Sustainable use and agricultural production in watershed ecosystems in Tropical Asia (Indonesia)

2008 Fiscal Year Final Research Report

• Project/Area Number: 18405043
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Boundary agriculture
• Research Institution: Shimane University
• Principal Investigator: MASUNAGA Tsugiyuki Shimane University, 生物資源科学部, 教授 (10325045)
• Co-Investigator(Renkei-kenkyūsha): TAKEDA Ikurou 島根大学, 生物資源科学部, 教授 (60227022) ; MATSUMOTO Shingo 島根大学, 生物資源科学部, 准教授 (00346371) ; SOMURA Hiroaki 島根大学, 生物資源科学部, 助教 (90403443)
• Research Collaborator: HUSNAIN, インドネシアボゴール土壌研究所, 研究員 ; DARMAWAN, インドネシア アンダラス大学, 農学部, 講師 ; CHEN XIN, 中国 浙江大学, 部, 博士研究員
• Project Period (FY): 2006 – 2008
• Keywords: インドネシア / 持続的農業 / 緑の革命 / 水田土壌 / 集水域 / 土地利用 / 土壌侵食

Research Abstract

インドネシアにおいて、過去30年間行われてきた近代的農法による集約的稲作は、水田土壌中の炭素や窒素および施肥由来の窒素・リンなどの増加をもたらし、逆に可給態ケイ酸の減少をもたらした。また、集水域内の土地利用管理形態の違いは土壌および河川・灌漑水質に影響を及ぼし、上流域での土地利用の変化が下流域の農業生産に影響を及ぼしていることを示した。例えばケイ酸については、環境水中への窒素・リンの負荷がケイ藻などの繁茂による環境水からのケイ酸の消費を促進し、下流域の水田へのケイ酸の供給を減少させていた。

