Improving Agricultural Water Use Efficiency: A Quantitative Study of Zhangye City Using the Static CGE Model with a CES Water-Land Resources Account
文献类型：期刊论文
| 作者 | Liu, Yu1; Hu, Xiaohong2; Zhang, Qian3; Zheng, Mingbo4 |
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 9期号:2页码:15 |
| 关键词 | agricultural water use efficiency CGE model economic impact water conservation land reallocation |
| ISSN号 | 2071-1050 |
| DOI | 10.3390/su9020308 |
| 通讯作者 | Liu, Yu(liuyu@casipm.ac.cn) |
| 英文摘要 | Water resources play a vital role in human life and agriculture irrigation, especially for agriculture-dominant developing countries and regions. Improving agricultural water use efficiency has consequently become a key strategic choice. This study, based on Zhangye City's economic characteristics and data, applies a static Computable General Equilibrium (CGE) model with a constant elasticity of substitution (CES) composited water-land resources account to assess the impact of improving agricultural water use efficiency on economy, water conservation and land reallocation. Results reveal that: Zhangye City's GDP increases by 0.10% owing to an increasing average technical level by improving agricultural water use efficiency; total water consumption decreases by 122 million m(3), 69% of which comes from a reduction of surface water use; and land demand increases by 257.43 hectares mainly due to agricultural land demands. With respect to the sectors' output, export-oriented sectors with higher water intensities in the agricultural sectors benefit most. In contrast, land-intensive sectors contract the most, as the rental price of land rises. Therefore, agricultural water conservation technology should be introduced considering more in surface water. Furthermore, higher demand for agricultural land would reduce land availability for other sectors, thus inhibiting urbanization pace on a small scale. |
| WOS关键词 | HEIHE RIVER-BASIN ; DIFFERENT IRRIGATION REGIMES ; NORTHWEST CHINA ; YIELD ; IMPACTS ; FURROW ; MAIZE |
| 资助项目 | Key Project of National Natural Science Foundation of Science[91325302] ; National Key Research and Development Program of China[2016YFA0602500] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000395590500150 |
| 出版者 | MDPI AG |
| 资助机构 | Key Project of National Natural Science Foundation of Science ; National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/64775]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Yu |
| 作者单位 | 1.Chinese Acad Sci, Inst Sci & Dev, Beijing 100190, Peoples R China 2.Beijing Inst Technol, Sch Management & Econ, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Chinese Agr Policy, Beijing 100101, Peoples R China 4.Xi An Jiao Tong Univ, Sch Econ & Finance, Xian 710061, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yu,Hu, Xiaohong,Zhang, Qian,et al. Improving Agricultural Water Use Efficiency: A Quantitative Study of Zhangye City Using the Static CGE Model with a CES Water-Land Resources Account[J]. SUSTAINABILITY,2017,9(2):15. |
| APA | Liu, Yu,Hu, Xiaohong,Zhang, Qian,&Zheng, Mingbo.(2017).Improving Agricultural Water Use Efficiency: A Quantitative Study of Zhangye City Using the Static CGE Model with a CES Water-Land Resources Account.SUSTAINABILITY,9(2),15. |
| MLA | Liu, Yu,et al."Improving Agricultural Water Use Efficiency: A Quantitative Study of Zhangye City Using the Static CGE Model with a CES Water-Land Resources Account".SUSTAINABILITY 9.2(2017):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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