Effects of CO2 in interaction with temperature and soil fertility on the foliar phenology of alder, birch, and maple seedlings
Effects of CO2 in interaction with temperature and soil fertility on the foliar phenology of alder, birch, and maple seedlings
复制标题
CO2 与温度和土壤肥力相互作用对桤木、桦树和枫树幼苗叶面物候的影响
作者：
T. Koike
对桤木1年生盆栽苗的叶物候进行了研究。枫木（Acer mono Maxim.），和桦木（Betula platyphylla Sukatch.）变种从5月到9月，在8个生长环境中观察了日本原（Japonica Hara）：温度（光：暗，30：20 °C和26：16 °C），CO2水平（70和36 Pa）和营养状况（高与低施肥水平）的因子组合。在高肥力下生长的幼苗总是有更多的叶子，在高CO2下，落叶比低肥力下生长的幼苗稍晚。除枫树外，高CO2加速了新梢和新叶的产生。在枫树中，高CO2只增加了领导芽的冲洗次数。桤木和桦树加速sylleptic枝和叶生产在高CO2在肥沃的条件下。桤木生长在高CO2和低肥力的新叶的生产几乎相同的正常CO2下，在高肥力。在高CO2条件下，单轴类植物冬芽形成的时间与高CO2条件下的冬芽形成的时间一致。
The foliar phenology of potted 1-year-old seedlings of alder (Alnus hirsuta Turcz.), maple (Acer mono Maxim.), and birch (Betula platyphylla Sukatch. var. japonica Hara) was observed from May to September in eight growth environments: factorial combinations of temperatures (light:dark, 30:20 °C and 26:16 °C), CO2 level (70 and 36 Pa), and nutrient regime (high versus low levels of fertilization). Seedlings grown at high fertility always had more leaves, and under high CO2, shed leaves slightly later than seedlings grown at low fertility. Except for maple, production of newly formed shoots and leaves was accelerated by high CO2. In maple, high CO2 only increased the number of flushes of the leader shoot. Alder and birch accelerated sylleptic shoot and leaf production at high CO2 in fertile conditions. The production of new leaves by alder grown at high CO2 and low fertility was almost the same as that grown under normal CO2, at high fertility. At high CO2, the timing of winter bud formation of monopodial a...