Earticle

초록

영어

The long term ecological effects have been reported in natural forest ecosystem due to various anthropogenic disturbances, especially in tropics of the world. The present study was carried out in the sanctuary area of central India to assess the changes on litter biomass, litterfall pattern and soil attributes under different disturbance regimes. The study area includes three forest circles i.e., Bhoramdeo, Jamunpani and Salehwara each comprising three disturbances regimes viz., high, medium and low severity of biotic pressure. A noticeable variation and impact were recorded in different sites. The impact varies significantly from least disturbed sites to highly disturbed sites across the circle and among different disturbances level. The seasonal mean total forest floor biomass across the forest circles varied from 2.18 to 3.30 t ha-1. It was found highest under lightly disturbed site and lowest under heavily disturbed site. Total litterfall varied from 5.11 to 7.06 t ha-1 yr-1 across the forest circle. Lowest litterfall was recorded at heavily disturbed site while highest in lightly disturbed site. Annual turnover of litter varied from 69-73% and the turnover time ranged between 1.37-1.45 years. The turn over time was higher for heavily disturbed site and lower for lightly disturbed site. The heavily disturbed site of all the circle showed the sandy loam soil texture, whereas moderately and lightly disturbed site comprised of sandy loam, sandy clay loam and clay soil texture, respectively. The bulk density decreases from heavily disturbed site to lightly disturbed site and the pH of soils ranged from 5.57-6.89 across the circle. Across the circle the total soil nitrogen ranged from 0.12-0.21%, phosphorus from 10.03-24.00 kg and Potassium from 139.88-448.35 kg ha-1, respectively. Our results demonstrate that anthropogenic disturbances regime significantly influences forest floors in terms of mass, composition and dynamics along with litterfall rate and soil properties.

목차

Abstract
Introduction
Materials and Methods
Study site
Experimental design
Results
Forest floor biomass
Litterfall
Seasonal pattern of litterfall
Temporal Pattern of litterfall
Turnover of litter
Physico-chemical properties of soil
Discussion
Forest floor biomass
Litterfall
Turnover of litter
Physico-chemical properties of soil
Conclusion
Acknowledgements
References

키워드

저자

• P. R. Oraon [ Department of Silviculture and Agroforestry, Faculty of Forestry, Birsa Agriculture University, Ranchi-834006 Jharkhand, India ]
• Lalji Singh [ Indira Gandhi Krishi Vishwavidyalaya, Raipur-492012 (Chhattisgarh), India ]
• Manoj Kumar Jhariya [ Department of Farm Forestry, Sarguja University, Ambikapur-497001 (Chhattisgarh), India ] Corresponding Author

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