The Physiological Process And Mechanism Of Vine's Leaf-air Interface In Simulating Water And Light Conditions

The process and mechanism of water metabolic and photosynthesis are the theoretical basic and technology auspice in the choice of water saving drought-resistant plant and right site type distribution for vegetation recovery in the arid and barren site conditions. Contraposing the problem of lacking study of vine and its correlative physiological ecology, with CIRAS-2 portable photosynthesis system made in PPS corporation of England, the response characteristics to light intensity and diurnal change of gas exchange parameters of Parthenocissus quinquefolia, Parthenocissus semicordata, Euonymus fortunei, E.f.var.minimus Rhed., Wisteria sinensis, Lonicera japonica var. were mensurated under different soil moisture conditions. It discussed the response process and adaptive mechanism of the physiological action such as photosynthesis and water metabolic etc on water and light stress,confirmed the quantitative relation of physiological parameters such as photosynthesis rate, transpiration rate and water use efficiency with soil moisture and Photosynthetic Active Radiation. The main results are as following:(1) The process of photosynthesis diurnal change and the corresponding mechanism of soil moistureThe diurnal change rule of the process of photosynthetic physiological of different trees has the connection with the characteristics of trees and environmental genes.,among these factors,the soil moisture was the most important factors in environmental factors. The styles of diurnal change were different respectively. Euonymus fortunei and Wisteria sinensis took on double...