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Title: Are more complex physiological models of forest ecosystems better choices for plot and regional predictions?

Author: Jin, Wenchi; He, Hong S.; Thompson, Frank R.;

Date: 2016

Source: Environmental Modelling & Software. 75: 1-14.

Publication Series: Scientific Journal (JRNL)

Description: Process-based forest ecosystem models vary from simple physiological, complex physiological, to hybrid empirical-physiological models. Previous studies indicate that complex models provide the best prediction at plot scale with a temporal extent of less than 10 years, however, it is largely untested as to whether complex models outperform the other two types of models at plot and regional scale in longer timeframe (i.e. decades). We compared model predictions of aboveground carbon by one representative model of each model type (PnET-II, ED2 and LINKAGES v2.2, respectively) with field data (19-77 years) at both scales in the Central Hardwood Forests of the United States. At plot scale, predictions by complex physiological model were the most concordant with field data, suggesting that physiological processes are more influential than forest composition and structure. Hybrid model provided the best predictions at regional scale, suggesting that forest composition and structure may be more influential than physiological processes.

Keywords: Process-based forest ecosystem models, Carbon, Model comparison, Decadal scale, Plot scale, Regional scale

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Citation:


Jin, Wenchi; He, Hong S.; Thompson, Frank R., III. 2016. Are more complex physiological models of forest ecosystems better choices for plot and regional predictions?. Environmental Modelling & Software. 75: 1-14.

 


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