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Clarification of land degradation phenomena and establishment of sustainable land use system in East Asia

Research Project

Project/Area Number 09660019
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 園芸・造園学
Research InstitutionThe University of Tokyo

Principal Investigator

TSUNEKAWA Atsushi  Graduate School of Agricultural and Life Sciences, Associate Professor, 大学院・農学生命科学研究科, 助教授 (60227452)

Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1999: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordsland classification / environmental characteristics / land degradation / Asia / land use / cover changes / sustainability / deforestation / afforestation / 中国 / 物質循環 / 環境指標 / 評価モデル / 都市環境 / 上下水道 / 公害環境 / ライフスタイル / 経済指標 / 環境負荷 / 居住環境 / 耕作強度
Research Abstract

1° x 1° grid cells in the Asia region were classified using the datasets of vegetation, elevation, soil type, mean annual temperature and annual precipitation. Correspondence analysis was used for plotting the samples on three-dimensional space, followed by the cluster analysis for classifying all samples into ten categories. As a result, those ten land types in Asia could be mapped and the relationship between the land types and natural conditions such as vegetation, elevation, soil, mean annual temperature and annual precipitation were grasped. The result of correspondence analysis indicates that temperature and precipitation are the most important factors causing remarkable spatial structures, that is, the concentric circle centering Tibetian Highlands and South to North change from tropics to subpolar. This land classification is verified by using χ Square test to highly correspond to cultivation intensity and distribution of soil degradation.
Then taking a small catchment in Sichuan Province, China that had been exposed to massive deforestation and reafforestation as a case study of land degradation, further study was made. Land cover changes during the past 50 years and actual status of bio-resources utilization were analyzed to evaluate the agricultural sustainability in a small catchment area in Sichuan Province, Southern China. This study clarified massive deforestation in the 1950's was for fuel wood supply in this area. Afforestaion in the 1970's restored the forest resources quantitatively, which means the forest cover ratio became twice as large as the average in Sichuan Province. The analysis of bio-resources utilization suggested that the nitrogen input mainly consisting of chemical fertilizer remarkably exceeds the nitrogen output in the study area.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] Tsunekawa A., Kar A., Yanai J., Tanaka U., Miyazaki T.: "Influence of continuous cultivation on the soil properties affecting crop productivity in the Thar desert, India"J Arid Environ. 36. 367-384 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 立入 郁、恒川篤史、武内和彦: "環境特性に基づくアジア地域の土地分類と耕作強度・土壌荒廃パターンとの関連性"環境情報科学論文集. 11. 69-74 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tsunekawa A.: "Monitoring of biological land productivity and evaluation of its sustainability"Proceedings of 1999 NIES Workshop on Information Bases and Modeling for Land-use and Land-cover Changes Studies in East Asia, Tsukuba, Japan. 222-226 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Anantha Ram K., Tsunekawa A., Saha DK, Miyazaki T.: "Subdivision and fragmentation of land holdings and their implication in desertification in the Thar Desert, India"J Arid Environ. 41. 463-477 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 恒川篤史: "自然環境保全のための環境評価システムと意志決定"環境情報科学. 28(3). 24-29 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 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)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 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)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 恒川篤史、武内和彦、立入 郁: "生物資源の持続的利用(武内和彦・田中 学編)"土地荒廃と生物資源の持続的利用. 284 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tsunekawa A, Kar A, Yanai J, Tanaka U, Miyazaki T.: "Influence of continuous cultivation on the soil properties affecting crop productivity in the Thar desert India."J Arid Environ. 36. 367-384 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tachiiri K, Tsunekawa A, Takeuchi K.: "Numerical land classification of Asia region using environmental characteristics and its relationship with cultivation intensity and soil degradation patterns."Papers on Environmental Information Science. 11(in Japanese with English abstract). 69-74 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Anantha Ram K, Tsunekawa A, Saha DK, Miyazaki T.: "Subdivision and fragmentation of land holdings and their implication in desertification in the Thar Desert, India."J Arid Environ. 41. 463-477 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tsunekawa A.: "Environmental assessment systems for natural environment conservation and decision-making."Environmental Information Science. 28(3) (in Japanese and English abstract). 24-29 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Abe K, Zhu B, Tsunekawa A, Takeuchi K.: "Land cover changes and bio-resources utilization in a rural village in Sichuan Province, China."Transactions of Rural Planning. 1 (in Japanese with English abstract). 169-174 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tsunekawa A.: "Monitoring of biological land productivity and evaluation of its sustainability. In : Otsubo K editor. Proceedings of 1999 NIES Workshop on Information Bases and Modeling for Land-use and Land-cover Changes Studies in East Asia, Tsukuba, Japan, January"Tsukuba : Center for Global Environmental Research. Report ; CGER-I036-'99. 222-226(293) (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tachiiri K, Takeuchi K, Tsunekawa A.: "1998 : The present status, potential and limits of simulation models of desertification. In : Singh RB, Murai S. editors. Space informatics for sustainable development."New Delhi : Oxford & IBH 177-184. 255 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Tsunekawa A, Takeuchi K, Tachiiri K.: "Land degradation and sustainable use of biological resources. In : Sustainable Use of Biological Resources (edited by Takeuchi K & Tanaka M)"Tokyo : Iwanami (in Japanese). 59-95

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 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)

    • Related Report
      1999 Annual Research Report
  • [Publications] 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)

    • Related Report
      1999 Annual Research Report
  • [Publications] 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)

    • Related Report
      1999 Annual Research Report
  • [Publications] 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)

    • Related Report
      1999 Annual Research Report
  • [Publications] 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)

    • Related Report
      1999 Annual Research Report
  • [Publications] 恒川篤史: "環境 地球環境と巨大都市 2.環境指標による世界都市環境の比較" 岩波書店, 290 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 立入 郁: "環境特性に基づくアジア地域の土地分類と耕作強度・土壌荒廃パターンとの関連性" 環境情報科学論文集. 11. 69-74 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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