KMS Institute Of Geographic Sciences And Natural Resources Research,CAS
| Characterizing spatial and temporal variability of crop yield caused by climate and irrigation in the North China Plain | |
Chen, Chao1; Baethgen, Walter E.1; Wang, Enli2; Yu, Qiang3,4
| |
| 2011-12-01 | |
| Source Publication | THEORETICAL AND APPLIED CLIMATOLOGY
 |
| Volume | 106Issue:3-4Pages:365-381 |
| Abstract | Grain yields of wheat and maize were obtained from national statistics and simulated with an agricultural system model to investigate the effects of historical climate variability and irrigation on crop yield in the North China Plain (NCP). Both observed and simulated yields showed large temporal and spatial variability due to variations in climate and irrigation supply. Wheat yield under full irrigation (FI) was 8 t ha(-1) or higher in 80% of seasons in the north, it ranged from 7 to 10 t ha(-1) in 90% of seasons in central NCP, and less than 9 t ha(-1) in 85% of seasons in the south. Reduced irrigation resulted in increased crop yield variability. Wheat yield under supplemental irrigation, i.e., to meet only 50% of irrigation water requirement [supplemental irrigation (SI)] ranged from 2.7 to 8.8 t ha(-1) with the maximum frequency of seasons having the range of 4-6 t ha(-1) in the north, 4-7 t ha(-1) in central NCP, and 5-8 t ha(-1) in the south. Wheat yield under no irrigation (NI) was lower than 1 t ha(-1) in about 50% of seasons. Considering the NCP as a whole, simulated maize yield under FI ranged from 3.9 to 11.8 t ha(-1) with similar frequency distribution in the range of 6-11.8 t ha(-1) with the interval of 2 t ha(-1). It ranged from 0 to 11.8 t ha(-1), uniformly distributed into the range of 4-10 t ha(-1) under SI, and NI. The results give an insight into the levels of regional crop production affected by climate and water management strategies. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences |
| WOS Subject Extended | Meteorology & Atmospheric Sciences |
| WOS Keyword | PRODUCTION SYSTEMS SIMULATOR ; AGRICULTURAL PRODUCTION ; PRODUCTION POTENTIALS ; WATER-USE ; MODEL ; WHEAT ; MAIZE ; APSIM ; MANAGEMENT ; IMPACTS |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Meteorology & Atmospheric Sciences |
| WOS ID | WOS:000297165500007 |
| Publisher | SPRINGER WIEN |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.igsnrr.ac.cn/handle/311030/68082 |
| Collection | 中国科学院地理科学与资源研究所 |
| Corresponding Author | Chen, Chao |
| Affiliation | 1.Columbia Univ, Earth Inst, Int Res Inst Climate & Soc, Palisades, NY USA 2.CSIRO Land & Water APSRU, Canberra, ACT 2601, Australia 3.Univ Technol, Sch Environm, Sydney, NSW, Australia 4.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| Recommended Citation GB/T 7714 | Chen, Chao,Baethgen, Walter E.,Wang, Enli,et al. Characterizing spatial and temporal variability of crop yield caused by climate and irrigation in the North China Plain[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2011,106(3-4):365-381. |
| APA | Chen, Chao,Baethgen, Walter E.,Wang, Enli,&Yu, Qiang.(2011).Characterizing spatial and temporal variability of crop yield caused by climate and irrigation in the North China Plain.THEORETICAL AND APPLIED CLIMATOLOGY,106(3-4),365-381. |
| MLA | Chen, Chao,et al."Characterizing spatial and temporal variability of crop yield caused by climate and irrigation in the North China Plain".THEORETICAL AND APPLIED CLIMATOLOGY 106.3-4(2011):365-381. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment