |
105 | Werner | 35 | |
241 | werner | 36 | void ResourceUnit::setup() |
37 | { |
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38 | mWater->setup(this); |
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281 | werner | 39 | // setup variables |
40 | mUnitVariables.nitrogenAvailable = GlobalSettings::instance()->settings().valueDouble("model.site.availableNitrogen", 40); |
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41 | |||
241 | werner | 42 | } |
43 | |||
111 | Werner | 44 | /// set species and setup the species-per-RU-data |
189 | iland | 45 | void ResourceUnit::setSpeciesSet(SpeciesSet *set) |
111 | Werner | 46 | { |
47 | mSpeciesSet = set; |
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48 | mRUSpecies.clear(); |
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229 | werner | 49 | mRUSpecies.resize(set->count()); // ensure that the vector space is not relocated |
111 | Werner | 50 | for (int i=0;i<set->count();i++) { |
51 | Species *s = const_cast<Species*>(mSpeciesSet->species(i)); |
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52 | if (!s) |
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189 | iland | 53 | throw IException("ResourceUnit::setSpeciesSet: invalid index!"); |
229 | werner | 54 | |
55 | /* be careful: setup() is called with a pointer somewhere to the content of the mRUSpecies container. |
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56 | If the container memory is relocated (QVector), the pointer gets invalid!!! |
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57 | Therefore, a resize() is called before the loop (no resize()-operations during the loop)! */ |
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58 | mRUSpecies[i].setup(s,this); // setup this element |
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277 | werner | 59 | |
111 | Werner | 60 | } |
61 | } |
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62 | |||
200 | werner | 63 | ResourceUnitSpecies &ResourceUnit::resourceUnitSpecies(const Species *species) |
111 | Werner | 64 | { |
65 | return mRUSpecies[species->index()]; |
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66 | } |
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67 | |||
189 | iland | 68 | Tree &ResourceUnit::newTree() |
105 | Werner | 69 | { |
70 | // start simple: just append to the vector... |
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71 | mTrees.append(Tree()); |
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72 | return mTrees.back(); |
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73 | } |
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287 | werner | 74 | int ResourceUnit::newTreeIndex() |
75 | { |
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76 | // start simple: just append to the vector... |
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77 | mTrees.append(Tree()); |
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78 | return mTrees.count()-1; |
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79 | } |
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107 | Werner | 80 | |
157 | werner | 81 | /// remove dead trees from tree list |
82 | /// reduce size of vector if lots of space is free |
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83 | /// tests showed that this way of cleanup is very fast, |
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84 | /// because no memory allocations are performed (simple memmove()) |
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85 | /// when trees are moved. |
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189 | iland | 86 | void ResourceUnit::cleanTreeList() |
157 | werner | 87 | { |
88 | QVector<Tree>::iterator last=mTrees.end()-1; |
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89 | QVector<Tree>::iterator current = mTrees.begin(); |
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158 | werner | 90 | while (last>=current && (*last).isDead()) |
157 | werner | 91 | --last; |
107 | Werner | 92 | |
157 | werner | 93 | while (current<last) { |
158 | werner | 94 | if ((*current).isDead()) { |
157 | werner | 95 | *current = *last; // copy data! |
96 | --last; // |
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158 | werner | 97 | while (last>=current && (*last).isDead()) |
157 | werner | 98 | --last; |
99 | } |
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100 | ++current; |
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101 | } |
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102 | ++last; // last points now to the first dead tree |
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103 | |||
104 | // free ressources |
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278 | werner | 105 | if (last!=mTrees.end()) { |
106 | mTrees.erase(last, mTrees.end()); |
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107 | if (mTrees.capacity()>100) { |
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108 | if (mTrees.count() / double(mTrees.capacity()) < 0.2) { |
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109 | int target_size = mTrees.count()*2; |
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110 | qDebug() << "reduce size from "<<mTrees.capacity() << "to" << target_size; |
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111 | mTrees.reserve(qMax(target_size, 100)); |
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112 | } |
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157 | werner | 113 | } |
114 | } |
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115 | } |
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116 | |||
189 | iland | 117 | void ResourceUnit::newYear() |
107 | Werner | 118 | { |
251 | werner | 119 | mAggregatedWLA = 0.; |
120 | mAggregatedLA = 0.; |
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121 | mAggregatedLR = 0.; |
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122 | mEffectiveArea = 0.; |
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151 | iland | 123 | mPixelCount = mStockedPixelCount = 0; |
111 | Werner | 124 | // clear statistics global and per species... |
278 | werner | 125 | ResourceUnitSpecies *i; |
126 | QVector<ResourceUnitSpecies>::iterator iend = mRUSpecies.end(); |
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127 | mStatistics.clear(); |
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128 | for (i=mRUSpecies.begin(); i!=iend; ++i) { |
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129 | i->statistics().clear(); |
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130 | i->statisticsDead().clear(); |
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131 | i->statisticsMgmt().clear(); |
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132 | } |
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133 | |||
