LIAN Ling,WANG Zhenxi,GAO Yali,et al.Spectral Characteristics of Tetranychus truncates Ehara of the Jujube-cut Leafhopper and Inversion of Pest Grade[J].Northern Horticulture,2020,44(08):32-37.[doi:10.11937/bfyy.20193326]
枣截形叶螨危害冠层光谱特征及虫害等级反演
- Title:
- Spectral Characteristics of Tetranychus truncates Ehara of the Jujube-cut Leafhopper and Inversion of Pest Grade
- Keywords:
- Tetranychus truncates Ehara; pest grade; hyperspectral; inversion model; jujube
- 文献标志码:
- A
- 摘要:
- 以截形叶螨危害下枣为试材,采用相关性分析、线性回归建模的方法,研究利用截形叶螨危害下枣冠层高光谱构建虫害等级反演模型,以期为遥感在大尺度范围内实现快速、准确、大面积监测截形叶螨提供思路。结果表明:随虫害等级的增加,冠层反射率逐渐降低,且存在红边位置“蓝移”的现象;以敏感波段896 nm为自变量,建立虫害等级单变量线性反演模型,拟合R2为0.536,预测R2为0.716,均方根误差为0.081,说明该敏感波段能达到对虫害等级预测的效果。
- Abstract:
- Using the method of correlation analysis and linear regression modeling,the method of constructing the inversion model of insect pest grade was studied by using the high spectrum of the coronal layer under the hazard of truncated leaf mite,with a view to providing the idea of realizing the rapid,accurate and large area monitoring of truncated leaf mite by remote sensing in large scale.The results showed that with the increase of pest level,the canopy reflectivity decreased gradually,and there was a phenomenon of red shift in the red edge position.A univariate linear inversion model of pest level was established with the sensitive band 896 nm as the independent variable,and R2 was fitted 0.536,the predicted R2 was 0.716,and the root mean square error was 0.081,which indicated that the sensitive band could achieve the effect on the pest level prediction.
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备注/Memo
第一作者简介:连玲(1995-),女,硕士研究生,研究方向为森林经理学。E-mail:1610168836@qq.com.责任作者:王振锡(1977-),男,博士,副教授,硕士生导师,现主要从事森林经理学等研究工作。E-mail:wangzhenxi2003@163.com.收稿日期:2019-11-29