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        <datestamp>2025-11-06T07:25:41Z</datestamp>
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          <dc:title xml:lang="ja">森林総合研究所構内における1989年～2004年の大気CO2濃度の観測</dc:title>
          <dc:title xml:lang="en">Observation of ambient air CO2 concentration at the campus of FFPRI, Tsukuba, Japan from 1989 to 2004</dc:title>
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            <jpcoar:creatorName xml:lang="en">MATSUMOTO, Yoosuke</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">松本, 陽介</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">UEMURA, Akira</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">上村, 章</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">YAZAKI, Kenichi</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">矢崎, 健一</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">HARAYAMA, Hisanori</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">原山, 尚徳</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">KOIKE, Nobuya</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">小池, 信哉</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">ISHIDA, Atsushi</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">石田, 厚</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">MARUYAMA, Yutaka</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">丸山, 温</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">KAWARASAKI, Satoko</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">河原崎, 里子</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">TANAKA, Kenzo</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">田中, 憲蔵</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">YONEDA, Reiji</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja">米田, 令仁</jpcoar:creatorName>
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          <dc:rights xml:lang="en">© 2006 Forestry and Forest Products Research Institute</dc:rights>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">CO2 monitoring</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">observation system</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">long-term fluctuation</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">elnino</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">Kanto Plain</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">Japan</jpcoar:subject>
          <jpcoar:subject xml:lang="ja" subjectScheme="Other">大気CO2濃度観測</jpcoar:subject>
          <jpcoar:subject xml:lang="ja" subjectScheme="Other">観測システム</jpcoar:subject>
          <jpcoar:subject xml:lang="ja" subjectScheme="Other">バックグラウンド濃度変動</jpcoar:subject>
          <jpcoar:subject xml:lang="ja" subjectScheme="Other">エルニーニョ</jpcoar:subject>
          <jpcoar:subject xml:lang="ja" subjectScheme="Other">関東平野</jpcoar:subject>
          <datacite:date dateType="Issued">2006-06</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_6501">departmental bulletin paper</dc:type>
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          <jpcoar:sourceIdentifier identifierType="PISSN">0916-4405</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle xml:lang="ja">森林総合研究所研究報告</jpcoar:sourceTitle>
          <jpcoar:sourceTitle xml:lang="en">Bulletin of the Forestry and Forest Products Research Institute</jpcoar:sourceTitle>
          <jpcoar:volume>5</jpcoar:volume>
          <jpcoar:issue>2</jpcoar:issue>
          <jpcoar:pageStart>183</jpcoar:pageStart>
          <jpcoar:pageEnd>198</jpcoar:pageEnd>
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