哈尔滨居住区常用的12种园林植物固碳释氧能力研究

Analysis of Carbon Fixation and Oxygen Release Capacity of 12 Commonly Used Plants for the Residential Community of Harbin

[目的]研究哈尔滨居住区常用的12种园林植物固碳释氧能力。[方法]该研究采用Li-6400便携式光合测定仪,对哈尔滨居住区常用的12种植物净光合速率进行测定。[结果]整个生长季中树种单位叶面积日固碳释氧能力随季节性变化从大到小依次表现为夏季、秋季、春季。乔木单位叶面积日固碳释氧量从大到小依次排序为:榆树、银中杨、白桦、暴马丁香、旱柳;灌木中植物单位叶面积日固碳释氧量从大小到依次排序为:紫丁香、连翘、小叶丁香、水蜡、锦带花、红瑞木、鸡树条荚蒾。由于叶面积指数的不同,乔木单株植物单位面积固碳释氧能力由强到弱为:榆树、银中杨、白桦、旱柳、暴马丁香;灌木为连翘、紫丁香、锦带花、红瑞木、鸡树条荚蒾、水蜡、小叶丁香。[结论]该研究结果将为哈尔滨市居住区绿化树种的选择提供一定的理论依据。

[ Objective ] The carbon fixation and oxygen release capacity of 12 commonly used plants for residential community of Harbin were studied. [ Method] In this study, LI -6400 portable photosynthesis test system was used to observe photosynthetic rate of 12 commonly used plants for the residential community of Harbin. [ Result] The results indicated that the capacity of carbon fixation and oxygen release per unit of leaf area was in the order of summer 〉 autumn 〉 spring. The arbor＇ s order of daily carbon fixation and oxygen release per unit of leaf area was in the order of Ulmus pumila 〉 Poplus alba x P. beriliensis＇ 〉 Betula platyphyUa 〉 Syringa reticulata 〉 Salix matsudana. The shrub＇ s order of daily carbon fixation and oxygen release per unit of leaf area was in the order of Syringa oblata 〉 Forsythia suspensa 〉 Syringa microphyUa 〉 Ligustrum obtusifolium 〉 Weigela florida 〉 Comus alba 〉 Viburnum sargentii. The leaf area index of different, carbon fixation and oxygen re- lease for every square meter of arbor from strong to weak was Ulmus pumila, Poplus alba × P. beriliensis＇ , Betula platyphylla, Salix matsu- dana, Syringa reticulate. The shrub was Forsythia suspense, Syringa oblate, Weigela florida, Comus alba, Viburnum sargentii , Ligustrum ob- tusifolium, Syringa microphylla. [ Conclusion ] The result of this study was valuable to select plant for the residential community of Harbin.