葡萄不同栽培方式的叶幕微气候、光合作用和水分生理效应

Effects of Grapevine Training Systems on Canopy Microclimate,Net Photosynthesis and Transpiration

利用不同栽培方式对叶幕结构的调节,可以创造出差异很大的叶幕光热微气候模式。本实验证明了栽培方式对叶幕微气候调控的充分有效性。并建立了叶幕光能截留与群体光合和蒸腾速率的相关数学模型。

The influences of five different training systems (U、 V、 H、 T、△ shapes) on can-opy microclimate ( light, temperature and water) and the effects of the canopy microclimate on canopy net photosynthetic and transpiration rate were studied in Beijing area. The results indicated that, by manipulating canopy structures through management of the training systems, a series of canopy microclimate models with remarkable differ-ences were established, showing the full efficiency of training system management in regu-lating canopy microclimate and the appreciable potentiality for exploiting the ecological re-sources by improving training systems of vineyards. Positive linear relationships between canopy microclimate and canopy net photosynthetic and transpiration rate were estab-lished.