An empirical cohort model for management of Terra Firme forests in the Brazilian Amazon
Identifieur interne : 009013 ( Main/Exploration ); précédent : 009012; suivant : 009014An empirical cohort model for management of Terra Firme forests in the Brazilian Amazon
Auteurs : Denis Alder [Royaume-Uni] ; J. N. M Silva [Brésil]Source :
- Forest Ecology and Management [ 0378-1127 ] ; 2000.
Descripteurs français
- Wicri :
- topic : écologie, Mortalité, Forêt naturelle, Recrutement, Simulation.
English descriptors
- KwdEn :
- Actual volume development, Alder, Amazon, Amazonia, Annual mortality rate, Basal, Basal area, Baseline function, Best approach, Brazilian amazon, Cafogrom, Cafogrom model, Carapa guianensis, Central brazilian amazon, Centroid, Cohort, Cohort model, Commercial species, Commonwealth forestry review, Competitive status, Control plots, Control series, Crown status, Data points, Defect status, Defective trees, Development research, Diam increment, Diameter class, Diameter classes, Diameter increment, Diameter increment function, Different lists, Dominant trees, Eastern amazon, Eastern amazonia, Ecology, Elsevier science, Empirical basis, Equilibrium basal area, Error bars, Experimental plots, Firme forests, Forest ecology, Forest management, Group centroid, Growth model, Growth modelling, Growth models, Growth rates, Guianensis, Identical result, Increment, Increment multiplier, Internal report, Jacaranda copaia, Larger trees, Linear regression, Logging, Logging damage, Logging damage data, Maximum size, Measurement periods, Model simulations, More light, Mortality, Mortality limit, Mortality rates, Multiplier, Natural forest, Natural forest growth, Natural tropical forest, Permanent sample plots, Pinform model, Plant sciences, Point summarises, Queensland rainforests, Rainforest, Recruitment, Recruitment rates, Same logging intensity class, Same period, Sample plots, Sensitive parameter, Sensitivity analysis, Silva, Silva forest ecology, Similar species, Simulation, Simulation model, Site variation, Size classes, Skid trails, Small trees, Smaller trees, Solomon islands, Species composition, Species group, Species groups, Tapajos, Tapajos region, Term projections, Terra Firme forest, Total number, Total recruitment, Trees measurements, Trees species, Tropical forests, Tropical rainforest, Understorey trees, Vanclay.
- Teeft :
- Actual volume development, Alder, Amazon, Annual mortality rate, Basal, Basal area, Baseline function, Best approach, Brazilian amazon, Cafogrom, Cafogrom model, Carapa guianensis, Central brazilian amazon, Centroid, Cohort, Cohort model, Commercial species, Commonwealth forestry review, Competitive status, Control plots, Control series, Crown status, Data points, Defect status, Defective trees, Development research, Diam increment, Diameter class, Diameter classes, Diameter increment, Diameter increment function, Different lists, Dominant trees, Eastern amazon, Eastern amazonia, Ecology, Elsevier science, Empirical basis, Equilibrium basal area, Error bars, Experimental plots, Firme forests, Forest ecology, Forest management, Group centroid, Growth model, Growth modelling, Growth models, Growth rates, Guianensis, Identical result, Increment, Increment multiplier, Internal report, Jacaranda copaia, Larger trees, Linear regression, Logging, Logging damage, Logging damage data, Maximum size, Measurement periods, Model simulations, More light, Mortality, Mortality limit, Mortality rates, Multiplier, Natural forest, Natural forest growth, Permanent sample plots, Pinform model, Plant sciences, Point summarises, Queensland rainforests, Rainforest, Recruitment, Recruitment rates, Same logging intensity class, Same period, Sample plots, Sensitive parameter, Sensitivity analysis, Silva, Silva forest ecology, Similar species, Simulation, Simulation model, Site variation, Size classes, Skid trails, Small trees, Smaller trees, Solomon islands, Species composition, Species group, Species groups, Tapajos, Tapajos region, Term projections, Total number, Total recruitment, Trees measurements, Trees species, Tropical forests, Tropical rainforest, Understorey trees, Vanclay.
