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Japanese Journal of Forest Planning最新文献

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Japanese Journal of Forest Planning Pub Date : 2023-07-03 DOI: 10.20659/jjfp.56.2_0
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引用次数: 0
Identification of coniferous tree species using deep learning 基于深度学习的针叶树树种识别
Japanese Journal of Forest Planning Pub Date : 2022-12-27 DOI: 10.20659/jjfp.56.1_13
Y. Minowa, S. Nakatsukasa
{"title":"Identification of coniferous tree species using deep learning","authors":"Y. Minowa, S. Nakatsukasa","doi":"10.20659/jjfp.56.1_13","DOIUrl":"https://doi.org/10.20659/jjfp.56.1_13","url":null,"abstract":"","PeriodicalId":234210,"journal":{"name":"Japanese Journal of Forest Planning","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130924597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
「2021年度森林計画学会春季シンポジウム」実施報告 “2021年度森林计划学会春季研讨会”实施报告
Japanese Journal of Forest Planning Pub Date : 2022-12-27 DOI: 10.20659/jjfp.56.1_25
Naoyuki Furuya, Koudai Yokoyama, Arisa Kato, Masayoshi Takahashi
{"title":"「2021年度森林計画学会春季シンポジウム」実施報告","authors":"Naoyuki Furuya, Koudai Yokoyama, Arisa Kato, Masayoshi Takahashi","doi":"10.20659/jjfp.56.1_25","DOIUrl":"https://doi.org/10.20659/jjfp.56.1_25","url":null,"abstract":"","PeriodicalId":234210,"journal":{"name":"Japanese Journal of Forest Planning","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133623743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
横浜市有道志水源林における事業展開と課題：1990年代以降の経営方針の転換に着目して 横滨市有道志水源林的事业展开与课题:着眼于1990年代以后的经营方针的转换
Japanese Journal of Forest Planning Pub Date : 2022-12-27 DOI: 10.20659/jjfp.56.1_1
H. Yamaguchi, K. Kohroki
{"title":"横浜市有道志水源林における事業展開と課題：1990年代以降の経営方針の転換に着目して","authors":"H. Yamaguchi, K. Kohroki","doi":"10.20659/jjfp.56.1_1","DOIUrl":"https://doi.org/10.20659/jjfp.56.1_1","url":null,"abstract":"","PeriodicalId":234210,"journal":{"name":"Japanese Journal of Forest Planning","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121785993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimal harvest age based on timber production profitability of Japanese cedar-planted forest: 基于杉木人工林木材生产盈利能力的最佳采伐年龄
Japanese Journal of Forest Planning Pub Date : 2022-03-20 DOI: 10.20659/jjfp.55.2_77
T. Nishizono, E. Kodani, H. Kanomata, Kazuo Hosoda, Keiko Fukumoto, Y. Yamada, T. Amano
{"title":"Optimal harvest age based on timber production profitability of Japanese cedar-planted forest:","authors":"T. Nishizono, E. Kodani, H. Kanomata, Kazuo Hosoda, Keiko Fukumoto, Y. Yamada, T. Amano","doi":"10.20659/jjfp.55.2_77","DOIUrl":"https://doi.org/10.20659/jjfp.55.2_77","url":null,"abstract":"","PeriodicalId":234210,"journal":{"name":"Japanese Journal of Forest Planning","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123531262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Report of “JSFP Summer Seminar 2021” “JSFP暑期研讨会2021”报告
Japanese Journal of Forest Planning Pub Date : 2022-03-20 DOI: 10.20659/jjfp.55.2_103
Y. Mitsuda, Masayoshi Takahashi
{"title":"Report of “JSFP Summer Seminar 2021”","authors":"Y. Mitsuda, Masayoshi Takahashi","doi":"10.20659/jjfp.55.2_103","DOIUrl":"https://doi.org/10.20659/jjfp.55.2_103","url":null,"abstract":"","PeriodicalId":234210,"journal":{"name":"Japanese Journal of Forest Planning","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126597052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis and Evaluation of Forest Space by GIS 基于GIS的森林空间分析与评价
Japanese Journal of Forest Planning Pub Date : 2022-03-20 DOI: 10.20659/jjfp.55.2_105
