Unveiling the Dendroclimatic Potential of Blue Pine (Pinus wallichiana) Growing in Shangla, Khyber Pakhtunkhwa
Tanvir Hussain*, Zahid Rauf, Mansoor Ali Khan and Khalid Hussain
Pakistan Forest Institute, Peshawar -25130, Khyber Pakhtunkhwa, Pakistan.
*Correspondence | Tanvir Hussain, Pakistan Forest Institute, Peshawar -25130, Khyber Pakhtunkhwa, Pakistan; Email: awt@pfi.gov.pk
Figure 1:
Shangla meteorological data’s Climatogram for the Years 1921–2021.
Table 2:
Tree ring chronology from Shangla Forest Area using Cofecha statistics.
Figure 2:
The Shangla forest area, Swat, regional tree ring width chronology from 1921 to 2021. The sample depth is shown by the gray region.
Figure 4:
Analysis of correlation function for Kail at Shangla; correlation coefficient (r) between monthly meteorological variable and TRW for the current year (capital letters) and the previous year (lower case). Stick bars represent statistically significant associations (p<0.05) (Sohar et al., 2017). The common era (1921-2021) was used to compute correlations between June of the year before tree-ring growth and October of the current growth year (Ahmed et al., 2010).
Figure 3:
Blue pine growing in Shangla, KPK, from 1921 to 2021: Positive and negative pointer and event years.