Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-017-0004-5 |
Increased food production and reduced water use through optimized crop distribution | |
Davis, Kyle Frankel1; 39;Odorico, Paolo2 | |
2017-12-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Italy |
英文摘要 | Growing demand for agricultural commodities for food, fuel and other uses is expected to be met through an intensification of production on lands that are currently under cultivation. Intensification typically entails investments in modern technology such as irrigation or fertilizers - and increases in cropping frequency in regions suitable for multiple growing seasons. Here we combine a process-based crop water model with maps of spatially interpolated yields for 14 major food crops to identify potential differences in food production and water use between current and optimized crop distributions. We find that the current distribution of crops around the world neither attains maximum production nor minimum water use. We identify possible alternative configurations of the agricultural landscape that, by reshaping the global distribution of crops within current rainfed and irrigated croplands based on total water consumption, would feed an additional 825 million people while reducing the consumptive use of rainwater and irrigation water by 14% and 12%, respectively. Such an optimization process does not entail a loss of crop diversity, cropland expansion or impacts on nutrient and feed availability. It also does not necessarily invoke massive investments in modern technology that in many regions would require a switch from smallholder farming to large-scale commercial agriculture with important impacts on rural livelihoods. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416858000013 |
WOS关键词 | CLOSING YIELD GAPS ; FOOTPRINT ; CLIMATE ; FUTURE ; DIETS ; POTENTIALS ; MANAGEMENT ; RESOURCES ; HUMANITY ; LIMITS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34759 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Virginia, Dept Environm Sci, Clark Hall, Charlottesville, VA 22903 USA; 2.Columbia Univ, Earth Inst, New York, NY 10027 USA; 3.Nature Conservancy, New York, NY 10001 USA; 4.Politecn Milan, Dept Civil & Environm Engn, Milan, Italy; 5.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Davis, Kyle Frankel,39;Odorico, Paolo. Increased food production and reduced water use through optimized crop distribution[J]. NATURE GEOSCIENCE,2017,10(12). |
APA | Davis, Kyle Frankel,&39;Odorico, Paolo.(2017).Increased food production and reduced water use through optimized crop distribution.NATURE GEOSCIENCE,10(12). |
MLA | Davis, Kyle Frankel,et al."Increased food production and reduced water use through optimized crop distribution".NATURE GEOSCIENCE 10.12(2017). |
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