Rev 1162 | Rev 1184 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1 | |||
671 | werner | 2 | /******************************************************************************************** |
3 | ** iLand - an individual based forest landscape and disturbance model |
||
4 | ** http://iland.boku.ac.at |
||
5 | ** Copyright (C) 2009- Werner Rammer, Rupert Seidl |
||
6 | ** |
||
7 | ** This program is free software: you can redistribute it and/or modify |
||
8 | ** it under the terms of the GNU General Public License as published by |
||
9 | ** the Free Software Foundation, either version 3 of the License, or |
||
10 | ** (at your option) any later version. |
||
11 | ** |
||
12 | ** This program is distributed in the hope that it will be useful, |
||
13 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
14 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||
15 | ** GNU General Public License for more details. |
||
16 | ** |
||
17 | ** You should have received a copy of the GNU General Public License |
||
18 | ** along with this program. If not, see <http://www.gnu.org/licenses/>. |
||
19 | ********************************************************************************************/ |
||
20 | |||
534 | werner | 21 | /** @class ResourceUnit |
22 | ResourceUnit is the spatial unit that encapsulates a forest stand and links to several environmental components |
||
23 | (Climate, Soil, Water, ...). |
||
697 | werner | 24 | @ingroup core |
25 | A resource unit has a size of (currently) 100x100m. Many processes in iLand operate on the level of a ResourceUnit. |
||
26 | Each resource unit has the same Climate and other properties (e.g. available nitrogen). |
||
27 | Proceses on this level are, inter alia, NPP Production (see Production3PG), water calculations (WaterCycle), the modeling |
||
28 | of dead trees (Snag) and soil processes (Soil). |
||
534 | werner | 29 | |
30 | */ |
||
31 | #include <QtCore> |
||
32 | #include "global.h" |
||
33 | |||
34 | #include "resourceunit.h" |
||
35 | #include "resourceunitspecies.h" |
||
36 | #include "speciesset.h" |
||
37 | #include "species.h" |
||
38 | #include "production3pg.h" |
||
39 | #include "model.h" |
||
40 | #include "climate.h" |
||
41 | #include "watercycle.h" |
||
42 | #include "snag.h" |
||
43 | #include "soil.h" |
||
44 | #include "helper.h" |
||
45 | |||
46 | ResourceUnit::~ResourceUnit() |
||
47 | { |
||
48 | if (mWater) |
||
49 | delete mWater; |
||
50 | mWater = 0; |
||
51 | if (mSnag) |
||
52 | delete mSnag; |
||
53 | if (mSoil) |
||
54 | delete mSoil; |
||
55 | |||
738 | werner | 56 | qDeleteAll(mRUSpecies); |
57 | |||
1159 | werner | 58 | if (mSaplings) |
59 | delete[] mSaplings; |
||
60 | |||
534 | werner | 61 | mSnag = 0; |
62 | mSoil = 0; |
||
1159 | werner | 63 | mSaplings = 0; |
534 | werner | 64 | } |
65 | |||
66 | ResourceUnit::ResourceUnit(const int index) |
||
67 | { |
||
68 | qDeleteAll(mRUSpecies); |
||
69 | mSpeciesSet = 0; |
||
70 | mClimate = 0; |
||
71 | mPixelCount=0; |
||
72 | mStockedArea = 0; |
||
73 | mStockedPixelCount = 0; |
||
1157 | werner | 74 | mStockableArea = 0; |
1024 | werner | 75 | mAggregatedWLA = 0.; |
76 | mAggregatedLA = 0.; |
||
77 | mAggregatedLR = 0.; |
||
78 | mEffectiveArea = 0.; |
||
79 | mLRI_modification = 0.; |
