In dieser Lektion befinden sich 9 Karteikarten
NA
Diese Lektion wurde von gustavmeck erstellt.
Diese Lektion ist leider nicht zum lernen freigegeben.
- Components of growth and yield modelling? -Mortality -Diameter increment -Recruitment -Growth
- Process based models? Characteristics? Programms? -plenty of input data and calibration -reacts and adapts to changes in the system (soil, climate...) -explains relations and maps knowledge gaps -quantifies effect of physiological and physical growth ...
- 3PG. Characteristics? Dis-, Advantages? tree growth based on physiological principals (for many different forests) Bridges gap between mensuration based growth and yield models and process – based, C balance models Worldwide applied to many ...
- Statistical / empirical model (growth + yield model) ... -Based on statistical relations between tree / stand characters and tree / stand development → allometric relations -Multiple growth units: o Stand models o Size class models o Single tree ...
- Growth and yield tables. Practicality? Represents expected growth in evenaged stands at different ages Limited to silviculture used – interpolation between site classes and thinning regimes Not possible to take changes in growth environment ...
- why is it important on what kind of data the model ... Importance of input data type + get known of plot history (National forest inventory / permanent plots) - Maybe not representative Experiments: + Exact control & monitoring ...
- How to test models? - Unusual stands - Unusual treatments / measures - Is it possible to run unrealistic suggestions (planting...) - How dense can the ...
- How to evaluate models - results? - How does the model work? - Has it been validated on independent data? Test the predictions - What are the limits for background data?
- How is growth and yield modelled? • increment • mortality •recruitment