Herman H. Shugart

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In many cases model integration treats models as software components only, ignoring the fluid relationship between models and reality, the evolving nature of models and their constant modification and recalibration. As a result, with integrated models we find increased complexity, where changes that used to impact only relatively contained models of(More)
Few old-growth stands remain in the matrix of secondary forests that dominates the eastern North American landscape. These remnant stands offer insight on the potential carbon (C) storage capacity of now-recovering secondary forests. We surveyed the remaining old-growth forests on sites characteristic of the general Mid-Atlantic United States and estimated(More)
Rising temperatures may force boreal forests in central Siberia to transition to alternative ecological states, affecting species composition and carbon storage dynamics. A full understanding of how forests of different ages respond to warming remains elusive, despite being fundamental for proper forest management in the region. To document the sensitivity(More)
In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: Keywords: Tropical forest Forest model Vegetation modelling Reduced precipitation(More)
Vegetation effects are currently disregarded in Palmer Drought Severity Index (PDSI), and the sensitivity of PDSI to the choice of potential evaporation (E P) parameterization is often a concern. We developed a revised self-calibrating PDSI model that replaces E P with leaf area index-based total evapotranspiration (ARTS E 0). It also included a simple(More)
Cyclic phenomena have been the focus of many studies in stressed conifer forests. In these systems, suppressed seedlings are released following the synchronous death of canopy trees. These cycles occur over hundreds of years, and thus studying them in the field is difficult, if not impossible in some cases. This difficulty highlights the advantages of(More)
The Russian boreal forest is one of the largest terrestrial biomes on the planet and its behavior has significant consequences for global and regional climate, the Russian economy, and the global carbon cycle. In order to make projections about the future of Russian forests, a fine-scale dynamic forest model FAREAST was run and tested throughout the country(More)
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