||
534 | werner | 80 | mIndex = index; |
81 | mSaplingHeightMap = 0; |
||
82 | mEffectiveArea_perWLA = 0.; |
||
83 | mWater = new WaterCycle(); |
||
84 | mSnag = 0; |
||
85 | mSoil = 0; |
||
1159 | werner | 86 | mSaplings = 0; |
569 | werner | 87 | mID = 0; |
534 | werner | 88 | } |
89 | |||
90 | void ResourceUnit::setup() |
||
91 | { |
||
92 | mWater->setup(this); |
||
93 | |||
94 | if (mSnag) |
||
95 | delete mSnag; |
||
96 | mSnag=0; |
||
97 | if (mSoil) |
||
98 | delete mSoil; |
||
99 | mSoil=0; |
||
100 | if (Model::settings().carbonCycleEnabled) { |
||
591 | werner | 101 | mSoil = new Soil(this); |
534 | werner | 102 | mSnag = new Snag; |
103 | mSnag->setup(this); |
||
104 | const XmlHelper &xml=GlobalSettings::instance()->settings(); |
||
105 | |||
106 | // setup contents of the soil of the RU; use values for C and N (kg/ha) |
||
107 | mSoil->setInitialState(CNPool(xml.valueDouble("model.site.youngLabileC", -1), |
||
108 | xml.valueDouble("model.site.youngLabileN", -1), |
||
109 | xml.valueDouble("model.site.youngLabileDecompRate", -1)), |
||
110 | CNPool(xml.valueDouble("model.site.youngRefractoryC", -1), |
||
111 | xml.valueDouble("model.site.youngRefractoryN", -1), |
||
112 | xml.valueDouble("model.site.youngRefractoryDecompRate", -1)), |
||
113 | CNPair(xml.valueDouble("model.site.somC", -1), xml.valueDouble("model.site.somN", -1))); |
||
114 | } |
||
115 | |||
1159 | werner | 116 | if (mSaplings) |
117 | delete mSaplings; |
||
118 | if (Model::settings().regenerationEnabled) { |
||
119 | mSaplings = new SaplingCell[cPxPerHectare]; |
||
120 | } |
||
121 | |||
534 | werner | 122 | // setup variables |
123 | mUnitVariables.nitrogenAvailable = GlobalSettings::instance()->settings().valueDouble("model.site.availableNitrogen", 40); |
||
124 | |||
895 | werner | 125 | // if dynamic coupling of soil nitrogen is enabled, a starting value for available N is calculated |
534 | werner | 126 | if (mSoil && Model::settings().useDynamicAvailableNitrogen && Model::settings().carbonCycleEnabled) { |
127 | mSoil->setClimateFactor(1.); |
||
128 | mSoil->calculateYear(); |
||
895 | werner | 129 | mUnitVariables.nitrogenAvailable = soil()->availableNitrogen(); |
534 | werner | 130 | } |
664 | werner | 131 | mHasDeadTrees = false; |
534 | werner | 132 | mAverageAging = 0.; |
133 | |||
134 | } |
||
135 | void ResourceUnit::setBoundingBox(const QRectF &bb) |
||
136 | { |
||
137 | mBoundingBox = bb; |
||
1118 | werner | 138 | mCornerOffset = GlobalSettings::instance()->model()->grid()->indexAt(bb.topLeft()); |
534 | werner | 139 | } |
140 | |||
141 | /// set species and setup the species-per-RU-data |
||
142 | void ResourceUnit::setSpeciesSet(SpeciesSet *set) |
||
143 | { |
||
144 | mSpeciesSet = set; |
||
145 | qDeleteAll(mRUSpecies); |
||
146 | |||
147 | //mRUSpecies.resize(set->count()); // ensure that the vector space is not relocated |
||
148 | for (int i=0;i<set->count();i++) { |
||
149 | Species *s = const_cast<Species*>(mSpeciesSet->species(i)); |
||
150 | if (!s) |
||
151 | throw IException("ResourceUnit::setSpeciesSet: invalid index!"); |
||
152 | |||
153 | ResourceUnitSpecies *rus = new ResourceUnitSpecies(); |
||
154 | mRUSpecies.push_back(rus); |
||
155 | rus->setup(s, this); |
||
