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Das, P. K.
- Bamboo Resources of Jharkhand
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Indian Forester, Vol 138, No 5 (2012), Pagination: 422-433Abstract
Studies have been conducted to assess bamboo resources at both forest and non-forest areas in the state of Jharkhand. Information on land use, bamboo overlapping areas in forests, demographic features of the villages, households owning bamboos, species diversity, their growth, productivity etc., have been collected on sample survey basis covering all the agro-climatic zones of the state. 14.51% of total forest area (TFA) is covered with potential natural bamboos of mainly Dendrocalamus strictus (>98% area) with average clump density of 170 (clumps ha -1). Other species encountered are Bambusa bambos and Gigantochloa albociliata. The natural bamboos are in a state of severe degradation due to indiscriminate felling by villagers, absence of any management system and lack of state vigilance. From the villages of Jharkhand altogether 10 bamboo species have been found with dominant species being Bambusa nutans (representing 84.582% of TBA and 1.314% of TGA), Dendrocalamus strictus (11.924% of TBA and 0.185% of TGA), and Bambusa bambos (2.257% on TBA and 0.035% on TGA). 1.554 % of TGA is covered by homestead bamboos which is equivalent to 16.852% of TNA and 10.442% of TNA + CW as per the land use of the state. Contrary to this, 131.769% of TNA or 59.349 % TNA + CW in three blocks of East Singhbhum district is under homestead bamboos. This indicate that, by retaining 50% of land under these two land use classes for other domestic purposes, it is possible to extend bamboo cultivation in additional 39.558% of land not used for cultural practices in the state with suitable species and adequate extension mechanism to safeguard ecological and economic scenario of the state.Keywords
, Bamboo Resources, Natural Bamboo Forest, Homestead Bamboo Cultivation, Bamboo Diversity- Influence of Vam, Macro and Micro-nutrients on Vegetative Propagation of Dendrocalamus strictus
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Indian Forester, Vol 123, No 9 (1997), Pagination: 863-866Abstract
No abstract- Leaf Anatomy and Chlorophyll Estimates in some Mangroves
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Indian Forester, Vol 121, No 4 (1995), Pagination: 289-294Abstract
Four different tree species such as Ceriops tagal, Heritiera fomes, Nipa fruticans and Rhizophora apiculata commonly grown in mangrove swamps of Sundarbans, West Bengal, were studied for the leaf anatomy, stomatal characters and chlorophyll content. They displayed very distinct anatomical and stomatal modifications. The semi-mangrove, Nipa stood distinctly different from others. Of the halophytes, Heritiera showed deeply sunken stomata, covered by trichomes. It had more chlorophyll content and higher chlorophyll alb value, but had relatively small palisade-spongy ratio. The physiological significance of these modifications was discussed in relation to their specific adaptation to mangrove vegetation.- Mass Production of Dendrocalamus membranaceus Planting Stock through Culm Cuttings at Seedling Stage
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Indian Forester, Vol 121, No 8 (1995), Pagination: 743-748Abstract
The vegetative propagation of Dendrocalamus membranaceus through seedling proliferation and juvenile culm cuttings at seedling stage have been studied with a view to obtain plantable saplings in massive numbers. It was observed that mother stock seedlings can be multiplied more than nineteen times without addition of fertilizer within one year. Rooting and sprouting from juvenile culm cuttings were inducted by growth promoting substance though differentially. Successful sprouting and ischolar_maining of culm segments collected from D. membranaceus seedlings had further augmented the availability of planting stock.- Characteristics of some Lower and Middle Hill Soils of South Sikkim Forests
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Indian Forester, Vol 118, No 9 (1992), Pagination: 662-671Abstract
Morphology and physiochemical characteristics of three soils within the altitudinal range of 315 to 1490m under different vegetal cover of South Sikkim forests are discussed. The soils are acidic with fairly high content of organic matter and total nitrogen. Exchangeable calcium is maximum at the surface of all the soils and highest under mixed broad-leaved species. Humic acid content decreases down the profile. The properties of the three soils differ fairly widely and the difference can primarily be attributed to differences in physiograpby reflected through differences in vegetal cover and ultimately in the resultant soils. The three soils have been classified upto sub-group level according to Soil Taxonomy.- Suitability of Different Forest Species for Social Forestry Programme under Different Soil Conditions. Part III-coastal Soil
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Indian Forester, Vol 117, No 8 (1991), Pagination: 625-631Abstract
The growth of different forest species planted in road-sides and canal-banks has been correlated with the soil attributes in coastal zone of Midnapore district, West Bengal. Some of the sites having better nutritional status accelerates the growth of some selected species. On the basis of the results some species have been recommended for Social Forestry Programme under the said soil condition in a given climatic zone.- Understanding the Oak, Quercus acutissima Carruthers in India
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Indian Forester, Vol 117, No 12 (1991), Pagination: 1070-1072Abstract
