| Cite this article: | 苏 豪,杜 崇.兰河灌区的水资源平衡分析[J].灌溉排水学报,,():-. |
| suhao,duchong.兰河灌区的水资源平衡分析[J].灌溉排水学报,,():-. |
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| Water Balance Analysis of Water Resources in Lanhe Irrigation District |
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suhao,duchong
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heilongjiang university
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| Abstract: |
| Agricultural water consumption accounts for more than 60% of China"s total water use. At the same time, agricultural irrigation water consumption accounts for more than 90% of agricultural water consumption. The analysis of water resources and water balance in farmland irrigation areas is of great significance for farmland irrigation. The effective utilization coefficient of agricultural irrigation water in China is only 0.53, so the analysis of agricultural water balance will effectively promote water conservation. Taking Harbin Irrigation District in Heilongjiang Province as an example, the main water supply in the irrigation area is provided by the Eugen River and Hulan River. In this paper, the P-III theoretical curve is used to calculate the frequency, and the annual runoff of the river is calculated. Calculate the water supply quantity, then use the water consumption data of Lanhe Irrigation Area from 2008 to 2019 to model with grey G(1,1) model, calculate and analyze the water supply quantity and water consumption, and predict the supply and demand of agricultural water resources in irrigation area in horizontal years, and carry out water saving irrigation technology and reasonable lifting for the construction of farmland water conservancy projects. The countermeasures to solve agricultural problems such as high water price provide significant reference value. |
| Key words: Agricultural water; Irrigation area; P-III theoretical curve; Gray model;Water balance analysis |
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