Abstract
Abstract: A model to project forest growth in the Terra Firme forests of the eastern Amazon is described. It is based on 12–17 years measurements from experimental plots at Jarı́ and Tapajós. Forest stands are represented by cohorts of species group, diameter, and defect. There are 54 species groups, with a robust diameter increment function fitted to each, tables of mortality by crown and defect status, and recruit lists by disturbance level and locality. Stand level functions partition trees by crown status, and modify growth for stand density. Recruitment is a function of basal-area losses. Evaluation compares model performance with two experiments involving heavy felling in Tapajos State Forest. At one site, total bole volume growth of all species over 45cm DBH was 2.56m3ha−1year−1 over 17 years, whereas the model projected 3.13m3ha−1year−1. At the other site, actual growth over 12 years was 0.39m3ha−1year−1, with the model giving an identical result. Both felled and control plots are compared in the study and accurately simulated. Some weaknesses in the model are discussed.
Url:
DOI: 10.1016/S0378-1127(99)00196-6
Affiliations:
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<term>Alder</term>
<term>Amazon</term>
<term>Amazonia</term>
<term>Annual mortality rate</term>
<term>Basal</term>
<term>Basal area</term>
<term>Baseline function</term>
<term>Best approach</term>
<term>Brazilian amazon</term>
<term>Cafogrom</term>
<term>Cafogrom model</term>
<term>Carapa guianensis</term>
<term>Central brazilian amazon</term>
<term>Centroid</term>
<term>Cohort</term>
<term>Cohort model</term>
<term>Commercial species</term>
<term>Commonwealth forestry review</term>
<term>Competitive status</term>
<term>Control plots</term>
<term>Control series</term>
<term>Crown status</term>
<term>Data points</term>
<term>Defect status</term>
<term>Defective trees</term>
<term>Development research</term>
<term>Diam increment</term>
<term>Diameter class</term>
<term>Diameter classes</term>
<term>Diameter increment</term>
<term>Diameter increment function</term>
<term>Different lists</term>
<term>Dominant trees</term>
<term>Eastern amazon</term>
<term>Eastern amazonia</term>
<term>Ecology</term>
<term>Elsevier science</term>
<term>Empirical basis</term>
<term>Equilibrium basal area</term>
<term>Error bars</term>
<term>Experimental plots</term>
<term>Firme forests</term>
<term>Forest ecology</term>
<term>Forest management</term>
<term>Group centroid</term>
<term>Growth model</term>
<term>Growth modelling</term>
<term>Growth models</term>
<term>Growth rates</term>
<term>Guianensis</term>
<term>Identical result</term>
<term>Increment</term>
<term>Increment multiplier</term>
<term>Internal report</term>
<term>Jacaranda copaia</term>
<term>Larger trees</term>
<term>Linear regression</term>
<term>Logging</term>
<term>Logging damage</term>
<term>Logging damage data</term>
<term>Maximum size</term>
<term>Measurement periods</term>
<term>Model simulations</term>
<term>More light</term>
<term>Mortality</term>
<term>Mortality limit</term>
<term>Mortality rates</term>
<term>Multiplier</term>
<term>Natural forest</term>
<term>Natural forest growth</term>
<term>Natural tropical forest</term>
<term>Permanent sample plots</term>
<term>Pinform model</term>
<term>Plant sciences</term>
<term>Point summarises</term>
<term>Queensland rainforests</term>
<term>Rainforest</term>
<term>Recruitment</term>
<term>Recruitment rates</term>
<term>Same logging intensity class</term>
<term>Same period</term>
<term>Sample plots</term>
<term>Sensitive parameter</term>
<term>Sensitivity analysis</term>
<term>Silva</term>
<term>Silva forest ecology</term>
<term>Similar species</term>
<term>Simulation</term>
<term>Simulation model</term>
<term>Site variation</term>
<term>Size classes</term>
<term>Skid trails</term>
<term>Small trees</term>
<term>Smaller trees</term>
<term>Solomon islands</term>
<term>Species composition</term>
<term>Species group</term>
<term>Species groups</term>
<term>Tapajos</term>
<term>Tapajos region</term>
<term>Term projections</term>
<term>Terra Firme forest</term>
<term>Total number</term>
<term>Total recruitment</term>
<term>Trees measurements</term>
<term>Trees species</term>
<term>Tropical forests</term>
<term>Tropical rainforest</term>
<term>Understorey trees</term>
<term>Vanclay</term>
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<keywords scheme="Teeft" xml:lang="en"><term>Actual volume development</term>
