Emergy analysis of the blue and green water resources in crop production systems
文献类型：期刊论文
| 作者 | Shang, Kehui2; Zhuo, La1,3,4; Yang, Xi2; Yue, Zhiwei2; Zhao, Danyue2; Wu, Pute1,3,4 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2021-10-15 |
| 卷号 | 319页码:15 |
| 关键词 | Water resource emergy Grain crop Green water Blue water Spatial-temporal variations |
| ISSN号 | 0959-6526 |
| DOI | 10.1016/j.jclepro.2021.128666 |
| 通讯作者 | Zhuo, La(zhuola@nwafu.edu.cn) |
| 英文摘要 | Water consumption in grain production consists of blue (i.e., surface water and groundwater) and green water (i. e., rainwater), however, is rarely distinguished in existing emergy analysis. Taking four major grain crop production systems (rice, wheat, maize, and soybean) by provinces in mainland China over the period 2001-2016 as the study case, in this study the blue and green water were differentiated, for the first time, in the emergy analysis for crop production systems based on water footprint assessment. Three indicators were estimated per crop per province per year: water resource emergy input (WEI), water resource emergy contribution ratio (WECR), and water resource emergy use efficiency (WEUE). Results show that during the study period, the total WEI into the major grain crop production systems increased by 16.61%; blue and green WEI accounted for 52.64% and 47.36%, respectively, by 2016. Although the blue WECR was higher than green WECR, it decreased significantly over the study period. The annual average green WEUE was 10.99 sej sej-1, 7.7 times the blue; moreover, it increased by 27.28% over the study period. The annual average total WECRs in nine provinces were higher than the national average, but the corresponding total WEUEs were lower than the national average; of these, four were distributed in arid and rainwater-deficient areas of northwest China. The emergy analysis of blue and green water separately provides information for a more precise and efficient water allocation as well as better cropping structures given corresponding water endowments. |
| WOS关键词 | SIMULATE YIELD RESPONSE ; 3 AGRICULTURAL SYSTEMS ; SUSTAINABILITY ANALYSIS ; FOOTPRINT ; ENERGY ; ECOSYSTEMS ; EFFICIENCY ; MODEL ; RIVER ; FOOD |
| 资助项目 | National Natural Science Foundation of China[51809215] ; West Light Talent Program of the Chinese Academy of Sciences |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000728681500008 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; West Light Talent Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/168600]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhuo, La |
| 作者单位 | 1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China 3.Natl Engn Res Ctr Water Saving Irrigat Yangling, Yangling 712100, Shaanxi, Peoples R China 4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shang, Kehui,Zhuo, La,Yang, Xi,et al. Emergy analysis of the blue and green water resources in crop production systems[J]. JOURNAL OF CLEANER PRODUCTION,2021,319:15. |
| APA | Shang, Kehui,Zhuo, La,Yang, Xi,Yue, Zhiwei,Zhao, Danyue,&Wu, Pute.(2021).Emergy analysis of the blue and green water resources in crop production systems.JOURNAL OF CLEANER PRODUCTION,319,15. |
| MLA | Shang, Kehui,et al."Emergy analysis of the blue and green water resources in crop production systems".JOURNAL OF CLEANER PRODUCTION 319(2021):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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