• 제목/요약/키워드: Himalayas

검색결과 41건 처리시간 0.022초

Two Species of Bryoria (Lichenized Ascomycota, Parmeliaceae) from the Sino-Himalayas

  • Wang, Li-Song;Harada, Hiroshi;Koh, Young-Jin;Hur, Jae-Seoun
    • Mycobiology
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    • 제33권4호
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    • pp.173-177
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    • 2005
  • We performed a taxonomic study on two species of the genus Bryoria from the Sino-Himalayas, SW-China. B, nadvornikiana is new to China and B. furcellata is new to Yunnan and Sichuan provinces in the Sino-Himalayas. Morphology, habitat, distributions and chemistry of the two species are discussed.

Role of Agroforestry Trees in Sustaining Livelihood: A Case of Communities in Western Himalayas

  • Nagar, Bhuvnesh;Rawat, Sushma;Kumar, Munesh
    • Journal of Forest and Environmental Science
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    • 제33권2호
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    • pp.91-96
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    • 2017
  • Trees at farm are considered as one of the option to reduce poverty of smallholders by contributing to livelihood security and resilience to climate change. A perception based study was conducted to assess the cultural importance of tree species suitable for practicing agroforestry in randomly selected agroforestry-dominated villages in Alaknanda valley of Western Himalayas during 2015-16. Semi-structured questionnaire was used to collect primary data on the provisioning services of major agroforestry tree species in randomly surveyed 87 households. Based on cultural importance (CI) index value, the most suitable agroforestry tree species was Morus alba (3.32) followed by Celtis australis (3.22), Mangifera indica (3.01), Grewia optiva (2.79), Toona ciliata (2.22), Bauhinia variegata (2.08), Leucaena leucocephala (1.76) and Emblica officinalis (1.74). The preference of use has also been governed based on their indigenous knowledge. This study will also facilitate in evaluating the importance of provisioning services of agroforestry tree species in improving livelihood as well as facilitates smallholder's resilience to climate change in Western Himalayas.

Cestode Fauna of Hill-Stream Fishes in Gahwal Himalayas, India VI. Ptychobothrium nayarensis n. sp. from Barilius bola(Ham.) and Schizothorax richardsonii(Gray)

  • Malhotra, Sandeep-K.
    • Parasites, Hosts and Diseases
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    • 제21권2호
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    • pp.205-208
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    • 1983
  • Ptychebcthrium nayarensis n. sp. has been described from two hill-stream fishes, Barilius bola (Ham.) and Schizotheras rirhardsonii (Gray) at 325~750 mASL. The new species has beeen compared with close species. Taxometric evaluation of the new species has been done on available data.

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Stability analysis of a rock slope in Himalayas

  • Latha, Gali Madhavi;Garaga, Arunakumari
    • Geomechanics and Engineering
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    • 제2권2호
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    • pp.125-140
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    • 2010
  • Slope stability analysis of the right abutment of a railway bridge proposed at about 350 m above the ground level, crossing a river and connecting two huge hillocks in the Himalayas, India is presented in this paper. The site is located in a highly active seismic zone. The rock slopes are intensely jointed and the joint spacing and orientation are varying at different locations. Static slope stability of the rock slope is studied using equivalent continuum approach through the most commonly used commercial numerical tools like FLAC and SLOPE/W of GEOSTUDIO. The factor of safety for the slope under static conditions was 1.88 and it was reduced by 46% with the application of earthquake loads in pseudo-static analysis. The results obtained from the slope stability analyses confirmed the global stability of the slope. However, it is very likely that there could be possibility of wedge failures at some of the pier locations. This paper also presents the results from kinematics of right abutment slope for the wedge failure analysis based on stereographic projections. Based on the kinematics, it is recommended to flatten the slope from 50o to 43o to avoid wedge failures at all pier locations.

