| 来源类型 | Monograph (IIASA Interim Report) |
| 规范类型 | 报告 |
| Wheat Yield Functions for Analysis of Land-Use Change in China. | |
| Rosenzweig C; Iglesias A; Fischer G; Liu Y; Baethgen W; Jones JW | |
| 发表日期 | 1998 |
| 出版者 | IIASA, Laxenburg, Austria: IR-98-069 |
| 出版年 | 1998 |
| 语种 | 英语 |
| 摘要 | CERES-Wheat, a dynamic process crop growth model is specified and validated for eight sites in the major wheat-growing regions of China. Crop model results are then used to test functional forms for yield response to nitrogen fertilizer, irrigation water, temperature, and precipitation. The resulting functions are designed to be used in a linked biophysical-economic model of land-use and land-cover change. Variables explaining a significant proportion of simulated yield variance are nitrogen, irrigation water, and precipitation; temperature was not a significant component of yield variation within the range of observed year-to-year variability except at the warmest site. The Mitscherlich-Baule function is found to be more appropriate than the quadratic function at most sites. Crop model simulations with a generic soil with median characteristics of the eight sites were compared to simulations with site-specific soils, providing an initial test of the sensitivity of the functional forms to soil specification. The use of the generic soil does not affect the results significantly; thus, the functions may be considered representative of agriculturally productive regions with similar climate in China under intensifying management conditions. |
| 主题 | Modeling Land-Use and Land-Cover Changes (LUC) |
| URL | http://pure.iiasa.ac.at/id/eprint/5582/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/124798 |
| 推荐引用方式 GB/T 7714 | Rosenzweig C,Iglesias A,Fischer G,et al. Wheat Yield Functions for Analysis of Land-Use Change in China.. 1998. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| IR-98-069.pdf（3261KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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