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Classification of the size distribution of soil aggregates in arid and semi-arid regions in East Asia
http://hdl.handle.net/2261/35825
http://hdl.handle.net/2261/358255565a429-8819-45b1-bcb1-0a1e153f52d3
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
J_env_inf_32_5_63.pdf (869.3 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-05-18 | |||||
| タイトル | ||||||
| タイトル | Classification of the size distribution of soil aggregates in arid and semi-arid regions in East Asia | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | drysieving | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | clusteranalysis | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Winderosion | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | China | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Mongol | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 著者 |
Okayasu, T.
× Okayasu, T.× Takeuchi, K. |
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| 著者所属 | ||||||
| 著者所属 | Graduate School of Agricultural and Life Sciences, The University of Tokyo | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Broad-scale evaluation of wind erosion requires details of the spatial distribution of the primary factors controlling wind erosion, such as soil characteristics, vegetation cover and soil water conditions. Soil aggregates are one of the factors, and their size distributions have usually been mapped by assuming a one-to-one relationship with soil texture class. We dry-sieved 31 soil samples from arid and semi-arid regions in East Asia. Cluster analysis showed that the size distribution of aggregates varied even within a single soil texture class, mainly because of the difference in soil types, indicating that the above assumption does not hold in this region. Azonal aeolian sediments have typical well-sorted forms of size distributions, but zonal steppe soils show various patterns of size distribution. Parent material can be a good indicator to use to classify the size distributions of aggregates in steppe soils, loess materials and soils formed on newer (Quaternary and Cretaceous) igneous rock (finer soils), on sedimentary materials (coarser soils), and on ancient geological layers (complex, coarse particle size composition). Soil maps and geological maps of this region are readily available, so the mapping of soil aggregates in relation to these thematic maps should be efficient and practical. | |||||
| 書誌情報 |
Journal of environmental information science 巻 32, 号 5, p. 63-70, 発行日 2004 |
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| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA1205130X | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 610 | |||||
| 出版者 | ||||||
| 出版者 | 社団法人環境情報科学センター | |||||
