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Comprehensive assessment of soil erosion risk for better land use planning in river basins: Case study of the Upper Blue Nile River
https://repository.lib.tottori-u.ac.jp/records/7368
https://repository.lib.tottori-u.ac.jp/records/7368dbee84c8-3087-4d8c-b113-5ed6f52f3f08
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ste574_95.pdf (2.6 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
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| 公開日 | 2021-07-28 | |||||||||
| タイトル | ||||||||||
| タイトル | Comprehensive assessment of soil erosion risk for better land use planning in river basins: Case study of the Upper Blue Nile River | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| キーワード | ||||||||||
| 主題 | Drought-prone | |||||||||
| キーワード | ||||||||||
| 主題 | Grand Ethiopian renaissance dam | |||||||||
| キーワード | ||||||||||
| 主題 | Gross soil loss | |||||||||
| キーワード | ||||||||||
| 主題 | Gully erosion | |||||||||
| キーワード | ||||||||||
| 主題 | Soil and water conservation | |||||||||
| キーワード | ||||||||||
| 主題 | Sediment yield | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題 | Drought-prone | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題 | Grand Ethiopian renaissance dam | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題 | Gross soil loss | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題 | Gully erosion | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題 | Soil and water conservation | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題 | Sediment yield | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ | journal article | |||||||||
| 著者 |
Ayehu, Nigussie Haregeweyn
× Ayehu, Nigussie Haregeweyn
WEKO
4623
× 恒川, 篤史× 坪, 充× Poesen, Jean× Meshesha, Derege Tsegaye× Fenta, Ayele Almaw× Nyssen, Jan× Adgo, Enyew |
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| 著者所属（英） | ||||||||||
| 言語 | en | |||||||||
| 値 | International Platform for Dryland Research and Education, Tottori University / Arid Land Research Center, Tottori University | |||||||||
| 著者所属（英） | ||||||||||
| 言語 | en | |||||||||
| 値 | International Platform for Dryland Research and Education, Tottori University / Arid Land Research Center, Tottori University | |||||||||
| 著者所属（英） | ||||||||||
| 言語 | en | |||||||||
| 値 | Department of Earth and Environmental Sciences, Division of Geography and Tourism | |||||||||
| 著者所属（英） | ||||||||||
| 言語 | en | |||||||||
| 値 | Institute for Soil, Climate and Water, Agricultural Research Council, South Africa | |||||||||
| 著者所属（英） | ||||||||||
| 言語 | en | |||||||||
| 値 | Department of Natural Resources Management, Bahir Dar University | |||||||||
| 著者所属（英） | ||||||||||
| 言語 | en | |||||||||
| 値 | Department of Land Resources Management and Environmental Protection, Mekelle University | |||||||||
| 著者所属（英） | ||||||||||
| 言語 | en | |||||||||
| 値 | Geography Department, Gent University | |||||||||
| 著者所属（英） | ||||||||||
| 言語 | en | |||||||||
| 値 | Department of Natural Resources Management, Bahir Dar University | |||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | In the drought-prone Upper Blue Nile River (UBNR) basin of Ethiopia, soil erosion by water results in significant consequences that also affect downstream countries. However, there have been limited comprehensive studies of this and other basins with diverse agroecologies. We analyzed the variability of gross soil loss and sediment yield rates under present and expected future conditions using a newly devised methodological framework. The results showed that the basin generates an average soil loss rate of 27.5 t ha− 1 yr− 1 and a gross soil loss of ca. 473 Mt yr− 1, of which, at least 10% comes from gully erosion and 26.7% leaves Ethiopia. In a factor analysis, variation in agroecology (average factor score = 1.32) and slope (1.28) were the two factors most responsible for this high spatial variability. About 39% of the basin area is experiencing severe to very severe (> 30 t ha− 1 yr− 1) soil erosion risk, which is strongly linked to population density. Severe or very severe soil erosion affects the largest proportion of land in three subbasins of the UBNR basin: Blue Nile 4 (53.9%), Blue Nile 3 (45.1%), and Jema Shet (42.5%). If appropriate soil and water conservation practices targeted ca. 77.3% of the area with moderate to severe erosion (> 15 t ha− 1 yr− 1), the total soil loss from the basin could be reduced by ca. 52%. Our methodological framework identified the potential risk for soil erosion in large-scale zones, and with a more sophisticated model and input data of higher spatial and temporal resolution, results could be specified locally within these risk zones. Accurate assessment of soil erosion in the UBNR basin would support sustainable use of the basin's land resources and possibly open up prospects for cooperation in the Eastern Nile region. | |||||||||
| 書誌情報 |
SCIENCE OF THE TOTAL ENVIRONMENT en : SCIENCE OF THE TOTAL ENVIRONMENT 巻 574, p. 95-108, 発行日 2017-01-01 |
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| 出版者 | ||||||||||
| 出版者 | Elsevier | |||||||||
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| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 00489697 | |||||||||
| DOI | ||||||||||
| 関連タイプ | isIdenticalTo | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | 10.1016/j.scitotenv.2016.09.019 | |||||||||
| 権利 | ||||||||||
| 権利情報 | (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | |||||||||
| 情報源 | ||||||||||
| 関連名称 | Haregeweyn Nigussie, Tsunekawa Atsushi, Poesen Jean, et al. Comprehensive assessment of soil erosion risk for better land use planning in river basins: Case study of the Upper Blue Nile River. SCIENCE OF THE TOTAL ENVIRONMENT. 2017. 574. 95-108. doi:10.10 | |||||||||
| 関連サイト | ||||||||||
| 識別子タイプ | URI | |||||||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S0048969716319362 | |||||||||
| 関連名称 | https://www.sciencedirect.com/science/article/pii/S0048969716319362 | |||||||||
| 著者版フラグ | ||||||||||
| 出版タイプ | VoR | |||||||||
| EISSN | ||||||||||
| 値 | 18791026 | |||||||||
