Application of Automatic Classification Method to Measuring Leaf Parameters of Mangrove
A novel tool,named as " Calculator of leaf parameter",for measuring leaf information of mangrove was developed by using automatic classification method and spatial analysis model in ArcGIS10 software.To verify the feasibility of the automatic classification method,50 different types of reference polygons were measured by the tool.The relative error is less than 1.3％.The area,perimeter,length and width of 900 leaves from six species of mangrove (Aegiceras corniculatum,Avicennia marina,Acanthus ilicifolius,Kandelia candel,Hibiscus tiliaceus,Bruguiera gymnorrhiza) in the Fujian Zhangjiang River Estuary Mangrove National Natural Reserve were measured by using the automatic classification,grid paper,photoshop software.The results showed that the leaf of B.gymnorrhiza was largest in the six species and A.marina' s was least.The leaf sizes of A.corniculatum and A.marina were relative uniform.The leaf shapes of B.gymnorrhiza and A.ilicifolius were long and narrow and the leaf of H.tiliaceus was nearly circular.It took 10 s for the automatic classification method to measure a leaf information,it took 20 s for photoshop,and it took 600 s for grid paper.The least time was needed by the automatic classification,but the longest time was used by grid paper among the three methods.The results of the three methods were significantly correlated with each other,however the automatic classification method was faster,higher efficiency and more information than the others.
国家科技期刊平台
NSTL
万方数据
维普
