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采用扫描图像与Photoshop图像处理软件结合的方法研究柽柳、柠条、红砂和珍珠的叶片投影面积与叶干质量之间的关系,结果表明:柽柳、柠条和红砂叶投影面积与叶干质量呈线性相关;红砂、柽柳、柠条在生长季单位叶面积所积累的叶干质量分别为(0.0840±0.0031)、(0.0610±0.0011)、(0.0366±0.0007)g/cm2,红砂和柽柳分别是柠条的2.30和1.67倍;珍珠的叶片是多浆汁叶,形状极不规则,不能利用目前的扫描仪计算出它的投影面积;柽柳在不同环境下生长时的叶片投影面积与叶干质量的关系均为线性相关且差异不显著,表明这种线形关系不受生长环境的影响。因此,可以用叶干质量代替叶面积来研究这些荒漠植物的光合作用特性。
The relationship between the projected area of leaves and leaf mass of Tamarix, Caragana korshinkii, Rehmannia glutinosa and Pearl was studied by using the combination of scanning image and Photoshop image processing software. The results showed that: The leaf mass per unit leaf area accumulated in the growing season was (0.0840 ± 0.0031), (0.0610 ± 0.0011), (0.0366 ± 0.0007) g / cm2, Tamarisk are 2.30 and 1.67 times the Caragana; pearl leaves are multi-juice leaves, the shape is very irregular, you can not use the current scanner to calculate its projected area; Tamarix under different environments when the growth of the blade projection area and Leaf mass correlations were linearly correlated with no significant difference, indicating that this linear relationship was unaffected by the growth environment. Therefore, the photosynthetic characteristics of these desert plants can be studied using the leaf mass instead of leaf area.