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島根大学農学部研究報告 1 巻
1967-12 発行
銅害地土壌に関する研究(第1報) : 銅鉱山付近の土壌並びに河川水の銅含有量について
The Studies on the Copper-Poisoned Soils(Part 1) : On the Copper Contents of the Soils and Water of the Rivers near the Copper Mine
小柴 尚博
佐野 豊
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内容記述
The copper contents of the various soils, namely paddyland soils, pathway soils between them, waste land soils and the slag, and water of the rivers near the copper mine of the Mt. Homan, locating at Higashi-Izumo Town in Shimane prefecture, were studied in connection with the occurence of the paddy rice injury. The results were as follows :
1 ). The available copper contents of the paddyland soils and the pathway soils between them were 356.4---1460.0 ppm and were higher than other soils. It was estimated that those soils contained the available copper sufficient for the occurence of the paddy rice injury.
2 ). As to the paddyland soils, the available copper contents of the injuried soils did not differ from those of the non-injuried ones.
3 ). The total copper contents of the paddyland soils and the pathway soils between them were 817.4---2841.7 ppm and were higher than other soils without the slag.
4 ). The copper content of water in the entrance of the tunnel was 2.080 ppm. That of the Uchima River was 2.060 ppm in the upper stream and 1.320 ppm in the downstream. That of the confluenced place of the Suda and Uchima River was 0.860 ppm.
1 ). The available copper contents of the paddyland soils and the pathway soils between them were 356.4---1460.0 ppm and were higher than other soils. It was estimated that those soils contained the available copper sufficient for the occurence of the paddy rice injury.
2 ). As to the paddyland soils, the available copper contents of the injuried soils did not differ from those of the non-injuried ones.
3 ). The total copper contents of the paddyland soils and the pathway soils between them were 817.4---2841.7 ppm and were higher than other soils without the slag.
4 ). The copper content of water in the entrance of the tunnel was 2.080 ppm. That of the Uchima River was 2.060 ppm in the upper stream and 1.320 ppm in the downstream. That of the confluenced place of the Suda and Uchima River was 0.860 ppm.
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