Earticle

초록

영어

We investigated Soil respiration in Bluepine forest of western Bhutan, in relation to soil temperature, moisture content and soil pH and it was aimed at establishing variability in space and time. The Bluepine forest thrives in the typical shallow dry valleys in the inter-montane Bhutan Himalaya, which is formed by ascending wind from the valley bottom, which carries moisture from the river away to the mountain ridges. Stratified random sampling was applied and the study site was classified into top, mid, low slope and further randomized sample of n=20 from 30 m×30 m from each altitude. The overall soil respiration mean for the forest was found 2248.17 CO2 g yr-1 and it is ∼613.58 C g yr-1. The RS from three sites showed a marginal variation amongst sites, lower slope (2,309 m) was 4.64  mol m-2 s-1, mid slope (2,631 m) was 6.78  mol m-2 s-1 and top slope (3,027 m) was 6.33  mol m-2 s-1 and mean of 5.92  mol m-2 s-1, SE=0.25 for the forest. Temporal distribution and variations were observed more pronounced than in the space variation. Soil respiration was found highest during March and lowest in September. Soil temperature had almost inverse trend against soil respiration and dropped a low in February and peak in July. The moisture in the soil changed across months with precipitation and pH remained almost consistent across the period. The soil respiration and soil temperature had significant relationship R2=-0.61, p=0.027 and other variables were found insignificant. Similar relationship are reported for dry season in a tropical forest soil respiration. Soil temperature was found to have most pronounced effect on the soil respiration of the forest under study.

목차

Abstract
Introduction
Materials and Methods
Site description
Sampling and measurements
Results and Discussion
Variation among site
Variation along horizontal and vertical grids
Temporal distribution and variations
Conclusion
Acknowledgements
References

키워드

저자

• Cheten Thinley [ College of Natural Resources, Royal University of Bhutan, Lobesa Punakha 14001, Bhutan, Ugyen Wangchuck Institute for Conservation and Environment, Department of Forests and Park Services, Lamai Goempa, Bumthang 32001, Bhutan ] Corresponding author
• Baghat Suberi [ College of Natural Resources, Royal University of Bhutan, Lobesa Punakha 14001, Bhutan ]
• Rekha Chhetri [ College of Natural Resources, Royal University of Bhutan, Lobesa Punakha 14001, Bhutan ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2025

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634