Objective:Oleaceae was studied.The spatial distribution map of Oleaceae in China was made.The distribution law of Oleaceae was analyzed.It provided a basis for development and utiliza-tion,protection,restoration of plant.Methods:ArcGIS was used in the paper.Map of spatial distribu-tion of Oleaceae in China was made by the county.Indices of diversity pattern were calculated.The spa-tial diversity distribution pattern was obtained.The characteristics of the spatial distribution of Oleaceae were analyzed.Results:(1)The diversity of Oleaceae was generally high in the south and low in the north.(2)'Oleaceae distribution line'was from southeastern Tibet to southeastern Heilongjiang in Olea-ceae.There were many types and obvious aggregation of Oleaceae in the southeast of this line.But there were low aggregation of discrete distributions in the northwest of this line.(3)The Hengduan Mountains region was the diversity center of the distribution of Oleaceae in China.There were mainly three obvious diffusion channels from the center to the outside.(4)When the number of genera or spe-cies of Oleaceae in China was one,the number of patches,the area of patches,the largest patch in-dex,and the landscape shape index were the largest.And the index values of genera were higher than those of species.With the increase in the number of genera and species,the index data gradually de-creased.Conclusion:Oleaceae and its genera in China were unique patterns in their spatial distribu-tion,diversity and diffusion.
维普
万方数据
