Crops and grass/Description: Difference between revisions
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|Description=The LPJmL model is a global dynamic vegetation, agriculture and water balance model. The agriculture modules are intrinsically linked to natural vegetation via the carbon and water cycles and follow the same basic process-based modelling approaches, plus additional process representation (management) where needed. | |Description=The LPJmL model is a global dynamic vegetation, agriculture and water balance model. The agriculture modules are intrinsically linked to natural vegetation via the carbon and water cycles and follow the same basic process-based modelling approaches, plus additional process representation (management) where needed. | ||
Crop productivity is computed following the same representation of photosynthesis, maintenance and growth respiration as for natural vegetation (see Flowchart [[Carbon cycle and natural vegetation]]), but with additional mechanisms for phenological development, allocation of photosynthesis to crop components (leaves, roots, storage organ, mobile pool/stem), and management (Figure Flowchart), which can greatly affect crop productivity and food supply. | Crop productivity is computed following the same representation of photosynthesis, maintenance and growth respiration as for natural vegetation (see Figure Flowchart [[Carbon cycle and natural vegetation]]), but with additional mechanisms for phenological development, allocation of photosynthesis to crop components (leaves, roots, storage organ, mobile pool/stem), and management (Figure Flowchart), which can greatly affect crop productivity and food supply. | ||
In aggregating plant species to classes, the 12 crops currently implemented in LPJmL ([[Bondeau et al., 2007]]; [[Lapola et al., 2009]]) represent a broader group of crops, referred to as crop functional types (see [[Crop types in LPJmL]]). Currently, LPJmL has only a crude representation of managed grasslands and further development will take account of different management systems. These changes will be implemented in the IMAGE-LPJmL model as soon as available. | In aggregating plant species to classes, the 12 crops currently implemented in LPJmL ([[Bondeau et al., 2007]]; [[Lapola et al., 2009]]) represent a broader group of crops, referred to as crop functional types (see [[Crop types in LPJmL]]). Currently, LPJmL has only a crude representation of managed grasslands and further development will take account of different management systems. These changes will be implemented in the IMAGE-LPJmL model as soon as available. | ||
Revision as of 12:48, 24 June 2014
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