Smart Tourism-A Solution for Tourism Challenges in Himachal

  • Sharma, Sahil
    • Journal of Smart Tourism
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    • 제2권2호
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    • pp.21-32
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    • 2022
  • This paper shows light on the concept of smart tourism destination as a future of tourism development, especially in the context of problems associated with developing countries. This study substantiates the case of smart tourism development in mountain destinations as an affordable and needed future of the contemporary era. This conceptual study is based on secondary literature on Smart Cities, Smart Tourism Destinations, and Tourism in Himachal Pradesh. The Indian state of Himachal Pradesh has been considered as a study area to acknowledge major tourism-related challenges, especially in mountain locations. Consequently, the dots are connected between existing challenges and solutions that smart tourism holds. It turns out that for the development of mountain tourism destinations such as Himachal Pradesh in the Indian Himalayas, investments in smart infrastructure are required. By developing smart infrastructure, a new USP can be made, a supportive environment for new local businesses, new employment opportunities, enhanced tourist experience and an overall raised standard of living for locals. Considering all factors, it leads to a highly competitive tourism destination. All tourism destinations located in the Himalayan mountains show somewhat the same tourism challenges as Himachal Pradesh, India. Therefore, this paper brightens the path of destination planners towards the development agenda of smart tourism destinations and shows how smart tourism infrastructure can be deployed for better management of tourism destinations.

Nineteen new records of plant species including two new genera recorded from the Bhutan Himalayas

  • DORJI, Rinchen;PHUENTSHO, Phuentsho;DORJI, Kencho;TSHEWANG, Sangay;WANGDI, Phuntsho;TOBGAY, Kezang;GYELTSHEN, Nima;GYELTSHEN, Choki
    • 식물분류학회지
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    • 제52권3호
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    • pp.173-183
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    • 2022
  • Through the collection of herbarium specimens in Bhutan over the years, new plant species are discovered nearly annually. Thus, this paper reports two new genera and 19 new records of flowering plant species from Bhutan. The new genera include Eurycorymbus of the family Sapindaceae and Homalium of the family Salicaceae. The new records of plant species are Eranthemum erythrochilum (Acanthaceae), Hemidesmus indicus (Apocynaceae), Ilex umbellulata (Aquifoliaceae), Canarium strictum (Burseraceae), Ehretia acuminate (Boraginaceae), Vaccinium sikkimense (Ericaceae), Nothapodytes foetida (Icacinaceae), Machilus edulis (Lauraceae), Grewia asiatica (Malvaceae), Hibiscus fragrans (Malvaceae), Cipadessa baccifera (Meliaceae), Baccaurea javanica (Phyllanthaceae), Canthiumera glabra (Rubiaceae), Homalium napaulense (Salicaceae), Eurycorymbus cavaleriei (Sapindaceae), Acmella radicans (Asteraceae), Silene latifolia (Caryophyllaceae), Cleome rutidosperma (Cleomaceae), and Cuphea carthagenensis (Lythraceae). Morphological determinations of the genera and species were carried out at the National Herbarium (THIM) of the National Biodiversity Centre of Bhutan. Brief descriptions of the species, phenology, and photo plates are provided in this annotated checklist.

The first record of the rare fern Pteris griffithii (Polypodiales: Pteridaceae: Pteridoideae) in the Bhutan Himalayas

  • DORJI, Rinchen;DEMA, Sangay;NIROLA, Mani Prasad;GYELTSHEN, Choki
    • 식물분류학회지
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    • 제52권1호
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    • pp.24-28
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    • 2022
  • Pteris griffithii Hook., one of the rarest fern species on the Indian subcontinent, is reported from Bhutan for the first time. The identity of this species was confirmed through morphological determination at the National Herbarium (THIM) of the National Biodiversity Centre (NBC) of Bhutan. It was found only in one location, in Gyelpozhing in eastern Bhutan, at an elevation of 521 m a.s.l. on 10 January 2016. Given that a very limited study of this species was conducted, the knowledge baseline with regard to its distribution is poor. It is also reported that this species has not been found for several years. The species is also considered to be very rare or critically endangered in some countries; however, there are no assessments on the International Union for Conservation of Nature (IUCN) Red List for this particular species. This paper attempts to provide baseline information considering its rarity and data deficiency. This species is also reported from the adjacent neighboring Indian state of Arunachal Pradesh as very rare, and also from Myanmar; however, confirmation of its presence in China is not clear at this time. Therefore, considering its data deficient status, we attempt to document it scientifically to create a knowledgebase pertaining to this particular species. Concurrently, this species merits further research to understand its distribution patterns in Bhutan and any related anthropogenic threats.

