Morphological and physiological responses of critically endangered Acer catalpifolium to nitrogen deposition levels
Extensive industrial and agricultural emissions of reactive nitrogen (N) have led to severe N deposition and negative impacts on biodiversity. Acer catalpifolium is a critically endangered plant mainly distributed in N deposition hotspot of China, the influence of N deposition on morphological and p...
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Elsevier
2023-06-01
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Series: | Global Ecology and Conservation |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989423000665 |
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author | Yuyang Zhang Xiaoyu Cheng Zhipeng Sha Wenbao Ma Buddhi Dayananda Brendan Fu Shuang Li Ruiheng Lyu |
author_facet | Yuyang Zhang Xiaoyu Cheng Zhipeng Sha Wenbao Ma Buddhi Dayananda Brendan Fu Shuang Li Ruiheng Lyu |
author_sort | Yuyang Zhang |
collection | DOAJ |
description | Extensive industrial and agricultural emissions of reactive nitrogen (N) have led to severe N deposition and negative impacts on biodiversity. Acer catalpifolium is a critically endangered plant mainly distributed in N deposition hotspot of China, the influence of N deposition on morphological and physiological function of this species remains unclear. Therefore, a simulation experiment was conducted, wherein A. catalpifolium seedlings were subjected to different N deposition levels (0, 30, 60, 100, 150, and 200 kg N ha-1 y-1). The effects of N deposition on the morphological, photosynthesis, and fluorescence characteristics of A. catalpifolium were investigated. Results showed that height, biomass, crown, and basal diameter of A. catalpifolium were improved by N deposition, while vegetative growth was inhibited after the N input excess 100 kg N ha-1 y-1. Leaf gas exchange indices, photosynthetic light, CO2 response curve, fluorescence parameters and chlorophyll content were also improved by N addition but impeded by high levels of N deposition. In conclusion, the responses of A. catalpifolium to different levels of N deposition suggested that low and moderate N levels provided the necessary nutrient supply for plant growth. This study has major implications for the conservation and population recovery of A. catalpifolium and biodiversity protection in certain regions. |
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last_indexed | 2024-04-10T04:08:56Z |
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spelling | doaj.art-ff87362382b14dd4b9bd073fe345b1e62023-03-13T04:15:34ZengElsevierGlobal Ecology and Conservation2351-98942023-06-0143e02431Morphological and physiological responses of critically endangered Acer catalpifolium to nitrogen deposition levelsYuyang Zhang0Xiaoyu Cheng1Zhipeng Sha2Wenbao Ma3Buddhi Dayananda4Brendan Fu5Shuang Li6Ruiheng Lyu7The national-Local Joint Engineering Laboratory of High Efficiency and Superior-Quality Cultivation and Fruit Deep Processing Technology on Characteristic Fruit Trees, College of Plant Science, Tarim University, Alear, Xinjiang 843300, ChinaThe national-Local Joint Engineering Laboratory of High Efficiency and Superior-Quality Cultivation and Fruit Deep Processing Technology on Characteristic Fruit Trees, College of Plant Science, Tarim University, Alear, Xinjiang 843300, ChinaFaculty of Morden Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China; Corresponding authors.Ecological Restoration and Conservation of Forests and Wetlands Key Laboratory of Sichuan Province, Sichuan Academy of Forestry, Chengdu 610081, China; Corresponding authors.School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, AustraliaSchool of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, AustraliaChinese Research Academy of Environmental Sciences, Beijing 100012, ChinaThe national-Local Joint Engineering Laboratory of High Efficiency and Superior-Quality Cultivation and Fruit Deep Processing Technology on Characteristic Fruit Trees, College of Plant Science, Tarim University, Alear, Xinjiang 843300, ChinaExtensive industrial and agricultural emissions of reactive nitrogen (N) have led to severe N deposition and negative impacts on biodiversity. Acer catalpifolium is a critically endangered plant mainly distributed in N deposition hotspot of China, the influence of N deposition on morphological and physiological function of this species remains unclear. Therefore, a simulation experiment was conducted, wherein A. catalpifolium seedlings were subjected to different N deposition levels (0, 30, 60, 100, 150, and 200 kg N ha-1 y-1). The effects of N deposition on the morphological, photosynthesis, and fluorescence characteristics of A. catalpifolium were investigated. Results showed that height, biomass, crown, and basal diameter of A. catalpifolium were improved by N deposition, while vegetative growth was inhibited after the N input excess 100 kg N ha-1 y-1. Leaf gas exchange indices, photosynthetic light, CO2 response curve, fluorescence parameters and chlorophyll content were also improved by N addition but impeded by high levels of N deposition. In conclusion, the responses of A. catalpifolium to different levels of N deposition suggested that low and moderate N levels provided the necessary nutrient supply for plant growth. This study has major implications for the conservation and population recovery of A. catalpifolium and biodiversity protection in certain regions.http://www.sciencedirect.com/science/article/pii/S2351989423000665Acer catalpifoliumEndangered speciesMorphological characteristicsPhotosynthetic capacityNitrogen deposition |
spellingShingle | Yuyang Zhang Xiaoyu Cheng Zhipeng Sha Wenbao Ma Buddhi Dayananda Brendan Fu Shuang Li Ruiheng Lyu Morphological and physiological responses of critically endangered Acer catalpifolium to nitrogen deposition levels Global Ecology and Conservation Acer catalpifolium Endangered species Morphological characteristics Photosynthetic capacity Nitrogen deposition |
title | Morphological and physiological responses of critically endangered Acer catalpifolium to nitrogen deposition levels |
title_full | Morphological and physiological responses of critically endangered Acer catalpifolium to nitrogen deposition levels |
title_fullStr | Morphological and physiological responses of critically endangered Acer catalpifolium to nitrogen deposition levels |
title_full_unstemmed | Morphological and physiological responses of critically endangered Acer catalpifolium to nitrogen deposition levels |
title_short | Morphological and physiological responses of critically endangered Acer catalpifolium to nitrogen deposition levels |
title_sort | morphological and physiological responses of critically endangered acer catalpifolium to nitrogen deposition levels |
topic | Acer catalpifolium Endangered species Morphological characteristics Photosynthetic capacity Nitrogen deposition |
url | http://www.sciencedirect.com/science/article/pii/S2351989423000665 |
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