Research Products

• [Journal Article] Silica availability in soils and river water in two watersheds in Java Island、 Indonesia (2008)
  • Author(s): Husnain、 Hermansah、 Wakatsuki T.、 Setyorini D.、 Hermansah、 Sato K. and Masunaga T.
  • Journal Title: Soil Sci. Plant Nutrition 54(6) Pages: 916-927
  • Peer Reviewed
• [Journal Article] Effect of Structural Difference on Wastewater Treatment Efficiency in Multi-soil-layering Systems: Relationship between Soil Mixture Block Size and Removal Efficiency of Selected Contaminants. (2007)
  • Author(s): Chen X.,, Sato K., Wakatsuki T.and Masunaga T.
  • Journal Title: Soil Science and Plant Nutrition 53(2) Pages: 206-214
  • Peer Reviewed
• [Journal Article] Effect of green revolution technology from 1970 to 2003 on sawah soil properties in Java, Indonesia: I. Carbon and nitrogen distribution under different land management and soil types. (2006)
  • Author(s): Darmawan, Kyuma K., Saleh A., Subagjo H., Masunaga T. and Wakatsuki T.
  • Journal Title: Soil Science and Plant Nutrition 52(5) Pages: 634-644
  • Peer Reviewed
• [Journal Article] Effect of green revolution technology from 1970 to 2003 on sawah soil properties in Java, Indonesia: II. Changes in the chemical properties of soils. (2006)
  • Author(s): Darmawan, Kyuma K., Saleh A., Subagjo H., Masunaga T. and Wakatsuki T. Darmawan, Kyuma K., Saleh A., Subagjo H., Masunaga T. and Wakatsuki T.
  • Journal Title: Soil Science and Plant Nutrition 52(6) Pages: 645-653
  • Peer Reviewed
• [Journal Article] Effects of long-term intensive rice cultivation on the available silica content of sawah soils; the case of Java Island, Indonesia. (2006)
  • Author(s): Darmawan, Kyuma K., Saleh A., Subagjo H., Masunaga T. and Wakatsuki T
  • Journal Title: Soil Science and Plant Nutrition 52(6) Pages: 745-753
  • Peer Reviewed
• [Presentation] River Si trappment in dams and its influence on Si supply to lowland sawah in Citarum watershed, Java, Indonesia (2008)
  • Author(s): Husnain, Sato K., Wakatsuki T., Masunaga T.
  • Organizer: 第104回日本土壌肥料学会関西支部講演会
  • Place of Presentation: 徳島市
  • Year and Date: 2008-11-28
• [Presentation] A recommendation of land use pattern to reduce soil erosion in a main rice producing watershed in West Sumatra, Indonesia (2008)
  • Author(s): Aflizar, Husnain, Hermansah, Darmawan, Wakatsuki T., Masunaga T.
  • Organizer: 第104回日本土壌肥料学会関西支部講演会
  • Place of Presentation: 徳島市
  • Year and Date: 2008-11-28
• [Presentation] Characteristics of heavy metal in sawah soils in Sumani watershed, Sumatra, Indonesia (2008)
  • Author(s): Indra R・Aflizar・Husnain・Masunaga T.
  • Organizer: 第104回日本土壌肥料学会関西支部講演会
  • Place of Presentation: 徳島市
  • Year and Date: 2008-11-28
• [Presentation] Straw Management and Silica Deficiency in Java Island, Indonesia (2008)
  • Author(s): Husnain・N.Hidayat・Hermansah・Darmawan・S. Kuniaki・T. Wakatsuki・T. Masunaga
  • Organizer: 第54回日本土壌肥料学会
  • Place of Presentation: 名古屋市
  • Year and Date: 2008-09-11
• [Presentation] Characterization of soil erosion factors in Sumani watershed, West Sumatra, Indonesia (2008)
  • Author(s): Aflizar, A. Saidi, B. Istijono, Jamaluddin, Husnain, Hermansah, Darmawan, T. Wakatsuki, T. Masunaga
  • Organizer: 第54回日本土壌肥料学会
  • Place of Presentation: 名古屋市
  • Year and Date: 2008-09-11
• [Presentation] General soil fertility and heavy metal accumulation in the rice field (Sawah) in Sumani watershed, West Sumatra, Indonesia (2008)
  • Author(s): Rudy Indra, Aflizar, Husnain, Darmawan, ,Hermansah, T. Wakatsuki, T. Masunaga
  • Organizer: 第54回日本土壌肥料学会
  • Place of Presentation: 名古屋市
  • Year and Date: 2008-09-11
• [Presentation] インドネシア西ジャワCitarum集水域における低地水田への養分移動と水田土壌特性の関係 (2008)
  • Author(s): 増永二之・Husnain・Darmawan・Hermansah・若月利之
  • Organizer: 第54回日本土壌肥料学会
  • Place of Presentation: 名古屋市
  • Year and Date: 2008-09-09
• [Presentation] Characteristics of nutrient availability and their dynamics in relation to sustainable agriculture in Citarum and Kaligarang watersheds, Indonesia (2007)
  • Author(s): Husnain, Isa A.F., Wakatsuki T., Masunaga T.
  • Organizer: 8^<th> Conference of the East and Southeast Asian Federation of Soil Science
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 20071022-23
• [Presentation] Multifunctionality of Sawah based intensive rice farming in Java, Indonesia, in special reference to carbon sequestration. (2007)
  • Author(s): Darmawan, Masunaga T., Wakatsuki T., Kyuma K.
  • Organizer: 8^<th> Conference of the East and Southeast Asian Federation of Soil Science
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 20071022-23
• [Presentation] Soil chemical properties changes as effect of toposequences and quality of irrigation、 water in the rice field (sawah) in Sumani watershed, West Sumatra, Indonesia. (2007)
  • Author(s): Indra R., Husnain, Hermansyah, A. Saidi, T. Masunaga
  • Organizer: 第103回日本土壌肥料学会関西支部講演会
  • Place of Presentation: 東広島市
  • Year and Date: 2007-12-07
• [Presentation] Characteristics of soil and water qualities under several landuse types and toposequences in Citarum and Kiligarang. (2007)
  • Author(s): Husnain, Ahmad Fauzi Isa、Hermansah、T. Wakatsuki, T. Masunaga
  • Organizer: 第53回日本土壌肥料学会
  • Place of Presentation: 世田谷区
  • Year and Date: 2007-08-24
• [Presentation] Silica dynamics in several land use types along toposequence in Citarum and Kaligarang watersheds, Indonesia. (2006)
  • Author(s): Husnain, T. Wakatsuki, T. Masunaga
  • Organizer: 第52回日本土壌肥料学会
  • Place of Presentation: 秋田市
  • Year and Date: 2006-09-08
• [Presentation] The Effects of Long-Term Intensive Rice Cultivation on the Available Silica Content of Sawah Soils (2006)
  • Author(s): Darmawan, K. Kyuma, Arsil Saleh, H. Subagjo, T. Wakatsuki, T. Masunaga
  • Organizer: 第52回日本土壌肥料学会
  • Place of Presentation: 秋田市
  • Year and Date: 2006-09-07