1999년과 2000년 여름몬순기간 동안 히말라야 지역에 발생한 대류계의 특성에 관한 연구 (Characterization of Convective Weather Systems in the Middle Himalaya during 1999 and 2000 Summer Monsoons)

  • 김광섭;노준우
    • 한국수자원학회논문집
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    • 제36권3호
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    • pp.495-505
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    • 2003
  • Meteosat-5 IR 위성영상을 사용하여 1999년과 2000년 여름몬순기간 동안 발생한 네팔과 인디아 북쪽 히말라야 산악지역에 발생하는 여러 형태의 대류계 즉, 중규모 대류계들 (Mesoscale Convective Complex, MCC and Convective Cloud Clusters, CCC) 와 보다 약한 Disorganized Short-lived Convection (DSL)의 이동특성 및 시공간적인 생성특성 등을 조사하였다. 대상지역에 발생하는 중규모 대류계의 전형적인 지속시간은 약 11시간이며 크기는 약 $300,000km^2$ 이다. 중규모 대류계의 중심은 히말라야산맥으로부터 원거리에 위치함에도 불구하고 집중강운-는 위도 $25^{\circ}-30^{\circ}N$ 사이의 히말라야 하단에 발생하는 중규모 대류계와 직접적 상관관계를 가진다. 결과는 히말라야 고도 500-4000m에 설치된 강우계로부터 획득된 강우자료의 변화 특성과 대류계 거동 특성이 유사함을 보여주었다(Barros et al. 2000). 집중호우의 강력한 야간발생과 Gangetic Plains에서 발생한 중규모 대류계와의 연관성을 보여주었다(Barros et al. 2000).

Constituents of Mallotus nepalensis Muell. Arg.: a Mild CNS Depressant

  • Rastogi, Subha;Mehrotra, Bishen Narain;Kulshreshtha, Dinesh K.
    • Natural Product Sciences
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    • 제10권5호
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    • pp.237-239
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    • 2004
  • Mallotus nepalensis (Euphorbiaceae) is a small tree found in central and eastern Himalayas, Nepal, Wallich and Sikkim. The 90% ethanolic extract of Mallotus nepalensis exhibited mild CNS depressant activity. Four compounds, lupeol (1), ${\beta}-sitosterol$ (2), ursolic acid (3) and ${\beta}-sitosterol-\;{\beta}-D-glucoside$ (4) were isolated from the 90% ethanolic extract of this plant of which 1, 3 and 4 are being reported for the first time from this species.

Diversity of Culturable Soil Micro-fungi along Altitudinal Gradients of Eastern Himalayas

  • Devi, Lamabam Sophiya;Khaund, Polashree;Nongkhlaw, Fenella M.W.;Joshi, S.R.
    • Mycobiology
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    • 제40권3호
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    • pp.151-158
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    • 2012
  • Very few studies have addressed the phylogenetic diversity of fungi from Northeast India under the Eastern Himalayan range. In the present study, an attempt has been made to study the phylogenetic diversity of culturable soil fungi along the altitudinal gradients of eastern Himalayas. Soil samples from 24 m above sea level to 2,000 m above sea level altitudes of North-East India were collected to investigate soil micro-fungal community structure and diversity. Molecular characterization of the isolates was done by PCR amplification of 18S rDNA using universal primers. Phylogenetic analysis using BLAST revealed variation in the distribution and richness of different fungal biodiversity over a wide range of altitudes. A total of 107 isolates were characterized belonging to the phyla Ascomycota and Zygomycota, corresponding to seven orders (Eurotiales, Hypocreales, Calosphaeriales, Capnodiales, Pleosporales, Mucorales, and Mortierellales) and Incertae sedis. The characterized isolates were analysed for richness, evenness and diversity indices. Fungal diversity had significant correlation with soil physico-chemical parameters and the altitude. Eurotiales and Hypocreales were most diverse and abundant group of fungi along the entire altitudinal stretch. Species of Penicillium (D=1.44) and Aspergillus (D=1.288) were found to have highest diversity index followed by Talaromyces (D=1.26) and Fusarium (D=1.26). Fungal distribution showed negative correlation with altitude and soil moisture content. Soil temperature, pH, humidity and ambient temperature showed positive correlation with fungal distribution.