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{
    "url": "/models/17",
    "family": "DNDC",
    "title": "UK-DNDC",
    "description": "<p><p>UK-DNDC is a modification of DNDC, the\r\nprocess based model of carbon and nitrogen biogeochemistry in agro-ecosystems,\r\ndesigned specifically for application in the UK.&nbsp; This involved the addition of UK-specific\r\ninput data to the DNDC database and simulation of daily C and N inputs from\r\ngrazing animals and applied animal waste. The UK-DNDC model simulates N2O\r\nemissions from 18 crop types (crop height, optimum yield, C:N ratio of grain,\r\nroot and shoot and water requirement are parameterised) on the 3 dominant soil\r\ntypes in each county (Brown et al., 2002).&nbsp;\r\n</p>\r\n<p>An\r\nadditional irrigation module was included in UK-DNDC, which specified\r\nirrigation for each crop type (using county and crop specific statistics).&nbsp; The livestock element of the database was\r\nalso significantly modified from DNDC, details of which can be found in Brown\r\net al. (2002).</p>\r\n<p>UK-DNDC\r\nwas compared with 16 datasets of measured field experiments by Brown et al.\r\n(2002) and was found to generally be in agreement.&nbsp; Field scale validation of the model showed\r\nthat predictions matched observations well.</p>\r\n<p>The\r\nUK-DNDC was used to provide a national inventory of N2O emissions in 1990 and\r\nhas the advantage of taking contrasting soil, crop, climate and farming\r\npractises into account, unlike the traditional IPCC approach.&nbsp; This makes the model an ideal platform for\r\ninvestigating the effect of a number of different scenarios of N2O emissions\r\n(Brown et al., 2002).&nbsp; The 1990 inventory\r\nof N2O emissions from UK agriculture was estimated as 50.9Gg (31.7Gg from soil,\r\n5.9Gg from animals and 13.2Gg from the indirect sector).&nbsp; When these figures were compared to those\r\ncalculated by the IPCC methodology; emissions from soil and the indirect\r\nsectors were found to smaller with the UK-DNDC approach whereas emissions from\r\nthe livestock sector were larger.</p></p>",
    "keywords": "Agricultural cropland, Grassland, Greenhouse gas, Inventory, IPCC",
    "principal_authors": "",
    "contact_name": "Lorna Brown",
    "contact_email": "lorna.brown@bbsrc.ac.uk",
    "organization": "Institute of Grassland, Environmental Research, Okehampton, Devon, United Kingdom",
    "latest_version": "",
    "website": "",
    "language": "",
    "systems_supported": "",
    "source_code_available": "",
    "model_extended_family": "",
    "sectors": "Agriculture",
    "submitted_by": "",
    "reference_url": "",
    "published_on": "2002-07-01",
    "lft": 298,
    "rght": 313,
    "tree_id": 1,
    "level": 1,
    "parent": "http://gramp.ags.io/api/models/2/?format=api"
}

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Description

UK-DNDC is a modification of DNDC, the
process based model of carbon and nitrogen biogeochemistry in agro-ecosystems,
designed specifically for application in the UK.&nbsp; This involved the addition of UK-specific
input data to the DNDC database and simulation of daily C and N inputs from
grazing animals and applied animal waste. The UK-DNDC model simulates N2O
emissions from 18 crop types (crop height, optimum yield, C:N ratio of grain,
root and shoot and water requirement are parameterised) on the 3 dominant soil
types in each county (Brown et al., 2002).&nbsp;

An
additional irrigation module was included in UK-DNDC, which specified
irrigation for each crop type (using county and crop specific statistics).&nbsp; The livestock element of the database was
also significantly modified from DNDC, details of which can be found in Brown
et al. (2002).
UK-DNDC
was compared with 16 datasets of measured field experiments by Brown et al.
(2002) and was found to generally be in agreement.&nbsp; Field scale validation of the model showed
that predictions matched observations well.
The
UK-DNDC was used to provide a national inventory of N2O emissions in 1990 and
has the advantage of taking contrasting soil, crop, climate and farming
practises into account, unlike the traditional IPCC approach.&nbsp; This makes the model an ideal platform for
investigating the effect of a number of different scenarios of N2O emissions
(Brown et al., 2002).&nbsp; The 1990 inventory
of N2O emissions from UK agriculture was estimated as 50.9Gg (31.7Gg from soil,
5.9Gg from animals and 13.2Gg from the indirect sector).&nbsp; When these figures were compared to those
calculated by the IPCC methodology; emissions from soil and the indirect
sectors were found to smaller with the UK-DNDC approach whereas emissions from
the livestock sector were larger.

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Content:

{
 "url": "/models/17",
 "family": "DNDC",
 "title": "UK-DNDC",
 "description": "UK-DNDC is a modification of DNDC, the\r\nprocess based model of carbon and nitrogen biogeochemistry in agro-ecosystems,\r\ndesigned specifically for application in the UK.&nbsp; This involved the addition of UK-specific\r\ninput data to the DNDC database and simulation of daily C and N inputs from\r\ngrazing animals and applied animal waste. The UK-DNDC model simulates N2O\r\nemissions from 18 crop types (crop height, optimum yield, C:N ratio of grain,\r\nroot and shoot and water requirement are parameterised) on the 3 dominant soil\r\ntypes in each county (Brown et al., 2002).&nbsp;\r\n\r\nAn\r\nadditional irrigation module was included in UK-DNDC, which specified\r\nirrigation for each crop type (using county and crop specific statistics).&nbsp; The livestock element of the database was\r\nalso significantly modified from DNDC, details of which can be found in Brown\r\net al. (2002).\r\nUK-DNDC\r\nwas compared with 16 datasets of measured field experiments by Brown et al.\r\n(2002) and was found to generally be in agreement.&nbsp; Field scale validation of the model showed\r\nthat predictions matched observations well.\r\nThe\r\nUK-DNDC was used to provide a national inventory of N2O emissions in 1990 and\r\nhas the advantage of taking contrasting soil, crop, climate and farming\r\npractises into account, unlike the traditional IPCC approach.&nbsp; This makes the model an ideal platform for\r\ninvestigating the effect of a number of different scenarios of N2O emissions\r\n(Brown et al., 2002).&nbsp; The 1990 inventory\r\nof N2O emissions from UK agriculture was estimated as 50.9Gg (31.7Gg from soil,\r\n5.9Gg from animals and 13.2Gg from the indirect sector).&nbsp; When these figures were compared to those\r\ncalculated by the IPCC methodology; emissions from soil and the indirect\r\nsectors were found to smaller with the UK-DNDC approach whereas emissions from\r\nthe livestock sector were larger.",
 "keywords": "Agricultural cropland, Grassland, Greenhouse gas, Inventory, IPCC",
 "principal_authors": "",
 "contact_name": "Lorna Brown",
 "contact_email": "lorna.brown@bbsrc.ac.uk",
 "organization": "Institute of Grassland, Environmental Research, Okehampton, Devon, United Kingdom",
 "latest_version": "",
 "website": "",
 "language": "",
 "systems_supported": "",
 "source_code_available": "",
 "model_extended_family": "",
 "sectors": "Agriculture",
 "submitted_by": "",
 "reference_url": "",
 "published_on": "2002-07-01",
 "lft": 298,
 "rght": 313,
 "tree_id": 1,
 "level": 1,
 "parent": "http://gramp.ags.io/api/models/2/?format=api"
}

Gramp Model Instance