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{
    "url": "/models/10",
    "family": "DNDC",
    "title": "Forest-DNDC-Tropica",
    "description": "<p><p>PnET-N-DNDC was modified by Kiese et al.\r\n(2005) to produce reliable estimates of N2O emissions from tropical rainforest\r\necosystems, a significant source of global N2O.&nbsp;\r\nDifferences in forest growth and soil hydrological properties between\r\ntemperate and tropical regions meant the model required adaption prior to\r\napplication in tropical regions, although the general structure of the original\r\nmodel was maintained.&nbsp; </p>\r\n<p>New parameterisations associated with plant\r\nphysiology and soil hydrology were added to PnET-DNDC as well as algorithms\r\nrelating to biological fixation of N, representing the effects of heavy\r\nrainfall damage and of water stress on daily leaf litterfall.&nbsp; Soil moisture conditions drive a dentrifier\r\nactivity index which influences N turnover by denitrification.&nbsp; A biological N fixation algorithm was also\r\nadded. Tree growth functions were also modified in Forest-DNDC-Tropica to\r\nenable growth to occur throughout the year as it is not limited by temperature\r\n(Kiese et al., 2005).</p>\r\n<p>Daily N2O emissions simulated by Kiese et\r\nal. (2005) were in agreement with field observations in the wet tropics of\r\nAustralia and Costa Rica and the model reproduced dynamic N2O patterns during\r\nthe wet season.&nbsp; The model was shown to\r\nbe sensitive to soil properties (pH, clay content, soil organic carbon) and\r\nclimatic factors (rainfall and temperature).&nbsp;\r\nThe tool may be used to scale up N2O emissions from site to regional\r\nscale, in order to improve regional or global N2O inventories. Kiese et al.\r\n(2005) recognise that further validation against detailed observed data would\r\nbe desirable and that Forest-DNDC-Tropica should be networked with hydrological\r\nmodels in the future. </p>\r\n<p>Some further development of the\r\nForest-DNDC-Tropica model developed by Kiese et al. (2005) was then made by\r\nWerner (2007).&nbsp; Werner et al. (2007)\r\nprovides further details of the three sub-models which comprise\r\nForest-DNDC-Tropica and which simulate soil climate, soil decomposition and\r\nforest growth.&nbsp; The distribution of soil\r\norganic carbon for the Australian rainforest soils was revised.&nbsp; Pedo-transfer functions which are specific to\r\ntropical soils and vital for simulating soil hydrology were added. Parameters\r\nthat relate to wood mass, leaf mass and floor mass were updated with externally\r\nsupplied values specifically calibrated for tropical rainforests (Werner et\r\nal., 2006).&nbsp; The model was also revised\r\nby Werner (2007) to comply with ANSI C++.&nbsp;</p></p>",
    "keywords": "Biogeochemical Model, GIS, N2O Emission, PnET-DNDC, Regionalization, Sensitivity Analysis, Tropical Forest",
    "principal_authors": "Ralf Kiese, Changsheng Li, David W. Hilbert, Hans Paper and Klaus Butterbach-Bahl",
    "contact_name": "Klaus Butterbach-Bahl",
    "contact_email": "",
    "organization": "Institute for Meteorology/Climate Res., Atmospheric Environmental Research, Karlsruhe Research Centre, Kreuzeckbahnstrasse 19, Garmisch-Partenkirchen, Germany.",
    "latest_version": "",
    "website": "",
    "language": "",
    "systems_supported": "",
    "source_code_available": "",
    "model_extended_family": "UK-DNDC; NZ-DNDC; LANDSCAPE-DNDC; DNDC-EUROPE; RICE-DNDC;",
    "sectors": "Agriculture, Forestry",
    "submitted_by": "",
    "reference_url": "",
    "published_on": "2005-07-01",
    "lft": 227,
    "rght": 242,
    "tree_id": 1,
    "level": 2,
    "parent": "http://gramp.ags.io/api/models/9/?format=api"
}

