微生物的観点からみた酸性硫酸塩土壌の研究史

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タイトル別名
  • Studies on Acid Sulfate Soils from a Biological Perspective
  • ビセイブツテキ カンテン カラ ミタ サンセイ リュウサンエン ドジョウ ノ ケンキュウシ

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説明

Acid sulfate soils are one of the problem soils worldwide, and are found mainly in the tropical mangrove forests and mangrove swamps of Southeast Asia and Africa. Together, these areas account for about 12 million hectares of acid sulfate soils. But there is a shortage of arable lands in these areas, hence, acid sulfate soils are studied for agricultural purposes. While many studies have already made clear the mechanism of soil acidification, it is still unclear how bacterial actions are influenced by soil physical conditions. Additionally, clarifying the mechanism of changes in iron formation, leading to the development of acid sulfate soils may contribute to the understanding of the phenomenon. Studies on changes in iron formation in paddy soils, for example, could become an interesting research area in soil physics. This research area requires interdisciplinary collaboration and has good possibilities of advancing. Likewise, other bacterial studies in croplands will greatly supplement studies in acid sulfate soils. In this paper, a number of studies on acid sulfate soils conducted in Japan and other countries are introduced and possible research areas in the future are identified.

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