156 | /* be careful: setup() is called with a pointer somewhere to the content of the mRUSpecies container. |
||
157 | If the container memory is relocated (QVector), the pointer gets invalid!!! |
||
158 | Therefore, a resize() is called before the loop (no resize()-operations during the loop)! */ |
||
159 | //mRUSpecies[i].setup(s,this); // setup this element |
||
160 | |||
161 | } |
||
162 | } |
||
163 | |||
164 | ResourceUnitSpecies &ResourceUnit::resourceUnitSpecies(const Species *species) |
||
165 | { |
||
166 | return *mRUSpecies[species->index()]; |
||
167 | } |
||
168 | |||
1040 | werner | 169 | const ResourceUnitSpecies *ResourceUnit::constResourceUnitSpecies(const Species *species) const |
170 | { |
||
171 | return mRUSpecies[species->index()]; |
||
172 | } |
||
173 | |||
534 | werner | 174 | Tree &ResourceUnit::newTree() |
175 | { |
||
176 | // start simple: just append to the vector... |
||
177 | if (mTrees.isEmpty()) |
||
178 | mTrees.reserve(100); // reserve a junk of memory for trees |
||
179 | |||
180 | mTrees.append(Tree()); |
||
181 | return mTrees.back(); |
||
182 | } |
||
183 | int ResourceUnit::newTreeIndex() |
||
184 | { |
||
734 | werner | 185 | newTree(); |
186 | return mTrees.count()-1; // return index of the last tree |
||
534 | werner | 187 | } |
188 | |||
189 | /// remove dead trees from tree list |
||
190 | /// reduce size of vector if lots of space is free |
||
191 | /// tests showed that this way of cleanup is very fast, |
||
192 | /// because no memory allocations are performed (simple memmove()) |
||
193 | /// when trees are moved. |
||
194 | void ResourceUnit::cleanTreeList() |
||
195 | { |
||
664 | werner | 196 | if (!mHasDeadTrees) |
197 | return; |
||
198 | |||
534 | werner | 199 | QVector<Tree>::iterator last=mTrees.end()-1; |
200 | QVector<Tree>::iterator current = mTrees.begin(); |
||
201 | while (last>=current && (*last).isDead()) |
||
202 | --last; |
||
203 | |||
204 | while (current<last) { |
||
205 | if ((*current).isDead()) { |
||
206 | *current = *last; // copy data! |
||
207 | --last; // |
||
208 | while (last>=current && (*last).isDead()) |
||
209 | --last; |
||
210 | } |
||
211 | ++current; |
||
212 | } |
||
213 | ++last; // last points now to the first dead tree |
||
214 | |||
215 | // free ressources |
||
216 | if (last!=mTrees.end()) { |
||
217 | mTrees.erase(last, mTrees.end()); |
||
218 | if (mTrees.capacity()>100) { |
||
219 | if (mTrees.count() / double(mTrees.capacity()) < 0.2) { |
||
220 | //int target_size = mTrees.count()*2; |
||
221 | //qDebug() << "reduce size from "<<mTrees.capacity() << "to" << target_size; |
||
222 | //mTrees.reserve(qMax(target_size, 100)); |
||
664 | werner | 223 | if (logLevelDebug()) |
224 | qDebug() << "reduce tree storage of RU" << index() << " from " << mTrees.capacity() << "to" << mTrees.count(); |
||
534 | werner | 225 | mTrees.squeeze(); |
226 | } |
||
227 | } |
||
228 | } |
||
664 | werner | 229 | mHasDeadTrees = false; // reset flag |
534 | werner | 230 | } |
231 | |||
232 | void ResourceUnit::newYear() |
||
233 | { |
||
234 | mAggregatedWLA = 0.; |
||
235 | mAggregatedLA = 0.; |
||
236 | mAggregatedLR = 0.; |
||
237 | mEffectiveArea = 0.; |
||
238 | mPixelCount = mStockedPixelCount = 0; |
||
239 | snagNewYear(); |
||
609 | werner | 240 | if (mSoil) |
