ForestGrid: A Powerful Tool for Integrating, Displaying, Querying and Analyzing Theme Maps
馮豐隆, Fong‐Long Feng, Jiunn‐Lin Wu · NCHU Institutional Repository CRIS · 2005
Species distribution maps, habitat maps and human-induced effect maps are important bases of natural resource management and conservation.For decision-making easily, we developed an ecological habitat suitability program in doing data processing and analysis on grid map layers with Visual C++ and Net.In the paper, the distribution of some tree species and habitat factors in Taiwan with 22,501,993 40m*40m grids were used to demonstrate the function of the program.A user-friendly software -ForestGrid -was developed to aid the researchers in habitat suitability analysis and forest management.The contributions of the developed software include (1) the integrating, displaying and querying for the theme maps; (2) calculating the ecological amplitudes for different species; (3) investigating the relationship of the different theme maps via scatter diagrams; and (4) evaluating the importance (weighting) of habitat suitability indices by using the neural network.Forest-Grid was used to do habitat studies of comparing among different spatial scale and temporal scale.Different classification levels and the relationship of different habitat factors could be checked by Forest-Grid, also.To do analyzing the results of ecological assessment in ecological site quality (ESQ) and habitat suitability index (HSI) by Forest-Grid.The spatial variation of different scenarios in climate change could be checked easily by the Forest-Grid.【Keywords】grid、species distribution、habitat factor、ecological amplitude、habitat suitability index, (HSI)、scatter plot、neural network