克拉玛依市居住区15种主要园林树木生理生态特性与生态效益研究

目的]通过对不同树种各项生理生态指标进行研究，为绿地种植规划、树种选择等提供理论依据。方法]以克拉玛依市居住区15种主要园林绿化树种为研究对象，用LAI-2000灌层分析仪和英国汉莎CIRAS-26400型PPsystem便携式光合仪测定研究了叶面积指数、光合生理生态特性，并在此测定基础上对其固碳释氧、降温增湿效应进行了量化研究。结果]乔木树种中的大叶白蜡、小叶白蜡、馒头柳，以及灌木树种榆叶梅、紫丁香不仅单株绿量较大，而且固碳释氧量与增湿降温量也相对较高。结论]大叶白蜡、小叶白蜡、馒头柳、榆叶梅、紫丁香等园林树木应是生态绿化建设中的首选树种。

Analysis on Ecophysiological Characteristics and Ecological Benefits of Fifteen Main Garden Tree Species of ReSidential District in Karamay

Objective ] Ecophysiological characteristics of fifteen main garden tree species were studied in order to provide evaluation princi- ples of green planning designs, choice of tree species. Method ] Leaf Area Index and the characteristics of photosynthesis eeo- physiological of fifteen main garden tree species on residential area of Karamay were researched by LAI - 2000 Canopy analyzer and CIRAS - 2 6400 Porta- ble Photosynthesis System. On the basis of the analysis, carbon fixation and oxygen release and cooling and humidification ability were quanti- tative researched. Result] The arbor as Fraxinus rhynchophylla, Fraxlnus sogdiana Bunge, Salix matsudana cv. Umbraculifera Rehd. and bush as Prunus triloba Lind] ,＇ Syringa oblate have not only more green quantities but also much more carbon fixation and oxygen release and cool- ing and humidification ability. Conclusion]Those garden trees should be preferred species suitable in the construction of ecological greening.