241 | mSoil->newYear(); |
||
534 | werner | 242 | // clear statistics global and per species... |
243 | QList<ResourceUnitSpecies*>::const_iterator i; |
||
244 | QList<ResourceUnitSpecies*>::const_iterator iend = mRUSpecies.constEnd(); |
||
245 | mStatistics.clear(); |
||
246 | for (i=mRUSpecies.constBegin(); i!=iend; ++i) { |
||
247 | (*i)->statisticsDead().clear(); |
||
248 | (*i)->statisticsMgmt().clear(); |
||
249 | } |
||
250 | |||
251 | } |
||
252 | |||
253 | /** production() is the "stand-level" part of the biomass production (3PG). |
||
254 | - The amount of radiation intercepted by the stand is calculated |
||
255 | - the water cycle is calculated |
||
256 | - statistics for each species are cleared |
||
257 | - The 3PG production for each species and ressource unit is called (calculates species-responses and NPP production) |
||
258 | see also: http://iland.boku.ac.at/individual+tree+light+availability */ |
||
259 | void ResourceUnit::production() |
||
260 | { |
||
261 | |||
1107 | werner | 262 | if (mAggregatedWLA==0. || mPixelCount==0) { |
936 | werner | 263 | // clear statistics of resourceunitspecies |
264 | for ( QList<ResourceUnitSpecies*>::const_iterator i=mRUSpecies.constBegin(); i!=mRUSpecies.constEnd(); ++i) |
||
265 | (*i)->statistics().clear(); |
||
266 | mEffectiveArea = 0.; |
||
267 | mStockedArea = 0.; |
||
534 | werner | 268 | return; |
269 | } |
||
270 | |||
271 | // the pixel counters are filled during the height-grid-calculations |
||
272 | mStockedArea = 100. * mStockedPixelCount; // m2 (1 height grid pixel = 10x10m) |
||
1107 | werner | 273 | if (leafAreaIndex()<3.) { |
274 | // estimate stocked area based on crown projections |
||
275 | double crown_area = 0.; |
||
276 | for (int i=0;i<mTrees.count();++i) |
||
277 | crown_area += mTrees.at(i).isDead() ? 0. : mTrees.at(i).stamp()->reader()->crownArea(); |
||
534 | werner | 278 | |
1157 | werner | 279 | if (logLevelDebug()) |
280 | qDebug() << "crown area: lai" << leafAreaIndex() << "stocked area (pixels)" << mStockedArea << " area (crown)" << crown_area; |
||
281 | if (leafAreaIndex()<1.) { |
||
282 | mStockedArea = std::min(crown_area, mStockedArea); |
||
1107 | werner | 283 | } else { |
284 | |||
1157 | werner | 285 | double px_frac = (leafAreaIndex()-1.)/2.; // 0 at LAI=1, 1 at LAI=3 |
286 | mStockedArea = mStockedArea * px_frac + std::min(crown_area, mStockedArea) * (1. - px_frac); |
||
1107 | werner | 287 | } |
288 | if (mStockedArea==0.) |
||
289 | return; |
||
290 | } |
||
291 | |||
534 | werner | 292 | // calculate the leaf area index (LAI) |
293 | double LAI = mAggregatedLA / mStockedArea; |
||
294 | // calculate the intercepted radiation fraction using the law of Beer Lambert |
||
295 | const double k = Model::settings().lightExtinctionCoefficient; |
||
296 | double interception_fraction = 1. - exp(-k * LAI); |
||
297 | mEffectiveArea = mStockedArea * interception_fraction; // m2 |
||
298 | |||
299 | // calculate the total weighted leaf area on this RU: |
||
300 | mLRI_modification = interception_fraction * mStockedArea / mAggregatedWLA; // p_WLA |
||
301 | if (mLRI_modification == 0.) |
||
302 | qDebug() << "lri modifaction==0!"; |
||
303 | |||
611 | werner | 304 | if (logLevelDebug()) { |
