Surface energy partitioning and evapotranspiration in a Pinus tabuliformis plantation in Northeast China
Examining the land-atmosphere interaction in vegetation rehabilitation areas is important for better understanding of land surface processes affected by human activities. In this study, energy flux observations were used to investigate surface energy partitioning and evapotranspiration (ET) in a Pin...
| Main Authors: | , , , , , , |
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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 Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1048828/full |
| _version_ | 1811173244736110592 |
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| author | Xiang Gao Xiang Gao Xiang Gao Jinsong Zhang Jinsong Zhang Jinsong Zhang Jinfeng Cai Songyi Pei Linqi Liu Linqi Liu Linqi Liu Ping Meng Ping Meng Ping Meng Hui Huang Hui Huang Hui Huang |
| author_facet | Xiang Gao Xiang Gao Xiang Gao Jinsong Zhang Jinsong Zhang Jinsong Zhang Jinfeng Cai Songyi Pei Linqi Liu Linqi Liu Linqi Liu Ping Meng Ping Meng Ping Meng Hui Huang Hui Huang Hui Huang |
| author_sort | Xiang Gao |
| collection | DOAJ |
| description | Examining the land-atmosphere interaction in vegetation rehabilitation areas is important for better understanding of land surface processes affected by human activities. In this study, energy flux observations were used to investigate surface energy partitioning and evapotranspiration (ET) in a Pinus tabuliformis plantation in Northeast China in 2020 and 2021. The sensible heat flux (H) was the dominant component of Rn, and the ratio of H to the latent heat flux was higher than 1 at all growth stages. The two most important factors influencing the midday evaporative fraction and daily ET were the normalized difference vegetation index (NDVI) and soil water content at 10 cm depth (SWC10). Cumulative precipitation (P) minus ET was 62.83 and 239.90 mm in 2020 (annual P of 435.2 mm) and 2021 (annual P of 632.8 mm), respectively. The midday Priestley–Taylor coefficient (α), surface conductance (gs), and decoupling coefficient increased gradually from the onset of the mid-growing stage and decreased from the later growing stage. Midday α and gs increased with NDVI and SWC10 increasing until the NDVI (0.5) and SWC10 (0.17 mm3 mm−3) thresholds were reached, respectively. Midday α and gs were significantly influenced by vapor pressure deficit below 3 kPa, and the threshold value of midday gs was approximately 12 mm s−1. In conclusion, this Pinus tabuliformis plantation regulated surface energy partitioning properly, and left a part of P for surface runoff and groundwater recharge in the semiarid region of Northeast China. |
| first_indexed | 2024-04-10T17:44:55Z |
| format | Article |
| id | doaj.art-fd8e55a0283c46ae9616e0aa20b66e90 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-10T17:44:55Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-fd8e55a0283c46ae9616e0aa20b66e902023-02-03T05:50:22ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-02-011410.3389/fpls.2023.10488281048828Surface energy partitioning and evapotranspiration in a Pinus tabuliformis plantation in Northeast ChinaXiang Gao0Xiang Gao1Xiang Gao2Jinsong Zhang3Jinsong Zhang4Jinsong Zhang5Jinfeng Cai6Songyi Pei7Linqi Liu8Linqi Liu9Linqi Liu10Ping Meng11Ping Meng12Ping Meng13Hui Huang14Hui Huang15Hui Huang16Key Laboratory of Tree Breeding and Cultivation of National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, ChinaCollaborative Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, ChinaHenan Xiaolangdi Earth Critical Zone National Research Station on the Middle Yellow River, Jiyuan, ChinaKey Laboratory of Tree Breeding and Cultivation of National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, ChinaCollaborative Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, ChinaHenan Xiaolangdi Earth Critical Zone National Research Station on the Middle Yellow River, Jiyuan, ChinaCollaborative Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, ChinaState-owned Jianping County Heishui Mechanized Forest Farm, Chaoyang, ChinaKey Laboratory of Tree Breeding and Cultivation of National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, ChinaCollaborative Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, ChinaHenan Xiaolangdi Earth Critical Zone National Research Station on the Middle Yellow River, Jiyuan, ChinaKey Laboratory of Tree Breeding and Cultivation of National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, ChinaCollaborative Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, ChinaHenan Xiaolangdi Earth Critical Zone National Research Station on the Middle Yellow River, Jiyuan, ChinaKey Laboratory of Tree Breeding and Cultivation of National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, ChinaCollaborative Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, ChinaHenan Xiaolangdi Earth Critical Zone National Research Station on the Middle Yellow River, Jiyuan, ChinaExamining the land-atmosphere interaction in vegetation rehabilitation areas is important for better understanding of land surface processes affected by human activities. In this study, energy flux observations were used to investigate surface energy partitioning and evapotranspiration (ET) in a Pinus tabuliformis plantation in Northeast China in 2020 and 2021. The sensible heat flux (H) was the dominant component of Rn, and the ratio of H to the latent heat flux was higher than 1 at all growth stages. The two most important factors influencing the midday evaporative fraction and daily ET were the normalized difference vegetation index (NDVI) and soil water content at 10 cm depth (SWC10). Cumulative precipitation (P) minus ET was 62.83 and 239.90 mm in 2020 (annual P of 435.2 mm) and 2021 (annual P of 632.8 mm), respectively. The midday Priestley–Taylor coefficient (α), surface conductance (gs), and decoupling coefficient increased gradually from the onset of the mid-growing stage and decreased from the later growing stage. Midday α and gs increased with NDVI and SWC10 increasing until the NDVI (0.5) and SWC10 (0.17 mm3 mm−3) thresholds were reached, respectively. Midday α and gs were significantly influenced by vapor pressure deficit below 3 kPa, and the threshold value of midday gs was approximately 12 mm s−1. In conclusion, this Pinus tabuliformis plantation regulated surface energy partitioning properly, and left a part of P for surface runoff and groundwater recharge in the semiarid region of Northeast China.https://www.frontiersin.org/articles/10.3389/fpls.2023.1048828/fullsurface energy partitioningevapotranspirationsurface parametersPinus tabuliformis plantationNortheast China |
| spellingShingle | Xiang Gao Xiang Gao Xiang Gao Jinsong Zhang Jinsong Zhang Jinsong Zhang Jinfeng Cai Songyi Pei Linqi Liu Linqi Liu Linqi Liu Ping Meng Ping Meng Ping Meng Hui Huang Hui Huang Hui Huang Surface energy partitioning and evapotranspiration in a Pinus tabuliformis plantation in Northeast China Frontiers in Plant Science surface energy partitioning evapotranspiration surface parameters Pinus tabuliformis plantation Northeast China |
| title | Surface energy partitioning and evapotranspiration in a Pinus tabuliformis plantation in Northeast China |
| title_full | Surface energy partitioning and evapotranspiration in a Pinus tabuliformis plantation in Northeast China |
| title_fullStr | Surface energy partitioning and evapotranspiration in a Pinus tabuliformis plantation in Northeast China |
| title_full_unstemmed | Surface energy partitioning and evapotranspiration in a Pinus tabuliformis plantation in Northeast China |
| title_short | Surface energy partitioning and evapotranspiration in a Pinus tabuliformis plantation in Northeast China |
| title_sort | surface energy partitioning and evapotranspiration in a pinus tabuliformis plantation in northeast china |
| topic | surface energy partitioning evapotranspiration surface parameters Pinus tabuliformis plantation Northeast China |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1048828/full |
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