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以常规平地栽植为对照,研究西北沙地深沟栽植葡萄在人工控水干旱胁迫条件下,根际土壤含水量变化规律及其对葡萄叶片净光合速率(Pn)、气孔导度(Cond)、胞间CO2浓度(Ci)、蒸腾速率(Tr)的影响。结果表明,随着人工控水干旱处理天数的增加,深沟栽植葡萄根际土壤含水量远高于平地栽植,且比较稳定,基本能保证葡萄叶片光合速率维持较高水平;而平地栽植方式土壤含水量显著降低,且对葡萄光合作用相关指标造成了严重影响,导致葡萄叶片光合速率显著降低。
The rhizosphere soil water content and its effect on the net photosynthetic rate (Pn), stomatal conductance (Cond), photosynthetic rate Intercellular CO2 concentration (Ci), transpiration rate (Tr) of the impact. The results showed that with the increase of days of artificial water control and drought treatment, the water content of soil in deep grooving rhizosphere soil was much higher than that in flat land, and was relatively stable. The photosynthetic rate of grape leaves could be maintained at a high level basically. However, Water content decreased significantly, and the grapes related indicators of photosynthesis caused serious impact, resulting in grape leaves significantly reduced photosynthetic rate.