534 | werner | 305 | DBGMODE(qDebug() << QString("production: LAI: %1 (intercepted fraction: %2, stocked area: %4). LRI-Multiplier: %3") |
306 | .arg(LAI) |
||
307 | .arg(interception_fraction) |
||
308 | .arg(mLRI_modification) |
||
309 | .arg(mStockedArea); |
||
310 | ); |
||
611 | werner | 311 | } |
534 | werner | 312 | |
313 | // calculate LAI fractions |
||
314 | QList<ResourceUnitSpecies*>::const_iterator i; |
||
315 | QList<ResourceUnitSpecies*>::const_iterator iend = mRUSpecies.constEnd(); |
||
316 | double ru_lai = leafAreaIndex(); |
||
317 | if (ru_lai < 1.) |
||
318 | ru_lai = 1.; |
||
319 | // note: LAIFactors are only 1 if sum of LAI is > 1. (see WaterCycle) |
||
320 | for (i=mRUSpecies.constBegin(); i!=iend; ++i) { |
||
720 | werner | 321 | double lai_factor = (*i)->statistics().leafAreaIndex() / ru_lai; |
1157 | werner | 322 | |
323 | //DBGMODE( |
||
324 | if (lai_factor > 1.) { |
||
325 | const ResourceUnitSpecies* rus=*i; |
||
326 | qDebug() << "LAI factor > 1: species ru-index:" << rus->species()->name() << rus->ru()->index(); |
||
327 | } |
||
328 | //); |
||
720 | werner | 329 | (*i)->setLAIfactor( lai_factor ); |
534 | werner | 330 | } |
331 | |||
332 | // soil water model - this determines soil water contents needed for response calculations |
||
333 | { |
||
334 | mWater->run(); |
||
335 | } |
||
336 | |||
337 | // invoke species specific calculation (3PG) |
||
338 | for (i=mRUSpecies.constBegin(); i!=iend; ++i) { |
||
1157 | werner | 339 | //DBGMODE( |
340 | if ((*i)->LAIfactor() > 1.) { |
||
341 | const ResourceUnitSpecies* rus=*i; |
||
342 | qDebug() << "LAI factor > 1: species ru-index value:" << rus->species()->name() << rus->ru()->index() << rus->LAIfactor(); |
||
343 | } |
||
344 | //); |
||
534 | werner | 345 | (*i)->calculate(); // CALCULATE 3PG |
346 | if (logLevelInfo() && (*i)->LAIfactor()>0) |
||
347 | qDebug() << "ru" << mIndex << "species" << (*i)->species()->id() << "LAIfraction" << (*i)->LAIfactor() << "raw_gpp_m2" |
||
348 | << (*i)->prod3PG().GPPperArea() << "area:" << productiveArea() << "gpp:" |
||
349 | << productiveArea()*(*i)->prod3PG().GPPperArea() |
||
350 | << "aging(lastyear):" << averageAging() << "f_env,yr:" << (*i)->prod3PG().fEnvYear(); |
||
351 | } |
||
352 | } |
||
353 | |||
354 | void ResourceUnit::calculateInterceptedArea() |
||
355 | { |
||
356 | if (mAggregatedLR==0) { |
||
357 | mEffectiveArea_perWLA = 0.; |
||
358 | return; |
||
359 | } |
||
360 | Q_ASSERT(mAggregatedLR>0.); |
||
361 | mEffectiveArea_perWLA = mEffectiveArea / mAggregatedLR; |
||
362 | if (logLevelDebug()) qDebug() << "RU: aggregated lightresponse:" << mAggregatedLR << "eff.area./wla:" << mEffectiveArea_perWLA; |
||
363 | } |
||
364 | |||
365 | // function is called immediately before the growth of individuals |
||
366 | void ResourceUnit::beforeGrow() |
||
367 | { |
||
368 | mAverageAging = 0.; |
||
369 | } |
||
370 | |||
371 | // function is called after finishing the indivdual growth / mortality. |
||
372 | void ResourceUnit::afterGrow() |
||
373 | { |
||
374 | mAverageAging = leafArea()>0.?mAverageAging/leafArea():0; // calculate aging value (calls to addAverageAging() by individual trees) |
||
375 | if (mAverageAging>0. && mAverageAging<0.00001) |
||
376 | qDebug() << "ru" << mIndex << "aging <0.00001"; |
