The species is monoecious individual flowers are either male or female, but both sexes can be found on the same plant and is pollinated by wind. Nepal alder trees are used in land reclamation, firewood and for making charcoal. Alnus nepalensis is a deciduous or semideciduous tree with a straight trunk, up to 30 m in height and 60 cm rarely to 2 m in diameter. Alnus nepalensis, a sparsely branched, deciduous tree, grows up to 2430m in height, with a straight cylindrical bole 1. Vegetation loss and ecosystem disturbances on kedargad. Tree height ranged from 10 to 28 m, and dbh ranged from 15 to 80 cm. The potential application of alnus nepalensis for phytoremedi. Occultocarpon, a new monotypic genus of gnomoniaceae on alnus nepalensis from china article pdf available in fungal diversity 521. Floristic composition and change in species diversity over. Tea camellia sinensis plantations dominate much of the agricultural landscape in asia and usually occur as monoculture systems, impacting negatively on local biodiversity and soil health bainard et al. Alder based farming system a traditional farming practices in. The flowers are catkins, with the male and female flowers separate but produced on the same tree. In the present study, the metal accumulation capacity of a.
Various alnus species are grown to protect dikes, some are valued for timber, and the roots have nodules with nitrogenfixing bacteria. The impact of stand age 5, 10, 15, 20, 30 and 40 years on the performance of mixtures of n 2. The angami, chakhasang, chang, yimchounger, and konyak tribes of nagaland identified the property of alder tree many many years ago and started. Heat content of alnus rubra is about 4,600 kcalkg atid it, a temperate species, may yield 1021 m 3 hayr. Alnus nepalensis nepalese alder pfaf plant database. Pdf carbon sequestration potential of alnus nepalensis in the mid. There are three distinct climatic seasons of kedarnath, rainy season, summer season and winter season. Pdf this study was carried out to analyze the carbon content in different parts of alnus nepalensis, and to assess the effect of aspect and altitude. Alder is the common name of a genus of flowering plants, alnus, belonging to the birch family betulaceae.
The most allelopathic tree species was adina cordifolia, and the leastalnus nepalensis and celtis australis. Performance of an age series of alnuscardamom plantations in. Majority of the plant species having flowering and fruiting in rainy season, summer season is represented by. Alnus nepalensis utis upto an elevation and rest the alpine pasture. Media in category alnus nepalensisthe following 15 files are in this category, out of 15 total. The leaves are alternate, simple, shallowly toothed, with prominent veins parallel to each other, 716 cm long and 510 cm broad.
Chemical fertilizers are compounds containing high concentration of nutrients required for plant growth. Alnus nepalensis the nepal alder tree is found in the subtropical highlands of the himalayas. These nutrients are classified as primary nutrients, secondary nutrients, and micronutrients. Alders alnus are trees and shrubs in the birch family family betulaceae. Tea camellia sinensis plantations dominate much of the agricultural landscape in asia and usually occur as monoculture systems, impacting negatively on. Alnus nepalensis national botanical research institute, lucknow.
This key is based on vegetative characteristics, and therefore also of use when flowers and fruits are absent. The juice of the bark is boiled and the gelatinous liquid applied to burns. Phyllosphere fungi of alnus nepalensis, castanopsis hystrix. A useful diuretic for reducing swelling of the leg. Pdf effect of alnus nepalensis cultivation on soil. Alder based farming system a traditional farming practices. An alnus nepalensis in nahilalakip ha genus nga alnus, ngan familia nga betulaceae. The catkin flowers are, unusually for an alder, produced in the autumn and th. Alder trees enhance crop productivity and soil microbial. The size variation of alnus nepalensis in the study area was. Frankia genusspecific characterization by polymerase chain.
Media in category alnus nepalensis the following 15 files are in this category, out of 15 total. The record derives from wcsp data supplied on 20120323 which reports it as an accepted name record 6533 with original publication details. Alnus is one of 15 genera of trees that fix nitrogen but are not in the legume family. Don monocultures have been selected from the pankhasari range of the kalimpong forest division in the eastern himalayas. According to the phytomass files duke, 1981b, annual productivity of other alnus species ranges from 5 to 26 mtha. New plantations and large patches of amomum subulatum. Branchlets dark brown, sparsely yellow pubescent when young, glabrescent. Apart from the three main constituent elements, carbon, oxygen and hydrogen, plants require substantial quantity of nutrients. Text errors identified by the software have been corrected. Management of alnus nepalensis as an improved fallow in nagaland. Although used for nitrogen fixation, slope stabilization both of which help the energy budget of a country, the alder is also used for firewood and might be.
