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Effect of Grassland Development Methods on Soil Structure in the Coral Island (Kuro-shima) of Okinawa, Japan
http://hdl.handle.net/10458/5281
http://hdl.handle.net/10458/5281fc04064e-a450-4500-b3c0-b801d8442577
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
hosokawa2013.pdf (1.5 MB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-06-21 | |||||
| タイトル | ||||||
| タイトル | Effect of Grassland Development Methods on Soil Structure in the Coral Island (Kuro-shima) of Okinawa, Japan | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | coral island, grassland development, grass-root distribution, soil structure, stone crusher | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
| 資源タイプ | conference paper | |||||
| 著者 |
細川, 吉晴
× 細川, 吉晴 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In some coral islands of Okinawa, Japan, the beef cattle production had been carried out for a long time while grazing in native pasture and in developed pasture traditionally. The pasture in Kuro-shima, being very flat, was divided with coral stone walls because of stony due to coral island. The grassland productivity was low and the beef cattle production was continued with little progress. A large scale of the grassland development in Okinawa was started from 1984. As the first method for grassland development, the equipment of “stabilizer", improved a road stabilizer for digging coral bedrock deeper, was used. In the second method, they used the equipment of “stone crusher" improved to make coral stones smaller after the stabilizer's work. The distribution of sieving stone and the grass roots were compared with two methods. As the result, the weight content of stone under 30 mm size was 84% of the first method and 86% of the second one, and the stone in top layer (0~10 cm depth) was smaller by the second one. The percentage of grass roots of the second one was a lot in the deeper soil layer than of the first one. Thus the method using stabilizer and stone crusher was effective for the coral grassland. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : Proceedings of 2013 Conference of Australia Society for Engineering in Agriculture 巻 26, p. 1-8, 発行日 2013-09 |
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| 出版者 | ||||||
| 出版者 | Engineers Australia | |||||
| 言語 | en | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
