Significance of Intra Annual Fluctuations in Some Selected Conifers From a Dry Temperate Area (Kalam Forest Division), Khyber Pakhtunkhwa, Pakistan: A Dendrochronological Assessment

Muhammad, Sandra Hi; Tayyab, Muhammad Noaman; AKRAM, N.; MALIK, S.M.; Awan, Muhammad Umer Farooq; Khan, Zaheer-Ud-Din; HASNAIN, M.; ZAHID, M.; RASOOL, K.; KHAIRDIN, A.

doi:10.15666/aeer/1906_44034419

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the present study, Kalam Forest (dry temperate area), located in the high altitude North-Western part of Pakistan in the Hindu-Kush region was selected (figure 1). The site is geographically important since it is located at the junction of three mountainous (Hindu-Kush, Himalaya and Karakoram) areas with alpine peaks varying in elevation from 1900 to 4600 m. The climate of the study area shows great variability as monsoon is dominant during summer while winter nourishes these mountains with snowfall (Hussain 2014, Muhammad et al 2021. According to climate data, the mean monthly maximum temperature observed is 11.9 °C for July.…”

Section: Study Sitementioning

confidence: 99%

“…Pindrow and T. baccata are more vulnerable to climate changes (Thapa et al 2013, Yousaf et al 2022. These two species in this temperate forest are dominant (Muhammad et al 2021), having rapid growth and according to recent studies these species have potential sensitivity for dendroclimatological studies (Thapa et al 2013, Shaheen et al 2015, Koc et al 2018, Ullah et al 2022. However, little is known on the relationship between climate and growth for these two species in the study site, we explored this correlation with regional temperature and precipitation variability to assess their potential for climate reconstruction.…”

Section: Introductionmentioning

confidence: 98%

“…With the help of cross-dating, correlation among the samples, best and least correlated samples with master series to find exact calendar year of ring formation can be determined. In a general way, it is considered that higher elevations with high rainfall, running streams and deep moist soils decrease cross-dating while lower elevations where rainfall is low, sandstone and limestone bed rock under shallow soils steep slopes high ridges and shadow sides of mountains are favorable to cross-dating (Douglass 1941, Muhammad et al 2021.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Climatically induced anomalies in tree-ring structure of Abies pindrow (Royal ex D. Don) and Taxus baccata (L.) growing in Hindu-Kush mountainous region of Pakistan

Tayyab

Muhammad

Nawaz

et al. 2023

Environ. Res. Commun.

View full text Add to dashboard Cite

Dendroclimatic potential from Abies pindrow Royal ex D. Don. (fir) and Taxus baccata L. (yew) was investigated by developing four different types of tree-ring width chronologies (by ARSTAN program) in a mixed broadleaf forest of Kalam, KP, Pakistan. Firstly, measured tree-ring width series were cross-dated and identified the best and least (cross-matched with master plot) samples with the most applied Skeleton Plot Model (SPM) method alongside checking the quality through statistical program (COFECHA). Tree-ring attributes (age, growth rate and earlywood and latewood) were also measured with maximum age (677 years) was observed in fir plant and maximum growth rate (6.096 mm/year) in yew plant with clear demarcations of earlywood and latewood formation. Yew trees were observed to be more sensitive species towards climatic variations (expressed population signal = 0.856, mean sensitivity = 0.321 and signal to noise ratio = 3.214) while fir trees were comparatively less affected by climatic alterations of the study site (expressed population signal = 0.852, mean sensitivity = 0.314 and signal to noise ratio = 2.453). Correlation between tree-ring series of T. baccata with the master series was found to be more significant as compared to A. pindrow after developing series plots of both the species by using package dplR in R. Potential ecological and anatomical explanations for these results were also discussed. Sensitivity of samples showed good climatic signals which are valuable for dendroclimatic growth response investigations leading to reconstruction of past climate as well as possible future climate predictions.

show abstract

Section: Study Sitementioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Climatically induced anomalies in tree-ring structure of Abies pindrow (Royal ex D. Don) and Taxus baccata (L.) growing in Hindu-Kush mountainous region of Pakistan

Tayyab

Muhammad

Nawaz

et al. 2023

Environ. Res. Commun.

View full text Add to dashboard Cite

show abstract

Climatic drivers and tree growth in a key production species: The case of Cryptomeria japonica (Thunb. ex L.f.) D.Don in the Azores archipelago

Pavão,

Brunner,

Resendes

et al. 2024

Dendrochronologia

View full text Add to dashboard Cite

Growth response of four dominant conifer species in moist temperate region of Pakistan (Ayubia National Park)

ALI

MUHAMMAD

NAWAZ

et al. 2022

Not Bot Horti Agrobo

View full text Add to dashboard Cite

Dendrochronological potential of conifers from Ayubia National Park, Pakistan was determined. A total of four conifer species (Abies pindrow (Royle ex D. Don), Cedrus deodara (Roxb. ex D. Don), Pinus wallichiana A.B. Jacks. and Taxus baccata L.) were studied from different elevations. Comparative analysis of DBH-growth rate and DBH-age were performed among the species with maximum age showed by A. pindrow of 456 years with 0.01 cm/year growth rate. P. wallichiana was found to be fast growing with 0.05 cm/year growth among other species while C. deodara trees were having the strongest correlation between their age and DBH values (R2= 0.9225). Quality of cross dating and accuracy of tree ring measurements was checked by COFECHA. Mean sensitivity of all species ranges from 0.265 to 0.328 with auto-correlations range from 0.562 to 0.712 which specified the dendrochronological significance of these conifers. ARSTAN program was used for autoregressive modeling to remove any possible variance other than climatic disturbance and to standardize the tree ring chronologies. Tree-ring variations were evident among all the cores possessing distinct wide and narrow fluctuations of ring growth with A. pindrow (Avg. mean ring width = 1.46 mm) and T. baccata (Avg. mean ring width = 1.80 mm). All the conifer species showed good climatic signals in their tree ring measurements and are valuable for the dendroclimatic growth response investigations.

show abstract

Significance of Intra Annual Fluctuations in Some Selected Conifers From a Dry Temperate Area (Kalam Forest Division), Khyber Pakhtunkhwa, Pakistan: A Dendrochronological Assessment

Cited by 3 publications

References 0 publications

Climatically induced anomalies in tree-ring structure of Abies pindrow (Royal ex D. Don) and Taxus baccata (L.) growing in Hindu-Kush mountainous region of Pakistan

Climatically induced anomalies in tree-ring structure of Abies pindrow (Royal ex D. Don) and Taxus baccata (L.) growing in Hindu-Kush mountainous region of Pakistan

Climatic drivers and tree growth in a key production species: The case of Cryptomeria japonica (Thunb. ex L.f.) D.Don in the Azores archipelago

Growth response of four dominant conifer species in moist temperate region of Pakistan (Ayubia National Park)

Contact Info

Product

Resources

About