A report of Siwalik forest around Letang Raja-Rani wetland, Morang, eastern Nepal

Authors

  • Momita Chettry Department of Botany, Post Graduate Campus, Tribhuvan University, Biratnagar, Nepal
  • Rijan Ojha Department of Botany, Post Graduate Campus, Tribhuvan University, Biratnagar, Nepal
  • Bhabindra Niroula Department of Botany, Post Graduate Campus, Tribhuvan University, Biratnagar, Nepal

DOI:

https://doi.org/10.3126/on.v19i1.41232

Keywords:

Girth class, phytosociology, Shorea robusta, soil characteristics

Abstract

Species composition, phytosociological status and soil characteristics of Siwalik forest occurring around Raja-Rani wetland, Letang municipality, eastern Nepal was studied.  A total of 47 tree species belonging to 40 genera and 26 families were reported. Dominant and co-dominant trees were Shorea robusta (IVI=133.4) and Schima wallichii (IVI=70.6), respectively. In the forest total tree density, basal cover area, seedling density, fallen dead density and dead standing density were 378.4 trees ha-1, 163.7 m2 ha-1, 105250 individual ha-1, 4 trees ha-1 and 1.6 trees ha-1, respectively. Irregular girth class distribution and high stump density (136.8 tree ha-1) denote disturbance. Soil physicochemical characteristics were: acidic soil (pH 4.8), moisture (12.5%), water holding capacity (50.05%), bulk density (1.17 g cm-3), porosity (0.55%), humus (8.6%), organic carbon (0.52%), nitrogen (0.1%), phosphorus (33 kg ha-1), and potassium (300 kg ha-1). Regulating human encroachment to ensure natural regeneration of species to maintain the viability of the Letang Raja-Rani wetland site and integrity of the local ecosystem is strongly recommended.

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Published

2021-12-14

How to Cite

Chettry, M., Ojha, R., & Niroula, B. (2021). A report of Siwalik forest around Letang Raja-Rani wetland, Morang, eastern Nepal. Our Nature, 19(1), 37–45. https://doi.org/10.3126/on.v19i1.41232

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