| DOI: | 10.1002/2013GL058281
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| 论文题名: | The water footprint of land grabbing |
| 作者: | Rulli M.C.; D'Odorico P.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8304
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| EISSN: | 1944-8035
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| 出版年: | 2013
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| 卷: | 40, 期:23 | | 起始页码: | 6130
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| 结束页码: | 6135
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| 语种: | 英语
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| 英文关键词: | Food Security
; Land Grabbing
; Water Grabbing
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| Scopus关键词: | Agricultural productions
; Fertilizer applications
; Food security
; Foreign acquisitions
; Green and blue waters
; Potential evapotranspiration
; Water footprint
; Water withdrawal
; Agriculture
; Food supply
; Water supply
; Water pollution
; agricultural production
; environmental economics
; evapotranspiration
; fertilizer application
; food security
; investment
; irrigation system
; negotiation process
; profitability
; rainwater
; water footprint
; water pollution
; water resource
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| 英文摘要: | The increasing global demand for food, fibers, and biofuels has made investments in agriculture a priority for some governments and corporations eager to expand their agricultural production while securing good profits. Here we calculate the water appropriation associated with land deals at different negotiation and implementation stages. Using estimates of actual and potential evapotranspiration for the crops planted in the acquired land, we calculate the green and blue water appropriated by land investors under a variety of irrigation scenarios. We also determine the grey water footprint as the amount of water required to dilute to allowable standards the pollution resulting from fertilizer applications. We found that about 380 × 109 m 3 yr-1 of rainwater is appropriated with the 43 million ha of reported contract area acquired by agri-investors (>240 × 10 9 m3 yr-1 in the 29 million ha of foreign acquisitions only). This water would be sufficient to feed ≈ 300-390 million people. Key Points Land and water grabbing are occurring at alarming rates. Grabbed water would be sufficient to improve food security in grabbed countries. Water grabbing is associated with water withdrawals increase ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891598820&doi=10.1002%2f2013GL058281&partnerID=40&md5=35a720fb3f9e8621e2ce691ae8e4ea14
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/5568
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Civil and Environmental Engineering, Politecnico di Milano, Piazza L.Da Vinci, 32, Milano, IT-20133, Italy
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| Recommended Citation: | |
Rulli M.C.,D'Odorico P.. The water footprint of land grabbing[J]. Geophysical Research Letters,2013-01-01,40(23).
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