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Description

PnET-N-DNDC was modified by Kiese et al.
(2005) to produce reliable estimates of N2O emissions from tropical rainforest
ecosystems, a significant source of global N2O.&nbsp;
Differences in forest growth and soil hydrological properties between
temperate and tropical regions meant the model required adaption prior to
application in tropical regions, although the general structure of the original
model was maintained.&nbsp; 
New parameterisations associated with plant
physiology and soil hydrology were added to PnET-DNDC as well as algorithms
relating to biological fixation of N, representing the effects of heavy
rainfall damage and of water stress on daily leaf litterfall.&nbsp; Soil moisture conditions drive a dentrifier
activity index which influences N turnover by denitrification.&nbsp; A biological N fixation algorithm was also
added. Tree growth functions were also modified in Forest-DNDC-Tropica to
enable growth to occur throughout the year as it is not limited by temperature
(Kiese et al., 2005).
Daily N2O emissions simulated by Kiese et
al. (2005) were in agreement with field observations in the wet tropics of
Australia and Costa Rica and the model reproduced dynamic N2O patterns during
the wet season.&nbsp; The model was shown to
be sensitive to soil properties (pH, clay content, soil organic carbon) and
climatic factors (rainfall and temperature).&nbsp;
The tool may be used to scale up N2O emissions from site to regional
scale, in order to improve regional or global N2O inventories. Kiese et al.
(2005) recognise that further validation against detailed observed data would
be desirable and that Forest-DNDC-Tropica should be networked with hydrological
models in the future. 
Some further development of the
Forest-DNDC-Tropica model developed by Kiese et al. (2005) was then made by
Werner (2007).&nbsp; Werner et al. (2007)
provides further details of the three sub-models which comprise
Forest-DNDC-Tropica and which simulate soil climate, soil decomposition and
forest growth.&nbsp; The distribution of soil
organic carbon for the Australian rainforest soils was revised.&nbsp; Pedo-transfer functions which are specific to
tropical soils and vital for simulating soil hydrology were added. Parameters
that relate to wood mass, leaf mass and floor mass were updated with externally
supplied values specifically calibrated for tropical rainforests (Werner et
al., 2006).&nbsp; The model was also revised
by Werner (2007) to comply with ANSI C++.&nbsp;

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Content:

{
 "url": "/models/10",
 "family": "DNDC",
 "title": "Forest-DNDC-Tropica",
 "description": "PnET-N-DNDC was modified by Kiese et al.\r\n(2005) to produce reliable estimates of N2O emissions from tropical rainforest\r\necosystems, a significant source of global N2O.&nbsp;\r\nDifferences in forest growth and soil hydrological properties between\r\ntemperate and tropical regions meant the model required adaption prior to\r\napplication in tropical regions, although the general structure of the original\r\nmodel was maintained.&nbsp; \r\nNew parameterisations associated with plant\r\nphysiology and soil hydrology were added to PnET-DNDC as well as algorithms\r\nrelating to biological fixation of N, representing the effects of heavy\r\nrainfall damage and of water stress on daily leaf litterfall.&nbsp; Soil moisture conditions drive a dentrifier\r\nactivity index which influences N turnover by denitrification.&nbsp; A biological N fixation algorithm was also\r\nadded. Tree growth functions were also modified in Forest-DNDC-Tropica to\r\nenable growth to occur throughout the year as it is not limited by temperature\r\n(Kiese et al., 2005).\r\nDaily N2O emissions simulated by Kiese et\r\nal. (2005) were in agreement with field observations in the wet tropics of\r\nAustralia and Costa Rica and the model reproduced dynamic N2O patterns during\r\nthe wet season.&nbsp; The model was shown to\r\nbe sensitive to soil properties (pH, clay content, soil organic carbon) and\r\nclimatic factors (rainfall and temperature).&nbsp;\r\nThe tool may be used to scale up N2O emissions from site to regional\r\nscale, in order to improve regional or global N2O inventories. Kiese et al.\r\n(2005) recognise that further validation against detailed observed data would\r\nbe desirable and that Forest-DNDC-Tropica should be networked with hydrological\r\nmodels in the future. \r\nSome further development of the\r\nForest-DNDC-Tropica model developed by Kiese et al. (2005) was then made by\r\nWerner (2007).&nbsp; Werner et al. (2007)\r\nprovides further details of the three sub-models which comprise\r\nForest-DNDC-Tropica and which simulate soil climate, soil decomposition and\r\nforest growth.&nbsp; The distribution of soil\r\norganic carbon for the Australian rainforest soils was revised.&nbsp; Pedo-transfer functions which are specific to\r\ntropical soils and vital for simulating soil hydrology were added. Parameters\r\nthat relate to wood mass, leaf mass and floor mass were updated with externally\r\nsupplied values specifically calibrated for tropical rainforests (Werner et\r\nal., 2006).&nbsp; The model was also revised\r\nby Werner (2007) to comply with ANSI C++.&nbsp;",
 "keywords": "Biogeochemical Model, GIS, N2O Emission, PnET-DNDC, Regionalization, Sensitivity Analysis, Tropical Forest",
 "principal_authors": "Ralf Kiese, Changsheng Li, David W. Hilbert, Hans Paper and Klaus Butterbach-Bahl",
 "contact_name": "Klaus Butterbach-Bahl",
 "contact_email": "",
 "organization": "Institute for Meteorology/Climate Res., Atmospheric Environmental Research, Karlsruhe Research Centre, Kreuzeckbahnstrasse 19, Garmisch-Partenkirchen, Germany.",
 "latest_version": "",
 "website": "",
 "language": "",
 "systems_supported": "",
 "source_code_available": "",
 "model_extended_family": "UK-DNDC; NZ-DNDC; LANDSCAPE-DNDC; DNDC-EUROPE; RICE-DNDC;",
 "sectors": "Agriculture, Forestry",
 "submitted_by": "",
 "reference_url": "",
 "published_on": "2005-07-01",
 "lft": 227,
 "rght": 242,
 "tree_id": 1,
 "level": 2,
 "parent": "http://gramp.ags.io/api/models/9/?format=api"
}

Gramp Model Instance