||
377 | if (mAverageAging<0. || mAverageAging>1.) |
||
378 | qDebug() << "Average aging invalid: (RU, LAI):" << index() << mStatistics.leafAreaIndex(); |
||
379 | } |
||
380 | |||
381 | void ResourceUnit::yearEnd() |
||
382 | { |
||
383 | // calculate statistics for all tree species of the ressource unit |
||
384 | int c = mRUSpecies.count(); |
||
385 | for (int i=0;i<c; i++) { |
||
386 | mRUSpecies[i]->statisticsDead().calculate(); // calculate the dead trees |
||
387 | mRUSpecies[i]->statisticsMgmt().calculate(); // stats of removed trees |
||
388 | mRUSpecies[i]->updateGWL(); // get sum of dead trees (died + removed) |
||
389 | mRUSpecies[i]->statistics().calculate(); // calculate the living (and add removed volume to gwl) |
||
390 | mStatistics.add(mRUSpecies[i]->statistics()); |
||
391 | } |
||
392 | mStatistics.calculate(); // aggreagte on stand level |
||
393 | |||
1157 | werner | 394 | // update carbon flows |
395 | if (soil() && GlobalSettings::instance()->model()->settings().carbonCycleEnabled) { |
||
396 | double area_factor = stockableArea() / cRUArea; //conversion factor |
||
397 | mUnitVariables.carbonUptake = statistics().npp() * biomassCFraction; |
||
398 | mUnitVariables.carbonUptake += statistics().nppSaplings() * biomassCFraction; |
||
399 | |||
400 | double to_atm = snag()->fluxToAtmosphere().C / area_factor; // from snags, kgC/ha |
||
401 | to_atm += soil()->fluxToAtmosphere().C *cRUArea/10.; // soil: t/ha -> t/m2 -> kg/ha |
||
402 | mUnitVariables.carbonToAtm = to_atm; |
||
403 | |||
404 | double to_dist = snag()->fluxToDisturbance().C / area_factor; |
||
405 | to_dist += soil()->fluxToDisturbance().C * cRUArea/10.; |
||
406 | double to_harvest = snag()->fluxToExtern().C / area_factor; |
||
407 | |||
408 | mUnitVariables.NEP = mUnitVariables.carbonUptake - to_atm - to_dist - to_harvest; // kgC/ha |
||
409 | |||
410 | // incremental values.... |
||
411 | mUnitVariables.cumCarbonUptake += mUnitVariables.carbonUptake; |
||
412 | mUnitVariables.cumCarbonToAtm += mUnitVariables.carbonToAtm; |
||
413 | mUnitVariables.cumNEP += mUnitVariables.NEP; |
||
414 | |||
415 | } |
||
416 | |||
534 | werner | 417 | } |
418 | |||
419 | void ResourceUnit::addTreeAgingForAllTrees() |
||
420 | { |
||
421 | mAverageAging = 0.; |
||
422 | foreach(const Tree &t, mTrees) { |
||
423 | addTreeAging(t.leafArea(), t.species()->aging(t.height(), t.age())); |
||
424 | } |
||
425 | |||
426 | } |
||
427 | |||
428 | /// refresh of tree based statistics. |
||
429 | /// WARNING: this function is only called once (during startup). |
||
430 | /// see function "yearEnd()" above!!! |
||
431 | void ResourceUnit::createStandStatistics() |
||
432 | { |
||
433 | // clear statistics (ru-level and ru-species level) |
||
434 | mStatistics.clear(); |
||
435 | for (int i=0;i<mRUSpecies.count();i++) { |
||
436 | mRUSpecies[i]->statistics().clear(); |
||
437 | mRUSpecies[i]->statisticsDead().clear(); |
||
438 | mRUSpecies[i]->statisticsMgmt().clear(); |
||
1178 | werner | 439 | mRUSpecies[i]->saplingStat().clearStatistics(); |
534 | werner | 440 | } |
441 | |||
442 | // add all trees to the statistics objects of the species |
||
443 | foreach(const Tree &t, mTrees) { |
||
444 | if (!t.isDead()) |
||
445 | resourceUnitSpecies(t.species()).statistics().add(&t, 0); |