The name Quercus acutissima Carruthers is the valid name of the North-Eastern Regions species of oak in India. There exists no other alternative name against this Indian species. A scrutiny of synonyms mentioned in the literatures for this oak in India reveals that the use of the name Quercus serrata Thunberg can always be avoided and defendable for one reason or another.- Suitability of Different forest Species for Social Forestry Programme Under Different Soil Conditions Part II-lateritic Soil
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Indian Forester, Vol 116, No 6 (1990), Pagination: 464-473Abstract
Height and girth increment of different forest tree species planted along road-sides, canal and river banks, wastelands and along railway tracks have been studied and correlated with soil attributes of lateritic soil zone of Midnapore district, West Bengal. Some of the sites having better nutritional status accelerated the growth of some selected species. On the basis of the results some species have been identified and recommended for planting in the lateritic belt to meet the demand for fuel wood and fodder.- Distribution of Organic Matter in Coppice Sal (Shorea robusta) in Relation to Soil Chemical Attributes
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Indian Forester, Vol 116, No 5 (1990), Pagination: 407-417Abstract
The above-ground biomass production in coppice sal in the lateritic region of West Bengal reveals that wood contributes the largest share of tbe total biomass followed by bark, branch, leaves, and twigs. Largest biomass production is observed in 8 years old coppice sal. The biomass production is highly correlated wilh total K2O aod P2O6 of the soil and the age, height and girth of the stands. The wood biomass is highly correlaled with total Ca and Mg of the soil.- Suitability of Different Forest Species for Social Forestry Programme under Different Soil Conditions Part I - Alluvial Soil
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Indian Forester, Vol 115, No 8 (1989), Pagination: 536-547Abstract
The growth of forest tree species planted along road sides, canal banks and railway tract has been correlated with the soil attributes in Alluvial soil zone of Midnapore district, West Bengal. Some of the sites having better nutritional status accelerate the growth of some selected species. On the basis of the results some quick growing species for Social Forestry programme and range of soil characteristics most suitable for optimum growth of plants in a given climatic condition have been recommended.- Soil Characteristics under Sal (Shorea robusta) in Tarai Region of the North-eastern Himalayas
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Indian Forester, Vol 115, No 9 (1989), Pagination: 626-634Abstract
The nature and properties of some sal (Shorea robusta) growing soils in the tarai region of North-eastern Himalayas were studied in order to evaluate the characteristic of the soils supporting the species It was found that since sal is growing well in this area, the characteristics and nature of the soils should be favourable for the growth and development of the species Ranges of Some Of the soil sutributes suitable for the optimum growth of the species under more or less similar climatic conditions were assessed.- Soil Characteristics under Introduced Cryptomeria japonica (Dhupi) in Darjeeling Himalayan Region
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Indian Forester, Vol 113, No 3 (1987), Pagination: 191-201Abstract
The nature and properties of the soils supporting Cryptomeria japonica in Darjeelling Himalayan Region were studied. The soils are acidic and contain high organic matter. The growth parameters are inversely related to the pH and organic matter of the soils while height of plants and basal area of tbe species are positively correlated with C.E.C., exch. Ca+2,Mg+2, K+ and available phosphorus. Total nitrogen contents of the soils are correlated positively with G.B.H. and basal area but negatively with the heights of the plants. Ranges of some of the attributes suitable for the growth of the species under more or less similar climatic conditions are assessed.- Economic Analysis of Agroforestry Model Adopted by Tribal of Orissa : India
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Indian Forester, Vol 137, No 5 (2011), Pagination: 535-543Abstract
Trial has been framed to examine the economics of growing teak and cashew nut along with upland paddy in four combinations. The data trends up to 7 years of plantation were extrapolated to project the economic profit using standard economic analysis methods to interpret the benefits of various tree crop systems. The prediction has been done at 15th and 45th year (rotation age) at 7% and 15% discounting rate. The Net Present Value (NPV) predicted at rotation was found highest in land use with Agri-silviculture (teak + paddy) at 7% rate Rs 7,24,699/ha where as at 15% rate of discounting the highest NPV was observed in Agri-horticulture (cashew nut + paddy) Rs 45,255/ha, followed by Silvi-horticulture, Agri-silviculture and lowest in Agri-silvi-horticulture Rs 27,289/ha. The benefit cost ratio (BCR) was found higher 3.64 and 1.98 respectively at the 15th year in case of Silvi-horticulture (teak + cashew nut) at two extreme of discounting (7 and 15%) than that found in the other three agroforestry combinations. At rotation age of 45 years the highest BCR (6.33 and 2.64) was also found in Silvi-horticulture (teak + cashew nut) combination at 7% and 15% discounting respectively and it was found lowest in cashew nut+ paddy (4.42) at 7% and teak + cashew nut + paddy (1.78) at 15%- Compost Preparation Technique Standardization for Raw Material Mixture of Rice Straw and Rice Husk in Bulk Amount
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Affiliations
1 Rain Forest Research Institute, Jorhat, Assam, IN
1 Rain Forest Research Institute, Jorhat, Assam, IN