Tree species composition and diversity in montane forests of Garhwal Himalaya in relation to environmental and soil properties

Rawat, Diwan S.; Tiwari, Priyanka; Das, Sudipta Kumar; Tiwari, J. K.

doi:10.1007/s11629-019-5761-8

Cited by 21 publications

(10 citation statements)

References 37 publications

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“…Beta diversity, which quantifies variability in community composition among sampling units (Whittaker, 1960 ), is increasingly becoming important for understanding the mechanisms of biodiversity maintenance (e.g., Baselga, 2010 ; Condit et al., 2002 ; Du et al., 2021 ). Although beta diversity patterns of plant communities in the Himalaya have received less attention than alpha diversity, previous studies indicate that topographic (e.g., slope orientation and elevation), environmental (e.g., soil properties), and anthropogenic (land use) factors are the key determinants of beta diversity patterns in the region (Paudel & Vetaas, 2014 ; Rawat et al., 2020 ). This subject should be seriously considered in future research, particularly regarding the effect of species turnover among phylogenetic relatives that share similar functional traits.…”

Section: Biogeography Of the Himalayan Floramentioning

confidence: 99%

Spatiotemporal maintenance of flora in the Himalaya biodiversity hotspot: Current knowledge and future perspectives

Wambulwa

Milne

et al. 2021

Ecology and Evolution

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Section: Biogeography Of the Himalayan Floramentioning

confidence: 99%

Spatiotemporal maintenance of flora in the Himalaya biodiversity hotspot: Current knowledge and future perspectives

Wambulwa

Milne

et al. 2021

Ecology and Evolution

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“…The species-area curves (SAC) for each study site were prepared to understand the species richness pattern with increasing number of sampling units. Ranked species abundance (RSA) curves for all the three forests were obtained using abundance data of each tree species ranked in descending order (Rawat et al, 2020). In this study, the various diversity indices viz., Dominance index, Simpson index, Shannon index, Evenness index, Brillouin diversity index, Menhinick diversity index, Margalef index, Equitability index, Fisher's alpha index, Berger-Parker index and Chao-1 index were calculated using tree abundance data of each study site (in the software PAST ver.…”

Section: Discussionmentioning

confidence: 99%

“…The species composition of Himalayan forests varies greatly due to the wide range of climatic and topographic conditions. The biodiversity in this region experienced some noticeable impacts, such as changes in species abundance and range, shifts in habitat and change in phenology (Rawat et al, 2020;Dash et al, 2021;Thakur et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Tree diversity and regeneration status in the different forest types of Kotla watershed (Uttarkashi, Uttarakhand, India)

Rana¹,

Koshal²,

Bajpai³

2022

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The present study aimed to assess the diversity and regeneration status of tree species in different forest types viz., Pinus forest (PF), Pinus-Oak mixed forest (POF) and Deodar forest (DF) of Kotla watershed (Barkot, Uttakashi, Uttarakhand). The data were collected through quadrat method and analyzed quantitatively. A total of 28 tree species, belonging to 21 families were recorded in the sampling area (3 forests 10 plots in each plot size 400 m2). Fagaceae, Pinaceae, Ericaceae, Fabaceae and Juglandaceae were the major families (in terms of number of species). The species-area curves (SACs) of PF and DF reached an asymptote while it predicted more species (din not reach asymptote) in case of POF. The resulted values of different diversity indices (i.e., Dominance, Simpson, Shannon, Evenness, Margalef, and Equitability) revealed that the POF was most diverse (in tree diversity) followed by PF and DF. The ranked species abundance (RSA) curve of POF was log normal type but geometric series type for PF and DF. The density-diameter curves (d-d curves) was reverse J-shaped for POF while in case of PF and DF, the higher densities were observed for middle DBH classes in comparison to lowest and highest DBH classes. The overall regeneration status of the forests in the area was fair (25.8% tree, 18.6% saplings and 55.6% seedlings). The present study provides a deeper understanding of tree diversity pattern and regeneration status from a pocket of IHR.

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“…Soil and vegetation are in a complex interrelationship since their togetherly development over a long period of time [8]. Soil improvises a major impact on the plant diversity of an ecosystem [9][10]. The type and rate of growth of plant species are mainly governed by mineral composition and nutrient supplying capability of the soil because plants mostly derived their nutrients from the available reserve minerals of the soil [11].…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Properties of Soil under Different Forest Types in the Western Ramganga Valley (Uttarakhand Himalaya, India)

Rawat

Das

Tiwari

et al. 2021

APRJ

Self Cite

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The physicochemical properties of soils of six forests varying in elevation (lower, middle, and upper), slope, aspects, and floristic composition viz. L1 (Oak mixed), L2 (Chir pine), M1 (Rhododendron mixed), M2 (Rhododendron mixed), U1 (Abies mixed) and U2 (Abies mixed) from Western Ramganga Valley (Chamoli, Uttarakhand Himalaya, India) were scrutinized. The composite soil samples from three depths (0–10 cm, 11–20 cm, and 21–30 cm) were collected during the different seasons and the physicochemical parameters were analyzed using standard manual and protocol. Texture, bulk density, moisture content, water holding capacity, organic matter, organic carbon, pH, nitrogen content, available phosphorus, exchangeable potassium and C:N ratio of soil samples from each forest site were analyzed and discussed. It was observed that the physical properties of soils either do not vary across the three depths (0–10 cm, 11–20 cm, and 21–30 cm) or show slight changes whereas chemical properties show notable variations comparatively. The significant variation (ANOVA, P < 0.05) was observed in the soil texture (sand, silt, and clay contents), moisture content, water holding capacity, and nitrogen content across the six forest types (study sites). The soil texture ranged between loam and sandy loam which is considered supportive for plant growth. Besides, the lower bulk density and higher soil organic carbon and organic matter with other determined parameters in the studied soils indicate that the studied six forests have sustained nutritive soils. It can be concluded from the present results that the soil physicochemical properties vary with changes in the vegetation composition (forest types) at different elevations in Western Himalaya. Further elaborative study will be done to ascertain interrelationship among the vegetation and soils.

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Tree species composition and diversity in montane forests of Garhwal Himalaya in relation to environmental and soil properties

Cited by 21 publications

References 37 publications

Spatiotemporal maintenance of flora in the Himalaya biodiversity hotspot: Current knowledge and future perspectives

Spatiotemporal maintenance of flora in the Himalaya biodiversity hotspot: Current knowledge and future perspectives

Tree diversity and regeneration status in the different forest types of Kotla watershed (Uttarkashi, Uttarakhand, India)

Physicochemical Properties of Soil under Different Forest Types in the Western Ramganga Valley (Uttarakhand Himalaya, India)

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