Spatial and Temporal Distribution Characteristics of Water Requirements for Maize in Inner Mongolia from 1959 to 2018
Crop water requirements are crucial for agricultural water management and redistribution. Based on meteorological and agricultural observation data, the effective precipitation (<i>P</i><sub>e</sub>), water requirements (<i>ET</i><sub>c</sub>), and irr...
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MDPI AG
2020-11-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/12/11/3080 |
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| author | Shuaishuai Qiao Zhongyi Qu Xiaoyu Gao Xiujuan Yang Xinwei Feng |
| author_facet | Shuaishuai Qiao Zhongyi Qu Xiaoyu Gao Xiujuan Yang Xinwei Feng |
| author_sort | Shuaishuai Qiao |
| collection | DOAJ |
| description | Crop water requirements are crucial for agricultural water management and redistribution. Based on meteorological and agricultural observation data, the effective precipitation (<i>P</i><sub>e</sub>), water requirements (<i>ET</i><sub>c</sub>), and irrigation water requirements (<i>I</i><sub>r</sub>) in the maize growing areas of Inner Mongolia were calculated. Furthermore, climatic trends of these variables were analysed to reveal their temporal and spatial distributions. The research results are as follows: the average <i>P</i><sub>e</sub> of maize in Inner Mongolia during the entire growth period was 125.9 mm, with an increasing trend from west to east. The <i>P</i><sub>e</sub> in the middle growth period of maize was the highest and was small in the early and late growth stages. The <i>P</i><sub>e</sub> climate exhibited a negative slope with a decreasing trend. The average <i>ET</i><sub>c</sub> of maize during the entire growth period was 480.6 mm. The high-value areas are mainly distributed in the Wulatzhongqi and Linhe areas. The average <i>I</i><sub>r</sub> of maize during the entire growth period was 402.9 mm, and the spatial distribution is similar to that of <i>ET<sub>c</sub></i>. In each growth period, <i>I<sub>r</sub></i> showed an increasing trend. Supplemental irrigation should be added appropriately during each growth period to ensure the normal growth of maize. This study can provide an effective basis for the optimisation of irrigation and regional water conservation in the maize cultivation area of Inner Mongolia. |
| first_indexed | 2024-03-10T15:08:09Z |
| format | Article |
| id | doaj.art-8672c7f10a4847b78714be5ec870f2aa |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T15:08:09Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-8672c7f10a4847b78714be5ec870f2aa2023-11-20T19:36:40ZengMDPI AGWater2073-44412020-11-011211308010.3390/w12113080Spatial and Temporal Distribution Characteristics of Water Requirements for Maize in Inner Mongolia from 1959 to 2018Shuaishuai Qiao0Zhongyi Qu1Xiaoyu Gao2Xiujuan Yang3Xinwei Feng4College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, No. 306 Zhaowuda Road, Saihan District, Hohhot 010018, ChinaCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, No. 306 Zhaowuda Road, Saihan District, Hohhot 010018, ChinaCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, No. 306 Zhaowuda Road, Saihan District, Hohhot 010018, ChinaCollege of Agronomy, Inner Mongolia Agricultural University, No.275, XinJian East Street, Hohhot 010019, ChinaTaiyuan Institute of Soil and Water Conservation, Taiyuan 030021, ChinaCrop water requirements are crucial for agricultural water management and redistribution. Based on meteorological and agricultural observation data, the effective precipitation (<i>P</i><sub>e</sub>), water requirements (<i>ET</i><sub>c</sub>), and irrigation water requirements (<i>I</i><sub>r</sub>) in the maize growing areas of Inner Mongolia were calculated. Furthermore, climatic trends of these variables were analysed to reveal their temporal and spatial distributions. The research results are as follows: the average <i>P</i><sub>e</sub> of maize in Inner Mongolia during the entire growth period was 125.9 mm, with an increasing trend from west to east. The <i>P</i><sub>e</sub> in the middle growth period of maize was the highest and was small in the early and late growth stages. The <i>P</i><sub>e</sub> climate exhibited a negative slope with a decreasing trend. The average <i>ET</i><sub>c</sub> of maize during the entire growth period was 480.6 mm. The high-value areas are mainly distributed in the Wulatzhongqi and Linhe areas. The average <i>I</i><sub>r</sub> of maize during the entire growth period was 402.9 mm, and the spatial distribution is similar to that of <i>ET<sub>c</sub></i>. In each growth period, <i>I<sub>r</sub></i> showed an increasing trend. Supplemental irrigation should be added appropriately during each growth period to ensure the normal growth of maize. This study can provide an effective basis for the optimisation of irrigation and regional water conservation in the maize cultivation area of Inner Mongolia.https://www.mdpi.com/2073-4441/12/11/3080climatic trendseffective precipitationwater requirementsirrigation water requirements |
| spellingShingle | Shuaishuai Qiao Zhongyi Qu Xiaoyu Gao Xiujuan Yang Xinwei Feng Spatial and Temporal Distribution Characteristics of Water Requirements for Maize in Inner Mongolia from 1959 to 2018 Water climatic trends effective precipitation water requirements irrigation water requirements |
| title | Spatial and Temporal Distribution Characteristics of Water Requirements for Maize in Inner Mongolia from 1959 to 2018 |
| title_full | Spatial and Temporal Distribution Characteristics of Water Requirements for Maize in Inner Mongolia from 1959 to 2018 |
| title_fullStr | Spatial and Temporal Distribution Characteristics of Water Requirements for Maize in Inner Mongolia from 1959 to 2018 |
| title_full_unstemmed | Spatial and Temporal Distribution Characteristics of Water Requirements for Maize in Inner Mongolia from 1959 to 2018 |
| title_short | Spatial and Temporal Distribution Characteristics of Water Requirements for Maize in Inner Mongolia from 1959 to 2018 |
| title_sort | spatial and temporal distribution characteristics of water requirements for maize in inner mongolia from 1959 to 2018 |
| topic | climatic trends effective precipitation water requirements irrigation water requirements |
| url | https://www.mdpi.com/2073-4441/12/11/3080 |
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