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由于建筑及植物配置形成的区域小气候会导致同种植物长势的差异性,为研究不同小气候环境中月季光合能力的差异性,现以月季(Rosa chinensis)为研究对象,以阳光下样地为对照,分析建筑楼前、建筑楼后和树荫下3个样地与光下样地内的土壤环境、大气环境的差异性,研究了不同小气候环境中月季光合生理指标差异性。结果表明:对比阳光下样地,树荫下与建筑楼后样地的光照强度、环境温度均降低,空气湿度均增大,月季的净光合速率、蒸腾速率均下降,气孔数目均减少,楼前所测结果均相反;楼后、楼前样地的二氧化碳浓度均下降,月季气孔导度及净光合速率均降低,楼前样地所测数值均相反。通过研究月季光合生理指标对不同小气候环境的差异响应为其栽培地点的选择提供了参考。
Because the regional microclimate formed by architecture and plant configuration can lead to the differences in the growth of the same plants, in order to study the variability of photosynthetic capacity in different microclimate environments, Rosa chinensis is taken as the research object and the sunlight sample is used as the control The differences of soil environment and atmosphere between the three plots under the building and the shade and the shade were analyzed. The differences of the photosynthetic physiological indices in different microclimate environments were studied. The results showed that under the sunlight, the light intensity, ambient temperature and air humidity both increased in the shades and the buildings behind the building, the net photosynthetic rate and transpiration rate of rose decreased, and the number of stomata decreased Before the test results were reversed; after the building, the carbon dioxide concentration in front of plots declined, stomatal conductance and net photosynthetic rate were reduced, the plots before the measured values are the opposite. Through the study of photosynthetic physiological indicators of the different microclimate differences in response to the selection of the cultivation site for reference.