Management of Water Conservation Forest by the Kadumaanazeki Land Improvement District : Focusing on the Postwar Period.

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  • IZUMI Keiko
    Forestry and Forest Products Research Institute, Tohoku Research Center:JSPS:(Present Office)Tsuru University
  • FURUIDO Hiromichi
    Graduate School of Agricultural and Life Sciences, The University of Tokyo

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Other Title
  • 鹿妻穴堰土地改良区における水源林の経営展開 : 戦後期を対象として
  • カズマアナゼキ トチ カイリョウク ニ オケル スイゲンリン ノ ケイエイ テンカイ センゴキ オ タイショウ ト シテ

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Abstract

This paper discusses Kaduma-anazeki land improvement district forest, a 233-ha forest in Iwate prefecture, and describes how the forest was managed and how forest management plans were developed. Kaduma-anazeki land improvement district has been managed as a forest primarily for the conservation of water resources since 1927. This paper analyzed forest management in Kaduma-anazeki land improvement district forest in the postwar period (from 1946 to 2005). The study focused especially on three points: 1) the relationship between the general account of Kaduma-anazeki land improvement district and its special forest account, 2) how the forest was organized in forest management plans (FMPs), and 3) how the management plans were implemented. This paper divided management development of the forest into four periods. In the first period (from 1946 to 1956) and the second period (from 1957 to 1981) the revenue from harvesting natural forest was a significant source of income for the general account. In the third period (from 1982 to 1994) the special account fell into deficit. For that reason, planting and tending area in the plantation forest was decreased. In the fourth period (from 1995 to 2005) the land improvement district invested several million yen in the forest from its general account despite the special account deficit. Stakeholders decided this was in the interest of long-term forest investment and their social responsibility.

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