IODINE, BROMINE AND CHLORINE CONTENTS IN SOILS AND PLANTS OF JAPAN : III. Iodine, Bromine and Chlorine Contents in the Andosols and in Plants of Central Honshu

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概要

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• As a part of the studies on the determination of the average contents of iodine, bromine and chlorine in the soils and plants of Japan, the contents of the three elements, mainly in the forests of the Andosol region of Central Honshu were evaluated, and the results were as follows. 1. The average contents of iodine and bromine in the soils of grasslands, orchards and upland crop fields were about 10 times higher than those recorded in data from overseas, but the content of chlorine was similar to the average level reported (for horizon A of the forest soil, 46 ppm iodine, 123 ppm of bromine and 126 ppm of chlorine). The average contents of the three elements in these soils were slightly higher than those recorded in the forest soil of the basins of the Miomote and Nagara Rivers. 2. The average contents of the three elements in the leaves of all plants were similar to the average values reported previously outside of Japan, and to the values reported in the basins of the Miomote and Nagara Rivers (wild plants : 0.60 ppm of iodine, 12 ppm of bromine, 4,270 ppm of chlorine). 3. The contents of iodine and bromine in the forest soil, plants and rainwater were generally higher in coastal areas than in the inland areas. 4. In the Andosols of the forests, grasslands, orchards and upland fields of Central Honshu, iodine and bromine from soil became dissolved in association with the conversion of these lands to paddy fields. This condition may be damaging to the rice plants due to the excessive absorption of iodine ad the increase in the content of bromine residues in crops that exceed the permissible limits.

• 一般社団法人日本土壌肥料学会の論文
• 1983-12-00

著者

• Yuita Kouichi

  National Institute For Agro-environmental Sciences (niaes)

• Yuita Kouichi

  National Institute Of Agro-environmental Sciences

関連論文

• Determination of the As(III)/As(V) Ratio in Soil by X-ray Absorption Near-edge Structure (XANES) and Its Application to the Arsenic Distribution between Soil and Water
• Dynamics of Iodine, Bromine, and Chlorine in Soil : I. Effect of Moisture, Temperature, and pH on the Dissolution of the Triad from Soil
• IODINE, BROMINE AND CHLORINE CONTENTS IN SOILS AND PLANTS OF JAPAN : II. Iodine, Bromine and Chlorine Contents in Soils and Plants of the Basin of the Nagara River
• IODINE, BROMINE AND CHLORINE CONTENTS IN SOILS AND PLANTS OF JAPAN : I. Iodine, Bromine and Chlorine Contents in Soils and Plants of the Basin of the Miomote River
• IODINE, BROMINE AND CHLORINE CONTENTS IN SOILS AND PLANTS OF JAPAN : III. Iodine, Bromine and Chlorine Contents in the Andosols and in Plants of Central Honshu
• Dynamics of Iodine, Bromine, and Chlorine in Soil : II. Chemical Forms of Iodine in Soil Solutions

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