Spatial distribution of needle bright disease ofPinus sylvestris var.mongolica

Li Pengfei; Zhang Ximing; Hui Enxian; Liu Zhifang; Ge Yuxiang; Wang Jun; Wang Daojun; Wu Changyou

doi:10.1007/BF02912332

Journal of Forestry Research ›› 1998, Vol. 9 ›› Issue (4) : 264 -268. DOI: 10.1007/BF02912332

Article

Spatial distribution of needle bright disease ofPinus sylvestris var.mongolica

Author information +

History +

PDF

Abstract

The spatial distribution pattern of needle bright disease was mathematically studied. The results showed that it is tally with negative binomial distribution. The infected area and damaged amount can be forecasted with this spatial distribution pattern. Through the study on probability distribution of spatial points for single tree, the method and equations for calculation of the disease index of whole forest belt were determined.

Cite this article

Download citation ▾

Li Pengfei, Zhang Ximing, Hui Enxian, Liu Zhifang, Ge Yuxiang, Wang Jun, Wang Daojun, Wu Changyou. Spatial distribution of needle bright disease ofPinus sylvestris var.mongolica. Journal of Forestry Research, 1998, 9(4): 264-268 DOI:10.1007/BF02912332