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有关林木株数的统计估值,国内外多采用实地抽样调查法。但遥感技术在林木勘察设计方面的应用,在各国已越来越受到重视。在实践中我们发现,由于受地面分辨率的限制,单纯运用卫星像片是不适宜作林木株数的定量分析的。航空遥感像片虽然具有象质清晰、高分辨率等长处,但在森林稠密的区域中,由于树冠相互重叠覆盖,同样造成了目视判读林木株数的困难。所以,要利用航片
Statistics on the number of trees in the statistics, more use of field sampling surveys at home and abroad. However, the application of remote sensing technology in forest survey and design has drawn more and more attention in various countries. In practice, we find that satellite images alone are not suitable for quantitative analysis of the number of trees due to the limitation of ground resolution. Although aerial remote sensing images have the advantages of clear image quality and high resolution, the dense overlapping of tree crowns also makes it difficult to visually determine the number of trees in densely populated areas. So, to use aerial photos