Study on Transpiration Water Consumption and Photosynthetic Characteristics of Landscape Tree Species under Ozone Stress
Using <i>Pinus bungeana</i>, <i>Platycladus orientalis</i>, <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> as research objects, three open-top chambers with different ozone-concentration gradients were set up (NF, NF40 and NF80) based on trunk...
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| Format: | Article |
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MDPI AG
2022-07-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/13/7/1139 |
| _version_ | 1827619135974014976 |
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| author | Bo Chen Qingfeng Song Qinghua Pan |
| author_facet | Bo Chen Qingfeng Song Qinghua Pan |
| author_sort | Bo Chen |
| collection | DOAJ |
| description | Using <i>Pinus bungeana</i>, <i>Platycladus orientalis</i>, <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> as research objects, three open-top chambers with different ozone-concentration gradients were set up (NF, NF40 and NF80) based on trunk sap-flow technology to study the difference in ozone absorption by trees under different ozone concentrations. The results showed that the monthly and diurnal variations of sap-flow density of different tree species decreased with the increase in ozone concentration, and the increase in ozone concentration reduced the water consumption, ozone uptake rate (<i>F</i><sub>O3</sub>), net photosynthetic rate (<i>P<sub>n</sub></i>) and water-use efficiency (WUE) of different tree species. The sap-flow density, water consumption, <i>F</i><sub>O3</sub> and WUE of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> were higher than those of <i>Pinus bungeana</i> and <i>Platycladus orientali</i>s under different ozone concentrations. The sap-flow density, water consumption, <i>F</i><sub>O3</sub> and WUE of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> decreased significantly at the ozone concentrations of NF40 and NF80; compared with the ozone concentration of NF, the sap flow density of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> decreased by 1.04 and 1.03 times as much as that of <i>Pinus bungeana</i> and <i>Platycladus orientalis</i>, respectively; the water consumption of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> decreased by 1.82 and 1.56 times that of <i>Pinus bungeana</i> and Platycladus orientalis, respectively; the decline rate of <i>F</i><sub>O3</sub> in <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> was 1.30 and 1.04 times that of <i>Pinus bungeana</i> and <i>Platycladus orientalis</i>, respectively; and the decline rate of WUE of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> was 1.52 and 1.64 times that of <i>Pinus bungeana</i> and <i>Platycladus orientalis</i>, respectively. <i>Pinus bungeana</i> and <i>Platycladus orientalis</i> have stronger tolerance to ozone, while <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> were weak. A variety of conifers can be planted in areas with serious ozone pollution. |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-03-09T10:22:58Z |
| publishDate | 2022-07-01 |
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| series | Atmosphere |
| spelling | doaj.art-255ae759f3d841449ff47ae1f4c526f72023-12-01T21:53:12ZengMDPI AGAtmosphere2073-44332022-07-01137113910.3390/atmos13071139Study on Transpiration Water Consumption and Photosynthetic Characteristics of Landscape Tree Species under Ozone StressBo Chen0Qingfeng Song1Qinghua Pan2Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, ChinaEcology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100093, ChinaBeijing Academy of Agriculture and Forestry Sciences, Beijing 100097, ChinaUsing <i>Pinus bungeana</i>, <i>Platycladus orientalis</i>, <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> as research objects, three open-top chambers with different ozone-concentration gradients were set up (NF, NF40 and NF80) based on trunk sap-flow technology to study the difference in ozone absorption by trees under different ozone concentrations. The results showed that the monthly and diurnal variations of sap-flow density of different tree species decreased with the increase in ozone concentration, and the increase in ozone concentration reduced the water consumption, ozone uptake rate (<i>F</i><sub>O3</sub>), net photosynthetic rate (<i>P<sub>n</sub></i>) and water-use efficiency (WUE) of different tree species. The sap-flow density, water consumption, <i>F</i><sub>O3</sub> and WUE of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> were higher than those of <i>Pinus bungeana</i> and <i>Platycladus orientali</i>s under different ozone concentrations. The sap-flow density, water consumption, <i>F</i><sub>O3</sub> and WUE of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> decreased significantly at the ozone concentrations of NF40 and NF80; compared with the ozone concentration of NF, the sap flow density of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> decreased by 1.04 and 1.03 times as much as that of <i>Pinus bungeana</i> and <i>Platycladus orientalis</i>, respectively; the water consumption of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> decreased by 1.82 and 1.56 times that of <i>Pinus bungeana</i> and Platycladus orientalis, respectively; the decline rate of <i>F</i><sub>O3</sub> in <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> was 1.30 and 1.04 times that of <i>Pinus bungeana</i> and <i>Platycladus orientalis</i>, respectively; and the decline rate of WUE of <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> was 1.52 and 1.64 times that of <i>Pinus bungeana</i> and <i>Platycladus orientalis</i>, respectively. <i>Pinus bungeana</i> and <i>Platycladus orientalis</i> have stronger tolerance to ozone, while <i>Koelreuteria paniculata</i> and <i>Ginkgo biloba</i> were weak. A variety of conifers can be planted in areas with serious ozone pollution.https://www.mdpi.com/2073-4433/13/7/1139transpiration water consumptionozone stressozone uptakesapflowdifferent tree species |
| spellingShingle | Bo Chen Qingfeng Song Qinghua Pan Study on Transpiration Water Consumption and Photosynthetic Characteristics of Landscape Tree Species under Ozone Stress Atmosphere transpiration water consumption ozone stress ozone uptake sapflow different tree species |
| title | Study on Transpiration Water Consumption and Photosynthetic Characteristics of Landscape Tree Species under Ozone Stress |
| title_full | Study on Transpiration Water Consumption and Photosynthetic Characteristics of Landscape Tree Species under Ozone Stress |
| title_fullStr | Study on Transpiration Water Consumption and Photosynthetic Characteristics of Landscape Tree Species under Ozone Stress |
| title_full_unstemmed | Study on Transpiration Water Consumption and Photosynthetic Characteristics of Landscape Tree Species under Ozone Stress |
| title_short | Study on Transpiration Water Consumption and Photosynthetic Characteristics of Landscape Tree Species under Ozone Stress |
| title_sort | study on transpiration water consumption and photosynthetic characteristics of landscape tree species under ozone stress |
| topic | transpiration water consumption ozone stress ozone uptake sapflow different tree species |
| url | https://www.mdpi.com/2073-4433/13/7/1139 |
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