中国生物多样性研究中栅格大小的选择  

Study on Cell Size of Grid in Biodiversity of China

作　　者：邱丽氚 李雅丽 王建 吴晓湲 柳涛 常虹 路丹桂 QIU Lichuan;LI Yali;WANG Jian;WU Xiaoyuan;LIU Tao;CHANG Hong;LU Dangui(School of Geographical Science,Taiyuan Normal University,Jinzhong 030619,China)

机构地区：[1]太原师范学院地理科学学院,山西晋中030619

出　　处：《太原师范学院学报（自然科学版）》2020年第2期91-96,共6页Journal of Taiyuan Normal University:Natural Science Edition

基　　金：国家自然科学基金(41801016,41071335,41171423)。

摘　　要：研究矢量数据转换成栅格数据时选择合适的栅格大小,对研究大区域范围生物多样性具有指导意义.将中国县数据的矢量数据转换成栅格数据时,合适的栅格大小为0.1°×0.1°或10 km×10 km.中国壳斗科植物多样性研究从矢量数据转换成栅格数据时,选择栅格大小在0.1°×0.1°到0.4°×0.4°之间均可.经度差值(或纬度差值)与经向差值(或纬向差值)可互算,即0.1°相当于10 km,1°相当于100 km.在矢量数据转换栅格数据时,最好选择中心点法.Cell size of grid is properly chosen when data is transferred from vector to raster.It will be very instructive in biodiversity of large region area.Cell size of grid chosen is 0.1°×0.1°or 10 km×10 km when the vector of counties data in China is changed into their raster.Cell size of grid is chosen a value between 0.1°×0.1°and 0.4°×0.4°when the vector of Fagaceae diversity of China is changed into its raster.The degree of longitude difference(or latitude difference)may be changed to the km of longitude line(or latitude line).For example,0.1°is about 10 km.1°is about 100 km.The best method of conversion is cell center.

关 键 词：矢量数据 数据转换 栅格大小 县 中国 

分 类 号：Q948.2[生物学—植物学]