Kazuhiro Tanaka
{"title":"Analysis and Evaluation of Forest Space by GIS","authors":"Kazuhiro Tanaka","doi":"10.20659/jjfp.55.2_105","DOIUrl":"https://doi.org/10.20659/jjfp.55.2_105","url":null,"abstract":"","PeriodicalId":234210,"journal":{"name":"Japanese Journal of Forest Planning","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116476300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationship between sample size and classification accuracy for tree species identification based on leaf shape 基于叶片形状的树种识别样本大小与分类精度的关系
Japanese Journal of Forest Planning Pub Date : 2022-03-20 DOI: 10.20659/jjfp.55.2_61
Y. Minowa, Tsukumo Nakanishi
{"title":"Relationship between sample size and classification accuracy for tree species identification based on leaf shape","authors":"Y. Minowa, Tsukumo Nakanishi","doi":"10.20659/jjfp.55.2_61","DOIUrl":"https://doi.org/10.20659/jjfp.55.2_61","url":null,"abstract":"","PeriodicalId":234210,"journal":{"name":"Japanese Journal of Forest Planning","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114668938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Forest Civil Engineering 2nd Edition 森林土木工程第二版
Japanese Journal of Forest Planning Pub Date : 2022-03-20 DOI: 10.20659/jjfp.55.2_119
Keisuke Toyama
{"title":"Forest Civil Engineering 2nd Edition","authors":"Keisuke Toyama","doi":"10.20659/jjfp.55.2_119","DOIUrl":"https://doi.org/10.20659/jjfp.55.2_119","url":null,"abstract":"","PeriodicalId":234210,"journal":{"name":"Japanese Journal of Forest Planning","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126126158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accuracy Comparison of Conifer Classification Models Using UAV Images Acquired in Different Months 基于不同月份无人机影像的针叶树分类模型精度比较
Japanese Journal of Forest Planning Pub Date : 2021-08-20 DOI: 10.20659/jjfp.55.1_31
Mitsuki Fujihira, S. Deng, M. Katoh
{"title":"Accuracy Comparison of Conifer Classification Models Using UAV Images Acquired in Different Months","authors":"Mitsuki Fujihira, S. Deng, M. Katoh","doi":"10.20659/jjfp.55.1_31","DOIUrl":"https://doi.org/10.20659/jjfp.55.1_31","url":null,"abstract":"UAV(Unmanned Aerial Vehicle)は低コストで高 い空間分解能を得ることができるという利点から (Anderson and Gaston,2013)広域での森林資源把 握に有効であり,近年活用が増加している(村上, 2018)。単木レベルの樹種分類においてもUAVの活 用事例は多く,多様なアルゴリズムを用いた研究が行 われている(Fassnacht ら,2016)。例えば,Deng ら (2016)はUAVで取得したRGB画像と航空レーザ計 測データを用いて多様な機械学習アルゴリズムについ て樹種分類の精度を比較し,評価を行った。近年では, ディープラーニングの1種である畳み込みニューラル ネットワーク(Convolution Neural Network; CNN)や そこから派生したアルゴリズムを利用した分類が盛ん に行われている。Onishi and Ise(2018)はUAVで 得られたオルソモザイク画像や樹高傾斜モデルを使用 してGoogLeNet(Szegedy ら,2015)による樹種分 類を実施し,Nezami ら(2020)はUAVを用いて取 得したRGB画像とハイパースペクトル画像をもとに 3D-CNN(Ji ら,2013)を使って樹種分類を行った。 上記の先行研究では1時期に撮影されたデータのみ を使用しているが,植物体にはフェノロジーと呼ばれる 季節性の形態変化があり,これは樹種分類の精度に影響 を与える特性であることが知られている(Fassnacht ら,2016)。航空写真と衛星画像を用いた2つの研究 では,春季と秋季の2時期の画像を組み合わせること で分類精度の向上が期待できることが示されている (Hill ら,2010;Mickelson ら,1998)。また,Voss and Sugumaran(2008)は,ハイパースペクトル画像を 使用した樹種分類結果の比較により,夏季よりも秋季 のほうが安定した結果が得られることを示した。しか し,これらの研究では2時期あるいは3時期での比較 にとどまっており,分類に最適な時期を特定するため により短いインターバルでの精度比較が望まれる。 そこで本研究では,低コストかつ手軽に取得するこ とができるUAVによる RGB画像に着目し,5月か ら11月まで毎月1回の頻度でデータを取得することで 画像の撮影時期が分類精度に与える影響をより詳細に 明らかにすることを目的とした。また,2種類のアル ゴリズムを用いて樹種分類を行い結果を比較すること で,アルゴリズムによる精度推移の違いについても検 討した。","PeriodicalId":234210,"journal":{"name":"Japanese Journal of Forest Planning","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115166235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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