Alnus nepalensis national botanical research institute. Alder trees enhance crop productivity and soil microbial. 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. A useful diuretic for reducing swelling of the leg. 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. Chemical fertilizers are compounds containing high concentration of nutrients required for plant growth. Alnus nepalensis is a deciduous or semideciduous tree with a straight trunk, up to 30 m in height and 60. There are three distinct climatic seasons of kedarnath, rainy season, summer season and winter season. The most allelopathic tree species was adina cordifolia, and the leastalnus nepalensis and celtis australis. Media in category alnus nepalensisthe following 15 files are in this category, out of 15 total. In burma it has been used with success to reforest abandoned taungya areas.
The flowers are catkins, with the male and female flowers separate but produced on the same tree. The catkin flowers are, unusually for an alder, produced in the autumn and th. 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. Performance of an age series of alnuscardamom plantations in. 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. Floristic composition and change in species diversity over. Alnus nepalensis national botanical research institute, lucknow. 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. 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. Alnus nepalensis nepalese alder pfaf plant database.
Tea camellia sinensis plantations dominate much of the agricultural landscape in asia and usually occur as monoculture systems, impacting negatively on. Branchlets dark brown, sparsely yellow pubescent when young, glabrescent. Long and short branching pattern, sessile winter bud, and 2yr phenology are plesiomorphies in alnus, while 1yr. Don monocultures have been selected from the pankhasari range of the kalimpong forest division in the eastern himalayas. This file was created by scanning the printed publication. Alder is the common name of a genus of flowering plants, alnus, belonging to the birch family betulaceae. Alder based farming system a traditional farming practices.
Alnus nepalensis enviscenter of nbri on plants and pollution. Full text get a printable copy pdf file of the complete article 2. Alnus nepalensis is a deciduous tree growing to 22 m 72ft 2in at a fast rate. The juice of the bark is boiled and the gelatinous liquid applied to burns. It is a fastgrowing tree that grows best in wet areas. This key is based on vegetative characteristics, and therefore also of use when flowers and fruits are absent. This is a deciduous alder that has silvery grey bark. An alnus nepalensis in nahilalakip ha genus nga alnus, ngan familia nga betulaceae. Various alnus species are grown to protect dikes, some are valued for timber, and the roots have nodules with nitrogenfixing bacteria. Vegetation loss and ecosystem disturbances on kedargad. Management of alnus nepalensis as an improved fallow in nagaland.
Pdf effect of alnus nepalensis cultivation on soil. Nepal alder alnus nepalensis the nepal alder tree is found in the subtropical highlands of the himalayas. Heavy metal accumulation characteristics of nepalese alder alnus nepalensis growing in a leadzinc spoil heap, yunnan, southwestern china. 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. Occultocarpon, a new monotypic genus of gnomoniaceae on alnus nepalensis from china article pdf available in fungal diversity 521. The leaves are alternate, simple, shallowly toothed, with prominent veins parallel to each other, 716 cm long and 510 cm broad. Apart from the three main constituent elements, carbon, oxygen and hydrogen, plants require substantial quantity of nutrients. The potential application of alnus nepalensis for phytoremedi. Phyllosphere fungi of alnus nepalensis castanopsis hystrix. Simulation of potential distribution and migration of alnus spp. Frankia genusspecific characterization by polymerase. 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. Alnus nepalensis, a sparsely branched, deciduous tree, grows up to 2430m in height, with a straight cylindrical bole 1.
Forests in ravines, on stream banks and occasionally in drier localities, 900 2700 metres in the himalayas. Wood anatomical characters ofalnus nepalensis growing in east nepal are evaluated against three nonanatomical factors. Nepal alder trees are used in land reclamation, firewood and for making charcoal. Ecological wood anatomy of alnus nepalensis betulaceae in. Heat content of alnus rubra is about 4,600 kcalkg atid it, a temperate species, may yield 1021 m 3 hayr. 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. 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. Winrock international alnus nepalensis a multipurpose tree for. Alder based farming system a traditional farming practices in. 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 is part of subgenus alnus, not subgenus clethropsis. Alnus nepalensis utis upto an elevation and rest the alpine pasture.