Ecological wood anatomy of alnus nepalensis betulaceae. Performance of an age series of alnuscardamom plantations. Betulaceae birch family medicinal use of nepalese alder. Alnus nepalensis a multipurpose tree for the tropical highlands. Don is an accepted name this name is the accepted name of a species in the genus alnus family betulaceae. The efficiency of this rapid and sensitive pcr assay was tested with an isolate obtained from alnus nepalensis nodules, confirming results obtained by nodulation tests. Don show all show tabs nepal alder general information. Nepal alder alnus nepalensis the nepal alder tree is found in the subtropical highlands of the himalayas. Full text get a printable copy pdf file of the complete article 2. In burma it has been used with success to reforest abandoned taungya areas. Alnus nepalensis is a large alder tree found in the subtropical highlands of the himalayas. The genus comprises about 2030 species of monoecious trees and shrubs, few reaching large size, distributed throughout the north temperate zone, and in the new world also along the andes southwards to chile. The genus comprises about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species extending into central america, as well as the northern and southern andes.
The record derives from wcsp which reports it as an accepted name record 6533 with original publication details. This is a deciduous alder that has silvery grey bark. Alnus nepalensis, which extensively grows in himalayas and that it is a non leguminous tree, and that it contains root nodules that host nitrogen fixing bacteria. Altitudinal, seasonal and diurnal variations in nitrogenase activity, nitrogen accretion, biomass, net primary productivity and nutrient cycling of alnus nepalensis. A total of 38 epiphytic and endophytic phyllosphere fungi were isolated from living leaves of alnus nepalensis, castanopsis hystrix and schima walichii by using a combination of cultural methods i. Here is the photo of a pure strand of alnus nepalensis from sikkim.
Three or more divergent subgroups subgenera of alnus are often treated as separate genera j. Chemical soil propeties such as organic carbon, total nitrogen, c. Chemical fertiliser an overview sciencedirect topics. An alnus nepalensis in uska species han magnoliopsida nga ginhulagway ni david don. Pdf occultocarpon, a new monotypic genus of gnomoniaceae. Don, is a non leguminous nitrogen faxing tree species. Uses as a pioneer, nitrogenfixing frankia symbiosis species it is suitable for soil improvement and rehabilitation of degraded lands. Simulation of potential distribution and migration of alnus spp. The board of trustees of the royal botanic gardens, kew. Alnus nepalensis in world checklist of selected plant families. Alnus nepalensis is a deciduous or semideciduous tree with a straight trunk, up to 30 m in height and 60. Phyllosphere fungi of alnus nepalensis, castanopsis. Alnus nepalensis is a deciduous tree growing to 22 m 72ft 2in at a fast rate. Alternaria alternata, cladosporium cladosporioides, fusarium oxysporum.
Heavy metal accumulation characteristics of nepalese alder. Alnus nepalensis is a large deciduous alder with silvergray bark that reaches up to 30 m in height and 60 cm in diameter. Alnus nepalensis is a deciduous or semideciduous tree with a straight trunk. Forests in ravines, on stream banks and occasionally in drier localities, 900 2700 metres in the himalayas. Ecological wood anatomy of alnus nepalensis betulaceae in. Effect of alnus nepalensis cultivation on soil biological and physicochemical properties during restoration near a phosphate smelter in kunyang, yunnan province, sw china article pdf available. Alnus nepalensis is part of subgenus alnus, not subgenus clethropsis.
Winrock international alnus nepalensis a multipurpose tree for. It is a fastgrowing tree that grows best in wet areas. Alnus nepalensis is a plant of the warm temperate to subtropical zones, it can also be grown at higher elevations in tropical areas with high rainfall 269 title. Samples were taken from the outermost part of the trunk of five canopy trees at 11 localities between 790 and 2,740 m above sea level. Although used for nitrogen fixation, slope stabilization both of which help the energy budget of a country, the alder is also used for firewood and might be considered for the generation of electricity. Moreover, alnus nepalensis is found dominating regenerated area and caryopteris odorata in natural forests whereas in 1995, litsea chartacea and maesa chisia were recorded dominant. Alnus maritima is part of subgenus clethropsis excl. Phyllosphere fungi of alnus nepalensis castanopsis hystrix. Heavy metal accumulation characteristics of nepalese alder alnus nepalensis growing in a leadzinc spoil heap, yunnan, southwestern china. Hostspecies andhabitat affectnodulation byspecific frankia. Long and short branching pattern, sessile winter bud, and 2yr phenology are plesiomorphies in alnus, while 1yr. The leaves are elliptical, 716 cm long and 510 cm broad, have prominent parallel veins and mildly toothed on the edges. Biomass, net primary productivity, energetics and energy efficiencies were estimated in an age series of alnuscardamom plantations in the eastern himalaya.
Hostspecies andhabitat affectnodulation byspecificfrankia. This file is licensed under the creative commons attributionshare alike 4. Management of alnus nepalensis as an improved fallow in nagaland shifting forests in northeast india. Pdf occultocarpon, a new monotypic genus of gnomoniaceae on. Wood anatomical characters ofalnus nepalensis growing in east nepal are evaluated against three nonanatomical factors. Alnus nepalensis enviscenter of nbri on plants and pollution. Alnus nepalensis national botanical research institute.
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