摘要
探索性空间分析从统计和图形图表的角度帮助人们更好地认识与理解数据,挖掘出数据的价值。以云浮市郁南县域内农林产业的分布及面积数据为例,基于GIS平台,利用ArcGIS中的探索性空间分析工具对农林业面积的空间特征进行了分析。研究结果表明:县域内东南部分布的农林业点数较密集,而西北部分布的农林业斑块面积较大,农林业点在道路、水源及城镇附近分布密集;距离道路、城镇和水源的远近从不同方面对农林业面积在空间上的分布产生了影响;荔枝和龙眼的面积在空间上显示出正关联性;但农林产业的斑块面积在空间上不具有相关性。
Exploratory space data analysis helps people learn and understand the data in statistics and graph ways,excavates out the potential and the valuable information from data.Take the data of Yunan County's forestry industry space distribution and area as an example,using the ESDA tools in ArcGIS,we tried to have a full understanding of its forestry industry's space distribution characteristics.And we came to the conclusion that in this county forestry industry quantity was denser in southeast,while the area of forestry's area was lager in northwest,forestry industry appears denser near the road,town and water.The distance from road,town and water would have different effect on the area of forestry industry distribution.The area of longan and litchi existed positive correlation.But forestry industry area didn't existed spatial autocorrelation.
出处
《地理空间信息》
2012年第5期44-46,6,共3页
Geospatial Information
基金
国家自然科学基金资助项目(40971210)
