大家知道叶面积的大小和植物生产力之间存在着正相关关系。叶面积无疑决定着产量的高低。研究中常用的方法有:投影照相仪法;剪碎法;量算叶的直线长短法;在纸上测定叶轮廓法。现介绍两种最常用的确定叶面积方法,进行比较鉴定的结果。 It is known that there is a positive correlation between leaf area and plant productivity. Leaf area will undoubtedly determine the level of production. Methods commonly used in the study are: projection camera method; shearing method; measuring the length of the leaf straight line method; measured leaf profile method on paper. The two most commonly used methods for determining leaf area are now described for comparison and identification.