Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1007/s00271-018-0608-6 |
| Mismatch between crop water requirements and irrigation in Heihe River Basin, Northwestern China | |
| Tan, Minghong1,2 | |
| 通讯作者 | Tan, Minghong |
| 来源期刊 | IRRIGATION SCIENCE
 |
| ISSN | 0342-7188 |
| EISSN | 1432-1319 |
| 出版年 | 2019 |
| 卷号 | 37期号:1页码:95-103 |
| 英文摘要 | Heihe Inland River Basin is the second largest in China. Water use for agriculture in the middle section of the basin accounts for over 90% of total usage; this leads to lake shrinkage, river blanking, and desertification of the downstream basin. Crop water requirements within the Ganzhou district of the Heihe River Basin in Northwestern China were modeled using a parameter calibration of the CROPWAT model, based on household survey data on crop coefficients and water usage, taking into account effective precipitation. The results show that modeled evapotranspiration for seed maize was consistent with evapotranspiration determined from observed data based on eddy covariance, as adjusted R-2 values approached 0.73 (P < 0.001). Vast differences were observed between actual irrigation and water requirements across the study area. Excessive water was used for irrigation, particularly in the case of maize, where mismatches in dates were widespread between actual irrigation and water requirements. Thus, to save water and increase yield, a set schedule for irrigation was recommended. |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Peoples R China |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000454818800008 |
| WOS关键词 | MIDDLE REACHES ; USE EFFICIENCY ; BOWEN-RATIO ; EVAPOTRANSPIRATION ; LAND ; PRODUCTIVITY ; SCARCITY ; BALANCE ; DEMAND ; WHEAT |
| WOS类目 | Agronomy ; Water Resources |
| WOS研究方向 | Agriculture ; Water Resources |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/216558 |
| 作者单位 | 1.Chinese Acad Sci, IGSNRR, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China; 2.Univ Chinese Acad Sci, Int Coll, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Minghong. Mismatch between crop water requirements and irrigation in Heihe River Basin, Northwestern China[J],2019,37(1):95-103. |
| APA | Tan, Minghong.(2019).Mismatch between crop water requirements and irrigation in Heihe River Basin, Northwestern China.IRRIGATION SCIENCE,37(1),95-103. |
| MLA | Tan, Minghong."Mismatch between crop water requirements and irrigation in Heihe River Basin, Northwestern China".IRRIGATION SCIENCE 37.1(2019):95-103. |
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