Effects of Geographical and Climatic Factors on the Intrinsic Water Use Efficiency of Tropical Plants: Evidence from Leaf <sup>13</sup>C
Understanding the water use efficiency (WUE) and adaptation strategies of plants in high-temperature and rainy areas is essential under global climate change. The leaf carbon content (LCC) and intrinsic WUE of 424 plant samples (from 312 plant species) on Hainan Island were measured to examine their...
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MDPI AG
2023-02-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/12/4/951 |
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| author | Xiaoyan Lin Bingsun Wu Jingjing Wang Guoan Wang Zixun Chen Yongyi Liang Jiexi Liu Hao Wang |
| author_facet | Xiaoyan Lin Bingsun Wu Jingjing Wang Guoan Wang Zixun Chen Yongyi Liang Jiexi Liu Hao Wang |
| author_sort | Xiaoyan Lin |
| collection | DOAJ |
| description | Understanding the water use efficiency (WUE) and adaptation strategies of plants in high-temperature and rainy areas is essential under global climate change. The leaf carbon content (LCC) and intrinsic WUE of 424 plant samples (from 312 plant species) on Hainan Island were measured to examine their relationship with geographical and climatic factors in herbs, trees, vines and ferns. The LCC ranged from 306.30 to 559.20 mg g<sup>−1</sup>, with an average of 418.85 mg g<sup>−1</sup>, and decreased with increasing mean annual temperature (MAT). The range of intrinsic WUE was 8.61 to 123.39 μmol mol<sup>−1</sup> with an average value of 60.66 μmol mol<sup>−1</sup>. The intrinsic WUE decreased with increasing altitude and relative humidity (RH) and wind speed (WS), but increased with increasing latitude, MAT and rainy season temperature (RST), indicating that geographical and climatic factors affect the intrinsic WUE. Stepwise regression suggested that in tropical regions with high temperature and humidity, the change in plant intrinsic WUE was mainly driven by WS. In addition, the main factors affecting the intrinsic WUE of different plant functional types of plants are unique, implying that plants of different plant functional types have distinctive adaptive strategies to environmental change. The present study may provide an insight in water management in tropical rainforest. |
| first_indexed | 2024-03-11T08:15:16Z |
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| id | doaj.art-dafc95514025446f901eee9138a92f0d |
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| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T08:15:16Z |
| publishDate | 2023-02-01 |
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| series | Plants |
| spelling | doaj.art-dafc95514025446f901eee9138a92f0d2023-11-16T22:49:39ZengMDPI AGPlants2223-77472023-02-0112495110.3390/plants12040951Effects of Geographical and Climatic Factors on the Intrinsic Water Use Efficiency of Tropical Plants: Evidence from Leaf <sup>13</sup>CXiaoyan Lin0Bingsun Wu1Jingjing Wang2Guoan Wang3Zixun Chen4Yongyi Liang5Jiexi Liu6Hao Wang7School of Forestry, Hainan University, Haikou 570228, ChinaRubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaSchool of Forestry, Hainan University, Haikou 570228, ChinaBeijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Department of Environmental Sciences and Engineering, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, ChinaBeijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Department of Environmental Sciences and Engineering, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, ChinaSchool of Forestry, Hainan University, Haikou 570228, ChinaSchool of Forestry, Hainan University, Haikou 570228, ChinaSchool of Forestry, Hainan University, Haikou 570228, ChinaUnderstanding the water use efficiency (WUE) and adaptation strategies of plants in high-temperature and rainy areas is essential under global climate change. The leaf carbon content (LCC) and intrinsic WUE of 424 plant samples (from 312 plant species) on Hainan Island were measured to examine their relationship with geographical and climatic factors in herbs, trees, vines and ferns. The LCC ranged from 306.30 to 559.20 mg g<sup>−1</sup>, with an average of 418.85 mg g<sup>−1</sup>, and decreased with increasing mean annual temperature (MAT). The range of intrinsic WUE was 8.61 to 123.39 μmol mol<sup>−1</sup> with an average value of 60.66 μmol mol<sup>−1</sup>. The intrinsic WUE decreased with increasing altitude and relative humidity (RH) and wind speed (WS), but increased with increasing latitude, MAT and rainy season temperature (RST), indicating that geographical and climatic factors affect the intrinsic WUE. Stepwise regression suggested that in tropical regions with high temperature and humidity, the change in plant intrinsic WUE was mainly driven by WS. In addition, the main factors affecting the intrinsic WUE of different plant functional types of plants are unique, implying that plants of different plant functional types have distinctive adaptive strategies to environmental change. The present study may provide an insight in water management in tropical rainforest.https://www.mdpi.com/2223-7747/12/4/951water use efficiencycarbon isotope compositionleaf carbon contentclimate change |
| spellingShingle | Xiaoyan Lin Bingsun Wu Jingjing Wang Guoan Wang Zixun Chen Yongyi Liang Jiexi Liu Hao Wang Effects of Geographical and Climatic Factors on the Intrinsic Water Use Efficiency of Tropical Plants: Evidence from Leaf <sup>13</sup>C Plants water use efficiency carbon isotope composition leaf carbon content climate change |
| title | Effects of Geographical and Climatic Factors on the Intrinsic Water Use Efficiency of Tropical Plants: Evidence from Leaf <sup>13</sup>C |
| title_full | Effects of Geographical and Climatic Factors on the Intrinsic Water Use Efficiency of Tropical Plants: Evidence from Leaf <sup>13</sup>C |
| title_fullStr | Effects of Geographical and Climatic Factors on the Intrinsic Water Use Efficiency of Tropical Plants: Evidence from Leaf <sup>13</sup>C |
| title_full_unstemmed | Effects of Geographical and Climatic Factors on the Intrinsic Water Use Efficiency of Tropical Plants: Evidence from Leaf <sup>13</sup>C |
| title_short | Effects of Geographical and Climatic Factors on the Intrinsic Water Use Efficiency of Tropical Plants: Evidence from Leaf <sup>13</sup>C |
| title_sort | effects of geographical and climatic factors on the intrinsic water use efficiency of tropical plants evidence from leaf sup 13 sup c |
| topic | water use efficiency carbon isotope composition leaf carbon content climate change |
| url | https://www.mdpi.com/2223-7747/12/4/951 |
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