| Item type |
国際農研デフォルトアイテムタイプ（フル）(1) |
| 公開日 |
2024-07-18 |
| タイトル |
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タイトル |
Toward efficient farm management with remote sensing technologies in lowland rice fields in Laos |
|
言語 |
en |
| 作成者 |
Kawamura, Kensuke
Ikeura, Hiroshi
Matsumoto, Naruo
Asai, Hidetoshi
Phongchanmixay, Sengthong
Khanthavong, Phanthasin
Souvannasing, Soukasdachanh
Inthavong, Thavone
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| アクセス権 |
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|
アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 内容記述 |
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内容記述タイプ |
Other |
|
内容記述 |
This paper reports our current activities in Laos for monitoring rice production with remote sensing technologies in lowland field toward efficient farm management at small farm scale (<1 km2) or local scale (village, <100 km2). At farm scale (Research 1), the grain yield of lowland rice was evaluated from field hyperspectral data of paddy fields during the reproductive stage to the ripening stage in conjunction with iterative stepwise elimination partial least squares (ISE-PLS) regression. At local scale (Research 2), we established a land infrastructure data set in a lowland rice field at Koudkher village combining with UAV images and geographic information system (GIS) in order to assess the potential yield and its environmental effects. In Research 1, the highest R2 values and the lowest root mean squared error of cross-validation (RMSECV) values were obtained from the ISEPLS model at the booting stage (R2 = 0.873, RMSECV = 22.903); the residual predictive deviation was >2.4. Selected hyperspectral (HS) wavebands in the ISE-PLS model were identified in the rededge (710–740 nm) and near-infrared (830 nm) regions. These results confirmed that the booting stage might be the best time for in-season rice grain assessment and that rice yield could be evaluated accurately from the HS sensing data via the ISE-PLS model. In Research 2, a GIS-based land infrastructure information dataset was established in rain-fed paddy field (Koudkher village) from UAV images and digital terrain model. Using the data set, Ikeura et al. (2019) assessed the relationship between rice yield and water/soil conditions in the rainfed rice fields in Koudkher village. |
|
言語 |
en |
| 出版者 |
|
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出版者 |
Japan International Research Center for Agricultural Sciences |
| 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_3248 |
|
資源タイプ |
book part |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| ID登録 |
|
|
ID登録 |
10.34556/0002000388 |
|
ID登録タイプ |
JaLC |
| 関連情報 |
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|
関連タイプ |
isPartOf |
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.34556/0002000382 |
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関連名称 |
Potential and Efficiency of Underused Agricultural and Fishery Resources in Laos |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
|
収録物識別子 |
1341-710X |
| 収録物識別子 |
|
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11159468 |
| 書誌情報 |
en : JIRCAS Working Report : Potential and Efficiency of Underused Agricultural and Fishery Resources in Laos
巻 90,
p. 15-22,
発行日 2020-03-19
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| 位置情報 |
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|
位置情報（自由記述） |
Laos |
|
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位置情報（自由記述） |
ラオス |
| 助成情報 |
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識別子タイプ |
Crossref Funder |
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助成機関識別子 |
https://doi.org/10.13039/501100009472 |
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助成機関名 |
Japan International Research Center for Agricultural Sciences(en) |
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研究課題番号URI |
https://www.jircas.go.jp/en/program/program_c/c1 |
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研究課題番号 |
C1 |
|
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研究課題名 |
Formation of food value chain through value addition of food resources to support sustainable rural development [Value-adding technology : Food value chain](en) |
jircas_working_report90-_15-22 (2.3MB)
