Abstract
A study on diversity, composition and quantitative analysis of dominant tree species was carried out in twelve different sites varying from 1700 m to 2800 m above msl of District Chamba, Himachal Pradesh. Selected sites favoured most of the forests on North-western aspect and were different in their ecoclimatic and phytogeographical features. Overall diversity of tree species in their number, varied from 4 to 12. Forests having high basal area, canopy cover and average tree height were mostly dominated by the conifers, comparatively with less disturbance. The sites with low basal area supported mixture of broadleaved with coniferous species, with high level of degradation. Ban oak (Quercus leucotrichophora) is heavily lopped as winter fodder, fuel wood, to prepare agricultural implements and for the preparation of coal. It is observed that species diversity and density decrease with increasing basal area. Species richness, Hill diversity indices (N1 and N2), Simpson’s (l) and Shannon’s diversity indices (H’) are reported maximum for the sites, dominated by mixed coniferous broadleaved forests. The minimum diversity value is observed in the localities that are occupied by pure conifer stands. The present study reflects that the sites possessing maximum diversity are under high level of disturbance and needs priority for conservation measures.
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Claims 10
Claim · model-written summary
Tree species richness varied from 4 to 12 among Chamba sites.
Verbatim
e0“Overall diversity of tree species in their number, varied from 4 to 12.”
e1“District Chamba, Himachal Pradesh”
Claim · model-written summary
High-basal-area forests with high canopy cover and average tree height were mostly conifer dominated and less disturbed.
Verbatim
e0“Forests having high basal area, canopy cover and average tree height were mostly dominated by the conifers, comparatively with less disturbance.”
e1“District Chamba, Himachal Pradesh”
Claim · model-written summary
Low-basal-area sites contained mixed broadleaved and coniferous species and showed high degradation.
- Taxon
- broadleaved with coniferous speciese0
- Outcome
- mixture of broadleaved with coniferous speciese0
- Qualifier
- high level of degradatione0
- Setting
- sites with low basal areae0
Not reportedDirection
Verbatim
e0“The sites with low basal area supported mixture of broadleaved with coniferous species, with high level of degradation.”
Claim · model-written summary
Ban oak was heavily lopped for fodder, fuel, implements and coal.
- Taxon
- Quercus leucotrichophora
.jpg?width=60)
Quercus leucotrichophorae0 - Outcome
- heavily loppede0
- Qualifier
- winter fodder, fuel wood, to prepare agricultural implements and for the preparation of coale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Ban oak (Quercus leucotrichophora) is heavily lopped as winter fodder, fuel wood, to prepare agricultural implements and for the preparation of coal.”
Claim · model-written summary
Tree species diversity decreased as basal area increased.
Verbatim
e0“species diversity and density decrease with increasing basal area.”
e1“diversity of tree species”
Claim · model-written summary
Tree density decreased as basal area increased.
Verbatim
e0“species diversity and density decrease with increasing basal area.”
e1“diversity of tree species”
Claim · model-written summary
Species richness and multiple diversity indices were maximal in mixed coniferous broadleaved forest sites.
Verbatim
e0“Species richness, Hill diversity indices (N1 and N2), Simpson’s (l) and Shannon’s diversity indices (H’) are reported maximum for the sites, dominated by mixed coniferous broadleaved forests.”
Claim · model-written summary
Pure conifer stands had minimum diversity.
Verbatim
e0“The minimum diversity value is observed in the localities that are occupied by pure conifer stands.”
Claim · model-written summary
Sites with maximum tree diversity were highly disturbed.
Not reportedDirection
Verbatim
e0“the sites possessing maximum diversity are under high level of disturbance”
e1“diversity of tree species”
Claim · model-written summary
The authors recommended conservation priority for highly disturbed high-diversity sites.
Verbatim
e0“the sites possessing maximum diversity are under high level of disturbance and needs priority for conservation measures.”
e1“diversity of tree species”