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苹果树冠受害螨危害后,被害程度与螨口密度有关。本文研究了在不同螨口密度下苹果树冠被害状的光谱特性,并利用此来估计螨口密度。初步建立了一系列预测式如下。 1.利用Ⅰ波段(500—600nm)的预测式
After the damage of apple tree canopy mite damage, the degree of damage is related to mite mouth density. In this paper, we studied the spectral characteristics of apple tree crowns at different mite densities and used it to estimate mite population density. A preliminary set of predictions are as follows. 1. The use of Ⅰ-band (500-600nm) prediction