Earticle

초록

영어

Cyathea gigantea is a tree fern distributed throughout humid tropical regions of northeast India and other parts of the country. However, wild populations of this species are largely affected by various natural and anthropogenic activities. Therefore, an attempt was made to study the population structure and regeneration status of C. gigantea in and around greater Itanagar area of Papum Pare district, Arunachal Pradesh. Altogether 45 patches, ranging from 19.63 to 260 m2 of area, were randomly sampled to study population structure and regeneration status of the species. Population study showed highest number of youngs in the height class of 0.50-0.75 m while, immatures were recorded highest in the height class of 2.0 to 2.5 m. Majority of the matures belonged to 6-9 m height class while it was recorded maximum in the diameter class of 10-15 cm. Average density of C. gigantea was 0.07 individuals ha-1 which varied greatly among different patches with a range of 2 to 14. Significant correlations were found between patch size and density of youngs, immatures, matures and total density. Maximum concentration of youngs was observed in patch size 60-140 m2, while for immatures, it was highest in patch size 20-160 m2. Similarly, highest concentration of matures was observed in patch size 20-80 m2 and 80-180 m2. Population structure of the total population exhibited inverted pyramid shaped distribution. Population structure consisting of youngs, immatures, matures showed that around 60% patches lack of regenerating individuals which depict very poor natural regeneration of the species. Effective conservation strategies are therefore to be formulated to save C. gigantea from the threat of extinction in near future.

목차

Abstract
 Introduction
 Materials and Methods
  Study area
  Population structure
  Density
  Patch size and population structure
 Results
  Density
  Patch size and population density
  Population structure
  Regeneration status
 Discussion
 Conclusion
 References

키워드

저자

• Ashish Paul [ Department of Botany, Rajiv Gandhi University, Rono Hills, Doimukh - 791112, Arunachal Pradesh, India ] Corresponding author
• Sonal Bhattacharjee [ Alternative Fuels and Raw Materials, ACC Limited, Coimbatore, Madukkarai - 641105, Tamil Nadu, India ]
• Baharul Islam Choudhury [ Department of Biology, Concordia University, Montreal, Sherbrooke Street West - 7461, Quebec H4B 1R6, Canada ]
• Mohamed Latif Khan [ Department of Botany, Dr. Hari Singh Gour Central University, Sagar - 470003, Madhya Pradesh, India ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634