Evaluation of Paeonia ostii T. Hong et J. X. Zhang's cultivation adaptability in Chongqing area based on Arc-GIS.
Cultivation adaptability of P. ostii T. Hong et J. X. Zhang in Chongqing area were evaluated and the appropriate classification figures of different factors were developed based on evaluation modelling, standardization of influence factors, and expert scoring from different factors such as altitude, precipitation, slope and aspect by using Arc-GIS 9.3 software. The evaluation of altitude, slope and annual average temperature factors had similar results that this species had higher adaptability for cultivation in southeast and northeast of Chongqing, while the evaluation of mean annual precipitation and soil pH factors showed similarity to some extent in appropriate classification figures. The most suitable areas for P. ostii 'cultivation were mainly distributed in Wuxi, Wushan, Fengjie and Kaixian that located in northeast Chongqing based on factor-weight distribution evaluation. This result was consisted with actual field experiments of species introduction and cultivation.