How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China?
Water is the source of all life on Earth. Blue water and green water are important for water resource evaluation and are also essential for the efficient use of water resources. By constructing a SWAT model to simulate the spatiotemporal evolution of blue water and green water resources in the Meiji...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2023.1130520/full |
| _version_ | 1811167150923055104 |
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| author | Youcun Liu Shuyue Yang Lihong Meng Tao Liu Mingyong Zhu Xiaolin Ou Yongzhu Xiong David Labat |
| author_facet | Youcun Liu Shuyue Yang Lihong Meng Tao Liu Mingyong Zhu Xiaolin Ou Yongzhu Xiong David Labat |
| author_sort | Youcun Liu |
| collection | DOAJ |
| description | Water is the source of all life on Earth. Blue water and green water are important for water resource evaluation and are also essential for the efficient use of water resources. By constructing a SWAT model to simulate the spatiotemporal evolution of blue water and green water resources in the Meijiang River Basin from 2008 to 2018, this paper explored the spatiotemporal distribution characteristics of blue water and green water and evaluated the change trend of the green water coefficient. The results showed that: 1) the average amount of blue water resources per unit area in the Meijiang River Basin was 921 mm, accounting for 43% of the total water resources; the amount of green water resources was 1,232 mm, accounting for 57% of the total water resources. 2) blue water quantity and precipitation were highly positively correlated, and the overall change in green water quantity had been relatively stable. Water quantity of green also showed a positive correlation with precipitation within a certain range, while the green water coefficient and precipitation showed a highly negative correlation; 3) precipitation and other climatic conditions were the decisive factors affecting the amount of blue water resources in the basin, whereas the nature of the underlying surface, such as the vegetation or land use, altitude, and topography, was the main factor affecting the green water volume of the watershed. |
| first_indexed | 2024-04-10T16:04:18Z |
| format | Article |
| id | doaj.art-faeeb2f360614b67acdff93582af8677 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-10T16:04:18Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-faeeb2f360614b67acdff93582af86772023-02-10T06:48:01ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-02-011110.3389/feart.2023.11305201130520How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China?Youcun Liu0Shuyue Yang1Lihong Meng2Tao Liu3Mingyong Zhu4Xiaolin Ou5Yongzhu Xiong6David Labat7School of Geography and Tourism & Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, Jiaying University, Meizhou, ChinaSchool of Computer, Qinghai Minzu University, Xining, Qinghai Province, ChinaSchool of Geography and Environmental Engineering, Gannan Normal University, Ganzhou, ChinaSchool of Geography and Tourism & Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, Jiaying University, Meizhou, ChinaSchool of Geography and Tourism & Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, Jiaying University, Meizhou, ChinaSchool of Geography and Tourism & Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, Jiaying University, Meizhou, ChinaSchool of Geography and Tourism & Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, Jiaying University, Meizhou, ChinaUMR5563 Géosciences Environnement Toulouse (GET), Toulouse, Midi-Pyrénées, FranceWater is the source of all life on Earth. Blue water and green water are important for water resource evaluation and are also essential for the efficient use of water resources. By constructing a SWAT model to simulate the spatiotemporal evolution of blue water and green water resources in the Meijiang River Basin from 2008 to 2018, this paper explored the spatiotemporal distribution characteristics of blue water and green water and evaluated the change trend of the green water coefficient. The results showed that: 1) the average amount of blue water resources per unit area in the Meijiang River Basin was 921 mm, accounting for 43% of the total water resources; the amount of green water resources was 1,232 mm, accounting for 57% of the total water resources. 2) blue water quantity and precipitation were highly positively correlated, and the overall change in green water quantity had been relatively stable. Water quantity of green also showed a positive correlation with precipitation within a certain range, while the green water coefficient and precipitation showed a highly negative correlation; 3) precipitation and other climatic conditions were the decisive factors affecting the amount of blue water resources in the basin, whereas the nature of the underlying surface, such as the vegetation or land use, altitude, and topography, was the main factor affecting the green water volume of the watershed.https://www.frontiersin.org/articles/10.3389/feart.2023.1130520/fullblue water resourcegreen water flowgreen water storageSWAT modelspatio-temporal evolutionMeijiang River Basin |
| spellingShingle | Youcun Liu Shuyue Yang Lihong Meng Tao Liu Mingyong Zhu Xiaolin Ou Yongzhu Xiong David Labat How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China? Frontiers in Earth Science blue water resource green water flow green water storage SWAT model spatio-temporal evolution Meijiang River Basin |
| title | How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China? |
| title_full | How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China? |
| title_fullStr | How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China? |
| title_full_unstemmed | How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China? |
| title_short | How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China? |
| title_sort | how did blue and green water resource evolute spatially and temporally in the meijiang river basin china |
| topic | blue water resource green water flow green water storage SWAT model spatio-temporal evolution Meijiang River Basin |
| url | https://www.frontiersin.org/articles/10.3389/feart.2023.1130520/full |
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