Study on the Ecological Functions of Sixty-five Garden Species in Wuhan City, China

ZHENG Peng; SHI Hong-Wen; DENG Hong-Bing; LIAO Jian-Xiong

doi:10.3724/SP.J.1142.2012.50468

Plant Science Journal > 2012 > 30(5): 468-475. > DOI: 10.3724/SP.J.1142.2012.50468 CSTR: 32231.14.SP.J.1142.2012.50468

ZHENG Peng, SHI Hong-Wen, DENG Hong-Bing, LIAO Jian-Xiong. Study on the Ecological Functions of Sixty-five Garden Species in Wuhan City, China[J]. Plant Science Journal, 2012, 30(5): 468-475. DOI: 10.3724/SP.J.1142.2012.50468

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Study on the Ecological Functions of Sixty-five Garden Species in Wuhan City, China

1.
State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences, Beijing 100085, China
2. Key Laboratory of Aquatic Botany and Watershed Ecology,Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
3. Wuhan Landscape Architecture Institute, Wuhan 430081, China
4. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

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Received Date: April 04, 2012
Revised Date: May 21, 2012
Published Date: October 29, 2012

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Abstract

Abstract

Garden species are the main component in the construction of ecological garden cities.Quantitative studies on their ecological functions provide an important basis for selection,configuration,and management of garden species.In this study,we estimated water use efficiency (WUE),and the capacities of carbon fixation (W_CO₂) and oxygen release (W_O₂),temperature reduction (ΔT) and dust detention (W_dust) of 65 garden species in Wuhan City by measuring the diurnal changes of photosynthesis and transpiration,and the crown width and leaf area index.The results showed there were significant differences in WUE,W_CO₂,W_O₂,ΔT,and W_dust among species,shrubs and trees,and deciduous and evergreen species.Based on the values of these ecological functions,the species studied were divided into five functional groups: low carbon fixation and low dust detention species (26 species),high carbon fixation and high temperature reduction species (8 species),high dust detention and low temperature reduction species (9 species),low water use and high transpiration species (11 species),and high water use species (11 species).
- Garden species,
- Water use efficiency,
- Carbon fixation and oxygen release,
- Temperature reduction,
- Dust detention

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