<term>Alder</term>
<term>Amazon</term>
<term>Annual mortality rate</term>
<term>Basal</term>
<term>Basal area</term>
<term>Baseline function</term>
<term>Best approach</term>
<term>Brazilian amazon</term>
<term>Cafogrom</term>
<term>Cafogrom model</term>
<term>Carapa guianensis</term>
<term>Central brazilian amazon</term>
<term>Centroid</term>
<term>Cohort</term>
<term>Cohort model</term>
<term>Commercial species</term>
<term>Commonwealth forestry review</term>
<term>Competitive status</term>
<term>Control plots</term>
<term>Control series</term>
<term>Crown status</term>
<term>Data points</term>
<term>Defect status</term>
<term>Defective trees</term>
<term>Development research</term>
<term>Diam increment</term>
<term>Diameter class</term>
<term>Diameter classes</term>
<term>Diameter increment</term>
<term>Diameter increment function</term>
<term>Different lists</term>
<term>Dominant trees</term>
<term>Eastern amazon</term>
<term>Eastern amazonia</term>
<term>Ecology</term>
<term>Elsevier science</term>
<term>Empirical basis</term>
<term>Equilibrium basal area</term>
<term>Error bars</term>
<term>Experimental plots</term>
<term>Firme forests</term>
<term>Forest ecology</term>
<term>Forest management</term>
<term>Group centroid</term>
<term>Growth model</term>
<term>Growth modelling</term>
<term>Growth models</term>
<term>Growth rates</term>
<term>Guianensis</term>
<term>Identical result</term>
<term>Increment</term>
<term>Increment multiplier</term>
<term>Internal report</term>
<term>Jacaranda copaia</term>
<term>Larger trees</term>
<term>Linear regression</term>
<term>Logging</term>
<term>Logging damage</term>
<term>Logging damage data</term>
<term>Maximum size</term>
<term>Measurement periods</term>
<term>Model simulations</term>
<term>More light</term>
<term>Mortality</term>
<term>Mortality limit</term>
<term>Mortality rates</term>
<term>Multiplier</term>
<term>Natural forest</term>
<term>Natural forest growth</term>
<term>Permanent sample plots</term>
<term>Pinform model</term>
<term>Plant sciences</term>
<term>Point summarises</term>
<term>Queensland rainforests</term>
<term>Rainforest</term>
<term>Recruitment</term>
<term>Recruitment rates</term>
<term>Same logging intensity class</term>
<term>Same period</term>
<term>Sample plots</term>
<term>Sensitive parameter</term>
<term>Sensitivity analysis</term>
<term>Silva</term>
<term>Silva forest ecology</term>
<term>Similar species</term>
<term>Simulation</term>
<term>Simulation model</term>
<term>Site variation</term>
<term>Size classes</term>
<term>Skid trails</term>
<term>Small trees</term>
<term>Smaller trees</term>
<term>Solomon islands</term>
<term>Species composition</term>
<term>Species group</term>
<term>Species groups</term>
<term>Tapajos</term>
<term>Tapajos region</term>
<term>Term projections</term>
<term>Total number</term>
<term>Total recruitment</term>
<term>Trees measurements</term>
<term>Trees species</term>
<term>Tropical forests</term>
<term>Tropical rainforest</term>
<term>Understorey trees</term>
<term>Vanclay</term>
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<term>Forêt naturelle</term>
<term>Recrutement</term>
<term>Simulation</term>
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<front><div type="abstract" xml:lang="en">Abstract: A model to project forest growth in the Terra Firme forests of the eastern Amazon is described. It is based on 12–17 years measurements from experimental plots at Jarı́ and Tapajós. Forest stands are represented by cohorts of species group, diameter, and defect. There are 54 species groups, with a robust diameter increment function fitted to each, tables of mortality by crown and defect status, and recruit lists by disturbance level and locality. Stand level functions partition trees by crown status, and modify growth for stand density. Recruitment is a function of basal-area losses. Evaluation compares model performance with two experiments involving heavy felling in Tapajos State Forest. At one site, total bole volume growth of all species over 45cm DBH was 2.56m3ha−1year−1 over 17 years, whereas the model projected 3.13m3ha−1year−1. At the other site, actual growth over 12 years was 0.39m3ha−1year−1, with the model giving an identical result. Both felled and control plots are compared in the study and accurately simulated. Some weaknesses in the model are discussed.</div>
</front>
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