| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Mapping herbage biomass and nitrogen status in an Italian ryegrass (Lolium multiflorum L.) field using a digital video camera with balloon system |
|
言語 |
en |
| 作成者 |
Kawamura, Kensuke
Sakuno, Yuji
Tanaka, Yoshikazu
Lee, Hyo-Jin
Lim, Jihyun
Kurokawa, Yuzo
Watanabe, Nariyasu
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
balloon |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
digital video camera |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
herbage biomass |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
nitrogen status |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
spatial distribution |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
precision agriculture |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
500 |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
610 |
| 内容記述 |
|
|
内容記述 |
Improving current precision nutrient management requires practical tools to aid the collection of site specific data. Recent technological developments in commercial digital video cameras and the miniaturization of systems on board low-altitude platforms offer cost effective, real time applications for efficient nutrient management. We tested the potential use of commercial digital video camera imagery acquired by a balloon system for mapping herbage biomass (BM), nitrogen (N) concentration, and herbage mass of N (N(mass)) in an Italian ryegrass (Lolium multiflorum L.) meadow. The field measurements were made at the Setouchi Field Science Center, Hiroshima University, Japan on June 5 and 6, 2009. The field consists of two 1.0 ha Italian ryegrass meadows, which are located in an east-facing slope area (230 to 240 m above sea level). Plant samples were obtained at 20 sites in the field. A captive balloon was used for obtaining digital video data from a height of approximately 50 m (approximately 15 cm spatial resolution). We tested several statistical methods, including simple and multivariate regressions, using forage parameters (BM, N, and N(mass)) and three visible color bands or color indices based on ratio vegetation index and normalized difference vegetation index. Of the various investigations, a multiple linear regression (MLR) model showed the best cross validated coefficients of determination (R(2)) and minimum root-mean-squared error (RMSECV) values between observed and predicted herbage BM (R(2) = 0.56, RMSECV = 51.54), N(mass) (R(2) = 0.65, RMSECV = 0.93), and N concentration (R(2) = 0.33, RMSECV = 0.24). Applying these MLR models on mosaic images, the spatial distributions of the herbage BM and N status within the Italian ryegrass field were successfully displayed at a high resolution. Such finescale maps showed higher values of BM and N status at the bottom area of the slope, with lower values at the top of the slope. C (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Society of Photo-optical Instrumentation Engineers |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
|
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1117/1.3659893 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1117/1.3659893 |
| 収録物識別子 |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1931-3195 |
| 開始ページ |
|
|
開始ページ |
053562 |
| 書誌情報 |
Journal of Applied Remote Sensing
Journal of Applied Remote Sensing
巻 5,
p. 053562,
発行日 2011
|
| 旧ID |
34777 |
JApplRemoteSens_5_053562.pdf (1.3 MB)
