Integrated assessment of cropping patterns under different policy scenarios in Quzhou County, North China Plain
文献类型：SCI/SSCI论文
| 作者 | Pan Y. |
| 发表日期 | 2014 |
| 关键词 | Integrated assessment Land use Crop systems Government policy North China Plain water-use efficiency south-east asia land-use rapid urbanization food security soil management region sustainability dynamics |
| 英文摘要 | Agricultural land use is affected by government policies and leads to different consequences of regional sustainability. In this work, changes in cropping patterns including acreage, cropping locations and management-related environmental impacts were simulated under various policy scenarios for Quzhou County, China. This county is in China's major agricultural region, the North China Plain. Four dominant crop systems were categorized (winter wheat/summer maize, winter wheat/summer maize/spring maize, cotton, and vegetables) and analyzed, following two alternative policy scenarios that either prioritized government funding to subsidize crop production ("subsidy" scenario) or promoted advanced irrigation techniques ("technique" scenario). Input output coefficients for all four crop systems were determined, mainly irrigation demand, yield, and price of produce, but other factors like a limited area of arable land and scarce regional water resources were also considered. For the simulation, a UNDO Inc. system was linked with the CLUE (Conversion of Land Use and its Effects) model. Temporal changes of crop systems were simulated with the LINDO system, whereas spatial dynamics of cropping patterns were simulated with the CLUE model, based on land suitability maps. The results show that crop patterns changed variably with time under the two scenarios, and water availability was the primary constraint on sustainability of land use. Under the subsidy scenario, winter wheat/summer maize/spring maize became dominant across the entire county, replacing other crop systems. In contrast, the vegetable system gradually occupied farmland surrounding the township under the technique scenario. The different policies produced opposite consequences for regional sustainability. Although a "subsidy" policy contributed to farmers' income, it did not encourage water conservation for sustainable crop production, leading to land abandonment because of water shortage. In contrast, the "technique" policy partially cut direct financial benefits to farmers, but promoted water conservation and made a substantial contribution to agricultural sustainability. Published by Elsevier Ltd. |
| 出处 | Land Use Policy |
| 卷 | 40 |
| 页 | 131-139 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0264-8377 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/29658]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Pan Y.. Integrated assessment of cropping patterns under different policy scenarios in Quzhou County, North China Plain. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。