论文部分内容阅读
应用相对叶形法提出了一种新的部分阔叶树叶面简易测算方法,其计算公式为:S=1/2(W_(0.122L)+W_(0.7L))L。该公式对洋玉兰、夹竹桃、女贞和海桐单片叶面积估计的相对均方差分别为2.05%、1.91%、3.22%和2.45%;总的相对误差分别为-1.03%、+0.05、+2.73和1.03%。
A new method for estimating the leaf surface of some broadleaf leaves is proposed by using the relative leaf method. The calculation formula is: S = 1/2 (W 0.122L + W 0.7L) L. The relative mean square deviations of single leaf area of Magnolia officinalis, Oleander, Privet and Pittosporum were 2.05%, 1.91%, 3.22% and 2.45%, respectively. The relative errors were -1.03% and + 0.05 respectively , + 2.73 and 1.03%.