The record derives from wcsp which reports it as an accepted name record 6533 with original publication details. 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. Alders alnus are trees and shrubs in the birch family family betulaceae. Pdf occultocarpon, a new monotypic genus of gnomoniaceae. Alnus nepalensis in world checklist of selected plant families. Alnus nepalensis is a deciduous or semideciduous tree with a straight trunk. Biomass, net primary productivity, energetics and energy efficiencies were estimated in an age series of alnuscardamom plantations in the eastern himalaya. Don, is a non leguminous nitrogen faxing tree species.
Media in category alnus nepalensis the following 15 files are in this category, out of 15 total. In the present study, the metal accumulation capacity of a. Frankia genusspecific characterization by polymerase chain. 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. The impact of stand age 5, 10, 15, 20, 30 and 40 years on the performance of mixtures of n 2. Chemical fertiliser an overview sciencedirect topics. None known plant information taken from the plants for a future. Heavy metal accumulation characteristics of nepalese alder.
Ecological wood anatomy of alnus nepalensis betulaceae. Here is the photo of a pure strand of alnus nepalensis from sikkim. Pdf occultocarpon, a new monotypic genus of gnomoniaceae on. Alnus nepalensis the nepal alder tree is found in the subtropical highlands of the himalayas. Alnus nepalensis a multipurpose tree for the tropical highlands. This file is licensed under the creative commons attributionshare alike 4. Chemical soil properties under five age series of alnus. New plantations and large patches of amomum subulatum. 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. Altitudinal, seasonal and diurnal variations in nitrogenase activity, nitrogen accretion, biomass, net primary productivity and nutrient cycling of alnus nepalensis.
An alnus nepalensis in uska species han magnoliopsida nga ginhulagway ni david don. The size variation of alnus nepalensis in the study area was. The board of trustees of the royal botanic gardens, kew. Phyllosphere fungi of alnus nepalensis, castanopsis. The angami, chakhasang, chang, yimchounger, and konyak tribes of nagaland identified the property of alder tree many many years ago and started. Alnus nepalensis is a large deciduous alder with silvergray bark that reaches up to 30 m in height and 60 cm in diameter.
Text errors identified by the software have been corrected. Alnus maritima is part of subgenus clethropsis excl. Majority of the plant species having flowering and fruiting in rainy season, summer season is represented by. Performance of an age series of alnuscardamom plantations. Tree height ranged from 10 to 28 m, and dbh ranged from 15 to 80 cm. Management of alnus nepalensis as an improved fallow in nagaland shifting forests in northeast india. Hostspecies andhabitat affectnodulation byspecificfrankia.
Don show all show tabs nepal alder general information. 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. Hostspecies andhabitat affectnodulation byspecific frankia. Pdf carbon sequestration potential of alnus nepalensis in the mid. These nutrients are classified as primary nutrients, secondary nutrients, and micronutrients. Don is an accepted name this name is the accepted name of a species in the genus alnus family betulaceae. According to the phytomass files duke, 1981b, annual productivity of other alnus species ranges from 5 to 26 mtha. The leaves are elliptical, 716 cm long and 510 cm broad, have prominent parallel veins and mildly toothed on the edges. Phyllosphere fungi of alnus nepalensis, castanopsis hystrix. Alnus is one of 15 genera of trees that fix nitrogen but are not in the legume family. 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. The record derives from wcsp data supplied on 20120323 which reports it as an accepted name record 6533 with original publication details.
Alnus nepalensis is a large alder tree found in the subtropical highlands of the himalayas. Alternaria alternata, cladosporium cladosporioides, fusarium oxysporum. Betulaceae birch family medicinal use of nepalese alder. Uses as a pioneer, nitrogenfixing frankia symbiosis species it is suitable for soil improvement and rehabilitation of degraded lands.
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