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Taking digital photographs as a form of documentation while conducting field work is common practice. There is a wealth of digital photographs collected by foresters who are interested in tree architecture. These high-resolution photographs are two-dimensional representations of the tree structure. However, it is possible to exploit tools such as GIS (e.g., ESRI ArcGIS) and three-dimensional modelling...
Gap fraction (GF) and clumping index (CI) play key roles in plant light interception, and therefore they have strong impacts on plant growth and canopy radiative transfer processes. On the one hand, in the field of remote sensing, leaves were often assumed to be randomly distributed in tree crowns in previous researches. While this assumption is not correct for many forest canopies, especially for...
Forest evolution simulation and visualization are challenging tasks in terms of complex interactions at various time and space scales. In this paper we present a forest evolution simulator system, based on individual-based, spatially explicit forest gap model, incorporating with fine-scale process of neighbor competition and understory recruitment. The forest evolution for each growth cycle is visualized...
Simulation of variable spatiotemporal-scale forest growth is a trend in virtual forest simulation field. Most existing virtual forest simulation systems have relatively fixed structure and weak reconstruction capability. Besides, there is much duplication of work between different-granularity forest simulation systems. Therefore, this paper presents component-based forest simulation system architecture...
Vegetation ecosystem simulation, at the landscape or crop level, is a challenging topic involving multidisciplinary aspects. Several models of biophysical components must be coupled properly in order to obtain a meaningful simulation. This also raises interesting problems in software architecture. In this paper, we first outline a synchronisation formalism and software architecture adapted to the...
Many experiments have verified that Sabina vulgaris shrubs had distinguished advantage in anti-drought, but a lot of past works were primarily focused on its eco-physiological characteristics, with its growth model almost never explored. In this work, the primary model of S. vulgaris shrubs is discussed and improved based on the dual-scale automaton model with the data from experiments. The diversification...
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