||
446 | } |
||
1178 | werner | 447 | // summarise sapling stats |
448 | GlobalSettings::instance()->model()->saplings()->calculateInitialStatistics(this); |
||
449 | |||
534 | werner | 450 | // summarize statistics for the whole resource unit |
451 | for (int i=0;i<mRUSpecies.count();i++) { |
||
1178 | werner | 452 | mRUSpecies[i]->saplingStat().calculate(mRUSpecies[i]->species(), this); |
453 | mRUSpecies[i]->statistics().add(&mRUSpecies[i]->saplingStat()); |
||
534 | werner | 454 | mRUSpecies[i]->statistics().calculate(); |
455 | mStatistics.add(mRUSpecies[i]->statistics()); |
||
456 | } |
||
457 | mStatistics.calculate(); |
||
575 | werner | 458 | mAverageAging = mStatistics.leafAreaIndex()>0.?mAverageAging / (mStatistics.leafAreaIndex()*stockableArea()):0.; |
534 | werner | 459 | if (mAverageAging<0. || mAverageAging>1.) |
460 | qDebug() << "Average aging invalid: (RU, LAI):" << index() << mStatistics.leafAreaIndex(); |
||
1178 | werner | 461 | |
534 | werner | 462 | } |
463 | |||
720 | werner | 464 | /** recreate statistics. This is necessary after events that changed the structure |
465 | of the stand *after* the growth of trees (where stand statistics are updated). |
||
466 | An example is after disturbances. */ |
||
1157 | werner | 467 | void ResourceUnit::recreateStandStatistics(bool recalculate_stats) |
720 | werner | 468 | { |
469 | for (int i=0;i<mRUSpecies.count();i++) { |
||
470 | mRUSpecies[i]->statistics().clear(); |
||
471 | } |
||
472 | foreach(const Tree &t, mTrees) { |
||
473 | resourceUnitSpecies(t.species()).statistics().add(&t, 0); |
||
474 | } |
||
1157 | werner | 475 | |
476 | if (recalculate_stats) { |
||
477 | for (int i=0;i<mRUSpecies.count();i++) { |
||
478 | mRUSpecies[i]->statistics().calculate(); |
||
479 | } |
||
937 | werner | 480 | } |
720 | werner | 481 | } |
482 | |||
824 | werner | 483 | |
534 | werner | 484 | |
485 | |||
486 | void ResourceUnit::calculateCarbonCycle() |
||
487 | { |
||
488 | if (!snag()) |
||
489 | return; |
||
490 | |||
491 | // (1) calculate the snag dynamics |
||
492 | // because all carbon/nitrogen-flows from trees to the soil are routed through the snag-layer, |
||
493 | // all soil inputs (litter + deadwood) are collected in the Snag-object. |
||
494 | snag()->calculateYear(); |
||
495 | soil()->setClimateFactor( snag()->climateFactor() ); // the climate factor is only calculated once |
||
496 | soil()->setSoilInput( snag()->labileFlux(), snag()->refractoryFlux()); |
||
497 | soil()->calculateYear(); // update the ICBM/2N model |
||
498 | // use available nitrogen? |
||
499 | if (Model::settings().useDynamicAvailableNitrogen) |
||
500 | mUnitVariables.nitrogenAvailable = soil()->availableNitrogen(); |
||
501 | |||
502 | // debug output |
||
503 | if (GlobalSettings::instance()->isDebugEnabled(GlobalSettings::dCarbonCycle) && !snag()->isEmpty()) { |
||
504 | DebugList &out = GlobalSettings::instance()->debugList(index(), GlobalSettings::dCarbonCycle); |
||
605 | werner | 505 | out << index() << id(); // resource unit index and id |
534 | werner | 506 | out << snag()->debugList(); // snag debug outs |
507 | out << soil()->debugList(); // ICBM/2N debug outs |
||
508 | } |
||
509 | |||
510 | } |
||
600 | werner | 511 | |
512 |