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FOREST RESOURCES WANAGEMENT ›› 2018›› Issue (3): 65-70.doi: 10.13466/j.cnki.lyzygl.2018.03.012

• Scientific Research • Previous Articles     Next Articles

Study on 3D Visual Simulation Methods for Pinus yunnanensis under Different Degrees of Insect Pest

LI Xiaoyao(), RUAN Fangfang, LIU Xusheng, YU Linfeng, LIN Qinan, HUANG Huaguo()   

  1. The Key Laboratory for Silviculture and Conservation,College of Forestry,Beijing Forestry University,Beijing 100083,China
  • Received:2018-03-19 Revised:2018-06-07 Online:2018-06-28 Published:2020-09-20
  • Contact: HUANG Huaguo E-mail:631502870@qq.com;huaguo_huang@bjfu.edu.cn

Abstract:

This study takes Pinus yunnanensis stands under different pest damages as research objects,and presents a new method to calculate the RGB values of leaf color based on the spectroscopic data.Different degrees of damaged stands are visually simulated and comparatively analysed via the Stand Visualization System(SVS) and SketchUp(SU).The result suggests:(1)The spectroscopic data could simulate the color changes under different pest damages and photoenvironment.(2)SVS is not flexible enough to simulate the unique tree form and the pest’s vertical distribution characters of Pinus yunnanensis.(3)SU is more flexible to simulate the stands under different damage degrees from tree to landscape.(4)Google Earth can be used to display geospatial features of stand damage.

Key words: Pinus yunnanensis, insect pest, spectral measurement, stand visualization, Google Earth

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