treedyn3 forest simulation model

Bossel, Hartmut

doi:10.1016/0304-3800(95)00139-5

Cited by 154 publications

(93 citation statements)

References 8 publications

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“…However, the model does not include a soil component or feedbacks between the aboveground and belowground. TREEDYN3 (Bossel, 1996) has dynamic module for forest growth and yield, but has a simple soil decomposition sub-model (with only one soil carbon pool) and shares similar shortcomings with 3-PG. It does not take into account the effects of soil water on soil decomposition.…”

Section: Model Structurementioning

confidence: 99%

“…PAR is calculated based on the equations given in TREEDYN3 (Bossel, 1996), where the initial PAR (I 0PAR ) was computed as a function of solar constant (= 1360 W m − 2 ), solar radiation fraction ( PAR = 0.47), solar height (sin i), and light absorption based on solar height and atmospheric absorption factor K atm (Penning de Vries and van Laar, 1982;Richter, 1985):…”

Section: Photosynthetically Acti6e Radiation (Par)mentioning

confidence: 99%

“…The PAR of a cloudy day is assumed to be 20% of that of clear sky for the same day (Penning de Vries and van Laar, 1982, p. 103). This distinction can reduce the bias produced using an average radiation value because the photosensitivity curve is naturally nonlinear (Bossel, 1996). A cloud factor (C cld ) is used by Bossel (1996) to calculate monthly PAR.…”

Section: Photosynthetically Acti6e Radiation (Par)mentioning

confidence: 99%

“…This distinction can reduce the bias produced using an average radiation value because the photosensitivity curve is naturally nonlinear (Bossel, 1996). A cloud factor (C cld ) is used by Bossel (1996) to calculate monthly PAR. The value of C cld is determined using the assumption that the annual sum of radiation under clear and cloudy sky is equal to the observed total annual radiation (Bossel, 1996).…”

Section: Photosynthetically Acti6e Radiation (Par)mentioning

confidence: 99%

“…The TRIPLEX model, developed based on three well-established process models, i.e. 3-PG (Landsberg and Waring, 1997), TREEDYN3.0 (Bossel, 1996), and CEN-TURY4.0 (Parton et al, 1993), combines empirical and mechanistic components that can be used for (a) making forest management decisions (e.g. growth and yield prediction), (b) quantifying forest carbon budgets, and (c) assessing the effects of climate change on forests.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

TRIPLEX: a generic hybrid model for predicting forest growth and carbon and nitrogen dynamics

Peng

Liu

Dang

et al. 2002

Ecological Modelling

191

120

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Section: Model Structurementioning

confidence: 99%

Section: Photosynthetically Acti6e Radiation (Par)mentioning

confidence: 99%

Section: Photosynthetically Acti6e Radiation (Par)mentioning

confidence: 99%

Section: Photosynthetically Acti6e Radiation (Par)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

TRIPLEX: a generic hybrid model for predicting forest growth and carbon and nitrogen dynamics

Peng

Liu

Dang

et al. 2002

Ecological Modelling

191

120

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Allgemeine Systemtheorie und Kybernetik: Systemtheorie Dynamischer Systeme

Bossel

2004

Handbuch Der Umweltwissenschaften

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Ecohydrological modelling with EcH₂O‐iso to quantify forest and grassland effects on water partitioning and flux ages

Douinot

Tetzlaff

Maneta

et al. 2019

Hydrological Processes

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We used the new process‐based, tracer‐aided ecohydrological model EcH2O‐iso to assess the effects of vegetation cover on water balance partitioning and associated flux ages under temperate deciduous beech forest (F) and grassland (G) at an intensively monitored site in Northern Germany. Unique, multicriteria calibration, based on measured components of energy balance, hydrological function and biomass accumulation, resulted in good simulations reproducing measured soil surface temperatures, soil water content, transpiration, and biomass production. Model results showed the forest “used” more water than the grassland; of 620 mm average annual precipitation, losses were higher through interception (29% under F, 16% for G) and combined soil evaporation and transpiration (59% F, 47% G). Consequently, groundwater (GW) recharge was enhanced under grassland at 37% (~225 mm) of precipitation compared with 12% (~73 mm) for forest. The model tracked the ages of water in different storage compartments and associated fluxes. In shallow soil horizons, the average ages of soil water fluxes and evaporation were similar in both plots (~1.5 months), though transpiration and GW recharge were older under forest (~6 months compared with ~3 months for transpiration, and ~12 months compared with ~10 months for GW). Flux tracking using measured chloride data as a conservative tracer provided independent support for the modelling results, though highlighted effects of uncertainties in forest partitioning of evaporation and transpiration. By tracking storage—flux—age interactions under different land covers, EcH2O‐iso could quantify the effects of vegetation on water partitioning and age distributions. Given the likelihood of drier, warmer summers, such models can help assess the implications of land use for water resource availability to inform debates over building landscape resilience to climate change. Better conceptualization of soil water mixing processes and improved calibration data on leaf area index and root distribution appear obvious respective modelling and data needs for improved simulations.

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treedyn3 forest simulation model

Cited by 154 publications

References 8 publications

TRIPLEX: a generic hybrid model for predicting forest growth and carbon and nitrogen dynamics

TRIPLEX: a generic hybrid model for predicting forest growth and carbon and nitrogen dynamics

Allgemeine Systemtheorie und Kybernetik: Systemtheorie Dynamischer Systeme

Ecohydrological modelling with EcH₂O‐iso to quantify forest and grassland effects on water partitioning and flux ages

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treedyn3 forest simulation model

Cited by 154 publications

References 8 publications

TRIPLEX: a generic hybrid model for predicting forest growth and carbon and nitrogen dynamics

TRIPLEX: a generic hybrid model for predicting forest growth and carbon and nitrogen dynamics

Allgemeine Systemtheorie und Kybernetik: Systemtheorie Dynamischer Systeme

Ecohydrological modelling with EcH2O‐iso to quantify forest and grassland effects on water partitioning and flux ages

Contact Info

Product

Resources

About

Ecohydrological modelling with EcH₂O‐iso to quantify forest and grassland effects on water partitioning and flux ages