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[1]ZHANG Wei-qiang,GAN Xian-hua,YIN Zuo-yun,et al.Effects of SO2 Stress on Eco-physiological Characteristics of Garden Plant Seedlings[J].Research of Soil and Water Conservation,2012,19(06):247-253.

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Effects of SO₂ Stress on Eco-physiological Characteristics of Garden Plant Seedlings

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 06 Page number: 247-253 Column: Public date: 2012-12-20

Title:: Effects of SO₂ Stress on Eco-physiological Characteristics of Garden Plant Seedlings

Author(s):: ZHANG Wei-qiang, GAN Xian-hua, YIN Zuo-yun, WANG Ming-huai, ZHOU Ping, LI Zhao-qing, WEN Xiao-ying, LI Ming-shuai; Guangdong Academy of Forestry, Guangzhou 510520, China

Keywords:: garden plant seedlings; artificial climate chamber; SO₂ stress; eco-physiological characteristics; anti-pollution capacity analysis

CLC:: Q945.11

DOI:: -

Abstract:: In order to explore the resistance of 28 common garden plant species to sulfur dioxide (SO₂) pollution in Guangzhou City, 2 to 3 year-old seedlings of these species were selected and treated in artificial climate chamber. Leaf gas exchange parameters, relative chlorophyll content and relative water content of these seedlings were determined under 5.329 mg/m³ SO₂ stress, and their resistance to SO₂ pollution was comprehensively evaluated by using fuzzy subordinate function and system cluster analysis. The results indicated that the leaf net photosynthetic rate, transpiration rate, stomatal conductance, relative chlorophyll content and relative water content decreased to the different extent with regard to varieties of plants. Results from the fuzzy subordinate function and system cluster analysis showed that for the resistance of test plants to SO₂ pollution: the strongest were Osmanthus fragrans, Nerium indicun, Terminalia mantaly, Podocarpus macrophyllus, Cinnamomum camphora, Michelia chapensis, Aleurites moluccana, Alstonia scholaris, Podocarpus nagi, and Ilex rotunda; the second strongest onse were Ficus microcarpa, Ormosia pinnata, Callistemon rigidus, Brassaia actinopfnylla, and Heteropanax fragrans; the moderate ones were Bauhinia variegate, Ficus religiosa, Elaeocarpus apiculatus, Khaya senegalensis, and Dillenia turbinate; the second weakest ones were Grevillea banksii, Syzygium cumini, Bombax malabaricum, Lagerstroemia speciosa, and Dracontomelon duperreranum; the weakest ones were Melaleuca leucadendron, Chukrasia tabularis, and Koelreuteria bipinnata. The study could provide a reference for the species selection in severely acid-contaminated areas such as thermal power plants, ceramic plants, steel mills, and petrochemical plants.

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