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草业学报 ›› 2009, Vol. 18 ›› Issue (4): 256-259.

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基于反射光谱技术评价草坪质量模型的研究

许岳飞1,金晶炜2,孙小玲1,周禾1*   

  1. 1.中国农业大学动物科技学院,北京 100193;
    2.中国农业大学资源与环境学院,北京 100193
  • 收稿日期:2008-10-15 出版日期:2009-08-20 发布日期:2009-08-20
  • 作者简介:许岳飞(1980-),男,内蒙古集宁人,在读博士。E-mail: xuyfgrass@gmail.com
  • 基金资助:
    国家科技支撑计划项目(21037037)资助。

A study on a model of turf quality evaluation based on reflectance spectroscopy

XU Yue-fei1, JIN Jing-wei2, SUN Xiao-ling1, ZHOU He1   

  1. 1.College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
  • Received:2008-10-15 Online:2009-08-20 Published:2009-08-20

摘要: 草坪植物叶片中的叶绿素是影响草坪颜色的重要色素,是评价草坪质量的内在因素。采用便携式光谱仪,在室外自然光照条件下,测定2种草坪群落的反射光谱,选择草坪叶片叶绿素含量的敏感光谱波段400~700 nm,应用偏最小二乘法(PLS)建立草坪植物叶片叶绿素与反射光谱的定量分析模型,结果表明,草坪植物叶绿素的预测值与实测值的相关性较好,相关系数为0.937,相对标准偏差为3.2%,建立偏最小二乘法估测草坪颜色的最优模型,均方根误差评价值较小(RMSE=0.26)。因此,反射光谱技术在园林绿化工程中为快速评价草坪质量提供了新的途径。

Abstract: Chlorophyll is an important pigment of turf color and it is an intrinsic factor for turf quality evaluation. The relationship between spectral properties of two turf communities and their chlorophyll contents were measured using reflectance spectroscopy with natural illumination. Results were analyzed by the partial least squares method. The model of chlorophyll content used reflectance spectroscopy in the range of 400-700 nm and gave a correlation coefficient between estimated values and real values of 0.937, with a relative standard deviation of 3.2%. A linear model of the partial least squares method with turf color was developed with a smaller RMSE (RMSE=0.26). Reflectance spectroscopy provides a new method for rapid turf quality evaluation in landscape engineering.

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