107 | Werner | 134 | } |
110 | Werner | 135 | |
112 | Werner | 136 | /** production() is the "stand-level" part of the biomass production (3PG). |
137 | - The amount of radiation intercepted by the stand is calculated |
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298 | werner | 138 | - The 3PG production for each species and ressource unit is invoked |
139 | see also: http://iland.boku.ac.at/individual+tree+light+availability */ |
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189 | iland | 140 | void ResourceUnit::production() |
110 | Werner | 141 | { |
241 | werner | 142 | |
151 | iland | 143 | if (mAggregatedWLA==0 || mPixelCount==0) { |
112 | Werner | 144 | // nothing to do... |
145 | return; |
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146 | } |
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151 | iland | 147 | |
148 | // the pixel counters are filled during the height-grid-calculations |
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230 | werner | 149 | mStockedArea = 100. * mStockedPixelCount; // m2 (1 height grid pixel = 10x10m) |
150 | |||
112 | Werner | 151 | // calculate the leaf area index (LAI) |
151 | iland | 152 | double LAI = mAggregatedLA / mStockedArea; |
112 | Werner | 153 | // calculate the intercepted radiation fraction using the law of Beer Lambert |
200 | werner | 154 | const double k = Model::settings().lightExtinctionCoefficient; |
112 | Werner | 155 | double interception_fraction = 1. - exp(-k * LAI); |
251 | werner | 156 | mEffectiveArea = mStockedArea * interception_fraction; // m2 |
112 | Werner | 157 | |
230 | werner | 158 | // calculate the total weighted leaf area on this RU: |
251 | werner | 159 | mLRI_modification = interception_fraction * mStockedArea / mAggregatedWLA; |
265 | werner | 160 | if (mLRI_modification == 0.) |
161 | qDebug() << "lri modifaction==0!"; |
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205 | werner | 162 | |
251 | werner | 163 | |
164 | DBGMODE(qDebug() << QString("production: LAI: %1 (intercepted fraction: %2, stocked area: %4). LRI-Multiplier: %3") |
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230 | werner | 165 | .arg(LAI) |
166 | .arg(interception_fraction) |
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251 | werner | 167 | .arg(mLRI_modification) |
230 | werner | 168 | .arg(mStockedArea); |
169 | ); |
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241 | werner | 170 | // soil water model - this determines soil water contents needed for response calculations |
171 | { |
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172 | DebugTimer tw("water:run"); |
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173 | mWater->run(); |
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174 | } |
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112 | Werner | 175 | |
176 | // invoke species specific calculation (3PG) |
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229 | werner | 177 | ResourceUnitSpecies *i; |
189 | iland | 178 | QVector<ResourceUnitSpecies>::iterator iend = mRUSpecies.end(); |
278 | werner | 179 | |
112 | Werner | 180 | for (i=mRUSpecies.begin(); i!=iend; ++i) { |
229 | werner | 181 | i->calculate(); |
280 | werner | 182 | qDebug() << "species" << (*i).species()->id() << "raw_gpp_m2" << i->prod3PG().GPPperArea() << "area:" << productiveArea() << "gpp:" << productiveArea()*i->prod3PG().GPPperArea(); |
112 | Werner | 183 | } |
110 | Werner | 184 | } |
185 | |||
251 | werner | 186 | void ResourceUnit::calculateInterceptedArea() |
187 | { |
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265 | werner | 188 | if (mAggregatedLR==0) { |
189 | mEffectiveArea_perWLA = 0.; |
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190 | return; |
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191 | } |
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251 | werner | 192 | Q_ASSERT(mAggregatedLR>0.); |
193 | mEffectiveArea_perWLA = mEffectiveArea / mAggregatedLR; |
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194 | qDebug() << "RU: aggregated lightresponse:" << mAggregatedLR << "eff.area./wla:" << mEffectiveArea_perWLA; |
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195 | } |
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196 | |||
189 | iland | 197 | void ResourceUnit::yearEnd() |
180 | werner | 198 | { |
199 | // calculate statistics for all tree species of the ressource unit |
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200 | int c = mRUSpecies.count(); |
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201 | for (int i=0;i<c; i++) { |
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277 | werner | 202 | mRUSpecies[i].statisticsDead().calculate(); // calculate the dead trees |
278 | werner | 203 | mRUSpecies[i].statisticsMgmt().calculate(); // stats of removed trees |
204 | mRUSpecies[i].updateGWL(); // get sum of dead trees (died + removed) |
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277 | werner | 205 | mRUSpecies[i].statistics().calculate(); // calculate the living (and add removed volume to gwl) |
180 | werner | 206 | mStatistics.add(mRUSpecies[i].statistics()); |
207 | } |
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208 | mStatistics.calculate(); // aggreagte on stand level |
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209 | } |
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210 | |||
241 | werner | 211 | /// refresh of tree based statistics. |
240 | werner | 212 | void ResourceUnit::createStandStatistics() |
213 | { |
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241 | werner | 214 | // clear statistics (ru-level and ru-species level) |
240 | werner | 215 | mStatistics.clear(); |
262 | werner | 216 | for (int i=0;i<mRUSpecies.count();i++) { |
240 | werner | 217 | mRUSpecies[i].statistics().clear(); |
262 | werner | 218 | mRUSpecies[i].statisticsDead().clear(); |
278 | werner | 219 | mRUSpecies[i].statisticsMgmt().clear(); |
262 | werner | 220 | } |
241 | werner | 221 | |
222 | // add all trees to the statistics objects of the species |
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240 | werner | 223 | foreach(const Tree &t, mTrees) { |
224 | if (!t.isDead()) |
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257 | werner | 225 | resourceUnitSpecies(t.species()).statistics().add(&t, 0); |
240 | werner | 226 | } |
241 | werner | 227 | // summarize statistics for the whole resource unit |
240 | werner | 228 | for (int i=0;i<mRUSpecies.count();i++) { |
229 | mRUSpecies[i].statistics().calculate(); |
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230 | mStatistics.add(mRUSpecies[i].statistics()); |
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231 | } |
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232 | } |