The Rodent Community Expert System Of Alashan Desert In Inner Mongolia

This study based on the data of rodent fauna investigated in different habitats of Alashan desert from1998 to 1999 and the positioning study of rodent population of farmland, rotational grazing and overgrazing three kinds of habitat from 2008 to 2013, the quantitative nonlinear dynamic analysis was conducted of three rodent species population capture rate and plant factors. We applied STEPWISE regression analysis (STEPWISE) and principal component analysis (PRINCOMP), respectively, combining the method of polynomial regression analysis (RSREG), to the Mid-day gerbil (Meriones meridianus), Three-toed jerboa (Dipus sagitta) and Desert hamster (Phodopus roborovskii) populations in farmland, rotational grazing and overgrazing three kinds of habitat.We used VB6.0, ACCESS, MAPGIS6.7 software development tools to develop the Alashan desert rodent community expert system. The system, organic combination of model technology and expert system technology, is a model based computers with integrated and intelligent decision-making system. On the organizational structure, the system included the database system that was from Alashan desert eight kinds of plants under three kinds of habitat factors and data of three dominate rodent species, knowledge base system that was from image information of three dominate rodent species, and the model library system that composed of 9 kinds of ecological model in three kinds of habitat. The expert system also included reasoning machine, man-machine interface and system maintenance program. System designing, the concept of software engineering was introduced. Software modules of the systems can be run under the same integrated environment. The results of this study were as follows:1. The dynamic relationship, between population relative quantity of the Mid-day gerbils, Three-toed jerboas and Desert hamsters and plant factors, can be predicted by nonlinear model from STEPWISE regression analysis (STEPWISE) and principal component analysis (PRINCOMP) combined with polynomial regression analysis (RSREG) of in three ecological habitat.2. The expert system of Alashan desert rodent community, exploited by software tools such as VB6.0, ACCESS, MAPGIS6.7, can basically reflect the dynamic change of the rodent communities with plant communities.