SIGNIFICANCE OF INTRA ANNUAL FLUCTUATIONS IN SOME SELECTED CONIFERS FROM A DRY TEMPERATE AREA (KALAM FOREST DIVISION), KHYBER PAKHTUNKHWA, PAKISTAN: A DENDROCHRONOLOGICAL ASSESSMENT

被引：4

作者：

Muhammad, S. ^{[1
]}

Tayyab, M. ^{[1
]}

Akram, N. ^{[1
]}

Malik, S. M. ^{[1
]}

Awan, U. F. ^{[1
]}

Khan, Z. ^{[1
]}

Hasnain, M. ^{[1
]}

Zahid, M. ^{[1
]}

Rasool, K. ^{[1
]}

KhairDin, A. ^{[1
]}

机构：

[1] Govt Coll Univ, Dept Bot, Dendrochronol Lab, Lahore 54000, Pakistan

来源：

APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH | 2021年 / 19卷 / 06期

关键词：

skeleton plot; Abies pindrow; Cedrus deodara; Pinus roxburghii; Taxus baccata; TREE-RING CHRONOLOGIES; PINE FORESTS; AGE; RANGE; BOISS;

D O I：

10.15666/aeer/1906_44034419

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Dendrochronological potential of some gymnosperms was determined by dividing a study site into 9 stands. 76 samples of Abies pindrow with maximum age of 698 years having 149.3 cm diameter, 23 samples of Taxus baccata with maximum age of 479 years having 137.2 cm diameter, 4 samples of Pinus roxburghii with maximum age of 218 years having 19.2 inches diameter and 2 samples of Cedrus deodara were obtained. All species were crossdated successfully by Skeleton Plot Model. Among them, mean growth of A. pindrow was 0.05-0.27 cm per year while for T. baccata it was 0.15-0.24 cm per year. Moreover, regression analysis between age and dbh was (y = 0.0847x + 4.0756), (R-2 = 0.921) in 3rd stand and (y = 11.108x-41.174), (R-2 = 0.8424) in 2nd stand of A. pindrow and T. baccata respectively. The maximum value observed was in the 3rd stand of T. baccata species which showed better correlation as compared to the rest of the stands. Strong correlation was also observed between TRW and difference of earlywood and latewood cell mass in all species. A. pindrow showed maximum value as (y = 1.1397x + 0.1873), (R-2 = 0.9972).

引用

页码：4403 / 4419

页数：17

共 2 条

[1] Climatic significance of tree-ring width and intra-annual density fluctuations in Pinus pinea from a dry Mediterranean area in Portugal
Campelo, Filipe
Nabais, Cristina
Freitas, Helena
Gutierrez, Emilia
ANNALS OF FOREST SCIENCE, 2007, 64 (02) : 229 - 238
[2] Climatic significance of tree-ring width and intra-annual density fluctuations in Pinus pinea from a dry Mediterranean area in PortugalSignification climatique de la largeur des cernes et des fluctuations intra annuelles de la densité chez Pinus pinea dans une région méditerranéenne sèche du Portugal
Filipe Campelo
Cristina Nabais
Helena Freitas
Emilia Gutiérrez
Annals of Forest Science, 2007, 64 (2) : 229 - 238

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