水稻冠层的田间原位三维数字化及虚拟层切法研究  

Three-Dimensional Digitization in situ of Rice Canopies and Virtual Stratified-Clipping Method

作　　者：郑邦友[1] 石利娟[2] 马韫韬[1] 邓启云[2] 李保国[1] 郭焱[1] 

机构地区：[1]中国农业大学资源与环境学院/植物-土壤相互作用教育部重点实验室,北京100193 [2]国家杂交水稻工程技术研究中心,长沙410125

出　　处：《中国农业科学》2009年第4期1181-1189,共9页Scientia Agricultura Sinica

基　　金：国家高技术研究发展计划(2006AA10Z231);教育部长江学者和创新团队发展计划(IRT0412)

摘　　要：【目的】旨在对水稻冠层空间结构精确定量化的方法进行探索。【方法】应用三维数字化技术在田间原位对灌浆期的水稻冠层结构进行测定,探讨该方法的可行性,并建立虚拟层切法以分析水稻的结构特征。【结果】使用三维数字化仪能够在田间原位精确的测定水稻各器官的空间位置和几何形态,从而获取田间水稻冠层的三维结构数据;应用虚拟层切法能够精确、多角度地分析冠层元素在三维空间的分布状况,但层切步长对计算结果有较明显的影响,需要根据具体对象进行合理的选择。【结论】三维数字化和虚拟层切法结合能够实现对水稻冠层结构的精确分析。【Objective】 The aim of this paper was to explore a technology which can accurately reflect the three-dimensional （3D） canopy architecture of rice plants. 【Method】 The 3D digitizing technology was used to measure the rice plant structure in situ at the filling stage and its accuracy was evaluated. Virtual stratified-clipping method was used to analyze the rice plant architecture. 【Result】 The 3D digitizing was an accurate method to collect the 3D coordinates of rice canopy in situ, thus quantify geometrical characteristics of rice plants. The virtual canopy, which was reconstructed according to the measured data, reflected the 3D architecture of rice in the field. The virtual stratified-clipping method could be used to accurately analyze the distribution of canopy elements in 3D space from different aspects. Appropriate virtual clipping interval should be employed in canopy architecture analysis, as too large or too small clipping interval may result in significant error or noise.【Conclusion】 The 3D digitizing technology and virtual stratified-clipping method are promising in quantifying the canopy architecture of rice plants.

关 键 词：超级稻 理想株型 冠层结构 虚拟植物 三维数字化 

分 类 号：S511[农业科学—作物学]