Temporal and Spatial Variation of Potential Evaporation and Its Influencing Factors in Pearl River Basin from 1980 to 2019
Evaporation is an important link in the water cycle,and in-depth studies on the influence of various meteorological factors on evaporation changes are of great significance for climate change,ecological restoration,and utilization of water resources.In this study,the Penman-Monteith model modified b...
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Editorial Office of Pearl River
2022-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.10.005 |
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| author | ZUO Daxing ZANG Chuanfu WANG Lina |
| author_facet | ZUO Daxing ZANG Chuanfu WANG Lina |
| author_sort | ZUO Daxing |
| collection | DOAJ |
| description | Evaporation is an important link in the water cycle,and in-depth studies on the influence of various meteorological factors on evaporation changes are of great significance for climate change,ecological restoration,and utilization of water resources.In this study,the Penman-Monteith model modified by the Food and Agriculture Organization of the United Nations (FAO) is used to calculate the potential evaporation (ET<sub>0</sub>) in the Pearl River Basin from 1980 to 2019.The Mann-Kendall non-parametric test method and inverse distance weighting method are used to analyze the spatial and temporal distribution characteristics of the ET<sub>0</sub>,and the principal component analysis method is used to analyze the influencing factors.The results show that:① The average ET<sub>0</sub> of the Pearl River Basin is 1 145.8 mm,and the growth rate is 1.37mm/a,which shows an increasing trend.In terms of four seasons,the growth rate increases in spring (0.56 mm/a),autumn (0.4 mm/a),and winter (0.44 mm/a) but decreases in summer (-0.03 mm/a).② In terms of spatial distribution,the annual average ET<sub>0</sub> of the Pearl River Basin is high in the east,west,and south but low in the middle andnorth.The distribution of ET<sub>0 </sub>in summer,autumn,and winter is similar.However,the distribution of ET<sub>0</sub> in spring is opposite to that in summer,autumn,and winter.③ Temperature,average water vapor pressure,and altitude are the leading factors of ET<sub>0</sub> changes.Factors such as temperature,average water vapor pressure,sunshine duration,and wind speed make positive contributions to ET<sub>0</sub>,while altitude,latitude,and relative humidity make negative contributions to ET<sub>0</sub> changes. |
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| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Pearl River |
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| series | Renmin Zhujiang |
| spelling | doaj-art-00cc1d303dd941b3b41a8c3b0e0e27b52025-01-15T02:25:54ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352022-01-014347642215Temporal and Spatial Variation of Potential Evaporation and Its Influencing Factors in Pearl River Basin from 1980 to 2019ZUO DaxingZANG ChuanfuWANG LinaEvaporation is an important link in the water cycle,and in-depth studies on the influence of various meteorological factors on evaporation changes are of great significance for climate change,ecological restoration,and utilization of water resources.In this study,the Penman-Monteith model modified by the Food and Agriculture Organization of the United Nations (FAO) is used to calculate the potential evaporation (ET<sub>0</sub>) in the Pearl River Basin from 1980 to 2019.The Mann-Kendall non-parametric test method and inverse distance weighting method are used to analyze the spatial and temporal distribution characteristics of the ET<sub>0</sub>,and the principal component analysis method is used to analyze the influencing factors.The results show that:① The average ET<sub>0</sub> of the Pearl River Basin is 1 145.8 mm,and the growth rate is 1.37mm/a,which shows an increasing trend.In terms of four seasons,the growth rate increases in spring (0.56 mm/a),autumn (0.4 mm/a),and winter (0.44 mm/a) but decreases in summer (-0.03 mm/a).② In terms of spatial distribution,the annual average ET<sub>0</sub> of the Pearl River Basin is high in the east,west,and south but low in the middle andnorth.The distribution of ET<sub>0 </sub>in summer,autumn,and winter is similar.However,the distribution of ET<sub>0</sub> in spring is opposite to that in summer,autumn,and winter.③ Temperature,average water vapor pressure,and altitude are the leading factors of ET<sub>0</sub> changes.Factors such as temperature,average water vapor pressure,sunshine duration,and wind speed make positive contributions to ET<sub>0</sub>,while altitude,latitude,and relative humidity make negative contributions to ET<sub>0</sub> changes.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.10.005potential evaporationPenman-MonteithMann-KendallPearl River Basin |
| spellingShingle | ZUO Daxing ZANG Chuanfu WANG Lina Temporal and Spatial Variation of Potential Evaporation and Its Influencing Factors in Pearl River Basin from 1980 to 2019 Renmin Zhujiang potential evaporation Penman-Monteith Mann-Kendall Pearl River Basin |
| title | Temporal and Spatial Variation of Potential Evaporation and Its Influencing Factors in Pearl River Basin from 1980 to 2019 |
| title_full | Temporal and Spatial Variation of Potential Evaporation and Its Influencing Factors in Pearl River Basin from 1980 to 2019 |
| title_fullStr | Temporal and Spatial Variation of Potential Evaporation and Its Influencing Factors in Pearl River Basin from 1980 to 2019 |
| title_full_unstemmed | Temporal and Spatial Variation of Potential Evaporation and Its Influencing Factors in Pearl River Basin from 1980 to 2019 |
| title_short | Temporal and Spatial Variation of Potential Evaporation and Its Influencing Factors in Pearl River Basin from 1980 to 2019 |
| title_sort | temporal and spatial variation of potential evaporation and its influencing factors in pearl river basin from 1980 to 2019 |
| topic | potential evaporation Penman-Monteith Mann-Kendall Pearl River Basin |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.10.005 |
| work_keys_str_mv | AT zuodaxing temporalandspatialvariationofpotentialevaporationanditsinfluencingfactorsinpearlriverbasinfrom1980to2019 AT zangchuanfu temporalandspatialvariationofpotentialevaporationanditsinfluencingfactorsinpearlriverbasinfrom1980to2019 AT wanglina temporalandspatialvariationofpotentialevaporationanditsinfluencingfactorsinpearlriverbasinfrom1980to2019 |