期刊论文

中文

中国农学通报

1000-6850

2012

28

1

73-79

10.3969/j.issn.1000-6850.2012.01.015

林业公益性行业科研专项经费项目“南方速生丰产林健康与活力维护技术研究”（200904006,201004014）.

本校为第一机构

分析炭疽病胁迫下杉木冠层的高光谱特征,探索建立病害胁迫下杉木冠层色素含量的高光谱估算模型,从而促进高光谱遥感技术在森林病虫害监测中的应用。于2011年4—6月,在湖南省攸县实地调查杉木炭疽病,并测定不同程度炭疽病胁迫下杉木冠层的光谱反射率及其色素含量。将冠层光谱、一阶微分及相应的色素含量数据分别进行相关分析,采用回归分析方法,选取部分样本建立色素含量估算模型,并利用其余的样本对模型进行精度检验。结果表明,可见光和近红外区域是病害杉木色素反射和吸收的敏感区域,色素含量与一阶微分光谱在红边(695~754nm)内相关性最高,单波段一阶微分光谱741nm处的相关系数最大。其中,以差值...

This study analyzed the hyper-spectral characteristics of the canopy of Chinese fir under the anthracnose stress, and explored and built the hyper-spectral estimation models of the pigment content in canopy of Chinese fir under the disease stress, the results will promote the application of the hyper-spectral remote sensing-technology in the forest pest and disease monitoring. From April to June in 2011, the anthracnose of Chinese fir had been investigated at Youxian in Hunan Province, and the pigment content and the spectral reflectance of Chi...