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[文献書誌] Tsunekawa A: "Monitoring of biological land productivity and evaluation of its sustainability"Proceedings of 1999 NIES Workshop on lnformation Bases and Modeling for Land-use and Land-cover Changes Studies in East Asia, Tsukuba, Japan. 222-226 (1999)
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[文献書誌] Anantha Ram K, Tsunekawa A, Saha DK, Miyazaki T: "Subdivision and fragmentation of land holdings and their implication in desertification in the Thar Desert, lndia"J Arid Environ. 41. 463-477 (1999)
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[文献書誌] 恒川篤史: "自然環境保全のための環境評価システムと意思決定"環境情報科学. 28(3). 24-29 (1999)
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[文献書誌] 安部和子、朱波、恒川篤史、武内和彦: "中国四川省の農村における土地被覆変化と生物資源利用"農村計画論文集. 1. 169-174 (1999)
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[文献書誌] Tachiiri K,Takeuchi K,Tsunekawa A.: "Space informatics for sustainable development.(Singh RB,Murai S editors)"The present status,potential and limits of simulation models of desertification. 255 (1998)