- 期刊
Community structure and regeneration status of tree species in Eastern Himalaya: A case study from Neora Valley National Park, West Bengal, India
摘要
The phytosociological attributes of temperate forests were investigated in the Upper Range, Neora Valley National Park (NVNP), Eastern Himalaya. The area was grouped into three altitudinal zones viz., lower, middle and upper temperate and tree species were sampled at three life stages (seedlings, saplings and mature trees). The average species richness of trees, saplings and seedlings per forest stands was 15.67 ± 4.04, 14.0 ± 3.61 and 14.67 ± 1.53 respectively which reflects a medium diversity status. The mean density of seedlings (32278.6 ± 3713.13 ha^(-1)) ＞ saplings (840 ± 141.07 ha^(-1)) ＞ trees (248.5 ± 22.79 ha^(-1)). Basal area ranged from 9.36 m^2 ha^(-1) to 29.95 m^2 ha^(-1) for trees, from 1.34 m^2 ha^(-1) to 2.07 m^2 ha^(-1) saplings and from 1.92 m^2 ha^(-1) to 5.75 m^2 ha^(-1) for seedlings at different study sites. It was observed that majority of the tree species at all life stage showed contiguous distribution pattern. Good regeneration status was recorded for maximum species at all the sites. Density-diameter distribution exhibited decrease in tree densities towards higher DBH classes. The present study has provided a baseline data for the long term monitoring of tree communities in the area that will help to assess the effect of present ecological consequences of ongoing and future climate changes.
參考文獻
延伸閱讀
- Chang, L. W., Hwong, J. L., Chiu, S. T., Wang, H. H., Yang, K. C., Chang, H. Y., & Hsieh, C. F. (2010). Species Composition, Size-Class Structure, and Diversity of the Lienhuachih Forest Dynamics Plot in a Subtropical Evergreen Broad-Leaved Forest in Central Taiwan. 臺灣林業科學, 25(1), 81-95. https://doi.org/10.7075/TJFS.201003.0081
- SAHU, S. C., PANI, A. K., MOHANTA, M. R., & KUMAR, J. (2019). Tree species diversity, distribution and soil nutrient status along altitudinal gradients in Saptasajya hill range, Eastern Ghats, India. TAIWANIA, 64(1), 28-38. https://doi.org/10.6165/tai.2019.64.28
- Le, D. T. N., Thinh, N. V., Dung, N. T., & Mitlöhner, R. (2016). Effect of Disturbance Regimes on Spatial Patterns of Tree Species in Three Sites in a Tropical Evergreen Forest in Vietnam. International Journal of Forestry Research, 2016(), 42-57. https://doi.org/10.1155/2016/4903749
- Reddy, C. S., Pattanaik, C., Mohapatra, A., & Biswal, A. K. (2007). Phytosociological Observations on Tree Diversity of Tropical Forest of Similipal Biosphere Reserve, Orissa, India. TAIWANIA, 52(4), 352-359. https://doi.org/10.6165/tai.2007.52(4).352
- 郭耀綸、張勵婉、林易養、余尚鈺（2020）。Relationships of Tree Species Associations with the Topography, Water Availability, and Species Drought Tolerance in the Lienhuachih Forest of Central Taiwan。臺灣林業科學，35(2)，123-142。https://www.airitilibrary.com/Article/Detail?DocID=10264469-202006-202009010024-202009010024-123-142