您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Estimation of vertical distribution of chlorophyll concentration by bi-directional canopy reflectance spectra in winter wheat

文献类型： 外文期刊

作者： Huang, Wenjiang 1 ; Wang, Zhijie 1 ; Huang, Linsheng 6 ; Lamb, David W. 4 ; Ma, Zhihong 1 ; Zhang, Jincheng 1 ; Wang, 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China

2.Chinese Acad Sci, Inst Remote Sensing Applicat, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China

3.Beijing Normal Univ, Beijing 100101, Peoples R China

4.Univ New England, Sch Sci & Technol, Precis Agr Res Grp, Armidale, NSW 2351, Australia

5.Univ Lethbridge, Dept Phys & Astron, Lethbridge, AB T1K 3M4, Canada

6.Anhui Univ, Minist Educ, Key Lab Intelligent Comp & Signal Pro

关键词： winter wheat.;Bi-directional reflectance difference function;Chlorophyll concentration;Vertical distribution;Canopy chlorophyll inversion index;Internet resource.

期刊名称：PRECISION AGRICULTURE （ 影响因子：5.385； 五年影响因子：5.004 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： An effective technique to measure foliage chlorophyll concentration (Chl) at a large scale and within a short time could be a powerful tool to determine fertilization amount for crop management. The objective of this study was to investigate the inversion of foliage Chl vertical-layer distribution by bi-directional reflectance difference function (BRDF) data, so as to provide a theoretical basis for monitoring the growth and development of winter wheat and for providing guidance on the application of fertilizer. Remote sensing could provide a powerful tool for large-area estimation of Chl. Because of the vertical distribution of leaves in a wheat stem, Chl vertical distribution characteristics show an obvious decreasing trend from the top of the canopy to the ground surface. The ratio of transformed chlorophyll absorption reflectance index (TCARI) to optimized soil adjusted vegetation index (OSAVI) was called the canopy chlorophyll inversion index (CCII) in this study. The value of CCII at nadir, pl20 and pl30p, at nadir, pl30 and pl40p, and at nadir, pl50 and pl60p view angles were selected and assembled as bottom-layer Chl inversion index (BLCI), middle-layer Chl inversion index (MLCI), and upper-layer Chl inversion index (ULCI), respectively, for the inversion of Chl at the vertical bottom layer, middle layer, and upper layer. The root mean squared error (RMSE) between BLCI-, MLCI-, and ULCI-derived and laboratory-measured Chl were 0.7841, 0.9426, and 1.7398, respectively. The vertical foliage Chl inversion could be used to monitor the crop growth status and to guide fertilizer and irrigation management. The results suggested that vegetation indices derived from bi-directional reflectance spectra (e.g., BLCI, ULCI, and MLCI) were satisfactory for inversion of the Chl vertical distribution.

  • 相关文献

[1]Estimating Winter Wheat Nitrogen Vertical Distribution Based on Bidirectional Canopy Reflected Spectrum. Yang Shao-yuan,Huang Wen-jiang,Yang Shao-yuan,Liang Dong,Huang Lin-sheng,Zhang Dong-yan,Yang Shao-yuan,Liang Dong,Huang Lin-sheng,Zhang Dong-yan,Yang Gui-jun,Cai Shu-hong. 2015

[2]Co-suppression of the EIN2-homology gene LeEIN2 inhibits fruit ripening and reduces ethylene sensitivity in tomato. Hu, Z. L.,Deng, L.,Chen, X. Q.,Wang, P. Q.,Chen, G. P.,Chen, X. Q..

[3]The aggregation behavior of Harmonia axyridis in its native range in Northeast China. Michaud, J. P.,Wang, S.,Zhang, F.,Guo, X. J.,Tan, X. L..

[4]Silencing of the LeSGR1 gene in tomato inhibits chlorophyll degradation and exhibits a stay-green phenotype. Hu, Z. -L.,Deng, L.,Yan, B.,Pan, Y.,Luo, M.,Hu, T. -Z.,Chen, G. -P.,Chen, X. -Q..

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台